SHEBA: Site all Messages, 210 Entries..

Tom,	Notes  8-Oct-97, 20:30 AK

IMPORTANT QUESTION/COMMENT FOR STEVE I NEED INPUT ON:
Campbell: I haven't been able to successfully load new coefficients.
	Through EVE talk (started or stopped condition) spurious characters
	keep coming through after the message.  Also, the 2718H method
	does not go into interactive mode at all and I don't know where a
	CR10X manual is.   Does this sound like an EVE configuration
	problem, or something that you've seen before.

Misc:	Steve: yes we have spare pcmcia cards.

Weather:
	25 knot winds began this afternoon, -12C.  Worse tonight.
	Difficult working conditions, low visibility, blowing snow.
	Losing sun at 18-min/night.
	Tomorrow a low pressure system is supposed to pass near here
	and the condition may not be any better.

Logistics:
	Having Kurt on the Louie and the subsequent transit time
	back and forth really cuts down on the working hours.
	He's been voluntarily skipping going back for lunches, but
	even at that, when the dinner starts at 4:30 and the 'shuttle'
	runs roughly at 9 to here, ll:15 to there, 1 to here, 4:15 to
	there, 5:45 to here and 6:45 to there, it hurts.
	The ships are going to transfer fuel beginning tomorrow and
	possibly through Friday.  Hopefully personnel xfr after that
	and maybe Kurt will be moved here Saturday.
	I don't know what these ship schedules will do to us when
	we go out for a station setup.

Site Survey:
	-- THIS IS BECOMING A MAJOR CONCERN BECAUSE IT STILL ISN'T DONE.--
	Still waiting on Helo, they're still prioritied to bouys and
	one pilot is ill.   Don't know when flying begins.
	I'm hoping that one possible site 2km out can be surveyed and
	then setup on Friday, but that might not be possible given the
	weather.  Have discussed situation with Ed.

Status:
	1-station up on battery last night.
	TEGs: Startup has been difficult.
		We got these running this am.
		It'll took all day to adjust these and I'm still not
		certain they're right yet.
	I now have all 4 boxes on the air and TEGs up as best we could do.
	Station 3 has a Campbell/TRH running along with EVE.
	Will need to continue tweaking to optimize TEGs tomorrow.
	I broke the 'TEG-input' Amp connector on sled-2's battery box
	in the cold (they're not as good as manuf. said).   I also sprung
	sled-1 lid's hinges when it was caught by the wind.  Now the box can't
	hold the lid upright any more, and can't fix it; will need
	to use a rope.  I might be able to get another set of hinges from
	Wilson Case later this year.
	Sleds had to have their hitched modified to match the machines here.
	Hopefully we'll try towing test tomorrow.

	Shebop / RF running.  Seems to be polling OK.  No time server here
	but Gordon's software seems be alright with that even if the data
	time sync is a bit slow.   Also haven't played with trying to
	print yet: no time to do.   Gordon's documentation was extremely
	helpful and accurate from what i've seen...thanks much.
	Direct 'tip' to EVE console works pretty well (best way to do 
	console operations given difficulty w/portables) but I've just been
	physically swapping the connector to ttyb instead of bringing up/down
	ppoll.

Suggest you bring:
	Cigarette Lighters	(but available on ship here also 4z)
	Flint Striker, Cold weather Leak Detect Fluid, Procomm Manual
	Scale: bath style best to set tank on; spring OK but not as good.
	Black Compaq carrying case.  Pat should have this
		at home because I brought the Compaq without its case.
		Rocky case is lousy for the field, compaq is better.
	Tom, please ask Pat to send email to me, the addr. I have is
	wrong...thanks.

Field Computer:
	The Rocky screen 'died' last night within 15-min and it's battery
	doesn't last long, plus the mouse is hard to use.  Today it worked
	a bit better when placed directly over the TEG.  The Compaq screen
	doesn`t last.
	It is quite difficult to use.
	Service personnel will absolutely need hand warmers for the screen.
	The black compaq case is better for that purpose.

RE GORDON:
Polling Machine:
	Yes, bring the Laptop per Gordon's suggestion.
	Call it	`pampoll'	142.130.59.206
	shebop = 142.130.59.204
	rocky  = 142.130.59.205
	pampoll= 142.130.59.206
	domainname = spo.ca
	mask   = 255.255.252.0
	printer = 142.130.59.50	hp laserjet 'shebaprinter' 6M PostSc.
	printer = 142.130.59.10	hp color laserjet 5M PostSc.

RE GORDON/STEVE:
TRH / Config. Mismatch / Splus:
	The TRH data appears to have a timeout problem in the config that
	causes it to be interpreted by EVE incorrectly part of the time
	because of inconsistent parsing.  I'll try to fix 
	that by setting timeout=.5 seconds in the sbus command.
	We seem to be using fmt0055.dat now.   That's what I'll edit,
	plus on the portable.
	I also still need to confirm configurations between the EVE/Base
	versions.

	Splus came up but i couldn't read the sparse baro data from
	the station last night: error = 
		---------------------------
Error in plot.ats(x, xlim = ..1, type = ..2, col =..: all data in timeseries is
        NA
Dumped
Error in dialog.send(paste("dialog setcurrent", di..: Dialog handling system not
        started!
Error during wrapup
		---------------------------
	I assume this problem relates to inconsistencies in the config.?
	Or else because I naively asked for data from all stations when
	only 1 was up?
	So far I have only been able to try it once, there hasn't been
	much time to play with it.  Maybe the next go around it'll work.

Re GAME Transmitter:
	Not much time or documentation here to really go over this.
	My initial impression is that they've done things OK but I must
	take a better look at the message.
	I recommend watching the transmission using a RF wattmeter
	while it comes up at the scheduled time
	to make certain that the cable/antenna is OK by confirming there
	is about 10-Watts forward power and ~.7-Watts reflected.
	A bad connection/antenna will reflect considerably more and
	prevent the signal going to the spacecraft.
	There's also a possibility that the transmitter's battery voltage
	detect circuit thinks there isn't enough juice and is canceling
	the transmission itself.   If the message doesn't go out with
	10-Watts forward power, that's a possibility.   I believe there's
	something in the EVE cheat-sheet manual referencing to this circuit
	or else in the regular Signal Engineering document.   Anyway,
	I believe that if the battery droops below roughly 11.5VDC when
	the transmitter turns on, that circuit will cancel the message.

More Later, JM

Tom,	Notes  9-Oct-97, 22:45 AK


Weather: Today was better for working.  5-ish m/s, -10-ish,
	intermittent snow showers.
	Expecting calm enough conditions for the next 2-3 days, but
	it's uncertain about cloud/visibility.

Personnel: Pat and I just canceled our AK vacation.  Either Kurt or I
	can/will be prepared to stay (probably me).   No guarantees
	for rides out on the 20th.  Will play it by ear.  I'll trust
	that you (Tom) will be able to fill all the holes in the base
	with new code/expertise/time, etc.   I'll grab the ftp's from
	Gordon when available and can get to it.
	Tom: Can you have Celia change my airline reservations to
	return all the way to Denver and open-end it?

Project: The Louis repositioned adjacent to the D.G. and the fuel
	transfer began today.  It will finish 
	tomorrow.  The Louis leaves on Saturday the 11th.
	Tomorrow is the last opportunity for flying at all.  If
	conditions permit, one helo will be devoted for photo-survey
	including PAM sites.  No guarantee.  If we cannot fly, the
	sites necessarily must be found by snow-mobile and will be
	much closer to the ship.

PAM Status:
	We had a mini-mtg w/Ed,Marty,Kerry,Kurt,I which helped us get
	better organized (will be nice to have everyone together).
	We pulled all 4 sleds today ~250m to adjacent the met hut.
	That went OK, but it was nice to be going on beaten down
	tracks with only a few drifts from the wind storm.  It's going
	to be very challenging to pull these things around 'out there'
	where light and contrast are problematic.  It'll be all too easy
	to get stuck.

	One full station setup today with sensors.  All four reporting
	to base.
	Played with TEGs on 3 Sleds.  For most part they're close to
	being acceptable.
	Found first dead 4-comp fan today.
	Ed/Kerry helped quite a bit today.  Marty/ETL has already
	finished their phase-1 goals for doing before the first wave
	arrives.

Gill:	aligned with 'u' north to parallel the north on the TRH
	compass so that they are reporting similarly even though the
	xarms are 90-deg off.   We'll need to talk about how to back
	out the wdir data from the gps and magnetic deviation data
	later.   Suggestions?


Configuration / Splus:
	I rebuilt fmt0055 on the base and put that onto all stations.
	That 'timeout=.5' seems to have fixed the TRH/EVE sync
	problem: good.
	If Gordon/Steve's new fmt0050 comes here, it must have that in
	the sbus command for the TRH, or else i'll do it before
	downloading to stations.
	I haven't yet tried plotting data with the new format yet, and
	in fact haven't restarted the DAQ/pdecode yet....just did now
	at 10pm.  Will look at data hopefully early
	tomorrow......nope, no go.

	Gordon:
	Can't remember what i said before but have noticed stnplot
	doesn't seem to let me select just 1 station.
	The dialog handling system doesn't seem to be starting which is
	causing crash problems.   Should i remake splus, or wait for
	your new versions per the other message?

TRH Notes:
	Using EVE talk, the beacon came on as advertized, but it's a big
	problem not having an "OK" reply from the sensor/eve that it
	works.  Getting
		Enter Command --> BEACON
		ERROR: No response from sBus
	Is unacceptable when you're getting ready to go out into the
	night.  If there's time a new ROM with a simple reply entry in
	that command option would really help.

	PVC Mounting shields are insecure.  The panduit ties used
	don't appear to be low temp. grade.  The parts are slipping.
	We'll use our better ties, but this must be addressed.
	Perhaps some low-temp. tape?  Is that available that you
	(Steve) can get?   The as we fix it will probably work, but
	i'd hate to see the shield fall into the snow.

Logger Notes:
	Borrowed Campbell keypad and programmed sled-2 CR10X.  Worked
	very well.  RECOMMEND STEVE GET ONE ON ORDER IF NOT BRING ONE
	HERE, however we might be able to continue to borrow one as
	needed.  The EVE talk method described in our cheat sheet came
	closer to working with a different CR10X than the first one i
	tried, but it appeared to hang in the interactive mode without
	ever allowing access to the memory location.
	Will program remaining coefficients tomorrow using keypad.
	With the new EVE config. and CR10X reprogrammed I noticed on
	the startup that the logger stayed with 5-second reporting and
	I didn't see any more of the spurious characters previously
	reported.  I haven't had a chance to go through the
	config./CR10 message format to confirm this is a fix.  Will
	know when i look at the others tomorrow.

Data:	The 4-comp. data appeared a bit odd but maybe in the ball park.
	We confirmed that the physical sensor is being reported on the
	correct EVE variable.  From 7:00 tonight during low twilight,
	thin but essentially complete cloud cover, here's a rep. of the data:
	PSP in = 0, out = 0
	PYG in = 248, out = 270 (warmer ocean than air)
	Tdry = -10.15, Tdry2 = -10.26, RH = 89.05
	Baro = 1018.32  (note box temp later showed +11 when outside
	=-12, so the TEGs are definitely warming things up)
	u/v/w = consistent with observed.

Schwarz Note:
	Moving the pentapod with the schwarz takes 2 people and is
	awkward.  Plus the entire station is unstable unless it is
	directly to the south tripod leg.   Note we haven't tried the
	anchoring technique yet.  I wonder how well that small fender
	washer will work.  Hopefully tomorrow, but the time really
	does fly (if not us).

GPS Notes:
	There's a lot of drift of the ice.  Simply having
	lat/lon. probably won't be enough to find the sites, relative
	bearing and marking of the trail is needed.   (We moved about
	12 miles in the wind yesterday.)   We'll try to use the
	electric fence posts as markers.
	Having an Splus plot of ice-station drift would be helpful,
	but low priority at this point.   It would be nice at some
	point to reprogram the gps to provide heading information via
	EVE. 

Later, JM

Gordon's new ftp file was received today which included 
$PAM/config/fmt0050.dat

I edited the file to increase the trh timeout from .25 to .5 seconds,
and EVEmaked the sta00x.dat files.

These files were transferred to the Laptop and the remote stations....or
at least that's my intention to do now...

TEG: 
Propane Maintenance schedule
			Sled-1		Sled-2		Sled-3		Sled-4
			------------	--------	-----------	-------
Fill Dates		10/11, 2 ea.	10/14, 2ea.	10/12, 2 ea.	10/18,(#3,#5)
Next Fill drop-dead	31-Oct		3-Nov		1-Nov		7-Nov


Factory Ratings:
    VOC, element	3.99		3.90		3.94		3.87
    Gauge Pres. kPa	58		63		58		64

Current Settings:
	10/10/97	58/3.56		63/3.83		58/3.78		63/3.62
	10/14				64
	10/15		57				56

				Sled-1	Sled-2	Sled-3	Sled-4
DC Supply voltage (VOC)		15.0	14.5	14.5	15.0

Note: Increasing the DC supply voltage increased the power/current provided by
	the TEGS to the PAMs significantly over the factory settings of 14.1

Pressure Setting Note:
	John Hutchinson from the Global factory in Calgary said that setting 
	the pressures to factory levels seemed to be required for him at sea
	level despite what the manual says about reducing it by about 9kPa.
	He said that shouldn't damage the elements.
	Obviously periodic checking of the open circuit voltage to be less
	than the max rating of 4.1 is necessary.
 
Air/Fuel Mizture Note:
	The factory air/fuel mixture setting starting point is by
	turning full closed in the CCW direction, and then opening
	back up by 4.5 turns CW.

	On 10/10, all four TEGs were set at 1/4 turn CCW from what the
	factory setting was, making them slightly more fuel rich.

Looking at baro data for sleds 1,2,3,4
it appears that the insulation for the sleds is too good.
This morning the temps:

sled	trh	baro/electronics
  1	-17	50	full config, deployed
  2	-16	31	checkout config., no sonic 
  3	-17	50	full config., deployed
  4	n/a	25.4	checkout config, trh, 4-comp, no sonic
			This station had vent insulation removed.

MUST DO:
All three sleds 1,2,3 need to have their vent insulation removed.

The barometer temp rests on the electronics box 'bottom' plate
directly over the propane tanks.  It is probably slightly elevated
in temp. from the overall box because of the EVE heat generated.

Sonic height measurements:

Date:		Sta-1		Sta-2		Sta-3		Sta-4
10/15 (setup)	346cm		346cm		345cm		
10/23 (moved)							348cm

1/25/99 John recalls that these heights were to the center of the
        sonic arrary or "sampling volume".

Some thoughts to keep hold of for now on the Radiometer Icing Issue:

Tony is looking into stronger ventillators..

		------------------------------

Subject: Re: Rime icing
To: delany@ucar.edu (Tony Delany)
Date: Tue, 14 Oct 1997 20:20:42 -0800 (AKDT)
Cc: horst@stout.atd.ucar.edu, militzer@spows.spo.ca (John Militzer)

Tony,
> 
> John,
>      we could provide additional ventilation by either:
> ...
> If we heated the air at the ventilator it would cool
> during its passage through the tubing.
> Direct heating would have to be done at the base of each dome. 
> 
> Can you tell me the sort of weather conditions lead to riming?
> Is the riming only due to the transitional conditions which are
> occuring now or will they persists into the winter? 
>                            Tony

	Steve and Chris should be here tomorrow so we can chat about
	all this.  
	I can't answer about the 'transitional' issue, but some folks
	here seem to think that it's more common through the year
	because of the blowing snow conditions.  I saw the most of it
	during the storms we had when the winds were 20-35 knots and
	also when there was fogging.   The fans couldn't stave off the
	ice, and once iced, they can't clean them.  In fact today
	before going out to setup sta2, we had to take the 4-comp into
	the met-hut for warming to free things up and dry.  Having a
	small heater in the schwarz might help but i'm frankly not
	sure.  Judging from the power data, there's quite a bit of
	spare: perhaps 1 Amp, but i want to keep some in reserve for
	battery recharging when/if that becomes necessary.  Menwhile,
	see my note in the status rpt about the excess heat in the
	sleds from the TEGs.  You're probably right that the air would
	cool too much going out to the sawhorse.
	More ventillation should help, but i doubt in 20-30 knot winds
	anything we can realistically put in would overcome that.
	The Scientific Solutions approach was to put the radiometer
	(1-each) on a rotating plate that is programmable to cover-up
	the sensor, heat it and calibrate during non-measurement
	periods.  Their config. is to measure 1 value during ~30-sec
	ea. hour.  (Note they have a motorized auto self-leveling
	system).  Because its programmable, they can set it up to run
	continuously and then cover/clear maybe 1-hour/day for
	example.  Problem = patented, expensive ($15K), and only
	1-component. 
	We might be able to rig something that includes a small 10-ish
	watt heater at the base of the domes as you mentioned to turn
	on for maybe 1-hour every 12/24 hours and hope that would
	remove any buildup in addition to the stronger fans.  The main
	battery can handle the excess and we could use a power
	switching circuit similar to what's in the trh.  In fact,
	we've talked about integrating the whole thing anyway, and
	with its own CPU, we could also build in that motorized self
	leveler.   (PS leveling the sawhorse thingey without screwing
	up the snow is extreme difficult esp, when the legs are frozen
	solid).
	Anyway, I have doubts that the fans we have will last very
	long anyway either in the 4-comp or trh.  Icing will effect
	them too, if not the serious cold.
JM

From yesterday's station visits, I have in my notes that my impression of
the icing amount on station 4 was greater than that observed on stations
1 and 3.  This is significant because Station 4 didn't have the ventillator
plugged in the previous night.

So, the ventillator does appear to be doing some good, but is inadequate.
That might imply that a 'turbo' solution could have some hope of working.

Date: Wed, 15 Oct 1997 17:03:10 -0600
From: Terry Hock 
To: militzer@shebaship.apl.washington.edu
CC: horst@stout.atd.ucar.EDU
Subject: Re: comm questions from John

Hi John,

How's the weather?

> Tom,    Notes  Monday 13-Oct-97, 20:30 AK
> 
> Communication Problems,  Bad News:
> 
>         A: The line-of-sight to station 2's location was behind the
>         main mast from the antenna.  The survey crew apparently had
>         forgotten to check for that.  As a result we began looking for
>         an alternative antenna location on the mast using the 200'
>         cable and spare antenna we brought.  The places we tried
>         performed worse than the CG installation in terms of 'seeing'
>         stations 1&3.  What we really needed was an installation on
>         top of the rear mast as originally planned, but that should
>         have been done in Quebec and is probably not possible now,
>         certainly not with the cable/spare antenna we brought, which
>         is either bad or has too much loss.  The ship is definitely a
>         hostile environment for the low power freewaves.
> 
>         For now:
>         This evening Pierre (ace elec.tech./eng.) and i moved the stub RG213
>         cable he'd built to the main mast as a jumper from the starboard
>         antenna mount to a point higher on the mast he found
>         as an alternative.  This point has better LOS to all 3
>         station locations, but we haven't made it permanent
>         yet.   Also it is behind the radar, which could be a problem
>         when that is operating.   I don't know how much power/freq. it
>         operates on and whether that might bomb the freewave when it
>         is turned on.   We might be able to move our antenna behind
>         the mast from the radar though.  Anyway, I have seen data
>         coming in from all 4 sleds which is encouraging, and am able
>         to do console operations with each.   Admittedly it is quite
>         'rough' with sta-3 and many characters are dropped.   Sending
>         big blocks of data is more robust.
> 
>         One worry is when breakup begins.   For now, the 3 site are
>         probably 'fixed', but with breakup there's a chance that the
>         station(s) could move outside the antenna look angle although
>         the new location is about as good as we can get on the main mast.
> 
>         To consider:
> 
>         Possibly a crossed yaggi arrangement using a splitter to hit
>         the major quadrants around the mast.  This could be either 2,
>         using the reduced gain back lobe, or else 4 antennas, but the
>         3db loss per splitter is an issue.
> 
>         Tom, please discuss this situation with Terry and Freewave:
>         Could a splitter/crossed yaggi arrangement likely work?
>         Also, we're in international waters where no-one is, can the
>         power be increased of the radios?
> 
>         - Also, access to the rear mast might be more possible in spring
>         and we could measure the distance and build a better cable,
>         mount arrangement for installing then.
>         - Another thought would be to install the yaggis on the PAMs,
>         The risk is rotation moving them out of LOS; i recall the
>         yaggis have 30-deg. beam.  That would require a new mount but
>         that'd not be too difficult.  It may be worthwhile to consider
>         bringing the yaggis up and building a 1" PVC or steel pipe
>         arrangement to clamp the yaggis to.
> 
>         - A higher power radio might be a good idea.  One of the
>         project folks says they use HF (good range, lower data rate)
>         up here and never need worry about licensing.
> 
>         - Final thought (ask terry about this): we could put our GOES
>         radios back in, put on Omni's (maybe the ones we have would
>         work) and maybe send the data to Boulder (the elevation angle
>         is about 5 degrees here to GOES-west) and email status
>         reports to the ship.   One problem is that we don't currently
>         have an access to a GOES-west channel, but i could probably
>         arrange that later this fall.
> 
>   JM
> 

A couple of observations in regards to your questions.  Tom informed me
that the range to the PAM sites is about 2 miles.  The path loss for 2
miles is quite low for what the Freewave radios are designed for, there
should be a SIGNIFICANT margin if the radios are line of sight and in
the 2 mile range. This would be true also if omni directional antenna's
were also used in lie of the yagi antenna's you are currently using.
I think there is some fundamental  problem with the installation besides
the mast blocking the LOS from the antenna.  Are the Freewave radios
outside in the cold temperatures or are they in a environmentally
controlled area at both ends to the RF link.  To increase the power of
the radios would only have a small improvement in performance and
probably not noticeable, the max. power is 1 watt and I assume there
power level is close to that now.  I would be surprised if the power can
be set greater than 1 watt due to FCC certification.  Even though the
FCC does not govern your area, Freewave has no incentive to build radios
for that applications with higher power.  The loss in the RG-213 can be
reduced by about half by using TIME coax, this again would be only a
small improvement.

The best option would be to go to separate antennas with the power
dividers which would certainly increase the loss of the system by 3.5 dB
for a two-way or 7 dB for a 4-way but if true blockage is your problem
then you are fighting a 20 dB problem. 

 I think your problem is more of severe blockage of the RF signal or the
Freeewave radios have a temperature problem.  The other possibility is
that there is some other instrument which is causing interference or
generating noise in the 900 MHz band.

Let me know a few more details about the RF conditions and I will then
call Freewave to get there thoughts on the problem.   Please correct me
if my assumptions are wrong.

Terry

P.S.  Let's not yet think of using GOES transmitters yet.

From militzer@spows.spo.ca  Thu Oct 16 20:20:09 1997
From: John Militzer 
Subject: Re: comm questions from John
To: hock@ucar.edu
Date: Thu, 16 Oct 1997 20:18:22 -0800 (AKDT)
Cc: horst@stout.atd.ucar.edu, militzer@spows.spo.ca (John Militzer)

Hi Terry,

> How's the weather?

	Cold, now windy now, but it sure can be (really miserable in
	25m/s at -15 or more...can't hardly wait until winter
	arrives).  We do have some icing on the sensors, etc.  I'm
	beginning to believe we should cover our omni's (on the remote
	stations) with plastic/poly tube similar to what the
	Coast-Guard did for our base station antenna.  Any comments or
	experience?


> I think there is some fundamental  problem with the installation besides
> the mast blocking the LOS from the antenna.  Are the Freewave radios
> outside in the cold temperatures or are they in a environmentally
> controlled area at both ends to the RF link.

	The freewaves are inside the ship and inside the electronic's
	box that is inside the insulated Thermal Generator (TEG) Box at the
	stations.   I've noted that the temps as reported by the
	barometer also inside that electr. box have gone quite high,
	as much as 40-50C.  Since that, I removed some insulation from
	the TEG boxes and the temps. have been closer to 25-30.
	Yes I think that was a problem.
 
> A couple of observations in regards to your questions.  Tom informed me
> that the range to the PAM sites is about 2 miles.  The path loss for 2
> miles is quite low for what the Freewave radios are designed for, there
> should be a SIGNIFICANT margin if the radios are line of sight and in
> the 2 mile range. This would be true also if omni directional antenna's
> were also used in lie of the yagi antenna's you are currently using.

	Note, we're using the 5db gain omni's on both ends.
	I agree about the path-loss and margin, or at least that's
	what i thought previously.   One of the problems appears to be
	ground plane.  The ice doesn't conduct very well, so we're
	stuck with the 4 prongs on the antenna alone.  Here's an
	interesting one: after moving the antenna on the ship, we got
	some improvement in LOS for the area (which permitted us to
	set up the 3rd site where the scientists wanted it, otherwise
	it would have been directly behind the 10'dia.mast), but the
	apparent problems with one station persisted.  I went to that
	station yesterday.  All connections were OK, and I removed the
	box insulation (noted below) to help reduce the temp in the
	box.  However I did notice that the sled's metal tow-bar was
	in the upright position, seemingly in the path of the lower
	1/4-1/3 of the antenna, so I lowered it out of the way.  The
	link with that station has definitely improved but it's still
	not perfect (note, all of the data messages are making it to
	the base).  I'm thinking that maybe an improved ground plane
	would help.  That could maybe be alum. foil, or a plate
	attached to the flat lid of the TEG box, or a jumper wire put
	through a hole drilled in the ice to make it to seawater.  The
	second idea doesn't seem necessary, but the bouy folks here
	do this commonly and have reported good noise reduction for
	sensors at least using this technique.  Any ideas.

> for that applications with higher power.  The loss in the RG-213 can be
> reduced by about half by using TIME coax, this again would be only a
> small improvement.
> 
	The cable the Coast Guard used for the installation was along
	the lines of TIME, and we used a short 15' section of 213 to
	splice over to the new higher railing location for the
	antenna.
	This is working definitely better but we're on the main mast
	where there's lots of other RF.  I'll bring some photos back
	to show you the installation.

>  I think your problem is more of severe blockage of the RF signal or the
> Freeewave radios have a temperature problem.  The other possibility is
> that there is some other instrument which is causing interference or
> generating noise in the 900 MHz band.
> 
	The elec. tech. who was here said their stuff in the 900 is
	down (cellular, etc.)

> P.S.  Let's not yet think of using GOES transmitters yet.
> 
	I tend to agree.

  Over the last few days we have been trying to determine
the cause of the glitches on TRH data. We decided to try to
things: (1) increase the poll time from EVE to 5 secs, and (2)
add limit checks to the TRH data since the spikes seemed to be
very large values. The first item was based on a past test of
increasing the polling to 2 seconds which increased the time
period between spikes to 4 hours (1 second poll had a 2 hour
window). Also, a data file was collected last night from the
spare TRH unit. There were no bad data points when run at a
5 second sampling rate.
  Stations 1 thru 3 have the new configuration. Station 4 still
has the 2 second sampling period with the limit check. If the
data looks good tomorrow morning, then station 4 will be re-
configured with a 5 second sample poll and no limit checks.
This may give us a clue as to the source of the problem.

  The sonic flag counts started increasing at about
0:00 GMT. There was a sharp decrease in temperature,
from -10 C to -17 C, over a 3 hour period before the counts
went up.

  The problem with the sonics appears to be related to icing.
Station 4 transducers were covered. After cleaning the signals
were ok. 

  Sonics are stilled iced up at stations 1 thru 3. We cleaned
off station 4 and it came back to normal operation.

  The sonics continue to be a problem. Even after cleaning with
a broom signals do not look good. There maybe a fine film of ice
covering the transducers. Maybe a spray bottle of isopropol alchol
would help.

  Teh sonic scontinue to ice up. Even after we clean them the
data looks bad. At station 3 today we tryed using an alcohol swap
to help remove ice in the transducers. Based on the time series
plots there was some improvement but it still looked bad. If this is
a continuing process we need to give some serious thought on how
to prevent it. A heat source would probable be the best thing.
Something we turn on every few hours for a short time.

  At times the thermistor and platinum temperatures stray
from each other. When the iceing around the shield is cleaned
off the temps agree much better. The icing maybe the
reason. An example is day 26th at 10 to 11 am local at station
3. You can see an effect due to shield cleaning.

  I started adding the set screws to the shield mount attaching
to the electronics housing on the TRH sensors. The spare sensor
was sent out to station 4 and station 4 sensor was sent to
station 2. Hopefully stations 1 and 3 will get done in the next
few days.

  The sonic response at stations 2 and 4 has improved to the point
where the data is believable. The temperatures have risen so the
icing may be shedding off. These sites have had their sonics cleaned
over the last few days while 1 and 3 have not. We will get to 1 and 3
today and clean the sonics. 

  The comapss on/off settings in all TRH are now set
the same. The on time is 10 minutes and the off is 4 seconds.
WARNING:  The off time should not be set lower than this.

  The sonics were well behaved until about 9:00 local time.
Florida and Atlanta started coming back to life at 22:00 local.

> Some uncertainty has arisen about the exact method that you use to
> access the sonics when cleaning them, particularly how you are able to
> warm the transducers with your fingers.  Do you climb onto the tripod
> and then reach out to the sonic?  Do you remove the sonic from the
> boom?  Do you lower the mast to bring the sonic down to ground (snow)
> level?
        The very first time I cleaned a sonic beyond brushing it with the
feather duster, I climbed onto the tripod, and removed the one screw
holding the sonic base support to the horizontal arm.  With the sonic
temporarily upside down, I cleaned the heads.  This was rather cumbersome,
and didn't bode well for the future of the cable connector.
        Ever since then, we have taken a ladder along with us on the 
emergency gear sled.  I punch the ladder legs into the snow, climb up the 
ladder, and melt the frost with my fingers.

	Florida, being right by the ship, gets more frequent cleaning.  On 
some cleanings, we just step up on the tripod and clean the sonic frost off 
with the feather duster.

	If conditions are ripe for riming, no matter the method of cleaning, 
the sonics rime back up usually within 2 hours.

I note your recent comments that T.plat is higher than T.therm at Atl
and Fla.   I looked back over the data from November and January and
see that for all stations T.plat - T.therm ranges from 0 to 0.2 C.
Steve Semmer reminded me that we had noticed and discussed this
difference previously.

The platinum element is the standard Vaisala 50Y temperature sensor and
is enclosed, along with the humidity sensor, in a porous shield
designed to protect the humidity sensor from contamination.  The
operating range of the platinum sensor does not extend below -40C and
therefore we added the thermistor sensor to measure temperatures below
-40C.  The thermistor is mounted external to the porous shield.

The laboratory calibration of both the platinum and thermistor sensors 
is better than 0.1 C.  We suspect that the platinum temperature sensor
is not dissipating its self-heating as effectively as the thermistor
sensor because the porous shield restricts the heat exchange with the
ambient air.  One useful test of this hypothesis would be to remove the
porous shield from the hygrothermometer at Florida for a day or two.
However, this is not a top priority and could easily wait until Tony
is on site if you do not have time before he arrives.

Please add this explanation to the logbook as a separate entry.

Tom

From 3/31/98 16Z through 4/1/98 16Z
-20 C 15-20 kts SE winds -S cloudy

VOLTAGES/CURRENTS: 		Atl  13.5, Bal 13.5, Fla 14.1
				Atl ~ 0.75 Bal 0.9    Fla 1.2
	
BOX TEMPS:   Atl 4  Bal 12  Fla  20  all up, Atl came up 23 UTC

SONICS  Heating cycles every 1.25 h
        One heating cycle at Atlanta as Jeff restarted it at 23 UTC
	Winds increasing
	u,v components at Atl greatly different than other two
	u,v components at Fla slightly different than at Bal
	    -floe rotations?
        Atl w~0.05, Bal w~-0.4, Fla w~+0.6 Concerns of Bal&Fla not being level??

PRES: falling 999.7

T: Atl -19.5, Bal -19.5, Fla -19.7

RH: Atl 81%, Bal 78%, Fla 82% 
Fla and Atl trends similar, but Fla values slightly higher
Bal trend slightly different than the other two, and lower values

4-Component Rad:
	Atl >300 max SW  -80 LWnet
	BAL  brought in for fan change
	FLA  >300 max SW  -80 LWnet(scales will be increased tomorrow)
	Both sites show mostly clear conditions all day
	Fla radiometers cleaned at 1700 UTC-dime-size rime on SW down

T and G: No Fla Gsoil,
	Atl Tsoil still around -2C
	Atl Gsoil at -3.6 W/m2 while +10 W/m2 at Bal
	

LEVELS and COMPASS: No level at Bal
        Spike in compass at Atl shortly after restart
	Bal compass has a 2 deg drop 
	Fla compass increased 1 deg over 8h
	
MISCELLANEOUS: New lead opened to W and NW of ship towards runway.  Should
	not seriously affect today's flights.
<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>

From 4/1/98 16Z through 4/2/98 16Z
-23 C 2 kts SE winds overcast crud

STATIONS:	Atl:  Up
		Balt: Up, no 4-comp.
		Clev: Not setup
		Fla:  Moved, Down between ~19:15 - 00:45(4/2) UTC
			No Gsoil, Tsoil hanging in mid-air after move.
			Intention is to move it again after radiometer
			intercomparison with Clev. for PYR dome removal.

VOLTAGES/CURRENTS: 		Atl  13.5, Bal 13.3, Fla 13.0
				Atl ~ 0.8 Bal 0.6   Fla 1.1

BOX TEMPS:   Atl 5-30 deg.
	     Bal 12-30 deg.
	     Fla 12-32 deg.

SONICS  Baltimore heating cycles every 1.25 h,  Reprogrammed trh timing
	to heaton=5, heatoff=3600 at 03:35 4/3 UTC.
        One heating cycle at Florida when box put back on air at new location
	~00:50 4/3 UTC.
	u,v components at Fla different than other two
	Gill alignment on boom adjusted by ~ 13-deg CW from top to have 'N'
	in line with mounting arm.
        W: Atl 0.05, Bal ~-0.4, Fla wide variation from ~0-.6 beginning 13:00
	4/2 UTC

PRES: rising from ~998.5 - 1004

T:  ~-16 to -24 all similar

RH: Atl 80-86%, Bal 75-90%, Fla 80-90% 
Trends similar, Bal slightly more variation

4-Component Rad:
	Atl ~250 max SWin  -50 LWnet
	BAL  brought in for fan change
	FLA  ~160 max SWin  -50 LWnet
	Both sites show mostly ovcast conditions all day

T and G: No Fla Gsoil,
	Tsoil: Atl still around -2C, Bal. -10
	Gsoil: Atl at -3 W/m2, Bal falling 10-6 W/m2
	

LEVELS and COMPASS: No level at Bal
        Spike in compass at Atl shortly after restart
	Bal compass has a 2 deg drop 
	Fla compass increased 1 deg over 8h
	
MISCELLANEOUS: New lead opened to W and NW of ship towards runway.
	Did not affect flights on 4/1 and 4/2.
	We. 4/1 Cleveland sled shoveled and hauled out of slush before
	freezing in. 	Placed adjacent new Florida site W. of met hut.
	Th. 4/2 entire day spent digging/pulling out met storage hut
	and contents from slush before freezing in from water overflow
	after nearby lead event last week.  Spare boxes and misc eqpt
	packed on ship and seatainer. 
	Baltimore 4-comp radiometer plenums diassembled and given to ship's
	engineer/machinist to modify for new ventillator assy.  

<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>

From 4/2/98 16Z through 4/3/98 16Z
WEATHER:	-22 to -14C, ~light winds
		Appeared Sunny most of 4/2. Cloud cover moved in later on in
		afternoon.

STATIONS:	Atl:  Up
		Balt: Up, no 4-comp.
		Clev: Not setup
		Fla:  New location
			No Gsoil, Tsoil hanging in mid-air after move.
			Intention is to move it again after radiometer
			intercomparison with Clev. for PYR dome removal.

VOLTAGES:		Atl  14.5, Bal 13.5, Fla 12.6 dropping some
CURRENTS:	Iload:	Atl ~ 0.8, Bal 0.6,   Fla varied .8-1.2
		Icharg: Atl 1.1 and dropping, Bal 1.0, Fl varied 1.2-1.4

BOX TEMPS:   Atl 15-35 deg.
	     Bal 20-35 deg.
	     Fla 30-35 deg.

SONICS: Atl: Flags OK, no heating cycles
		Reduced variation in w compared to others
	Balt: Reprogrammed trh timing to heaton=5, heatoff=3600 at
		03:35 4/3 UTC, one heat cycle / flag at about 11Z
	Fla:  many heating cycles / flags beginning ~13:00Z, see Visit_Log.
		Noticeable spiking in w beginning at about same time.

PRES:	Consistent, all rising from ~1004 to ~1010

T:	Consistent, all rising from ~-22 to -14

RH:	Consistent, Atl 80-90%, Bal 80-90%, Fla 80-94% 

4-Component Rad:
	BAL  Down, brought in for fan change
	Atl, Fla Consistent, ~300 max SWin, ~25 max SWout, ~-50 LWnet


T and G: No Fla Gsoil,
	Tsoil: Atl still around -2C, Bal. -9.5, Fla. exposed to air.
	Gsoil: Atl bad (possible ridge seen from bridge),
		Bal falling 6-5 W/m2,
		Fla not installed.

LEVELS and COMPASS: No level at Bal
	Bal compass has a 2 deg drop 
	Fla compass noisy (~3-deg) during riming.
	
MISCELLANEOUS: 
	Fr. 4/3 Cleveland sled running in later afternoon.  Setup
	4-component on 3-legged rad stand parallel to Fla. system.
	Both facing roughly SE.  Clev. system not yet aspirated;
	no level, tsoil, HFT, sonic, trh.
	Added passive air vent. w/weather-head to top of sled but
	not the heat motor yet.
	Baltimore 4-comp radiometer plenums finished ready for reassembly.


<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>

From 4/3/98 16Z through 4/4/98 16Z

WEATHER:	-22 to -14C, ~winds increasing on 4/4 to ~"7m/s
		Cloudy throughout 4/3, sunny 4/4
		Good riming condition 4/3, cleared off 4/4

STATIONS:	Atl:  Up
		Balt: Up, no 4-comp.
		Clev: New location next to Fl.
			No Tsoil, Gsoil, level, sonic, trh
		Fla:  New location
			No Gsoil, Tsoil hanging in mid-air after move.
			Intention is to move it again after radiometer
			intercomparison with Clev. for PYR dome removal.

VOLTAGES:		Atl  14.5, Bal 13.5, Fla 13.2
CURRENTS:	Iload:	Atl 0.8, Cle .4, Bal 0.6, Fla varied 1
		Icharg: Atl 1.2, Cle .8, Bal 1.0, Fl varied 1.3

BOX TEMPS:   Atl 15-35 deg.
	     Cle 10-30 deg.
	     Bal 25-35 deg.
	     Fla 30-35 deg.

SONICS: Atl: Flags OK, no heating cycles
		Much quieter, and reduced variation in w compared to
		others.
	Balt: some riming indicated, heating cycle 4/4 ~14:00AKST
		looks cleaned
	Fla:  many more heating cycles / flags beginning 3/3 ~13:00Z,
		through 4/4 7:00 Z.

PRES:	Consistent, all dropping from ~1011 to ~1008

T:	Consistent, all droping from ~-14 to -19

RH:	Consistent, dropping from ~88 to 86%, slightly more variation
	at Balt.

4-Component Rad:
	BAL  Down, brought in for fan change
	Atl, Fla Consistent, ~200 max SWin, ~180 max SWout


T and G: No Fla Gsoil,
	Tsoil: Atl still around -2C, Bal. -8.5, Fla. exposed to air.
	Gsoil: Atl may be OK, cycled around -2.5
		Bal falling ~5.5 to 3.5 W/m2,
		Fla not installed.

LEVELS and COMPASS: No level at Bal
COMPASS	Atl and Bal show similar variation of 1.5 deg cycle
	Fla compass more noisy with some spikes.
	
MISCELLANEOUS: 
	Fr. 4/3 Cleveland sled running in later afternoon.  Setup
	4-component on 3-legged rad stand parallel to Fla. system.
	Both facing roughly SE.  Clev. system not yet aspirated;
	no level, tsoil, HFT, sonic, trh.

<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>

From 4/4/98 14Z through 4/5/98 14Z

WEATHER:	-19 to -14C, ~winds from NE ~"5-8m/s
		Sunny throughout 4/4, overcast overnight
		Some riming conditions through 4/5, but not nearly
		as much as on 4/3,4 (LW domes did clear off afternoon
		of 4/4 but SW still getting it a bit)

STATIONS:	Atl:  Up
		Balt: Up, no 4-comp.
		Clev: New location next to Fl.
			No Tsoil, Gsoil, sonic, trh, SW domes off
		Fla:  New location
			No Gsoil, Tsoil hanging in mid-air after move.
			Intention is to move it again after radiometer
			intercomparison with Clev. for PYR dome removal.

VOLTAGES:	Atl  14.3, Cle 13.5 rising, Bal 13.6, Fla 13.2 rising
CURRENTS:	Iload:	Atl .8, Cle .6, Bal .6, Fla varied 1.0
			(cycling at Atl, probably heater)
		Icharg: Atl 1.1, Cle 1.4, Bal 1.0, Fla 1.3

BOX TEMPS:   Atl 15-35 deg.
	     Cle 10-30 deg.
	     Bal 25-35 deg.
	     Fla 30-35 deg.

SONICS: Atl: Flags OK, maybe 1 or heating cycles at Fla.
	Wdir: consistent.
	Wspd: Atl. has seemed noticably less than Fla/Bal by about 1-2 m/s 
		Also reduced W magnitudes (more level?).
		Note this station has more snow, almost up to the horiz. tripod
		rails so the reduced magnitude is probably a surface friction
		effect.

PRES:	Consistent, all dropping from ~1007 to ~1001

T:	Consistent, min/max ~-19 to -14, Balt. T.therm/plat has less
	difference that Fla./Atl.

RH:	Consistent, Atl 84-87, Bal.83-87, Fla. 85-89

4-Component Rad:
	Consistent waveforms, but see notes about Fla/Clev
	BAL  Down, brought in for fan change
	Atl, has significantly lower SWin so what, it is either iced
	up more or iced up less?
	LW Consistent but Clev. still has a DC bias of perhaps +25W/m**2.


T and G: No Fla Gsoil,
	Tsoil: Atl still around -2C, Bal. -8.5, Fla. exposed to air.
		Clev not installed.
	Gsoil: Atl slowly dropping around -2.5
		Bal slowly rising around 3.7 W/m**2,
		Clev/Fla not installed.

LEVELS: No level at Bal., Added Clev.
	Atl x~ -1.3 y good; Clev. x~.2, y~.8; Fla. good

COMPASS: Atl and Bal show similar noisy variation of 1.5 deg cycle perhaps
	 wind effect, Fla compass much less noisy.
	
MISCELLANEOUS: 
	Looks like new small lead heading toward Runway from older lead
	between ship and RW.
	Almost thought i could see Baltimore w/binoculars, silly me.
 

From 4/5/98 14Z through 4/6/98 16Z

WEATHER: -19 to -14C, ~winds from NE ~"5-8m/s
	Sunny through most of 4/5, and into 4/6.
	1-2 cm of fresh snow overnight.  Warm temperatures, no wind.

BASE:	Pampoll had to be rebooted.  Someone cycled the UPS yesterday,
	battery discharged, etc.  Ppoll, etc. rebooted
	just fine.  Had to rerun qcplots by hand...

STATIONS:	Atl:  Up
		Balt: Up, no 4-comp.
		Clev: New location next to Fl.
			No Tsoil, Gsoil, sonic, trh, SW domes off
		Fla:  New location
			No Gsoil, Tsoil hanging in mid-air after move.
			Intention is to move it again after radiometer
			intercomparison with Clev. for PYR dome removal.

VOLTAGES:	Atl  14.36 Cle 13.8 rising, Bal 13.6, Fla 13.4 rising
CURRENTS:	Iload:	Atl .8, Cle .6, Bal .6, Fla varied 1.0
			(cycling at Atl, probably heater)
		Icharg: Atl 1.1, Cle 1.4, Bal 1.0, Fla 1.3

BOX TEMPS:   Atl 15-35 deg.
	     Cle 20-35 deg.
	     Bal 25-35 deg.
	     Fla 10-28 deg.

SONICS: Atl: Flags OK
	Wdir: all sites had wind shift to W, values consistent.
	Wspd: Wind speeds very similar, with major features showing up at all 3           sites. W magnitudes similar (0-0.4 m/s) but different sites have 
         different signs.	

PRES:	Consistent, all rising from ~1001 to ~1008

T:	Consistent, temperatures rose from ~-19 to -15.  Balt. T therm/plat has 
        much less difference than at Atl & Fla.

RH:	Nighttime drying at all 3 sites, but moister at Fla.

4-Component Rad:
	Consistent waveforms, but see notes about Fla/Clev
	BAL  Down, brought in for fan change
	More SW in/out at Cle than the others
        No frost this morning (4/6), but snow partially covered LW,SW in
        Cleared at 1800 UTC
	LW Consistent but Clev. still has a DC bias of perhaps +25W/m**2.
        Cle Tcase/dome slightly higher than Fla


T and G: No Fla Gsoil,
	Tsoil: Atl still around -2C, Bal. -7.9 and rising, Fla. exposed to air.
		Clev not installed.
	Gsoil: Atl constant around -2.7
		Bal constant around 3.7 W/m**2,
		Clev/Fla not installed.

LEVELS: No level at Bal. All levels within 1 deg of 0 deg.
	Atl x~ -1.3 y=0.2; Clev. x~.2, y~.8; Fla. x~0.2 y~0.1

COMPASS: Atl and Bal show similar noisy variation of 1.0- 1.5 deg, Balt 
         changes slightly greater
	 Fla compass much less noisy and of different character
	
MISCELLANEOUS: 

From 4/6/98 14Z through 4/7/98 14Z

WEATHER: -24 to -16C, Sunny, winds<2.5 all day 4/6.
	Some high cirrus(?) / partly overcast through night and 
	some also during 4/6

BASE:	OK

STATIONS:  Atl:  Up
	   Balt: Up, no 4-comp.
	   Clev: Up, New location next to Fl.
			trh added ~23Z 4/6, sonic added ~19Z 4/6
			No Tsoil, Gsoil, SW domes off
	   Fla:  Up, New location
			No Gsoil, Tsoil hanging in mid-air after move.

VOLT/CUR:  Atl 14.4, .7/1.1 cycling iload: no doubt trh heater needs reprog
	   Cle 13.8 rising, was .8/1.4 but after adding wind gen. it shows
			up .2/.5  Checked it w/meter and PC, looked OK but
			monitor circuit messed up, however vbatt still looks
			believable.
	   Bal 13.4, .6/1.0
	   Fla 13.4, 1.0/1.4


BOX TEMPS: Atl 30-35 deg.
	   Cle 15-30 deg. Lots of variation, someone must've opened box!
			With wind gen. added, new 2" cable access port cut in.
			Appears to reduce box temp combined w/heat motor vent
	   Bal 33-37 deg.
	   Fla 25-32 deg.

SONICS: Atl: Flags OK.  Note brief heating cycles on Atl. and Clev. too.
			Need to reprog trh's
	Wdir: consistent except Clev....need to re-shoot boom and set
			orientation.dat
	Wspd: Consistent.
	W: Atl, Cle w/ATI's clearly lower variation in magnitudes

PRES:	Consistent, rizing, ~1007-1020

T:	Consistent, min/max ~-24 to -16,
	Clev. Fla. consistent & very close

RH:	Consistent, ~80-90%,
	Fla. shows 6% higher than adjacent Clev., someone's off.

4-Component Rad:
	Consistent waveforms
	   Atl, has significantly lower SWin so what, it is either iced
		up more or iced up less?
	   Cle  The lack of outter SW dome clearly shows the ~5-8% higher signal
		than at the adjacent Fla.  Otherwise very consistent values.
		Note that Ola cleaned both sets of domes early yesterday.
		LW were OK, but incoming still showing the mentioned bias: some-
		times consistent, other times ~25W/m**2 high
	   BAL  Down, brought in for fan change
	   Fla. See note above w/Cle.

T/Gsoil:   Atl	Still in slush around -1.9C, G at ~-2.5w/m**2
	   Cle	Not installed.
	   Bal. -7.65 rising from -7.8; G at about 3.3 w/m**2
	   Fla	No Gsoil, Tsoil dangling in and exposed to air (waiting to
		dig in after station move).

LEVELS:	   Atl	x is off ~ -1.3
	   Cel	y is off ~ .9
	   Bal	Not installed
	   Fla	Good.

COMPASS: Atl and Bal show similar fluctuations of about 4-deg
	 Fla. and Cle much more stable.
	
MISCELLANEOUS: 

From 4/7/98 14Z through 4/8/98 14Z

WEATHER: -24 to -16C, Reasonably sunny but also partial overcast during 4/7
	- 4/8,  more overcast through morning 4/8
	winds 2-5.5m/s

BASE:	OK

STATIONS:  Atl:  Up
	   Balt: Up, no 4-comp.
	   Clev: Up, New location next to Fl.
			No Tsoil, Gsoil, SW domes off
	   Fla:  Up, New location
			No Gsoil, Tsoil hanging in mid-air after move.

VOLT/CUR:  Atl 14.4, .7/1.2 Cycling iload, check trh heater cycle, same
			as others = 5 heaton, 3600 heatoff.
			Easy to see PV voltage and some charging impressed
			on Vteg.  One panel has pretty good align to sun.
	   Cle 13.8 holding, .2/.5 currents after adding wind gen.
			Need to recheck w/meter and PC, looked OK but
			monitor circuit messed up, Vbatt still OK
	   Bal 13.4, .6/1.0 odd v/load/charge cycle ~20-21Z on 4/6 but no
			sonic heating evident, maybe trh fan?
	   Fla 13.4, slowly rising 1.0/1.4


BOX TEMPS: All dropping through period
	   Atl 5-30 deg., opened 2 vent holes on 4/6.  did not completely
			cover louvers, but they are protected by PV panel.
	   Cle 5-20 deg. Lots of variation, someone must've opened box!
			With wind gen. added, new 2" cable access port cut in.
			Appears to reduce box temp combined w/heat motor vent
	   Bal 15-35 deg.
	   Fla 12-25 deg.

SONICS: All flags OK.
	Atl: Flags OK and data looks OK but there was a small bit of rime on
			the V during site visit.
	Wdir: consistent except Clev....off.  Reprog. orientation.dat
			Boom at 356, trh at 269 so set to 87.  Note plot
			appears 90-deg off so setting to 87 vs 60?...
	Wspd: Consistent.
	W: Atl, Cle w/ATI's clearly lower variation in magnitudes, seems
		a bit suspicious.

PRES:	Consistent, rizing, ~1021-1019 dropping

T:	Consistent, min/max ~-22 to -14,
	Clev. Fla. consistent & very close

RH:	Consistent waveforms, ~82-90%,
	Fla. shows ~3-5% higher than adjacent Clev., someone's off.

4-Component Rad:
	Consistent waveforms
	   Atl, Higher SWin but cleaned later during site visit at about 0Z,4/8.
	   Cle  The lack of outter SW dome shows the ~5-8% higher signal
		than at the adjacent Fla.  Otherwise consistent values.
		Note that Ola cleaned domes again yesterday, 4/7.
		LW were OK, but incoming still showing the mentioned bias: some-
		times consistent, other times ~25W/m**2 high
	   BAL  Down, brought in for fan change
	   Fla. See note above w/Cle.

T/Gsoil:   Atl	Still in slush around -1.85C, G at ~-2.4w/m**2
	   Cle	Not installed.
	   Bal. -7.6 rising to -7.4; G varying around about 3.5 w/m**2
	   Fla	No Gsoil, Tsoil dangling in and exposed to air (waiting to
		dig in after station move).

LEVELS:	   Atl	x is off ~ -1.3, Releveled during site visit ~0Z,4/8, but
		note that the x still only improved in reading to ~-1.  Ola
		leveled, JM didn't double check independently.
	   Cel	y is off ~ .9
	   Bal	Not installed
	   Fla	Good.

COMPASS: Bal shows a couple of quick shifts of ~2 deg, Atl ~1.5...lead work?
	 Fla. and Cle similar but varying roughly 1.5-deg over period.
	 Appears some small cracks working a bit, sailing along.
	
MISCELLANEOUS: 

BEGINNING for

From 4/8/98 14Z through 4/9/98 14Z

WEATHER: -24 to -16C, 4/8 overcast, snowing,
	healthy winds between 6-7m/s dropping overnight,
	low visibility/contrast on 4/8.

BASE:	Pampoll down at ~7Z 4/9. No response over net
	login screen took user but never returned for pswd
	Cycled power to get back up, booted OK.

STATIONS:  Atl:  Up
	   Balt: Up, no 4-comp.
		Ran out of fuel on 4/9.   Jay/Dean scouted route
		to Balt.: difficult, 4 leads, ridges, etc.
		Weather permitting will try to go out w/fuel tomorrow.
	   Clev: Up, New location next to Fl.
			No Tsoil, Gsoil, SW domes off
	   Fla:  Up, 4-comp off for awhile
			No Gsoil, Tsoil hanging in mid-air after move.

VOLT/CUR:  Atl 14.4, .7/1.2 Cycling max-iload, check trh heater cycle, same
			with Clev. both have ATI's which may be factor.
			Can see PV voltage and some charging impressed
			on Vteg.  One panel has pretty good align to sun.
	   Cle 13.8, .7/1.2 removed wind gen. which wasn't producing
			Added 1-PV, some voltage rise/
			monitor circuit messed up, Vbatt still OK
	   Bal 13.6, .6/1.0
	   Fla 13.6, 1.1/1.6, removed 4-comp in middle of day.

BOX TEMPS: All dropping through period
	   Atl 10-30 deg., opened 2 vent holes on 4/6.  did not completely
			cover louvers, but they are protected by PV panel.
	   Cle 0-23 deg. Opened box off and on
	   Bal 15-40 deg.
	   Fla 10-30 deg. Opened box off and on
			Added 2" new cable access vent, have not covered
			louver

SONICS: All flags OK.
	Bal: shows maybe 1 short heat cycle at about 0Z 4/9
	Wdir: consistent except Clev....off.  Reprog. orientation.dat
			Boom at 356, trh at 269 so set to 87.  Note plot
			appears 90-deg off so setting to 87 vs 60?...
	Wspd: Consistent.
	W: Atl, Cle w/ATI's clearly lower variation in magnitudes, very
			suspicious will wait to deploy ATI to Balt.

PRES:	Consistent, rizing, ~1017.5-1020.5

T:	Consistent, min/max ~-20 to -12,
	Clev. Fla. consistent & very close

RH:	Consistent waveforms, ~84-90%,
	Fla. shows ~3-5% higher than adjacent Clev., someone's off.

4-Component Rad:
	Consistent waveforms
	   Fla/Clev. Both SW rimed but not as bad.  Less difference between
		them and ETL domes morning of 4/8.  Cleaned around 9:30 AKDT
	   Atl, 
	   Cle  The lack of outter SW dome shows the ~5-8% higher signal
		than at the adjacent Fla.  Otherwise consistent values.
		Note that Ola cleaned domes again yesterday, 4/8 at about 9:30
		AKDT.
		LW were OK, but incoming still showing bias: some-
		times consistent, other times ~25W/m**2 high
	   BAL  Down, brought in for fan change
	   Fla. System removed from tower ~15:00 - 21:00 AKDT 4/8

T/Gsoil:   Atl	Still in slush around -1.85C, G at ~-2.2w/m**2 but possibly
		broken
	   Cle	Not installed.
	   Bal. ~ -7.4 rising to -7.2; G varying around about 3.5 w/m**2
	   Fla	No Gsoil, Tsoil dangling in and exposed to air (waiting to
		dig in after station move).

LEVELS:	   Atl	x is off ~ -1.3, Releveled during site visit ~0Z,4/8, but
		note that the x still only improved in reading to ~-1.
	   Cel	y is off ~ .9, releveled and came within .45
	   Bal	Not installed
	   Fla	Good.

COMPASS: Bal shows a couple of quick shifts of ~2 deg, Atl ~1.5...lead work?
	 Fla. and Cle consistent but varying roughly 1-deg over period.

	
MISCELLANEOUS: 
	Spent most of Th.4/9 afternoon helping to cleanup old camp.
	9 people worked 2+ hours just trying to get 20 fuel drums out
	of the snow (completely covered) and ice (bottom half frozen in).
	Four barrels were recovered, one with a small leak, before one
	of the picks opened a hole to the water and the pit filled in,
	ending the job.  Seems like this sink-hole is roughly at the same
	depth as the met hut 100 yds away.  Met hut OK for now.

From 4/9/98 14Z through 4/10/98 14Z

WEATHER: -16 to -10C, 
	Winds increasing from south at ~2-4 m/s then to east up to ~6m/s
	over period.

BASE:	OK

STATIONS:  Atl:  Up
		Has 2 PV's
	   Balt: Died at ~ 22z 4/9
		Ran out of fuel on 4/9 two hours before going down.
		When fuel went, vbatt immediately dropped to 12.5, held
		a bit then trailed off......BAD battery.
		Weather permitting will try to go out w/fuel,batt,ATI,
		4-comp,PV, Sunday.  Difficult trip, don't know how many
		passages will be possible before I leave.  Almost certainly
		not 3.  Hopefully twice.
		Tomorrow is aircraft day for logistics crew.
	   Clev: Up, New location next to Fl.
			No Tsoil, Gsoil, SW domes off
			Has 2 PV's
	   Fla:  Up, 4-comp off for awhile
			No Gsoil, Tsoil hanging in mid-air after move.
			Has 1 PV

VOLT/CUR:  Atl 14.5, .7/1.1 Cycling max-iload, check trh heater cycle, same
			with Clev. both have ATI's which may be factor.
			Can see PV voltage and some charging impressed
			on Vteg.  One panel has pretty good align to sun.
	   Cle 13.8, .75/1.1 removed wind gen. which wasn't producing
			Added 1-PV, some voltage rise/
			monitor circuit messed up, Vbatt still OK
	   Bal 0.0
	   Fla 13.0, dropping with 4-comp heater, 1.5/1.8

BOX TEMPS: Atl 15-30 deg.
	   Cle 5-25 deg. Opened box off and on
	   Bal dropping fast!
	   Fla 15-33 deg. Opened box off and on

SONICS: All flags OK.  Fla heating cycles on ~ 7:30 and 11:00 AKDT 4/9
	Bal:
	Wdir: consistent except Clev.... still 90-deg off.
			Checked via EVE: looks consistent w/ observed.
	Wspd: Consistent.
	W: Atl, Cle w/ATI's clearly lower variation in magnitudes, very
			suspicious will wait to deploy ATI to Balt.

PRES:	Consistent, rizing, ~1020 rising to 1024.5  dropping to 1021.5

T:	Consistent, min/max ~-16 to -10,

RH:	Consistent waveforms, ~84-90%,
	Fla. shows ~4% higher than adjacent Clev.

4-Component Rad:
	Consistent waveforms
	   Fla/Clev. All domes clear in AM.  Plenty of wind.
	   Atl, 
	   Cle  No outter SW domes
		Otherwise consistent values.
		LW were OK, but incoming still showing bias: some-
		times consistent, other times ~25W/m**2 high
	   BAL  Down, brought in for fan change
	   Fla. OK

T/Gsoil:   Atl	Still in slush around -1.9C, G at ~-1.5w/m**2 slowly
		rising from ~-2.2
	   Cle	Not installed.
	   Bal. ~ -7.3 rising, G dropping form  3.5 - 2.9 w/m**2 before
		station down.
	   Fla	No Gsoil, Tsoil dangling in and exposed to air (waiting to
		dig in after station move).

LEVELS:	   Atl	x is off ~ -1.0, y OK 
	   Cel	x ~.2, y is off ~ .4
	   Bal	Not installed
	   Fla	x ~.4, y ~.1

COMPASS: Bal shows a shifts of ~1.5 deg
	 Fla. spiking occassionally.  Both Clev./Fla. tend to show a slow
		1.5 deg rotation.

	
MISCELLANEOUS: 
	Power work on met hut.  Dean/Jay tying in new generator.
	Switched over to small generator during work.

From:	Steve Oncley, (some edits/additions from John M.)
Subject: sonic serial numbers


Enclosed is a summary I've just made of logbook comments pertaining to moving
the sonics.   According to my reading, the current status is:
Atlanta: ATI 0202
Cleveland: ATI 0303
Baltimore: Gill 123 (Kurt thinks that this has the "weird" mount)
Florida: Gill 87
Spares: Gill 104 (original spare);
	Gill  67 (old Cleveland, no heaters);
	Gill 112 heater installed (last used on Florida)

Notes on Rotated Mounts (North arrow with respect to boom):
	s/n 87	13   deg CCW viewed from top measured on site by compass.
	s/n 112 34.2 deg CCW viewed from top measured by machinist on ship
	s/n 67  47.3 deg  CW viewed from top measured by machinist on ship

s/n-87
I note that comments 33 and 349 should pertain to the same sensor (87), and 
indicate that the 13 degree problem developed during handling, rather than
being a problem during set-up.  Furthermore, this Gill should have had a 
"good" mount, with the screws installed, so slippage would not be expected.
[JWM note, this mount was not 'good' and as noted it did not slip.  In
order to install all 3 screws, the mis-machined mount required the sonic
head to be rotated.  When realigned 2 screws were removed to get it right]

s/n-112
On Oct 16th this sonic alignment was corrected for N outward from boom.
Noting that on Jan 15th it was removed from Atlanta, the heater installed and
put on Florida.  On feb 26th is was removed and replaced at Florida with an ATI.
It is unclear when the mount was rotated by 34.2 degrees.

s/n-67
Was installed at Cleveland on Oct 14th.  The next entry refers to retrieval
after the crunch of Clev. on Feb 13.  It is unclear, but possible that
the mount was incorrect at setup.  Possibly notes buried in Daily_Status
may shed light on these questions.

-----------------------------------------------------------------------
Logbook	Date	Site	Sonic	Comment
Comment			s/n

26	oct 11	all		Gill: aligned with 'u' north to parallel the 
				north on the TRH compass so that they are 
				reporting similarly even though the xarms are 
				90-deg off.
31	oct 12	1	112	Carl Friehe's R2 sonisc s/n 112? installed
33	oct 13	3	87	NCAR asymmetric R2A sonic s/n 119? installed
37	oct 14	2	67	ETL asymmetric R2A sonic s/n
38/41	oct 16	1	112	[A]symmetric Gill sonic realigned to have 
				'north' pointing outward from the boom arm
39/42	oct 16	3	87	[a]Symmetric Gill sonic realigned to have 
				'north' pointing outward from the boom arm
212	jan 13	4	123	Removed Florida's sonic and TRH for 
				installation at Baltimore.
		3	87	Installed Baltimore's sonic and TRH, with 
				sonic heater modifications made to them, at 
				Florida.
216	jan 15	4	87	Removed sonic and TRH from Florida to install 
				at Atlanta.
217	jan 15	1	87	Installed modified TRH and sonic with head 
				heaters.
221	jan 17	4	112	Installed Atlanta's old TRH and sonic at 
				Florida.  Sonic now has head heaters on it.
258	feb 13	2	67	Retrieved in apparently operational condition 
				... the sonic unit...
267	feb 20	4	112	Inspected Florida in order to decide how to 
				replace Gill sonic with ATI sonic 
282	feb 26	4	0202	install ATI and to try to get ATi to operate.
328	mar 21	1	0202	Replaced Gill sonic with Fla ATI
329	mar 21	4	87	Gill sonic from Atl put back on
348	apr 1	4	87	Florida moved.  The orientation of the sonic 
				is at 360 deg true and the T/RH is at 86 deg 
				true.
349	apr 1	4	87	The Gill sonic head was rotated so N arrow is 
				now due north by removing two of the three set
				screws, since the N arrow was originally about
				10-15 deg off (CCW viewed from the top) from 
				the sonic arm.
362	apr 6	2	0303	Installed ATI #3 on Cleveland for check 
				against Fla. Both sonics [Fla] pointing N.
				ATI boom: 333 + 23 variation
				TRH boom:  66 + 23 variation
				ATI is approximately .5-m lower than Gill.  
				Have not measured vertical distance to snow 
				surface (of today)

From 4/10/98 14Z through 4/11/98 14Z

WEATHER: -16 to -10C, 
	Healthy Winds from 5-10m/s from east
	Clearing later.
	AM 4/11, bright, clear.  Big lead between ship and runway
	is now a big ridge.  At least some leads on route to Balt.
	also closed; looks rougher.
	Saturday, today, is aircraft day for logistics crew.

BASE:	OK, qcplot indicating some data gaps in Fla,Clev,Atl
	that are inconsistent with what 'show_met/rad' have.

STATIONS:  Atl:  Up, Data gap ~17:50 - 19:10
			Has 2 PV's
	   Balt: Down
		Ran out of fuel on 4/9
	   Clev: Up, Data gap ~12:45 - 16:45 AKDT
			Bad Tsoil, SW domes on
			4-comp off for awhile
			Has 2 PV's
	   Fla:  Up, Data gap ~12:45 - 16:45 AKDT
			Has 1 PV, Wind Gen.

VOLT/CUR:  Atl 14.5, .7/1.1 Cycling max-iload,
	   Cle 13.8, .75/1.1
			Apparent pulsing on imaxcharge
			like Atl doesn't show up so much after wind-gen
			removed.  Believe to be sample timing of A/D.
	   Bal 0.0	
	   Fla 13.0, Additional load with 2nd 4-comp heater.  Wind gen
			installed from Clev to help with load.
			NOTE: with wind gen. the vbatt nicely hit and
			stayed on 14.5; encouraging but....
			4/11 removed wind gen. which was causing monitor
			circuit headaches: ground problem, plus
			there is a question about the 'earth' ground
			and internal wiring because of difference between
			unit NCAR wired per instructions and ABS Alaska did.
	   All stations with PV are showing some charging via that
			generally appears to be about .36-A per
			panel in clear sun.   Ie not enough to
			run station, but could really help for boosting
			4-comp heater, or resurrecting a down station
			for awhile.

BOX TEMPS: Atl 15-2 deg.
	   Cle 10- -2 deg.
	   Bal.
	   Fla 25-10 deg.

SONICS: All flags OK.  Fla shows 1 heating cycle ~ 19:30Z 4/11..why?
			no riming anywhere to be seen.
	Bal:
	Wdir: consistent except Clev. 
			Checked via EVE: looks consistent w/ observed
			last night (4/11 early Z).
			GPS apparently not connected, no declination.
			However Atl and Cle. wind components look 90-deg
			different (station orientation issue)
	Wspd: Fla. shows higher than Clev. by about 1 m/s Wind coming
			through Fla tower toward Clev. and higher Gill
			than ATI
			Atl more consistent w/Clev. (both ATI)
	W: Atl, Cle w/ATI's clearly lower variation in magnitudes, very
			suspicious will wait to deploy ATI to Balt.

PRES:	Consistent, cyle from ~1021.5 down to 1018.5  rising to 1020

T:	Consistent, general drop from -11 to -19, with nice bit of warm,
			moister air coming through around 1-4:30Z 4/11
			(apparently not accompanied by wdir shift although
			nice strong winds around 4:30)...leads closing fast
			around here.
RH:	Consistent waveforms, ~90-80%,
	Fla. shows ~4% higher than adjacent Clev.

4-Component Rad:
	Consistent waveforms
	   Fla/Clev. All domes clear.  Plenty of wind.
	   Atl, OK
	   Cle  OK, Outter SW domes installed by ~2:30Z 4/11
		NOTE	SWin w/domes very consistent with Fla.
			but SWout is ~25w/m**2 lower.  This is caused
			either by the scratch on the outter dome, or
			our attempt to passively de-ice using an antifog.
	   BAL  Down
	   Fla. OK
	LW shows nice clear sky and cloud moving over around 11-13Z

T/Gsoil:   Atl	Still in slush around -1.9C, G at ~-1.8w/m**2 
	   Cle	G Installed ~0Z 4/11, ~3w/m**2, no T
	   Bal. Down
	   Fla	Tsoil put at snow/ice ~0Z 4/11, ~-9, G ~1.2w/m**2

LEVELS:	   Atl	x is off ~ -1.0, y ~.1
	   Cel	x ~.0, y ~ .5
	   Bal	Not installed
	   Fla	x ~.4, y ~.1

COMPASS: Consistent similar slow rotations of ~2 deg for Atl,Cle,Fla.

	
MISCELLANEOUS: 

Sonic height above the snow were measured today:
	Atl: ATI	89"
	Cle: ATI	111"
	Fla: gill	131"

From 4/11/98 14Z through 4/12/98 14Z

WEATHER: -12 to -21C, 
	Healthy Winds from 5-8m/s from east, colder than previous day.
	AM 4/12, bright, clear.
	Ice cracked around ship during night.  2 huts had to be moved.
	Lots of little cracks around the area.  Wind hodling the ice
	together.
	Sunday, today, is another aircraft day for logistics crew.

BASE:	Up.  Qcplots did not run properly.  /home full.
	Purged some netcdf files for Oct/Nov.  Splus likes to crash alot.

STATIONS:  Atl:  Up,	Has 2 PV's
	   Balt: Down	Ran out of fuel on 4/9
	   Clev: Up,	SW domes on
			Has 2 PV's
	   Fla:  Up,	Has 1 PV, Wind Gen.

VOLT/CUR:  Atl 14.5, .8/1.1 Cycling max-iload,
	   Cle 13.7, .8/1.2
			some pulsing on imaxcharge
	   Bal 0.0	Down
	   Fla 12.7,1.6/1.7  Additional load with 2nd 4-comp heater.
			Operated without wind gen., just 1-PV and TEG.
			Overnight the vbatt slowly dropped from 13 to 12.7
			indicating both under charged batt and error
			in iload/icharge reported.  Disconnected internal
			batt box ground, readings 'improved' to show true
			load/charge relationship on 4/12.

BOX TEMPS: Atl -3 - 3 deg.
	   Cle -10- 0 deg.
	   Bal. Down
	   Fla 10 deg.

SONICS: All flags OK.	Cle shows 1 heating cycle ~ 2:30Z 4/12
			no riming anywhere to be seen.
	Bal:
	Wdir: consistent even Clev. now that GPS connected.
	Wspd: Fla. very consistent w/ Clev.
			Atl lower in higher winds by about 1.5m/s (6-8m/s
	W:    OK. Atl may have boom level out.  More variation in Gill at Fla.
			Experts consider ATI doing better.


PRES:	Consistent, drop from ~1022 down to 1020

T:	Consistent, general drop from ~-12 to -21,

RH:	Consistent waveforms, ~75-82%,
	Fla. shows ~4-6% higher than adjacent Clev.

4-Component Rad:
	Consistent waveforms
	   Fla/Clev. Both domes on,  All domes clear.
	   Atl, OK
	   Cle  OK, Outter SW domes installed by ~2:30Z 4/11
		NOTE	SWin w/domes very consistent with Fla.
			but SWout is ~25w/m**2 lower.  This is caused
			either by the scratch on the outter dome, or
			our attempt to passively de-ice using an antifog.
	   BAL  Down
	   Fla. OK
	LW shows nice clear sky and cloud moving over around 11-13Z

T/Gsoil:   Atl	Still in slush around -1.9C, G rising from  ~-2.2 to -1.9w/m**2 
	   Cle	~-5.95C,  -G dropping ~4.2 to 3.8w/m**2, no T
	   Bal. Down
	   Fla	~-8.7, ~3C colder than nearby Clev., G ~2.0w/m**2
		Double checked the s/n of loggers and sensors at Fla/Cle.
		
LEVELS:	   Atl	x is off ~ -1.0, y ~.1
	   Cel	x ~.0, y ~ .5
	   Bal	Not installed
	   Fla	x ~.4, y ~.1

COMPASS: Consistent waveforms

	
MISCELLANEOUS: 

From 4/13/98 14Z through 4/14/98 14Z

WEATHER: -20 rising to -14C, 
	4/14 am high overcast some fog, Light winds, later clear, good
		visible contrast
	4/15 am overcast 

BASE:	Up.

STATIONS:  Atl:  Up,	Has 2 PV's
	   Balt: Down	Ran out of fuel on 4/9
	   Clev: Up,	SW domes on
			Has 1 PV, running on PV/batt
	   Fla:  Up,	Has 1 PV,

VOLT/CUR:  Atl 14.5, .8/1.1 Cycling max-iload,
	   Cle 13.7, .8/1.2
			Running on battery while teg cleaning/cycling
	   Bal 0.0	Down
	   Fla 12.7,1.6/1.7  Additional load with 2nd 4-comp heater.
			1-PV and TEG.
			Overnight the vbatt slowly dropping from 13 to 12.7
			indicating both under charged batt and error
			in iload/icharge reported.  Disconnected internal
			batt box ground, readings 'improved' to show true
			load/charge relationship on 4/12.

BOX TEMPS: Atl -3 - 3 deg.
	   Cle -10- 0 deg.
	   Bal. Down
	   Fla 10 deg.

SONICS: Cle ATI removed.
	All flags OK.
	Bal:
	Wdir: consistent even Clev. now that GPS connected.
	Wspd: Fla. very consistent w/ Clev.
			Atl lower in higher winds by about 1.5m/s (6-8m/s
	W:    OK. Atl may have boom level out.  More variation in Gill at Fla.

PRES:	Consistent, drop from ~1019 down to 1014

T:	Consistent, general rise from ~-20 to -14,

RH:	Consistent waveforms Cle/Fla, ~72-87%,
	Atl shows less variation that Cle./Fla. more moist than Cle. 78-85%
	2 days ago there was a small nearby lead.
	Fla shows ~3-4% higher than adjacent Clev.

4-Component Rad:
	Consistent waveforms  Max SWin ~350, 
	   Fla/Clev. Both domes on,  All domes clear.
	   Atl, OK, domes clear
	   Cle  OK, Outter SW domes installed by ~2:30Z 4/11
		NOTE	SWin w/domes very consistent with Fla.
			Cleaned SWout now consistent with Fla.
	   BAL  Down
	   Fla. OK

T/Gsoil:   Atl	Still in slush/ice around -1.9C, G rising at  ~-1.8 w/m**2 
	   Cle	~-5.85C,  -G ~ 3.9 w/m**2
	   Bal. Down
	   Fla	~-8.8, ~3C colder than nearby Clev., G ~2.1 slow cylc up/back w/m**2
		
LEVELS:	   Atl	x is off ~ -1.0, y ~.2
	   Cel	x ~.0, y ~ .5
	   Bal	Not installed
	   Fla	x ~.4, y ~.1

COMPASS: OK, Shows less variation than last few days.

	
MISCELLANEOUS: 

From 4/14/98 14Z through 4/15/98 14Z

WEATHER: - Temps varying around -15C
	4/14 am high overcast some fog, Light winds, later clear, good
		visible contrast.  Winds from E (5-6.5 lowering to 4-5)
	4/15 am overcast

BASE:	OK.

STATIONS:  Atl:  Up,	Has 2 PV's
	   Balt: Up,	2 PVs
	   Clev: Up,	SW domes on
			Has 1 PV, running on PV/batt
	   Fla:  Up,	Has 1 PV,

VOLT/CUR:  Atl 14.5, .8/1.1 Cycling max-iload,
	   Cle 11.7 (in am), .8/(over 2 during sun, then tapering to 0)
			Running on battery while teg cleaning/cycling,
			can see 1 PV helping out during day.
			No sonic.
	   Bal 12.9,1.0/1.3	Service visit ending 4/15 ~1:00Z.  Station
			went down shortly after leaving, then came
			back at ~3:00Z.
			2-PV, maybe just too time to warm up?
	   Fla 12.5,1.6/1.7  Additional load with 2nd 4-comp heater.
			1-PV, TEG and wind gen connected.
			1 SWin heater
			Iload/charge data garbage w/win-gen plugged in.

BOX TEMPS: Atl ~20 deg. fairly constant
	   Cle -10 deg. fairly constant
	   Bal. ~5 deg. after coming up. (initially reported at about -15)
	   Fla 10 deg.

SONICS: Cle   No sonic.
	All flags OK.
	Bal:
	Wdir: Consistent, need to edit orientation.dat for Balt. w/ATI
	Wspd: Consistent
	W:    OK.  Balt/Atl may have boom level issue.

PRES:	Consistent, drop from ~1009 down to 1005

T:	Consistent, general cycle around -16, min-18,max-14

RH:	Consistent waveforms Cle/Fla, ~70-85% for Cle, 80-85% Atl,
		Bal around 85 for data so far.
	Atl shows less variation that Cle./Fla. more moist
	Fla shows ~3-4% higher than adjacent Clev.

4-Component Rad:
	Consistent looking waveforms  Max SWin ~350, 
	   Fla/Clev. Both domes on,  Note logged small amount of ice
			on Fla yesterday am.  Did not clean.  Note signal
			is higher than Clev. by maybe 25 w/m**2.
			All other domes were clear.
	   Atl, OK,
	   Cle  OK, Outter SW domes installed by ~2:30Z 4/11
	   BAL  Reinstalled on 4/15 1:Z, consistent looking

T/Gsoil:   Atl	Still in slush/ice around -1.9C, G at  ~ -1.3 w/m**2 
	   Cle	~-5.55C rising,  -G ~ 3.1 w/m**2
	   Bal. Reinstalled, T ~ -7.1,  G rising from 4.5 to 5.5
	   Fla	~-8.35 rising, ~3C colder than nearby Clev., G ~2.1 slow cylc up/back w/m**2
		
LEVELS:	   Atl	x ~ -1.0, y ~.2
	   Cel	x ~.0, y ~ .5
	   Bal	Reinstalled x~.5, y~.4
	   Fla	x ~.4, y ~.3

COMPASS: OK, Consistent looking. All show variations ~1-deg over period.

	
MISCELLANEOUS: 

From 4/15/98 14Z through 4/16/98 16Z

WEATHER: - Temps varying around -15C
	4/15 am high overcast some fog, NE winds 4-5.5 m/s, later clear, good
		visible contrast.
	4/16 am overcast, foggy

BASE:	Pampoll died yesterday, had to reboot.  Everything came up OK.

STATIONS:  Atl:  Up,	Has 2 PV's
	   Balt: Up	2 PV
	   Clev: Up,	SW domes on
			Has 1 PV, running on PV/batt until ~1z 5/16 when
			TEG reinstalled.  Wind Gen installed at about
			3Z.
	   Fla:  Up,	Has 1 PV

VOLT/CUR:  Atl 14.5, .8/1.1 Cycling max-iload,
	   Cle 11.7 (in am), .8/(over 2 during sun, then tapering to 0)
			Running on battery while teg cleaning/cycling,
			can see 1 PV helping out during day.  When
			wind gen installed, iload/icharge become nonsense.
			No sonic.
	   Bal 12.9,.8/1.3	
			2-PV, TEG.
	   Fla 12.0,1.6/1.7  Additional load with 2nd 4-comp heater.
			1-PV, TEG ran out. 
			1 SWin heater
			Iload/charge data garbage w/win-gen plugged in.

BOX TEMPS: Atl ~15 deg. fairly constant
	   Cle -10 rising to 10 when TEG reinstalled.
	   Bal. ~5 deg. fairly constant
	   Fla 15 dropping to -7 when TEG ran out.

SONICS: Cle   No sonic.
	All flags OK.
	Bal:  Lower wind speeds, 1 glitch at about 1Z 4/16
	Wdir: Consistent, winds from NE
	Wspd: Consistent
	W:    OK.  Balt/Atl may have boom level issue.

PRES:	Consistent, rising from ~1005 to 1008

T:	Consistent,max -13, min -18

RH:	Consistent waveforms Cle/Fla, ~70-85% for Cle, 80-85% Atl,
		Bal around 85 for data so far.
	Atl/Bal show less variation that Cle./Fla.
	Fla shows ~3-4% higher than adjacent Clev.

4-Component Rad:
	Consistent looking waveforms  Max SWin ~320, 
	   Fla/Clev. Both domes on,  Note small amount of ice
			on domes in am; see log.
	   Atl, OK,
	   Cle  OK, Outter SW domes installed by ~2:30Z 4/11
	   BAL  Reinstalled on 4/15 1:Z, consistent looking

T/Gsoil:   Atl	Still in slush/ice around -2C, G at  ~ -1.2 w/m**2 
	   Cle	~-5,  -G ~ 3.1 w/m**2
	   Bal. T ~ -7.1,  G ~5
	   Fla	~-8.1, ~3deg colder than nearby Clev., G ~1.3
		
LEVELS:	   Atl	x ~ -1.0, y ~.2
	   Cel	x ~.0, y ~ .5
	   Bal	Reinstalled x~.5, y~.4
	   Fla	x ~.4, y ~.3

COMPASS: OK, Consistent looking. More variations in Atl/Fla ~1.5 deg over period.

	
MISCELLANEOUS: 

John, Jeff:

  Kurt ran some tests on the level sensor from Baltimore. The error we
see agrees with the data from Baltimore when the sensor was installed
there. We talked to Geomechanics about re-calibrating the sensor and
found out the source of our error. It is in the calibration data set
they provide us. After they calibrate the sensor, they remove the offset
from the fit. As an example, their data shows the y axis of the
Baltimore sensor was off by -2.46 degrees when the output signal was 0.0
volts. Kurt's test data gives an offset of -2.39 degrees. These numbers
are in agreemnet with the logbook entries. I have asked Geomechanics to
send us the offset values for all the level sensors so we can apply
corrections. One of you should add this comment to logbook so it is
documented.
Thanks!

Steve

PS - We did let Geomechanics know that their data sheets do not mention
anything about this offset!

From 4/16/98 14Z through 4/17/98 14Z

WEATHER: - Temps varying around -15C
	4/16 overcast but good visibility, NE to SE winds diminishing
		from ~4-5.5 to 1-2 m/s,
		by evening snow / blowing snow low vis.
	4/17 am overcast, warm, calm 

BASE:	Up

STATIONS:  Atl:  Up,	Has 2 PV's
	   Balt: Up	2 PV
	   Seat: Gap	Down/Moved ~4/16, 17:30 to 4/17, 3Z
			SW domes on, No sonic
		
	   Fla:  Died at ~10:30Z 4/16  Battery running station drained.
			no trh, down ~4/16 15:30
			Power system went haywire before outage.
			Uncertain exactly what was going.

VOLT/CUR:  Atl 14.5, .8/1.1 Cycling max-iload,
	   Sea 13.8, .8/1.4
			No sonic.
	   Bal 13.7, .8/1.3	
			2-PV, TEG.
	   Fla 11.5, 1.6/2.0?  Additional load with 2nd 4-comp heater.
			1-PV, TEG ran out. 
			1 SWin heater

BOX TEMPS: Atl rose to 30-deg
	   Sea rose to 30-deg after restart.
	   Bal. rose to 30-deg
	   Fla  rose to 30-deg

SONICS: Sea   No sonic.
	All flags OK.
	Bal:  Lower wind speeds, 1 glitch at about 1Z 4/16
	Wdir: Consistent, winds from NE-SSE
	Wspd: Consistent
	W:    OK.

PRES:	Consistent, fairly stable around 1007.5

T:	Consistent, slowly rising over period from -13, to -7: balmy
	Fla TRH died

RH:	Consistent waveforms but Balt. rose to show 100%,
		Sea/Atl in upper 90's.
		Good conditions for Freezing on domes.

4-Component Rad:
	Consistent looking waveforms  Max SWin ~430
	   Fla/Sea. Both domes on.  Fla after restarting with new
		battery accumulated less ice.
	   Atl, OK,
	   Sea  OK,  Interesting rpile signal ~9-14Z
	   BAL  OK

T/Gsoil:   Atl	Still in slush/ice around -2C, G at  ~ -.9 w/m**2 
	   Sea	~-7.5,  -G ~ -1 w/m**2
	   Bal. T ~ -7.2 rising to -6.6,  G dropping ~5-2.0 w/m**2
	   Fla	~-8.0, G ~1.3
		
LEVELS:	   Atl	x ~ -1.0, y ~.2
	   Sea	x ~.0, y ~ -.2
	   Bal	Reinstalled x~.4, y~-.3
	   Fla	x ~.5, y ~.4

COMPASS: OK, Consistent looking. ~2.5 deg variation over period.
	   Fla compass died with trh
	
MISCELLANEOUS: 

4/18 Freezing supercooled fog overnight

Atl Domes iced up, cleaned ~18Z or before

Florida: SWin with 30-ohm minco heater was completely clean in AM.
	All others iced over.
	For this case the aspirated heater under the outer dome worked 
	very well.
ETL domes: Had some dime-quarter sized ice on top

From 4/17/98 14Z through 4/18/98 14Z

WEATHER: - Temps varying around -15C
	4/17 overcast but reasonable visibility, Low winds
		NE to SE winds diminishing
		by evening freezing super cooled fog
	4/18 am overcast, calm, very foggy

BASE:	Up

STATIONS:  Atl:  Up,	2 PV
		TRH data gaps ~22:30-1Z
	   Balt: Up	2 PV
	   Seat: Up	2 PV
	   Fla:  Up	Swapped battery 4/17 19Z, back online
			2 PV, no trh, down ~4/16 15:30
		TRH data gap until ~19Z 4/17
		RH did not come back until ~3Z 4/18
		Appears to have iced up.

VOLT/CUR:  Atl 14.5, .8/1.1
	   Sea 13.5, .8/1.4
			Many heating cycles on sonic
	   Bal 13.2, Appears to be dropping...why? .8/1.3
	   Fla 12.5, Appears to be dropping and TEG also...why?
		1.7/1.7  Additional load with 2nd 4-comp heater.
			Several heating cycles on sonic

BOX TEMPS: All got very warm during period: outside temps high.
		May still not have enough ventillation.
	   Atl rose to 30-deg
	   Sea rose to 35-deg
	   Bal. rose to 29-deg
	   Fla  rose to 34-deg

SONICS: Mostly trash after freezing mist / super cooled fog
	ATI stations showing essentially no flag/sample problems
	Gill stations showing lots of hits during period.
	However:
	Bal:  ATI appears down: many glitches 16-19:30 Z
		Died ~7Z
	Atl:  Only 1 heat cycle/flag at about 19:30Z
		Discovered ice on V during service visit
	Sea:  Many heating cycles/spikes beginning 2Z, and esp 9Z,
	Fla:  Appears to have lots of glitching, heating cycles
		beginning roughly 9Z
	Wdir:
	Wspd:

PRES:	Consistent, fairly stable around 1010

T:	Consistent, slowly dropping over period from -8, to -11: balmy!

RH:	Consistent waveforms 92-100%
		Good conditions for Freezing on domes.

4-Component Rad:
	Consistent looking waveforms  Max SWin ~280
	By am 4/18 AKDT certainly most every dome was iced up.
	NOTE: Fla SWin with minco heater was the only dome that was
		examined in am that was clean, including ETL's
	   Atl  OK, data gap 22:30 - 0:30Z 4/18
	   Sea  OK,  rpilein unusual, indicating up to ~70w/m**2
		during ice event and between 14-22Z 4/17 up to 150
	   BAL  OK
	   Fla  Back up at ~19Z

T/Gsoil:   Atl	Still in slush/ice around -2C, G at  ~ -.9 w/m**2 
	   Sea	Interesting diurnal cycle ~-7.5 cycling to -5.5 and back,
		-G 0 cycling to -7 and back w/m**2
	   Bal. T ~ -6.6 rising to -6,  G dropping ~2.0 to .4 w/m**2
	   Fla	T ~-7.65, G ~.9 to .5
		
LEVELS:	   Atl	x ~ -1.0, y ~.2
	   Sea	x ~.0, y ~ -.2
	   Bal	Reinstalled x~.4, y~-.3
	   Fla	x ~.7, y ~.4

COMPASS:  Sea,Fla spiking around ice event, Atl once
	
MISCELLANEOUS: 

From 4/18/98 14Z through 4/19/98 14Z

WEATHER: - Temps varying around -15C
	4/18 overcast w/ so-so visibility, Low winds
		NE to SE shifting to N in am
	4/19 am overcast, calm, foggy

BASE:	Up

STATIONS:  Atl:  Up,	2 PV
	   Balt: Up	2 PV
	   Seat: Up	2 PV
	   Fla:  Up	2 PV,

VOLT/CUR:  Atl 14.5, .8/1.4
	   Sea 13.5, .7/1.4
			Many heating cycles on sonic
	   Bal 13.3, Appears to be dropping...why? .7/1.2 varying
			and not just w/sun but maybe diffuse light on PV.
	   Fla 13.0, Appears to be dropping and TEG also...why?
		1.7/1.7  Additional load with 2nd 4-comp heater.
			Some heating cycles on sonic.
			PV clearly helping during 'day' 

BOX TEMPS: All are warm during period: outside temps high.
		May still not have enough ventillation.
	   Atl  as high as 35, then down to 25
	   Sea  as high as 40, then down to 35-deg
	   Bal. down to 20-deg
	   Fla  as high as 40, then down to 30-deg

SONICS:	Bal:  ATI came back up ~21Z 4/18
	Atl:  OK: note discovered ice on V during service visit
	Sea:  Yuk, trash. Many heating cycles/spikes through entire period.
		Slowly getting better
	Fla:  Some ice glitching, heating cycles in beginning of period
	Wdir:
	Wspd:

PRES:	Consistent, fairly stable around 1011

T:	Consistent, Bal/Atl show sharp cool air passage in middle of period.
		Otherwise Temps slowly rising from -10.5 to -9

RH:	Consistent waveforms 92-93%, Fla still high by ~3%

4-Component Rad:
	Consistent looking waveforms  Max SWin ~330
	By am 4/18 AKDT certainly most every dome was iced up.
	NOTE: Fla SWin and SWout both with minco heaters had a little
		bit of ice on them.  ETL Eppley with high power vent/heat
		had somewhat more ice that Fla. system did.
		LW's were OK for both Fla/ETL
		LW were OK.
	   Atl  OK, Presumed iced a bit given inspection of Fla
	   Sea  OK, Presumed iced a bit given inspection of Fla
	   BAL  OK, Presumed iced a bit given inspection of Fla

T/Gsoil:   Atl	OK, Still in slush/ice around -2C, G at  ~ -.6 w/m**2 
	   Sea	Interesting diurnal cycle again ~-7.0 cycling to -5.0 and back,
		-G 0 cycling to -6 and back w/m**2
	   Bal. T ~ -6,  G varying ~2.0 to .8 w/m**2
	   Fla	T ~-7.3, G ~.45
		
LEVELS:	   Atl	x ~ -1.0, y ~.2
	   Sea	x ~.0, y ~ -.2
	   Bal	Reinstalled x~.4, y~-.3
	   Fla	x ~.7, y ~.4

COMPASS:  Sea,Fla spiking with Gill heater cycling.
	
MISCELLANEOUS: 

From 4/19/98 14Z through 4/20/98 14Z

WEATHER: - Temps varying around -14C
	4/19 overcast w/ so-so visibility, winds
		increasing substantially during period
		from ~4-5 to 8-9 m/s from N
	4/20 am overcast, strong NW winds

BASE:	Up

STATIONS:  Atl:  Up,	2 PV
	   Balt: Up	2 PV
	   Seat: Up	2 PV, 2 SW heaters
	   Fla:  Up	2 PV, 2 SW heaters

VOLT/CUR:  Atl 14.5, .8/1.4
	   Sea 13.0, .7/1.4
	   Bal 13.2, .8/1.2
	   Fla 14.5, 1.7/2.0 w/PV, trashed current readings when
			Added wind generator, quick charge on battery
			brining it right up within ~10 hours.


BOX TEMPS: All decreasing with cooling air and wind.
		May still not have enough ventillation.
	   Atl  from 25, down to 2
	   Sea  from 35, down to 8
	   Bal. cycling 15 to 5 and back
	   Fla  from 30, down to 11

SONICS:	Atl:  OK
	Sea:  Trashy looking w (though flags show 100 at start of period)
		until one heating cycles on sonic around 0Z
		during site visit (apparently the pampoll decided
		that was needed then).
		During 1st site visit, there was some rime on sonic
		transducers but unable to determine to what extend
		and unable to clean.  Winds cleaned it nicely later
		Note heating was almost constant yesterday.
	Bal:  OK
	Fla:  OK
	Wdir:	NE switching to NW
	Wspd:	4-5 rising to 8-9m/s and back to 5-6

PRES:	Consistent, drop from 1011 to 1008 and back during period. 

T:	Consistent, Temps slowly dropping from ~-8 to -16

RH:	Consistent waveforms 92-87%, Fla still high by ~3%

4-Component Rad:
	Consistent looking waveforms  Max SWin ~330
	NOTE:
	   Atl  OK,
	   Sea  OK, Down between ~00:30 - 4/19 4:30Z during installation
		of both SW dome heaters
	   BAL  OK,
	   Fla  OK,

T/Gsoil:   Atl	OK, Still in slush/ice around -2C, G at  ~ -.6 w/m**2 
	   Sea	Interesting diurnal cycle again ~-6.5 cycling to -5.1 and back to-7,
		-G 0 cycling to -6 and back up to 3 w/m**2
	   Bal. T ~ -5.7,  G varying ~.8 to 1.6 w/m**2
	   Fla	T ~-7.0, G ~.4

LEVELS:	   Atl	x ~ -1.2, y ~-.1,  appears that maybe we've had some settling
	   Sea	x ~.0, y ~ .5,  appears that maybe we've had some settling
	   Bal	x~.4, y~-.3
	   Fla	x ~.6, y ~.6

COMPASS:  All appear reasonable
	
MISCELLANEOUS: 

From 4/22/98 14Z through 4/23/98 14Z
(apparently two days previous not done - thought John did) 

WEATHER: - Temps -15 to -23C
	   some high clouds 
           good visibility

LEADS:     No open water observed

BASE:	Up

STATIONS:  Atl:  Up,	
	   Balt: Up	
	   Seat: Up	
	   Fla:  Up	

VOLT/CUR:  Atl OK 
	   Sea OK
	   Bal OK
	   Fla Voltage dropping toward end OK now

BOX TEMPS: All not too hot  drops in Sea and Bal due to opening

SONICS:	Atl:  OK
	Sea:  Two heater cycles, w seems too variable
	Bal:  OK
	Fla:  OK

PRES:	OK

T:	Consistent,OK

RH:     Look OK , some variations between stations

4-component Rad:  All OK except Fla SW out too high ~1800 - 2000 UTC
            
T/Gsoil:   All	OK,  Atl still in slush/ice around -2C, 
           

COMPASS:  All appear reasonable, some variation between stations
	
MISCELLANEOUS: No known lead activity.

NOTE from Peter: I have not provided details that John did. 
               I will mainly concentrating on things
               that cannot be known from looking at the data such as
               lead activity, open box times, polar bear munchings etc.
               Please let me know if you want more info included here.

From 4/23/98 14Z through 4/25/98 06z
(late report)

WEATHER: - Temps -15 to -23C
           Today and yesterday were beautiful, zero clouds, light winds	   

LEADS:     No open water observed

BASE:	Pampoll Stopped working last night.  Re-boot got it going.

ATL, SEA, BAL, FLA:
All ststions up and looking good, except some missng data from FLA that 
will need to get from flashcard.

No heater cycles - not needed no frost
	
NOTE:  See Jeff's reports on site visits

From 4/24/98 16Z through 4/20/98 16Z

WEATHER: Another beautiful day
         Light winds, no clouds, good visibility
         Temps -23 and rising

BASE:	Up

STATIONS:  Atl:  Up,	
	   Sea:  Missing data last three hours - Jeff re-started
           Bal:  Up	
	   Fla:  Up	

No w seen on ATL
Other data looks good	Added wind generator, quick charge on battery
			brining it right up within ~10 hours.

From 4/25/98 16Z through 4/26/98 16Z

WEATHER: Another nice day, high clouds, good visibility
         Temps -23 and rising

BASE:	Up

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up	
	   Fla:  Up	

All data looks clean and consistent,  no apparent frost problems

From 4/25/98 16Z through 4/26/98 16Z

WEATHER: Overcast, winds 7 m/s, limited visibility
        Temps -23 and rising

BASE:	Up

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up	
	   Fla:  Up	

All data looks clean and consistent,  no apparent frost problems

From 4/27/98 16Z through 4/28/98 16Z

WEATHER: Thin Overcast, winds 7 m/s, 
         Temps -19 


BASE:	Up

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up	
	   Fla:  Up	

LEADS:  One near runway, otherwias quite.

All data looks clean and consistent,  No major frost problems.
Atlanta had one sonic heating cycle.

From 4/28/98 16Z through 4/29/98 16Z

WEATHER: Overcast, winds 5 m/s, 
         Temps -19 


BASE:	Up

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up	
	   Fla:  Up	

Voltges:  OK except Seattle has strange noise, will check at 
site visit tommorrow.

LEADS:  One near runway, another new onw juat upwind of Atlanta


Data looks clean and consistent,  No major frost problems.

From 4/29/98 16Z through 4/30/98 16Z

WEATHER: Overcast, winds 5 m/s from W
         Temps -18


BASE:	Stopped at 1000 GMT. After re-start all lost data retreived.

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up	
	   Fla:  Up	

Voltges:  OK except Seattle still has strange noise, will check at 
site visit today 

LEADS:  Atlanta lead refrozen to at least 10 cm.
Very small lead or crack this side of Seattle.

Data looks clean and consistent,  A couple isolated spikes in
Fla data.  Frost appears minimal.

From 4/30/98 16Z through 5/1/98 16Z (previous log should be day later)

WEATHER: Clear, winds 5 m/s from S, increasing rapidly
         Temps -19


BASE:	Up 

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Down since 0330 5/1 GMT	
	   Fla:  Up	

VOLTAGES:  OK except Seattle battery readout still showing dropouts that 
are not real.

LEADS:  Atlanta lead apparently re-opened.

COMPASS: Atlanta has some spikes.

SONICS:  Atlanta had 5 heating cycles around 0000Z.  Lead effect?

COMMENTS:  Baltimore still visible from bridge.  Suspect polar bear 
damage.  Will try to visit today.

From 5/1/98 16Z through 5/2/98 16Z 

WEATHER: Variable cloudiness, winds 5 m/s from SSW
         Temps around -19


BASE:	Up 

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up
	   Fla:  Up	

VOLTAGES:  OK 

LEADS:  Atlanta lead frozen over.  No new ones.

SONICS:  Forgot to use modified Eve box for ATI and Baltimore and wrong
one in Florida after yesterday's swap.  So no sonic data from 
Florida and Baltimore since yesteday afternoon. Fixed later.
See site Visit_Logs

From 5/2/98 16Z through 5/3/98 16Z 

CURRENT WEATHER: Overcast, winds 2 m/s from W
         Temp  -19 C


BASE:	Up 

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up
	   Fla:  Up	

VOLTAGES:  OK 

LEADS:  Atlanta lead working a little. Very little if any open water.


COMMENTS:  All data clean and consistent. No sonic heating cycles.
Looking good!

From 5/3/98 16Z through 5/4/98 16Z 

CURRENT WEATHER: Overcast, winds 5 m/s from S
         Temp  -18 C


BASE:	Up 

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up
	   Fla:  Up	

VOLTAGES:  Seattle Battery voltage measurement dropping out.
           We are certain actual voltage is OK

LEADS:     Some new leads reported. Will proved details later.

COMMENTS:  All data clean and consistent. No sonic heating cycles.
           Looking good again!
 

5/8/98 1645 GMT

NOTE:  This is first daily log since SHEBOP failed.
       These comments are based on instantaneous checks using
       "eve_console" around the time above. 
 

CURRENT WEATHER: Overcast, winds 4 m/s from SSW
         Temp  -17 C


BASE:	Up 

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up
	   Fla:  Up	

VOLTAGES:  OK

DATA:  All looks OK except Seattle sonics u component not working.
       Will check today.

LEADS:     Lead opened between Atlanta and Floride on May 4.  It has closed now.

5/9/98 0000 - 1640  GMT

NOTE:  This is first daily log since SHEBOP failed.
       These comments are based on  looking at printed data
       using show_met, show_sonic, show_rad, show_heater, show_misc  
 

CURRENT WEATHER: Overcast, moderate snow, winds 5 m/s from NE
         Temp  -18 C


BASE:	pampoll up, SHEBOP down 

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up
	   Fla:  Up	

VOLTAGES:  OK

DATA:      All looks OK 

LEADS:     Unknown. No new activity reported.
 

5/10/98 0000 - 1640  GMT

NOTE:  This is first daily log since SHEBOP failed.
       These comments are based on  looking at printed data
       using show_met, show_sonic, show_rad, show_heater, show_misc  
       show_status
 

CURRENT WEATHER: Overcast, blowingsnow, winds 8 m/s from NE
         Temp  -11 C


BASE:	pampoll up, SHEBOP down 

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up
	   Fla:  Up	

VOLTAGES:  OK

DATA:      All looks OK 

LEADS:     No new activity.  Expect something to happen with these high winds.

5/10/98 1600 - 5/11/98  GMT

NOTE:  SHEBOP is up!  Hat's off to Jeff and Gordon for the speedy repair

CURRENT WEATHER: Light overcast, winds 4 m/s from NE
         Temp  -9 C


BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up
	   Fla:  Up	

VOLTAGES:  OK Seattle Battery noisy

DATA:      All looks OK 

LEADS:     No new activity.  Expect something to happen with these high winds.
 
This log was done late.  Baltimore communication failed todsy.  Will
try to visit tommorrow.

5/11/98 1600 - 5/12/98  GMT


CURRENT WEATHER: Overcast, winds 4 m/s from SW
         Temp  -9 C


BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Down
	   Fla:  Up	

VOLTAGES:  OK 

DATA:     Atl Sea FLa OK 

LEADS:     New lead opened parallel to port side of ship about 1 km away.`
           Goes about 40 West of Seattle but only about 2-3 m wide there.

5/12/98 1600 - 5/13/98 1600 GMT


CURRENT WEATHER:  Overcast, calm, temperature -6 C
        


BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Went down 1000 GMT, out of propane?
	   Fla:  Up	

VOLTAGES:  OK, except Baltimore dropped before going down
 
DATA:     Atl Sea FLa

LEADS:    

5/12/98 1600 - 5/13/98 1600 GMT


CURRENT WEATHER:  Overcast, windy, pressure continues rising,
		  temperature -9.3 C at 6:45 a.m. local      


BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up
	   Fla:  Up	

VOLTAGES:  OK, except Baltimore failed yesterday and Jeff jury rigged it.  So
		Baltimore voltages show done but station is running. 


DATA:     Atl Sea  Balt Fla OK

LEADS:    A narrow lead just 80 meters from the station prevented us from servicing Seattle yesterday evening.  No other activity in the immediate vicinity of the camp, but on the flight in on May 12 we crossed mile and miles of leads to the south.

5/13/98 1600 - 5/14/98 1600 GMT


CURRENT WEATHER:  (Morning of May 15) Overcast, windy, pressure continues
		  rising, temperature -9.3 C at 7 a.m. local      


BASE:	pampoll up but shaky, SHEBOP up 

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up
	   Fla:  Up

SONICS:	  The w component on Florida and Baltimore is not averaing zero.  Is
		this a leveling problem or a caibration problem?	

VOLTAGES:  OK, except Baltimore failed and Jeff jury rigged it 
		by bypassing the battery.  So Baltimore voltages show down
		but station is running. 


DATA:     Atl Sea  Balt Fla OK

LEADS:    No new leads, but lead east of Seattle (really, just a crack)
		continues to be active.

5/15/98 1600 - 5/16/98 1600 GMT


CURRENT WEATHER:  Windy (from the east), thin clouds,
		temperature -6.5 C at 7:35 a.m. local.  Drifting snow last
		evening.      

BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up,	
	   Sea:  Up
           Bal:  Up
	   Fla:  Up

SONICS:	  All OK, though w's at Baltimore and Florida continue to show averages
		that are not zero.  I checked the alignment of the sonic at
		Baltimore yesterday, and it was level to my eye.
		
RADIOMETERS:  Frost-free at Baltimore and Seattle yesterday and surely
		everywhere else.		

VOLTAGES:  OK, especially Baltimore, where we substituted the new battery box
		and adjusted the output of the wind generator yesterday.

DATA:     Atl, Sea, Balt, Fla OK

LEADS:    No new leads in the immediate vicinity.  The lead that was open near
		Baltimore on Wednesday is mostly closed.  The cracks east of
		Seattle are still active.  Dan and I crossed them on foot
		last evening to resupply the station with propane.  Notice,
		these cracks are east of Seattle and the winds have been
		easterly.
		
UPDATED SITE CONDITIONS:
	At Baltimore yesterday, I remeasured some of the station variables
	that I measured when we installed the station in October.
	Snow depth:  50 cm	(compared to about 5 cm in Oct)
	Ice thickness:  1.4 m	(compared to about 0.4 m in Oct)
	Height of sonic w:  2.34 m
	Height of T/RH intake:  1.43 m	
	Head-on direction for sonic:  61 degrees true (assumes 21 deg east
		declination)
	2.8 miles by snowmobile from the ship
	
COMMENTS:  With about 45 cm more snow at Baltimore and with the ATI sonic
	there rather than the Gill, the sonic anemometer is now about 1 meter
	nearer the surface than it was in the fall.  With a 15-cm path on that
	sonic, a height of 2.34 m is probably not enough to get all the 
	momentum and sensible heat flux by covariance techniques.  The rule of
	thumb I use is that the instrument height must be 20 time the path
	length.

5/16/98 1600 - 5/17/98 1600 GMT


CURRENT WEATHER:  Windy (from the east), thin clouds,
		temperature -7.5 C at 7:54 a.m. local time,
		pressure continues to rise, 1018.2 mb.
		
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

SONICS:	  All OK.

TSOIL:  Erratic behavior of Tsoil at Atlanta.  It's much more variable than
	at the other sites.

T/RH:	Erratic behavior of relative humidity sensor at Baltimore.  Values
	vary from 50 to 96%, while all the other sensors hover around 90%.
		
VOLTAGES:  OK

DATA:     Atl, Sea, Fla OK.  Data interruption at Baltimore at about
		1200 GMT on the 17th, reason unknown to this reporter

LEADS:    No new leads in the immediate vicinity.
		
UPDATED SITE CONDITIONS:
	At Seattle, I documented some of the station variables.
	This site is surrounded by newly broken ice but, according to the
	ice guys, is on a multiyear floe 2-2.5 m thick.
	Snow depth:  19 cm (which seems thin if the floe is multiyear)	
	Height of sonic w:  2.87 m
	Height of T/RH intake:  1.81 m	
	Head-on direction for sonic:  4 degrees true (assumes 22 deg east
		declination)
	1 mile by snowmobile from the ship

5/17/98 1600 - 5/18/98 1600 GMT


CURRENT WEATHER:  Moderate winds (from the east), cloudy,
		temperature -7.0 C at 7:45 a.m. local time,
		pressure high, 1024.8 mb.
		
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Down after a propane change last evening.

SONICS:	  All OK.  Cleared light rime from Florida yesterday morning (about
	1800 GMT), but the transducer faces were clear.  Wind and sun likely
	cleared other sites naturally, since the higher reaches of our main
	met tower became frost-free as the day progressed.
	
RADIOMETERS:  Also cleared light rime from up-looking pyranometer at Florida
	yesterday morning.  Radiometers agreed that at midday yesterday,
	solar flux was over 500 watts per square meter
	
TSOIL:  Erratic behavior of Tsoil at Atlanta.  It's much more variable than
	at the other sites.  Perhaps water is infiltrating the ice-snow
	interface.

T/RH:	Erratic behavior of relative humidity sensor continues at Baltimore.
	Values vary from 50 to 96%, while all the other sensors hover around
	90%.
		
VOLTAGES:  OK, except at Florida.

DATA:  Atl, Sea, Balt OK.  Florida not transmitting; unknown whether it's
	collecting.

LEADS:    No new leads in the immediate vicinity.
		
UPDATED SITE CONDITIONS:
	At Florida I documented some of the station variables.
	This is a picturesque site on multiyear ice that is reported to be
	roughly 2.5 m thick.  There is broken (i.e., rough) ice to the west
	and north and fairly smooth ice to the east; the camp starts 100 m to
	the south but has a fairly low profile now.
	Snow depth:  32 cm 	
	Height of sonic w:  3.42 m (Gill sonic)
	Height of T/RH intake:  1.88 m	
	Head-on direction for sonic:  7 degrees true (assumes 22 deg east
		declination)
	1/2 mile by snowmobile from the ship
	

5/18/98 1600 - 5/19/98 1600 GMT


CURRENT WEATHER:  Moderate winds (from the east), thin clouds,
		temperature -8.7 C at 8:02 a.m. local time,
		pressure high, 1032.2 mb.
		
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up.

SONICS:	  All OK. 

T/RH:	Erratic behavior of relative humidity sensor continues at Baltimore.
	Values vary from 50 to 96%, while all the other sensors hover around
	90%.
		
VOLTAGES:  OK, except Florida has been decreasing.  Is now at 12.5 volts.

DATA:  Atl, Fla, Sea, Balt OK. 

LEADS:  No new leads in the immediate vicinity.

5/19/98 1600 - 5/20/98 1600 GMT


CURRENT WEATHER:  Light winds, thin clouds, temperature -11.6 C at 7:55 a.m.
		 local time, pressure still rising, 1036.6 mb.
		
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up.

SONICS:	  All OK. 

RADIOMETERS:  Cleaned light frost off up-looking short-wave radiometer at
	Florida, also at main-camp instrument.  So other sites likely also
	had frost early that cleared naturally in the sun. 

T/RH:  Still errratic low-humidity spikes of duration, typically, one hour
	at Baltimore
		
VOLTAGES:  OK

DATA:  Atl, Fla, Sea, Balt OK. 

LEADS:  No new leads in the immediate vicinity.

5/20/98 1600 - 5/21/98 1600 GMT


CURRENT WEATHER:  Light winds; thick fog in last 10 hours;
		temperature -10.7 C at 7:25 a.m. local time;
		pressure high, 1035.7 mb.
		
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up.

SONICS:	  Spotty in last 10 hours, presumably riming.

RADIOMETERS:  No frost at Florida yesterday morning, though in-camp, up-looking
		pryanometer was lightly frosted.
		
VOLTAGES:  OK

DATA:  Atl, Fla, Sea, Balt OK. 

LEADS:  No new leads in the immediate vicinity.  But the crack enroute to
	Seattle remains active.  Couldn't reach Seattle yesterday because the
	floes had come back together and depressed the trail below sea level;
	it was flooded.	

5/21/98 between 1800 and 2300

	Vistited Florida, Seattle, and Atlanta to check radiometers and
sonics for rime, since riming had been moderate overnight at main tower.
Found no riming of the PAM radiometers.
	All the sonics were rimed, but only Florida seemed to be degraded by
that riming.  Cleared rime from all the sonics.

5/21/98 1600 - 5/22/98 1600 GMT


CURRENT WEATHER:  Light winds; a few high, thin clouds;
		temperature -8.5 C at 7:52 a.m. local time;
		pressure high, 1032.8 mb.
		
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

SONICS:	  All OK.  Some riming up to 2000 on May 21.  Cleared this from
	Florida, Seattle, and Atlanta.  Data missing from Atl and Sea for
	1600-1900 on the 21st because heaters there do not seem to be working.
	
RADIOMETERS:  No rime on Florida, Atlanta, and Seattle radiometers.
	

T/RH:	The erratic behavior of the relative humidity sensor at Baltimore
	seems to be diurnal.  For the few hours around solar noon, we see
	humidity periodically falling to about 50%, while it behaves
	well at other times.
 		
VOLTAGES:  OK

DATA:  All OK

LEADS:  No new leads in the immediate vicinity.
		
UPDATED SITE CONDITIONS:
	Here are updated site variables for Atlanta.
	This site is on multiyear ice.  There are many new ridges to the
	north and northeast, starting within 100 m of station.  The ice is
	fairly smooth in the other directions.
	Snow depth:  30 cm 	
	Height of sonic w:  2.22 m 
	Height of T/RH intake:  1.27 m	
	Head-on direction for sonic:  86 degrees true (assumes 22 deg east
		declination)
	1 1/4 mile by snowmobile from the ship

5/22/98 1600 - 5/23/98 1600 GMT


CURRENT WEATHER:  Light winds; clear skies;
		temperature -10.2 C at 7:30 a.m. local time;
		pressure high, 1032.1 mb.
		
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

SONICS:	  All OK. 
	
RADIOMETERS:  No rime on Florida on the morning of the 22nd (about 1800 GMT)
	although light rime on the main-camp instruments.  For the last few
	days, all the pyranometers have been consistently showing an incoming 
	shortwave flux around solar noon in excess of 600 W/m**2.  Really!
	The snow was wet enough late yesterday that I could make a good
	snowball.	

T/RH:	Still erratic behavior of the relative humidity sensor at Baltimore,
	although not as prevalent in the last 24 hours.
 		
VOLTAGES:  OK

DATA:  Atl, Sea, Fla OK.  Some weird glitches in the data from Baltimore between
	1600 and 2000 GMT on the 22nd.  Will investigate further.

LEADS:  No new leads in the immediate vicinity.

5/23/98 1600 - 5/24/98 1600 GMT


CURRENT WEATHER:  Moderate winds; clear skies;
		temperature -9.2 C at 7:44 a.m. local time;
		pressure high, 1031.8 mb.
		
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

SONICS:	  All OK. 
	
RADIOMETERS:  No rime on Florida on the morning of the 23nd (about 1800 GMT)
	although light rime on the main-camp instruments.
	
T/RH:	Still erratic behavior of the relative humidity sensor at Baltimore
	around solar noon.
 		
VOLTAGES:  OK

DATA:  Atl, Balt, Sea, Fla all OK. 

LEADS:  No new leads in the immediate vicinity.

5/24/98 1600 - 5/25/98 1600 GMT


CURRENT WEATHER:  Moderate winds; clear skies;
		temperature -7.6 C at 7:50 a.m. local time;
		pressure high, 1030.1 mb.
		
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

SONICS:	  All OK. 
	
RADIOMETERS:  No riming overnight on the 24th.

T/RH:	Still erratic behavior of the relative humidity sensor at Baltimore
	around solar noon.
 		
VOLTAGES:  OK

DATA:  Atl, Balt, Sea, Fla all OK. 

LEADS:  No new leads in the immediate vicinity.

5/25/98 1600 - 5/26/98 1600 GMT


CURRENT WEATHER:  Moderate winds; clear skies;
		temperature -6.2 C at 7:45 a.m. local time;
		pressure 1023.6 mb.  (We did have an episode of clouds
		yesterday between about 1930 GMT on the 25th and 0600 on the
		26th, the first significant clouds in, maybe, five days.)
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

SONICS:	  All OK. 
	
RADIOMETERS:  OK

T/RH:	Swapped T/RH and compass at Baltimore.  Relative humidity now seems
	OK, and we did not goof up the temperatures or compass in the switch.
	All the stations reported temperatures above 0 deg C for an hour or so
	yesterday afternoon (roughly 2300 GMT on the 25 to 0000 on the 26th).
 		
VOLTAGES:  OK

DATA:  Atl, Balt, Sea, Fla all OK. 

LEADS:  No new leads in the immediate vicinity.  And the 2.8-mile snowmobile
	trail to Baltimore was surprisingly intact.

5/26/98 1600 - 5/27/98 1600 GMT


CURRENT WEATHER:  Moderate winds; overcast with recent freezing rain;
		temperature -3.8 deg C; the bottom has fallen out of the
		pressure, 1007.4 mb
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

SONICS:	  All OK.  Heaters on in last 4 hours at Sea and Balt; not at
	Atl or Fla.
	
RADIOMETERS:  OK

T/RH:	T/RH at Baltimore now agrees with other stations and shows none of
	the dropouts.  We considered the exposure problem there, but the only
	real difference is the height above the snow.  It`s closer than at
	Seattle and Florida but not as close as Atlanta's T/RH.
 		
VOLTAGES:  OK.  Box temperature at Florida about 5 deg C.

DATA:  Atl, Balt, Sea, Fla all OK. 

LEADS:  No new leads in the immediate vicinity, but the lead 100 m north of
	Atlanta is still somewhat active.  We visited Atlanta yesterday and
	saw ridging of the new ice in the lead and some water (or newly
	frozen ice) standing on the surface.  From the bridge this morning,
	I could see open water around the border of the floe, about 1-2 miles
	away, to the west, north, and east.

5/27/98 1600 - 5/28/98 1600 GMT


CURRENT WEATHER:  Light winds; overcast; temperature -1.7 deg C at 7:14 am;
		pressure, 1011.3 mb
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

SONICS:	  All OK.  
	
RADIOMETERS:  OK

T/RH:  OK.  Another episode of above 0 temperatures yesterday afternoon.
 
TSOIL:  Seattle showing temperature at snow-ice interface above 0 for last
	24 hours, maxing out at over +4 deg C.  (Impossible, of course.)
 		
VOLTAGES:  OK.

DATA:  Atl, Balt, Sea, Fla all OK. 

LEADS:  No new leads in the immediate vicinity, but the region around Seattle
	is still active.  We crossed a couple new cracks yesterday, inches
	wide.  From the bridge this morning, I could still see open water
	around the border of the floe, about 1-2 miles away, to the west, north,
	and east.

5/28/98 1600 - 5/29/98 1600 GMT


CURRENT WEATHER:  Light winds; overcast; drizzle;
		temperature +0.2 deg C at 8:00 am; pressure, 1003.8 mb.  Serious
		melting, the snow is slushy.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

SONICS:	  All OK.  Episodes of heating at all but Florida; but Florida didn`t
	seem to need heating
	
RADIOMETERS:  OK.  Water on the up-looking domes much of the last 24 hours.
	The ice guys cleaned Baltimore at 1914 GMT; Dave cleaned Florida at
	roughly the same time.

T/RH:  OK.  Temperatures hovering around zero the last 24 hours.  
 
VOLTAGES:  OK.

DATA:  Atl, Balt, Sea, Fla all OK. 

CURIOSITIES:  Spikes in several of the Baltimore signals at about 0400 GMT on
	the 28th.

LEADS:  No new leads in the immediate vicinity.

5/29/98 1600 - 5/30/98 1600 GMT


CURRENT WEATHER:  Moderate winds; overcast; snow flurries now but occasional
		drizzle last 24 hours; temperature -1.1 deg C at 7.55 am;
		pressure 1012.1 mb. 
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

DATA:  No data from any station after 0200-0300 GMT on the 29th.
	Dave is checking

SONICS:	 Only Florida reporting fairly continuously before the data stopped.
	Others were heating, evidently because of water on the sensors.
	
RADIOMETERS:  OK.  Water on the up-looking domes much of the last 24 hours.

T/RH:  OK.  Temperatures hovering around zero; relative humidity 98% and
	greater.  
 
VOLTAGES:  OK.

LEADS:  Dave and I made it to Seattle yesterday morning on a thread of a bridge.
	Yesterday evening that Seattle lead had reopened again.  It's about
	150 m south of Seattle, a few meters wide, and was impassible this
	morning (to check out Seattle, the polar bear this morning had to
	swim it).  There is also a larger lead system north of Seattle, maybe
	300 m, that extends east all the way beyond Atlanta.  There also seems
	to be new open water west of Baltimore.

	I've reported PAM site variables occasionally in some of the daily
status reports.  I thought it might be useful to summarize all those variables
in one table.  The date noted refers to the time of the compass readings for
sonic heading and bearing from ship.

________________________________________________________________________________
			Atlanta		Baltimore	Florida		Seattle
________________________________________________________________________________

Date			5/21/98		5/15		5/16		5/16

Bearing from ship 	84		166		9		356
(deg true)

Snow Depth (m)		0.30		0.50		0.32		0.19

Ice thickness (m)	1.9		1.4		3.0		1.9

Sonic type		ATI		ATI		Gill		ATI

Sonic head-on angle	86		66		7		13
(deg true)

Angle of sled from	-78		-115		-104		-36
head-on to sonic (deg)

Height of sonic w (m)	2.22		2.34		3.42		2.87

Height of T/RH intake	1.27		1.43		1.88		1.81
(m)

Approx. distance from	1.6		4.5		0.5		0.9
ship (km)
________________________________________________________________________________

	The "Angle of sled" is the sector disturbed by the PAM sled in sonic
coordinates.

SITE CHARACTERISTICS

ATLANTA:  Multiyear ice; rough north and northeast starting with refrozen lead
	100 m north of the station.
	
BALTIMORE:  First-year ice; was a big lead last fall; refrozen lead and rougher
	ice southeast; fairly smooth elsewhere.
	
FLORIDA:  Multiyear floe; major ridge 200 m west; refrozen lead and ridging
	200 m north; very smooth east; camp 100-500 m south, though low profile
	for nearest 200 m.
	
SEATTLE:  As if in a fortress; rimmed 100-200 m in all directions with ridges
	(good spot for a bear ambush); active lead about 400 m north; many local
	cracks inches to meters wide.

5/30/98 1600 - 5/31/98 1600 GMT


CURRENT WEATHER:   Breeze; overcast; snow flurries; temperature -0.9 deg C
		at 8:00 am; pressure 1015.6 mb.  Snow soft and mushy
		yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

DATA:  No data from Baltimore in last 36 hours; others OK.

SONICS:	 Generally good.
	
RADIOMETERS:  OK.  Radiometer arm at Florida is drooping as the snow melts;
	level sensor shows this change, and it`s obvious visually.  We'll
	have to deal with it soon.

T/RH:  OK. 
 
VOLTAGES:  OK.

LEADS:  Leads at edge of floe 1-3 miles away in all directions but southeast.
	Atlanta lead still active.  We visited yesterday and saw rafted new
	ice and some open water again.

5/31/98 1600 - 6/1/98 1600 GMT


CURRENT WEATHER:   light winds, overcast; fog; temperature -1.5 deg C
		at 7:50 am; pressure 1018.8 mb.  Snow soft 
		yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

DATA:  No data from Baltimore in last 60 hours; gaps in Florida;
has not reported since 8GMT today, others OK.

SONICS:	 Generally good.
	
RADIOMETERS:  The level of the radiometers were adjusted at Florida
by raising the legs on the radiometers boom.

T/RH:  OK. 
 
VOLTAGES:  OK.

LEADS:  Leads at edge of floe 1-3 miles away in all directions but southeast.
	The Seattle lead is actually closing and ridging and new leads were
	observed from the bridge in the vicinity of Baltimore

5/31/98 1600 - 6/2/98 1610 GMT


CURRENT WEATHER:   light winds,  some patchy fog but genreally clear,
                temperature -2 deg C
		at 7:40 am; pressure 1020.7 mb.  Snow soft 
		yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

DATA:  No data from Baltimore in last 84 hours; gaps in Florida;
has not reported since 9GMT today (radiometers bad since 5GMT), others OK.

SONICS:	 Generally good.
	
RADIOMETERS:  The level of the radiometers were adjusted at Florida
by raising the legs on the radiometers boom.The level at Florida seems to 
drift regurally.

T/RH:  OK. 
 
VOLTAGES:  OK.

LEADS:  Leads at edge of floe 1-3 miles away in all directions but southeast.
	New leads were observed from the bridge in the vicinity of Baltimore.

6/2/98 1700 - 6/3/98 1700 GMT


CURRENT WEATHER:   light winds,  foggy,
                temperature -0.5 deg C
		at 8:00 am local time; pressure 1021.6 mb.  Snow soft 
		yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

DATA:  No data from Baltimore in last 108 hours; gaps in Florida;
has not reported since 1330GMT today (radiometers bad since 5GMT),
others OK.

SONICS:	 Generally good, heaters went up 3times.
	
RADIOMETERS:  The level at Florida seems to 
drift regularly.(1->3deg)

T/RH:  OK. 
 
VOLTAGES:  battery voltage slowly going down at
           Florida (12.3 ->11.5 V)OK. Tbox stabilized.

LEADS:  Leads at edge of floe 1-3 miles away in all directions but southeast.

6/3/98 1600 - 6/4/98 1600 GMT


CURRENT WEATHER:   light SSE winds,  some fog,
                temperature 0 deg C
		at 7:40 am local time; pressure 1021.6 mb.  Snow soft 
		yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

DATA:  No data from Baltimore in last 132 hours; gaps in Florida;
restarted by itself 2400GMT today (radiometers bad since 1000GMT),
others OK.

SONICS:	 Generally good, heaters went up 1time.
	
RADIOMETERS:  The level at Florida seems to 
drift regularly.

T/RH:  OK. 
 
VOLTAGES: 11.5 at Florida and Tbox stabilized.

LEADS:  Leads at edge of floe 1-3 miles away in all directions but southeast.
Leads to the N and NW keep widening.

6/4/98 1600 - 6/5/98 1600 GMT


CURRENT WEATHER: SW winds 5m/s,  very foggy,
                temperature -1C
		at 7:40 am local time; pressure 1010.6 mb.  Snow soft 
		yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

DATA: Baltimore started to send data but stopped at 05GMT, data looked good
      some peaks in sonic data (precipitation?);
      Florida stopped at the same time, radiometer data still bad;
      Atlanta was off between 1730-0230GMT, goes well since (some peaks in
      the sonic data)
      Seattle is OK

SONICS:	 some peaks in the time series but it was snowing
	
RADIOMETERS: Florida is really not levelled anymore. We need to change its
             location by a few feet

T/RH:  OK. 
 
VOLTAGES: 11.5 at Florida and Tbox stabilized.

LEADS:  Leads at edge of florida 1-3 miles away in all directions but southeast.

6/5/98 1600 - 6/6/98 1600 GMT


CURRENT WEATHER: SW winds 1m/s, cloudy but clear,
                temperature 0C
		at 7:40 am local time; pressure 1012.5 mb.  Snow soft 
		yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK (some communication problems with pampoll)
      Florida started to transmit at 2030GMT and stopped at 7GMT, radiometer dat      a still bad. We moved the tripod yesterday==>uncorrect level+compass;
      Atlanta OK, was hit by a bear yesterday
      Seattle OK. A new lead opened yesterday just next to the SW of it

SONICS:	OK
	
RADIOMETERS: radiometers at Florida are still measuring very noisy and stopped
      90 minutes before the rest of the station

T/RH:  OK. 
 
VOLTAGES: low power and charge at Florida and Tbox stabilized.

LEADS:  Leads at edge of florida 1-3 miles away in all directions but southeast.
        New lead at Seattle (see DATA)

6/6/98 1600 - 6/7/98 1600 GMT


CURRENT WEATHER: SW winds 7m/s, cloudy but clear,
                temperature 0C
		at 7:45 am local time; pressure 1004.0 mb.  Snow frozen 
		and becoming soft later yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK (small gaps)
      Florida and Seattle stopped to transmit between 1100 and 1215GMT,
      radiometer data bad at Florida since 1215GMT.
      Atlanta stopped transmitting between 2100 - 0900GMT
      Seattle OK.

SONICS:	OK few peaks because of precip
	
RADIOMETERS: radiometers at Florida stopped to measure OK at 1215GMT

T/RH:  OK. 
 
VOLTAGES: low power and charge at Florida 

LEADS:  No major change

6/7/98 1600 - 6/8/98 1600 GMT


CURRENT WEATHER: W winds 4m/s, cloudy but clear,
                temperature -3C
		at 7:50 am local time; pressure 1010.8 mb.  Snow frozen 
		and becoming soft later yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  Up
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK
      CR10x data bad at Florida intermittently.
      Atlanta is OK
      Seattle is OK, needs to be levelled (y)

SONICS:	fluctuating w at Florida
	
RADIOMETERS: OK except at Florida

T/RH:  OK. 
 
VOLTAGES: low power and charge at Florida, but stable 

LEADS:  No major change

6/8/98 1600 - 6/9/98 1600 GMT


CURRENT WEATHER: W winds 3m/s, cloudy but clear,
                temperature -2C
		at 7:15 am local time; pressure 1007.8 mb.  Snow frozen 
		and becoming soft later yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  down
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK since we switched radiometers heater and van off.
      Atlanta stopped tranmitting 2100 - 1100 GMT
      Seattle was moved away yesterday, see log

SONICS:	fluctuating w at Florida
	
RADIOMETERS: OK

T/RH:  OK. 
 
VOLTAGES: low power and charge at Florida, but stable 

LEADS:  Increase of activity W of the ship

6/9/98 1600 - 6/10/98 1600 GMT


CURRENT WEATHER: W winds 5m/s, nice and clear,
                temperature -4C
		at 7:30 am local time; pressure 1007.8 mb.  Snow frozen 
		and becoming soft later yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Sea:  down
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK.
      Atlanta is OK
      Seattle is OFF

SONICS:	OK
	
RADIOMETERS: OK

T/RH:  OK. 
 
VOLTAGES: low power and charge at Florida, but stable 

LEADS:  No change

6/10/98 1600 - 6/11/98 1600 GMT


CURRENT WEATHER: SW winds 2m/s, cloudy but clear,
                temperature -4C
		at 7:35 am local time; pressure 1012.6 mb.  Snow frozen 
		and becoming soft later yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK
      Atlanta is OK
      Maui is OK

SONICS:	OK
	
RADIOMETERS: OK

T/RH:  OK. 
 
VOLTAGES: OK 

LEADS:  No change

6/11/98 1600 - 6/12/98 1600 GMT


CURRENT WEATHER: SE winds 5m/s, partially cloudy but clear,
                temperature -3C
		at 7:45 am local time; pressure 1018.5 mb.  Snow frozen 
		and becoming soft later yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK
      Atlanta is OK
      Maui is OK

SONICS:	OK
	
RADIOMETERS: OK High incoming shortwave radiation seen yesterday at Florida
       seems to be OK today

T/RH:  OK. 
 
VOLTAGES: OK Atlanta is slowy losing power (0.1 A/day)

LEADS:  No change

6/12/98 1600 - 6/13/98 1600 GMT


CURRENT WEATHER: SE winds 7m/s, partially cloudy but clear,
                temperature -2C
		at 7:55 am local time; pressure 1022.3 mb.  Snow frozen 
		and becoming soft later yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK
      Atlanta is OK
      Maui is OK

SONICS:	OK
	
RADIOMETERS: OK

T/RH:  OK. 
 
VOLTAGES: OK Atlanta is slowy losing power (0.1 A/day)

LEADS:  Small activity to the NW of the ship

6/13/98 1600 - 6/14/98 1600 GMT


CURRENT WEATHER: E winds 7m/s, clear, good visibility
                temperature -3C
		at 8:55 am local time; pressure 1027.0 mb.  Snow slightly
                frozen  and becoming very soft later yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK
      Atlanta is OK
      Maui is OK

SONICS:	OK
	
RADIOMETERS: OK

T/RH:  OK. 
 
VOLTAGES: OK Atlanta is always slowy losing power (0.1 A/day)

LEADS:  melt ponds start to appear around the ship

6/14/98 1600 - 6/15/98 1600 GMT


CURRENT WEATHER: SE winds 6m/s, clear, good visibility
                temperature -4C
		at 8:40 am local time; pressure 1028.3 mb.  Snow slightly
                frozen  and becoming very soft later yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK
      Atlanta is OK
      Maui is OK

SONICS:	OK
	
RADIOMETERS: OK.

T/RH:  OK. 
 
VOLTAGES: OK Atlanta seems to do better.

LEADS:  melt ponds start to appear around the ship and near Florida.

6/15/98 1600 - 6/16/98 1600 GMT


CURRENT WEATHER:E winds 7m/s, cloudy, good visibility
                temperature -2C
		at 8:45 am local time; pressure 1024.0 mb.  Snow slightly
                frozen  and becoming very soft later yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK
      Florida stopped communicating at 0700GMT
      Atlanta is OK
      Maui is OK

SONICS:	OK
	
RADIOMETERS: OK.

T/RH:  OK. 
 
VOLTAGES: iload and icharge jumped from .2 to ~4.5A just before Florida died.
          Baltimore's iload seems to slowly decrease

LEADS:  no particular change

6/16/98 1600 - 6/17/98 1600 GMT


CURRENT WEATHER:SE winds 9m/s, cloudy, good visibility
                temperature -0C
		at 8:50 am local time; pressure 1022.4 mb. Snow
                slightly frozen in the morning and becoming 
                very wet yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK
      Atlanta is OK
      Maui is OK

SONICS:	OK
	
RADIOMETERS: OK.

T/RH:  OK. 
 
VOLTAGES: OK

LEADS:  Melt ponds appear everywhere, especially near Maui

6/17/98 1600 - 6/18/98 1600 GMT


CURRENT WEATHER:SE winds 9m/s, cloudy, good visibility
                temperature -2C
		at 8:50 am local time; pressure 1021.1 mb.  Snow
                very wet yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Moved the sled up by putting blocks underneath (lot of water).
                 Climbed to the tripod to check Ts ==> levels slightly changed
                 Drained the hole, it worked a little bit
	   Mau:  Up
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK
      Atlanta is OK
      Maui is OK

SONICS:	OK
	
RADIOMETERS: OK.

T/RH:  OK. 
 
VOLTAGES: OK

LEADS:  Little lead activity to the N. 

6/18/98 1600 - 6/19/98 1600 GMT


CURRENT WEATHER:SE winds 7m/s, cloudy, good visibility
                temperature -2C
		at 7:50 am local time; pressure 1015.0 mb.  Snow
                very wet yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up - visited by helicoptere yesterday (Dave Costa)
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK
      Atlanta is OK
      Maui is OK
      All stations stopped communicating since 1145GMT

SONICS:	OK
	
RADIOMETERS: OK.

T/RH:  OK. 
 
VOLTAGES: OK

LEADS:  No new activity.

WATER PONDS: still increasing.

6/19/98 1600 - 6/20/98 1600 GMT


CURRENT WEATHER:No wind, cloudy, poor visibility, light snow/rain
                temperature -0C
		at 8:15 am local time; pressure 1008.5 mb.  Snow
                very wet yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up
           Fla:  Up

DATA: Baltimore is OK
      Florida was on and off communicating with ship
      Atlanta is OK
      Maui is OK

SONICS:	OK
	
RADIOMETERS: OK. Probably water or ice on Maui's uplooking pyrgeometer.
             all sensors may have been wet (drizzle)

T/RH:  OK. 
 
VOLTAGES: OK iload slowly decreasing at Maui

LEADS:  Extension of the leads to the North of Maui

WATER PONDS: still increasing.

6/20/98 1600 - 6/21/98 1600 GMT


CURRENT WEATHER:E winds 10m/s, cloudy with patch of fogs.
                temperature -1C
		at 10:00 am local time; pressure 1011.9 mb.  Snow
                very wet yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up. A hole was drilled and water was down 3 inches when
                 they left with the helicopter.
           Fla:  Up put a new config.dat file on eve (see log)

DATA: Baltimore is OK
      Florida is OK
      Atlanta is OK
      Maui is OK

SONICS:	OK Tc is different since the config.dat switch. It seems that it
        was looking more like the other ones before the switch!
	
RADIOMETERS: OK. 

T/RH:  OK. 
 
VOLTAGES: OK

LEADS: no changes

WATER PONDS: stable, maybe a slight increase

6/21/98 1600 - 6/22/98 1600 GMT


CURRENT WEATHER:E winds 10m/s, partly cloudy, but excellent visibility.
                temperature 0C
		at 07:30 am local time; pressure 1018.7 mb.  Snow
                very wet yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up.
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK
      Atlanta is OK
      Maui is OK

SONICS:	OK 
	
RADIOMETERS: OK. 

T/RH:  OK. 
 
VOLTAGES: OK

LEADS: no changes

WATER PONDS: stable, maybe a slight increase, especially
             between Florida and the met tower.

6/22/98 1600 - 6/23/98 1600 GMT


CURRENT WEATHER:E winds 8m/s, sunny and clear, excellent visibility.
                temperature 0C
		at 07:50 am local time; pressure 1024.3 mb.  Snow
                very wet yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up.
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK.Level is above by 1deg. Shadow of the ship is now passing
      over the radiometers (as over those from Metropolis) at about 0330GMT. 
      Atlanta is OK
      Maui is OK. XLevel jumped 2deg at 0130GMT

SONICS:	OK 
	
RADIOMETERS: OK. 

T/RH:  OK. 
 
VOLTAGES: OK

LEADS: no changes

WATER PONDS: stable, drained around the met hut and between Met hut and Florida

6/23/98 1600 - 6/24/98 1600 GMT


CURRENT WEATHER:N winds 3m/s, sunny and clear, excellent visibility.
                temperature -0.5C
		at 07:45 am local time; pressure 1022.0 mb.  Snow
                wet yesterday.
				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up.
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK. Level above 1.
      Atlanta is OK
      Maui is OK. Automatic Ylevel is bad

SONICS:	OK 
	
RADIOMETERS: OK. 

T/RH:  OK. 
 
VOLTAGES: OK. Iload decreasing at Atlanta

LEADS: no changes

WATER PONDS: stable. Still a lot of snow melting.

6/24/98 1600 - 6/25/98 1600 GMT


CURRENT WEATHER:N winds 1m/s, partially cloudy, good visibility.
                temperature -1.5C
		at 07:45 am local time; pressure 1016.0 mb.  				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up.
           Fla:  Up

DATA: Baltimore is OK
      Florida is OK.
      Atlanta is OK
      Maui is OK. Automatic Ylevel is bad

SONICS:	OK mean w may be too high (.2 m/s)
	
RADIOMETERS: OK. 

T/RH:  OK. 
 
VOLTAGES: OK. 

LEADS: no changes

WATER PONDS: partially drained

6/25/98 1600 - 6/26/98 1600 GMT


CURRENT WEATHER:SW winds 1m/s, partially cloudy, good visibility.
                temperature -2C
		at 07:50 am local time; pressure 1013.8 mb.  				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up.
           Fla:  Up

DATA: Baltimore is OK. Tbox high (45C)
      Florida is OK. 
      Atlanta is OK. 
      Maui is OK. Ylevel is bad

SONICS:	OK
	
RADIOMETERS: OK. 

T/RH:  OK. 
 
VOLTAGES: OK. 

LEADS: no changes

WATER PONDS: no changes

6/26/98 1600 - 6/27/98 1600 GMT


CURRENT WEATHER:E winds 7m/s, cloudy, good visibility.
                temperature -2C
		at 08:00 am local time; pressure 1013.9 mb.  				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up.
           Fla:  Up

DATA: Baltimore is OK.
      Florida is OK. 
      Atlanta is OK. 
      Maui is OK.

SONICS:	OK
	
RADIOMETERS: OK. 

T/RH:  OK. 
 
VOLTAGES: OK. 

LEADS: no changes

WATER PONDS: no changes

6/27/98 1600 - 6/28/98 1600 GMT


CURRENT WEATHER:E winds 5m/s, foggy.
                temperature -0C
		at 09:15 am local time; pressure 1007.7 mb.  				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up.
           Fla:  Up

DATA: Baltimore is OK.
      Florida is OK. 
      Atlanta is OK. 
      Maui is OK.Ylevel > 1.0

SONICS:	OK
	
RADIOMETERS: OK. Strange incoming longwave raditaion at Maui (Rime?)

T/RH:  OK. 
 
VOLTAGES: OK. Slow decrease in iload in Florida

LEADS: no changes

WATER PONDS: no changes

6/28/98 1600 - 6/29/98 1600 GMT


CURRENT WEATHER:S winds 2m/s, cloudy (stratus).
                temperature -0C
		at 07:50 am local time; pressure 1011.4 mb.  				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up.
           Fla:  Up

DATA: Baltimore is OK.
      Florida is OK. 
      Atlanta is OK.Noisy compass data as soon as sonic heater ON 
      Maui is OK. Noisy compass data as soon as sonic heater ON

SONICS:	OK
	
RADIOMETERS: OK.

T/RH:  OK. 
 
VOLTAGES: OK. 

LEADS: no changes

WATER PONDS: slight increase around ship.

6/29/98 1600 - 6/30/98 1600 GMT


CURRENT WEATHER:S winds 5m/s, clear with very fews cumulus.
                temperature -1C
		at 07:50 am local time; pressure 1015.0 mb.  				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up.
           Fla:  Up

DATA: Baltimore is OK.
      Florida is OK. 
      Atlanta is OK.
      Maui is OK.

SONICS:	OK
	
RADIOMETERS: OK.

T/RH:  OK. 
 
VOLTAGES: OK. 

LEADS: no changes

WATER PONDS: slight increase around ship.

The electronic levels were calibrated with the bubble level on 
June 27 & 29, 1998.

at a level bubble

station		  x       y
1 Atl		-0.90	 0.22
2 Mau		-0.15	 0.86
3 Bal		 0.23	-0.10
4 Fla		 0.27	 0.04

Fla needs to be rechecked when the "frozen" leveling screw is freed.  We suggest
that these be the new zero values when checking the electronic x & y data in 
iplot() or from eve_console.

sheba

6/30/98 1600 - 7/01/98 1600 GMT


CURRENT WEATHER:S winds 15m/s, foggy.
                temperature +1C
		at 08:10 am local time; pressure 1011.6 mb.  				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up.
           Fla:  Up

DATA: Baltimore is OK.
      Florida is OK. 
      Atlanta is OK.
      Maui is OK.

SONICS:	OK
	
RADIOMETERS: OK.

T/RH:  OK. 
 
VOLTAGES: OK. 

LEADS: slight increase to the North (old Seattle)

WATER PONDS: slight increase around ship.

7/01/98 1600 - 7/02/98 1600 GMT


CURRENT WEATHER:NW winds 1m/s, foggy.
                temperature +0C
		at 08:00 am local time; pressure 1010.9 mb.  				
BASE:	pampoll up, SHEBOP up 

STATIONS:  Atl:  Up
	   Mau:  Up
           Bal:  Up.
           Fla:  Up

DATA: Baltimore is OK.
      Florida is OK. 
      Atlanta is OK. Atlanta stopped transmitting at 1930GMT
      Maui is OK.

SONICS:	OK
	
RADIOMETERS: OK.

T/RH:  OK. 
 
VOLTAGES: OK. 

LEADS: No change.

WATER PONDS: slight increase around ship.

7/02/98 1600 - 7/03/98 1600 GMT


CURRENT WEATHER:E winds 2m/s, overcast, good visibility
                temperature -1C
		at 08:00 am local time; pressure 1009.4 mb.  				
BASE:	pampoll working but data not getting through.  Pampoll rebooted.  All sites now reporting, including Atlanta. Unknown what caused Atlanta to stop reporting on July 2 and the rest at 0800 GMT July 3.  SHEBOP up 

STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: FLA,Maui,Bal stopped reporting at 08 UTC Jul 3 - need to
      reboot pampoll
      Baltimore is OK.
      Florida is OK. 
      Atlanta stopped transmitting at 1930GMT July 1
      Maui is OK.
      Update: All data is OK - including Atlanta - missing data from Atl recovered
      Load at Atlanta oscillating just before it stopped on July 2, but looks fine now.

SONICS:	OK
	
RADIOMETERS: OK.

T/RH:  OK. 
 
VOLTAGES: OK. 

LEADS: No change.

WATER PONDS: very slight increase around ship.

7/03/98 1600 - 7/04/98 1600 GMT


CURRENT WEATHER:SW winds 3m/s, overcast, fog, 0.25 mi visibility
                temperature -1C
		at 08:00 am local time; pressure 1002.3 mb.  				
BASE:	pampoll working.  SHEBOP up 

STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK.
      Florida is OK. 
      Atlanta is OK
      Maui is OK.

SONICS:	Atl heaters cycling in last 6 hrs.  All OK.
	
RADIOMETERS: OK.

T/RH:  OK.

LEVELS, COMPASS:  Maui & Fla need to be releveled. 
 
VOLTAGES: Atl teg volt. > 15 V prior to 2300 AKDT, then oscillating between 13-14 volts.  Atl bat volt 13-14 volt, with oscillations during last 7 hrs. Atl load 1.2 A increasing slowly.
Maui: teg: 13.5-14.5 v; bat:13-14 v
Bal: teg: 13-14 V; bat: 13-14 V
Fla:  teg:13.3-14.2 V;  bat:13-13.9 V  

LEADS: No change.

WATER PONDS: No change around ship.

7/05/98 1600 - 7/06/98 1600 GMT


CURRENT WEATHER:WNW winds 4m/s, light fog, 1 mi visibility
                temperature -1.5C
		at 08:00 am local time; pressure 1013.0 mb.  				
BASE:	pampoll working.  SHEBOP up 

STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK, except Tsoil of doubtful value.
      Florida is OK. Tsoil & Gsoil reading something useful as of 0400 UTC. 
      Atlanta is OK
      Maui is OK, except Tsoil of doubtful value.

SONICS:	Atl, Maui, Bal heaters cycling up to 00 UTC because of steady rainfall. 
Atl sample rate undefined until 0100 UTC. Wind data looks good except for spikes
at Maui and Atl at 2300 UTC.
	
RADIOMETERS: OK.

T/RH:  OK.

LEVELS, COMPASS:  Maui needs to be leveled.  Fla better now. 
 
VOLTAGES: 
Atl:  teg volt. > 15 V; bat: 14-14.5 V
Maui: teg: >15 v; bat:13.5-14.5 v
Bal: teg: >15 V; bat: 14-14.5 V
Fla:  teg:13-14.5 V;  bat:13-14 V  

LEADS: No change.

WATER PONDS: Sizes increased, but ice on them this morning.

7/07/98 1600 - 7/08/98 1600 GMT


CURRENT WEATHER:WSW winds 6m/s, partly cloudy, excellent visibility
                temperature 0 C at 08:00 am local time; pressure 1018.3 mb.  				
BASE:	pampoll working.  SHEBOP up 

STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK, except Tsoil of doubtful value.
      Florida is OK. 
      Atlanta is OK
      Maui: Even after Tsoil sensor wrapped in Al foil and repositioned, values
      still>0 C.  Concern of bad sensor.

SONICS:	Atl heaters cycling occasionally.  Wind data looks good.
	
RADIOMETERS: OK.

T/RH:  OK.

LEVELS, COMPASS:  Maui better now.  Bal y is getting near limit.  
 
VOLTAGES: 
Atl:  teg volt. 14.5->15 V; bat: 14.5 V
      icharge: 2->2 A ; iload: 1 A with spikes
Maui: teg: 14 - >15 v; bat:13.5-14.5 v
      icharge:1.4-1.6 A; iload: 1.2 A
Bal: teg: 14-14.5 V; bat: 14 V
     icharge: 1.4- >2 A; iload: 1.6 A
Fla:  teg:13.5-14.5 V;  bat:13-14 V 
      icharge: > 2 A;  iload:1.65 A 

LEADS: No change.

WATER PONDS: Slowly increasing in number, size and depth.

7/09/98 1600 - 7/10/98 1600 GMT


CURRENT WEATHER:NE winds 3m/s, clouds, foggy, vis about 1 km.
                temperature 0 C at 08:00 am local time; pressure 1015.1 mb.  				
BASE:	pampoll working.  SHEBOP up 

STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is OK. 
      Atlanta is OK
      Maui:  Tsoil sensor may be bad. Too warm.

SONICS:	No heaters cycling.  Wind data looks good except spikes at Bal and Atl.
	
RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  Maui out of level.  Rest OK.  
 
VOLTAGES: 
Atl:  teg volt. >15 V; bat: 14-14.5 V
      icharge: 2 A ; iload: 1 A with spikes
Maui: teg: 13.5- 14.5 v; bat:13-14 v
      icharge:1.6->2 A; iload: 1.2 A
Bal: teg: 13-15 V; bat: 13-14 V
     icharge: >2 A; iload: 1.6 A
Fla:  teg:13.5-14.5 V;  bat:13.2-13.8 V 
      icharge: > 2 A;  iload:1.65 A 

LEADS: No change.

WATER PONDS: Slowly increasing in number and size.

7/10/98 1600 - 7/11/98 1600 GMT


CURRENT WEATHER:NE winds 2m/s, pt. cloudy, fog, vis 1km
                temperature  1.5C at 08:00 am local time; pressure 1020.8 mb.  				
BASE:	pampoll working.  SHEBOP up 
STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is OK. 
      Atlanta is OK
      Maui:  Tsoil sensor is bad. Too warm.

SONICS:	No heaters cycling.  Wind data looks good.	
RADIOMETERS: OK, except outgoing case and dome at maui running slightly higher
than incoming case and dome temperatures.

T/RH:  OK.

LEVELS, COMPASS:  Maui y level 1.3 degrees out of level.  Rest OK.  
 
VOLTAGES: 
Atl:  teg volt. >15 V; bat: 14 V
      icharge: 2 A ; iload: 1.2 A, TEG temp. 29
Maui: teg: 13.5- 14.5 v; bat:13-14 v
      icharge:>2 A; iload: 1.2 A, TEG temp. 34
Bal: teg: 13-14.5 V; bat: 13-14 V
     icharge: >2 A; iload: 1.6 A, TEG temp. 40
Fla:  teg:13.5-14 V;  bat:13.2-14 V 
      icharge: > 2 A;  iload:1.7 A, TEG temp. 28 

LEADS: No change.

WATER PONDS: Slowly increasing in number and size.

7/11/98 1600 - 7/13/98 1600 GMT


CURRENT WEATHER:NW winds 2m/s, overcast, vis 5km
                temperature  0C at 08:00 am local time; pressure 1025.0 mb.  				
BASE:	pampoll working.  SHEBOP up 
STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is OK. 
      Atlanta is OK
      Maui:  Tsoil sensor is bad. Too warm.

SONICS:	Heators on 2 times at Balt. and Maui.  Wind data looks good except
When heaters came on.
	
RADIOMETERS: OK, except outgoing case and dome at maui running up to 1.3 
degrees higher than incoming case and dome temperatures.

T/RH:  OK.

LEVELS, COMPASS:  Maui y level 1.4 degrees out of level.  Balt. x level right at
1 degree out of level.  Rest OK.  
 
VOLTAGES: 
Atl:  teg volt. >15 V; bat: 14.2 V
      icharge: 2 A ; iload: 1.1 A, TEG temp. 36
Maui: teg: 13.5- 14 v; bat:13-14 v
      icharge:1.6 A; iload: 1.2 A, TEG temp. 40
Bal: teg: 13-14 V; bat: 13-14 V
     icharge: >2 A; iload: 1.6 A, TEG temp. 42
Fla:  teg:13.5-14 V;  bat:13.2-14 V 
      icharge: > 2 A;  iload:1.7 A, TEG temp. 38
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size.

7/13/98 1600 - 7/14/98 1600 GMT


CURRENT WEATHER:NW winds 2m/s, overcast, vis 2km
                temperature  -1C at 08:00 am local time; pressure 1018.0 mb.  				
BASE:	pampoll working.  SHEBOP up 
STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is OK. 
      Atlanta is OK
      Maui:  Tsoil sensor is bad. Tcase & Tdome out running high

SONICS:	Heators on 3 times at all.  Wind data looks good except
When heaters came on.
	
RADIOMETERS: OK, except outgoing case and dome at maui running up to 2 
degrees higher than incoming case and dome temperatures.

T/RH:  OK.

LEVELS, COMPASS:  Maui y level 1.4 degrees out of level.  Balt. Y level right at
1 degree out of level.  Rest OK.  
 
VOLTAGES: 
Atl:  teg volt. >15 V; bat: 13.5 - 14.5 V
      icharge: >2 A ; iload: 1.1 A, TEG temp. 25 - 35
Maui: teg: 13.5- 14.5 v; bat:13.5-14.5 v
      icharge:1.6- >2 A; iload: 1.2 A, TEG temp. 35
Bal: teg: 13-14 V; bat: 13-14 V
     icharge: >2 A; iload: 1.6 A, TEG temp. 30-45
Fla:  teg:13.5-14 V;  bat:13-13.5 V 
      icharge: > 2 A;  iload:1.7 A, TEG temp. 38
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size.

7/15/98 1600 - 7/15/98 1600 GMT


CURRENT WEATHER:NW winds 2m/s, overcast, vis 2km
                temperature  -1.5C at 08:00 am local time; pressure 1015.0 mb.  				
BASE:	pampoll working.  SHEBOP up 
STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is OK. 
      Atlanta is OK
      Maui:  Tsoil sensor is bad. 

SONICS:	Heators at Alanta on 1 time at all.  Wind data looks good.

	
RADIOMETERS: OK, Fixed fans on outgoing radiometers at Maui yesterday.

T/RH:  OK.

LEVELS, COMPASS:  Leveled Maui yesterday, Maui's Y level did not respond.  Balt. Y level just above 1 degree out of level.  Rest OK.  
 
VOLTAGES: 
Atl:  teg volt. 14 ->15 V; bat: 14 V
      icharge: >2 A ; iload: 1.1 A, TEG temp. 25 - 35
Maui: teg: 13.5- 14.5 v; bat:13-14 v
      icharge:1.6- >2 A; iload: 1.2 - 1.6 A, TEG temp. 35 - 40
iload increased to 1.6 once fans were fixed.
Bal: teg: 13-14 V; bat: 13-14 V
     icharge: >2 A; iload: 1.6 A, TEG temp. 25 - 40
Fla:  teg:13.5-14.5 V;  bat:13-14 V 
      icharge: > 2 A;  iload:1.6 A, TEG temp. 35
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size.

7/15/98 1600 - 7/16/98 1600 GMT


CURRENT WEATHER:NW winds 2m/s, overcast, vis 3km
                temperature  -1.0C at 08:00 am local time; pressure 1017.0 mb.  				
BASE:	pampoll working.  SHEBOP up 
STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is OK. 
      Atlanta is OK
      Maui:  Tsoil sensor is bad. 

SONICS:	  OK

	
RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  Maui's Y level not reding correctly.  Balt. Y level above 1 
degree out of level.  Rest OK.  
 
VOLTAGES: 
Atl:  teg volt. 14 - >15 V; bat: 13.5 - 14 V
      icharge: >2 A ; iload: 1.1 A, TEG temp. 35
Maui: teg: 14 - 14.8 v; bat:13-14 v
      icharge:1.6- >2 A; iload: 1.6 A, TEG temp. 38 - 42
Bal: teg: 13-14 V; bat: 13-14 V
     icharge: 1.6 - >2 A; iload: 1.6 A, TEG temp. 30 - 34
Fla:  teg:13.5-14.5 V;  bat:13-13.5 V 
      icharge: 1.8 - > 2 A;  iload:1.6 A, TEG temp. 28 - 35
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size.

7/16/98 1600 - 7/17/98 1600 GMT


CURRENT WEATHER:SW winds 1.2m/s, Partly Sunny, vis 5km
                temperature  -1.0C at 08:00 am local time; pressure 1019.0 mb.  				
BASE:	pampoll working.  SHEBOP up 
STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is OK. 
      Atlanta is OK
      Maui:  Tsoil sensor is bad, Y level sensor is bad 

SONICS:	  OK

	
RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  Balt. Y level is 1.5 degrees out of level. 
degree out of level.  Rest OK.  
 
VOLTAGES: 
Atl:  teg volt. >15 V; bat: 14 V
      icharge: 1.9 A ; iload: 1.1 A, TEG temp. 35-42
Maui: teg: 14 - 14.8 v; bat:13-14 v
      icharge:1.8- >2 A; iload: 1.6 A, TEG temp. 38 - 42
Bal: teg: 13-15 V; bat: 13-14.5 V
     icharge: >2 A; iload: 1.6 A, TEG temp. 25 - 40
Fla:  teg:13.5-14.5 V;  bat:13.2-14 V 
      icharge: > 2 A;  iload:1.6 A, TEG temp. 28 - 40
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size.

7/17/98 1600 - 7/18/98 1600 GMT


CURRENT WEATHER:SE winds 3m/s, mostly cloudy, vis 5km
                temperature  - .5C at 08:00 am local time; pressure 1020.5 mb.  				
BASE:	pampoll working.  SHEBOP up 
STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida Tsoil is high, may be seeing Solar Radiation.
      Atlanta is OK
      Maui:  Tsoil sensor is bad, Y level sensor is bad 

SONICS:	  OK

	
RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  Balt. Y level is 1.8 degrees out of level. 
Rest OK.  (Visit to Balt. planned for Monday.)
 
VOLTAGES: 
Atl:  teg volt. 13.5 - >15 V; bat: 13.5 - 14 V
      icharge: 1.9 A ; iload: 1.1 A, TEG temp. 38-46
Maui: teg: 13.5 - 14.8 v; bat:13-14 v
      icharge:1.6- >2 A; iload: 1.6 A, TEG temp. 38 - 46
Bal: teg: 13- >15 V; bat: 13-14.2 V
     icharge: 1.6- >2 A; iload: 1.6 A, TEG temp. 32 - 42
Fla:  teg:13.5- >15 V;  bat:13-13.5 V 
      icharge:1.8- > 2 A;  iload:1.6 A, TEG temp. 32 - 46
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size.

7/18/98 1600 - 7/19/98 1600 GMT


CURRENT WEATHER:Light and variable, mostly cloudy, vis 5km
                temperature  + .5C at 08:00 am local time; pressure 1021.3 mb.  				
BASE:	pampoll working.  SHEBOP up 

STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is ok
      Atlanta is OK
      Maui:  Tsoil sensor is bad, Y level sensor is bad, One bad spike in
the many data parameters just before 0800 local.

SONICS:	  OK
	
RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  Balt. Y level is 1.9 degrees out of level. 
Rest OK.  (Visit to Balt. planned for Monday.)
 
VOLTAGES: 
Atl:  teg volt. 13.5 - >15 V; bat: 13.5 - 14 V
      icharge: 1.9 A ; iload: 1.1 A, TEG temp. 35-42
Maui: teg: 14 v; bat:13.5 v
      icharge:1.6- >2 A; iload: 1.6 A, TEG temp. 38 - 40
Bal: teg: 13.5 V; bat: 13.5 V
     icharge: 1.6- >2 A; iload: 1.6 A, TEG temp. 32 - 42
Fla:  teg:13.5 V;  bat:14-14.5 V 
      icharge:1.8- > 2 A;  iload:1.6 A, TEG temp. 30 - 40
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size.

7/19/98 1600 - 7/20/98 1600 GMT


CURRENT WEATHER:Southerly winds at 4 m/s, scattered clouds, with very light fog.  Good visibility. Temperature + 1.5C at 08:00 am local time; pressure 1019.9 mb.  				
BASE:	pampoll working.  SHEBOP up 

STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is ok
      Atlanta is OK One Spike at 0230 UTC affecting many parameters.
      Maui:  Tsoil sensor is bad, Y level sensor is bad, 

SONICS:	  OK
	
RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  Balt. Y level is 1.9 degrees out of level. 
Rest OK.  (Visit to Balt. planned for today.)
 
VOLTAGES: 
Atl:  teg volt. 14.0 - >15 V; bat: 13.5 - 14.9 V
      icharge: 2.0 A ; iload: 1.0 A, TEG temp. 40-42
Maui: teg: 13.7-14.2 v; bat:13.0-13.7 v
      icharge:1.6- >2 A; iload: 1.55 A, TEG temp. 42
Bal: teg: 13.0-13.8 V; bat: 13.0-13.8 V
     icharge: 1.7- >2 A; iload: 1.6 A, TEG temp. 31 
Fla:  teg:13.6-14.4 V;  bat:13.0-13.5 V 
      icharge:1.8- > 2 A;  iload:1.6 A, TEG temp. 34 
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size and depth.

7/20/98 1600 - 7/21/98 1600 GMT


CURRENT WEATHER:Southerly winds at 3 m/s, Fog, visibility 0.5km.  Temperature 
+ 0C at 08:00 am local time; pressure 1020.9 mb.  				
BASE:	pampoll working.  SHEBOP up.  Problem with Pampole overnight,`
rebooted pampoll computer, all missing data transmitted.

STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is ok
      Atlanta is OK 
      Maui:  Tsoil sensor is bad, Y level sensor is bad, One bad spike in many
             parameters at 1900. 

SONICS:	  OK
	
RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  Balt. now level.  Rest OK.  
 
VOLTAGES: 
Atl:  teg volt. 13.5 - >15 V; bat: 12.5 - 13.5 V
      icharge: 2.0 A ; iload: 1.1 A, TEG temp. 35-48
Maui: teg: 14.5 v; bat:13.5 v
      icharge:1.6- >2 A; iload: 1.6 A, TEG temp. 35-45
Bal: teg: 13.0- >15V; bat: 13.5-14.5 V
     icharge: 1.6- >2 A; iload: 1.6 A, TEG temp. 25-35 
Fla:  teg:13.6-15 V;  bat: 13.5 V 
      icharge:1.8- > 2 A;  iload: 1.6 A, TEG temp. 34 
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size and depth.

7/21/98 1600 - 7/22/98 1600 GMT


CURRENT WEATHER:3 m/s/140 deg. Light fog.  Temperature + 0.6 C at 08:00 am local time; pressure=1021.9 mb.

BASE: Pampoll down yesterday, but rebooted.  OK now. All missing data 
transmitted.

STATIONS:  Atl:  up
	   Mau:  Up
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is ok
      Atlanta is OK 
      Maui:  Tsoil sensor is bad, Y level sensor is bad.

SONICS:	  OK.  Three heater cycles at Atl in fog.
	
RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK.  
 
VOLTAGES: 
Atl:  teg volt. 13.4 - >15 V; bat: 13.3 - 14.1 V
      icharge: 1.9 A ; iload: 0.9-1.0 A, TEG temp.20-35
Maui: teg: 13.2-14.3 v; bat:12.9-13.7 v
      icharge:1.55- >2 A; iload: 1.55 A, TEG temp. 35-40
Bal: teg: 13.1- >15V; bat: 13.0-14.2 V
     icharge: 1.65- >2 A; iload: 1.6 A, TEG temp. 27-32 
Fla:  teg:13.5-14.8 V;  bat: 13.0-13.7 V 
      icharge:1.75- > 2 A;  iload: 1.-1.7 A, TEG temp. 28-33 
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size and depth.

7/22/98 1600 - 7/23/98 1600 GMT


CURRENT WEATHER:3.8 m/s SE Light fog.Temperature + 0.3 C at 08:00 am local time; pressure=1017.5 mb.

BASE: Pampoll up
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.  We watched a Polar Bear visit Maui from the bridge.
                      He looked at tripod then moved on.
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is ok
      Atlanta is OK 
      Maui:  Tsoil sensor is bad, Y level sensor is bad.

SONICS:	  OK.  Many heating cycles at Maui, in fog. Data looks ok.

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK.  
 
VOLTAGES: 
Atl:  teg volt. 13.4 - >15 V; bat: 13.5 - 14.1 V
      icharge: 1.9 A ; iload: 0.9 A, TEG temp.30-35
Maui: teg: 13.4-14.8 v; bat:13.2-14 v
      icharge:1.6 - >2 A; iload: 1.6 - 1.9 A, TEG temp. 30-35
Bal: teg: 12 - >14V; bat: 12.-14 V
     icharge: 1.6- >2 A; iload: 1.6 A, TEG temp. 24-28 
Fla:  teg:13.5-14.8 V;  bat: 12.5-14 V 
      icharge:1.8- > 2 A;  iload: 1.6 A, TEG temp. 20-24 
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size and depth.

7/23/98 1600 - 7/24/98 1600 GMT


CURRENT WEATHER:1 m/s SE partly cloudy.Temperature + 0.4 C at 08:00 am local 
time; pressure=1018.7 mb.

BASE: Pampoll up -- Pampoll lost network connection yesterday afternoon.
                    reset pampoll this morning, all data now at Shebop.
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is ok
      Atlanta is OK 
      Maui:  Tsoil sensor is bad, Y level sensor is bad.

SONICS:	  OK.  Both Alanta and maui have many spikes down to 96%.  Will keep
               an eye on this.

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK.  (Alanta's x 0.8 degrees out of level, may
                  go and check it today.)
 
VOLTAGES: 
Atl:  teg volt. 13.4 - >15 V; bat: 13.5 - 14.1 V
      icharge: 1.9 A ; iload: 0.9 A, TEG temp.28-42
Maui: teg: 13.4-14.8 v; bat:12.8-14 v
      icharge:1.6 - >2 A; iload: 1.6 - >2 A, TEG temp. 15-41
Bal: teg: 13 - 14V; bat: 13-14 V
     icharge: 1.6- >2 A; iload: 1.6 A, TEG temp. 25-35 
Fla:  teg:13.5-14.5 V;  bat: 12-14.3 V 
      icharge:1.8- > 2 A;  iload: 1.6 A, TEG temp. 25-34 
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size and depth.

7/25/98 1600 - 7/26/98 1600 GMT


CURRENT WEATHER:4 m/s S partly cloudy.Temperature + 0.6 C at 08:00 am local 
time; pressure=1016.8 mb.

BASE: Pampoll up 
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is ok
      Atlanta is OK 
      Maui:  Tsoil sensor is bad, Y level sensor is bad.

SONICS:	  OK.  

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK, except Fla. Y 1.1 degrees out of level.  Visit
	          scheduled for today.
 
VOLTAGES: 
Atl:  teg volt. 14.5 - >15 V; bat: 13.9 V
      icharge: >2.0 A ; iload: 0.9 A, TEG temp.34-45
Maui: teg: 13.4-14.5 v; bat:12.8-14 v
      icharge:1.8 - >2 A; iload: 1.6 A, TEG temp. 40-45
Bal: teg: 13.5 - >15V; bat: 13.5-14.5 V
     icharge: >2 A; iload: 1.6 A, TEG temp. 33-43 
Fla:  teg:14 - >15 V;  bat: 13.5 V 
      icharge:> 2 A;  iload: 1.6 A, TEG temp. 33-45 
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size and depth.

7/26/98 1600 - 7/27/98 1600 GMT


CURRENT WEATHER:3 m/s W Fog.Temperature + 0.2 C at 08:00 am local 
time; pressure=1009.0 mb.  Rain fell from 1500 - 2000 and off and on
from 2000 - 0100

BASE: Pampoll up 
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK
      Florida is ok
      Atlanta is OK, See below for problems during last 24 hours.
      Maui:  Tsoil sensor is bad, Y level sensor is bad.

SONICS:	  OK.  Many heater cycles at Alanta during period from 1600 - 2100.
               W has spikes during this time.

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK, except Fla. Y 1.1 degrees out of level.  Can not
                  adjust Fla. any better due to frozen adjustment screw.
		  Compass at Alanta has many spikes from 1600 - 2100, same
		  time that heaters were on. 
VOLTAGES: 
Atl:  teg volt. 13 - >15 V; bat: 13 - 14.5 V
      icharge: 0.9 - >2.0 A ; iload: 0.5 - 1.5 A, TEG temp.20-40
Maui: teg: 13-14.5 v; bat:13-13.5 v
      icharge:1.6 - >2 A; iload: 1.6 A, TEG temp. 35-40
Bal: teg: 13 - >14.5V; bat: 13-14.5 V
     icharge: 1.2 - >2 A; iload: 1.6 A, TEG temp. 20-33 
Fla:  teg:13 - 14.5 V;  bat: 13-14 V 
      icharge:1.8 - > 2 A;  iload: 1.6 - 2 A, TEG temp. 10-32 
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size and depth.

7/27/98 1600 - 7/28/98 1600 GMT


CURRENT WEATHER:7 m/s SW Overcast.Temperature + 1.5 C at 08:00 am local 
time; pressure=1008.0 mb.  

BASE: Pampoll up 
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK; One spike at 2000 GMT in many parameters.
      Florida is ok
      Atlanta is OK
      Maui:  Tsoil sensor is bad, Y level sensor is bad.

SONICS:	  OK.  

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK, except Fla. Y 1.2 degrees out of level.  Can not
                  adjust Fla. any better due to frozen adjustment screw.
		  
VOLTAGES: 
Atl:  teg volt. 14 - >15 V; bat: 14 - 14.5 V
      icharge: 1.8 - 2.0 A ; iload: 1 - 1.5 A, TEG temp.15-25
Maui: teg: 13.5-14.5 v; bat:13-14 v
      icharge:1.6 - >2 A; iload: 1.6 - 2 A, TEG temp. 25-40
Bal: teg: 13 - >15 V; bat: 13-14 V
     icharge: 1 - >2 A; iload: 1.6 A, TEG temp. 25-33 
Fla:  teg:13 - 14.8 V;  bat: 13-14 V 
      icharge:1.9 - > 2 A;  iload: 1.6 A, TEG temp. 20-32 
 
LEADS: No change.

WATER PONDS: Slowly increasing in number and size and depth.

7/28/98 1600 - 7/29/98 1600 GMT


CURRENT WEATHER:11 m/s W Overcast.Temperature -0.2 C at 08:00 am local 
time; pressure=998.6 mb. Wind Chill -23 C.  

BASE: Pampoll up 
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK; 
      Florida is ok
      Atlanta is OK
      Maui:  Tsoil sensor is bad, Y level sensor is bad.
      Note that Tsoil sensors showed below freezing values at Bal & Fla.  ALso,
      with the onset of the colder temperatures, Gsoil changed signs compared to      last couple of weeks.

SONICS:	  OK. Heaters came on at all except Fla - during precip yesterday 
afternoon. 

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK, except Fla. Both x&y out of level - took big jump 
about 09 UTC.  Bal x-level also jumped at same time, but still within 1 deg 
limit. 
		  
VOLTAGES: 
Atl:  teg volt. 14.1 - >15 V; bat: 14.1 - 14.5 V
      icharge: 1.8 - 1.95 A ; iload:0.8 - 1.4 A, TEG temp.4-25
Maui: teg: 13.2-13.8 v; bat:13-13.5 v
      icharge:1.6 - 2 A; iload: 1.55 A, TEG temp. 25-40
Bal: teg: 14 - >14.1 V; bat: 14.0-14.1 V
     icharge: 1 - 1.6 A; iload: 1.45-1.9 A, TEG temp. 18-24 
Fla:  teg:13.5 - 14.5 V;  bat: 13.1-14 V 
      icharge:> 2 A;  iload: 1.6-1.7 A, TEG temp. 14-20 
 
LEADS: Well-mixed, frazzle ice.

WATER PONDS: Frazzle ice on meltponds.

7/29/98 1600 - 7/30/98 1600 GMT


CURRENT WEATHER:5 m/s SW Overcast.Temperature -0.5 C at 08:00 am local 
time; pressure=999.6 mb.   

BASE: Pampoll up 
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK; 
      Florida is ok
      Atlanta is OK
      Maui:  Tsoil sensor is bad, Y level sensor is bad.
      

SONICS:	  OK. Many heater cycles at all except Fla. 

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK, except Maui -- Maui X level jumped to >6 at 1600 GMT
(0800 local) yesterday.  
		  
VOLTAGES: 
Atl:  teg volt. 13.5 - 14.5 V; bat: 13.5 - 14.5 V
      icharge: 1.5 - >2 A ; iload:1.0 - 1.5 A, TEG temp.7
Maui: teg: 13-14.5 v; bat:13-14 v
      icharge:1.5 - 2 A; iload: 1.5 - 2 A, TEG temp. 25
Bal: teg: 13 - 14.5 V; bat: 13-14 V
     icharge: 1 - 1.8 A; iload: 1.5-1.9 A, TEG temp. 20 
Fla:  teg:13.5 - 14.5 V;  bat: 13-14 V 
      icharge:1.8 -> 2 A;  iload: 1.4-1.6 A, TEG temp. 18 
 
LEADS: Quebec lead opened up -- Lead beyond Alanta has opened up.

WATER PONDS: 

7/30/98 1600 - 7/31/98 1600 GMT


CURRENT WEATHER: 7 m/s W Overcast with some breaks.Temperature -0.8 C at 08:00 
am local time; pressure=999.4 mb and begining to rise.   

BASE: Pampoll up -- pampoll went down at 0530 local, rebotted at 0900 local
                    all data restored.
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK; 
      Florida is ok
      Atlanta is OK
      Maui:  Tsoil sensor is bad, Y level sensor is bad.
      

SONICS:	  OK. 2 to 3 heater cycles at all except Fla. 

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK, except Fla. -- Fla. X and Y levels jumped to 3 to 4 
degrees at 0800 GMT (0000 local).  
		  
VOLTAGES: 
Atl:  teg volt. 13.5 - >15 V; bat: 13.5 - 14.5 V
      icharge: 1.5 - 2 A ; iload:1.3 A, TEG temp.7
Maui: teg: 13-15 v; bat:13-14 v
      icharge:1.5 - 2 A; iload: 1.6 A, TEG temp. 20 - 30
Bal: teg: 12.5 - 14 V; bat: 12.5-13.5 V
     icharge: .8 - >2 A; iload: 1.6 A, TEG temp. 22 
Fla:  teg:14 - 15 V;  bat: 13.5-14 V 
      icharge:1.8 -> 2 A;  iload: 1.4 A, TEG temp. 18 
 
LEADS: Lead beyond Alanta has opened up.

WATER PONDS: 

7/31/98 1600 - 8/1/98 1600 GMT


CURRENT WEATHER: 5 - 6 m/s W clear.Temperature -2.0 C at 08:00 
am local time; pressure=1001.0 mb and going up.   

BASE: Pampoll up 
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK; 
      Florida is ok
      Atlanta is OK
      Maui:  Tsoil sensor is bad, Y level sensor is bad.
      

SONICS:	  OK. 2 to 3 heater cycles at all except Fla. 

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK, except Fla. -- Fla. X is just over 1 degree out. 
		  
VOLTAGES: 
Atl:  teg volt. 13 - >15 V; bat: 13 - 14.8 V
      icharge: 1.6 - 2 A ; iload:1.2 - 1.6 A, TEG temp.7
Maui: teg: 13 - >15 v; bat:13-14 v
      icharge:1.6 - >2 A; iload: 1.6 A, TEG temp. 15 - 25
Bal: teg: 13 - 15 V; bat: 13-14 V
     icharge: 1.2 - >2 A; iload: 1.6 - 1.8 A, TEG temp. 22 
Fla:  teg:14 - 14.8 V;  bat: 13.8-14.2 V 
      icharge:1.8 -> 2 A;  iload: 1.4 A, TEG temp. 5-20 
 
LEADS: 

WATER PONDS:  At 0800 local, small 100% ice cover, mediam 50 - 60% ice,
              large 20 - 30% ice cover.  Ice cover 1 - 3 cm thick.

8/1/98 1600 - 8/2/98 1600 GMT


CURRENT WEATHER: 4 m/s W overcast.  Temperature -1.8 C at 08:00 
am local time; pressure=1001.2 mb.   

BASE: Pampoll Was down since 1830 local (0230 GMT).  Had to reboot Pampoll
      3 times to bring back up.  Data from Balt. and Maui recovered.  Data
      gap left in Florida from 1830 - 2130 local (0230 - 0530 GMT).  Data
      gap in Tplat, Tthrm, Rh, compass at Atlanta from 1900 - 1000 local
      (0300 - 1800 GMT).

	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK; 
      Florida  Data not transmitted 1830 - 2130 local. all else OK
      Atlanta is  Trouble with data reception 1900 - 1000 local (See
                  above for details).
     Maui:  Tsoil sensor is bad, Y level sensor is bad.
      

SONICS:	  All stations showing many short periods below 99% and some
          short periods below 96%.  

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK, except Fla. -- Fla. leveled yesterday morning.
                  Fla. slipped back out of level between 2100 and 2200 local
                  last night.

LEVEL OFFSETS:   Based on the buble level measurement, Fla. now has new
                 offsets, below is list of all offsets as they stand now:

	Atlanta		-0.90	 0.22
	Maui		-0.15	 0.86
	Balt.            0.23	-0.10
	Fla.		 0.40	 0.23 
		  
VOLTAGES: 
Atl:  teg volt. 13 - >15 V; bat: 13 - 14.8 V
      icharge: 1.9 A ; iload:1.2 - 1.6 A, TEG temp. 10 - 15
Maui: teg: 13 - >15 v; bat:13-14.5 v
      icharge:1.6 - 2 A; iload: 1.5 - 1.9A, TEG temp. 15 - 30
Bal: teg: 13 - >15 V; bat: 13-14.5 V
     icharge: 1.8 - >2 A; iload: 1.5 A, TEG temp. 25 - 35 
Fla:  teg:14 - >15 V;  bat: 13-14.7 V 
      icharge:1.8 -> 2 A;  iload: 1.4 A, TEG temp. 5-20 
 
LEADS: 

WATER PONDS:  At 0800 local, small 100% ice cover, mediam 50 - 60% ice,
              large 20 - 30% ice cover.  Ice cover 1 - 3 cm thick.

8/2/98 1600 - 8/3/98 1600 GMT


CURRENT WEATHER: 3-4 m/s NNW overcast.  Temperature -1.5 C at 08:00 
am local time; pressure=1008.5 mb.   

BASE: Pampoll up
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK; 
      Florida  is OK 
      Atlanta is  OK
     Maui:  Tsoil sensor is bad, Y level sensor is bad.
      

SONICS:	  OK

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK, except Fla. -- Fla. leveled yesterday afternoon.
                  Fla. slipped back out of level between 2100 and 2200 local
                  last night, but is this true?  Yesterday morning around
                  1000 local, Fla. levels recovered by themselves, and
                  when I leveled florida in the afternoon the manual
                  electronic "bubble" level showed Fla. to be less than
                  0.3 degrees off.

LEVEL OFFSETS:   Based on the buble level measurement, Fla. now has new
                 offsets, below is list of all offsets as they stand now:

	Atlanta		-0.90	 0.22
	Maui		-0.15	 0.86
	Balt.            0.23	-0.10
	Fla.		 0.34	 0.01 
		  
VOLTAGES: 
Atl:  teg volt. 13 - >15 V; bat: 13 - 14.5 V
      icharge: 1.8 - >2 A ; iload:1.2 - 1.4 A, TEG temp. 15 - 30
Maui: teg: 13 - 15 v; bat:13-14.5 v
      icharge:1.6 - >2 A; iload: 1.4 - 2.0A, TEG temp. 20 - 35
Bal: teg: 13 - 15 V; bat: 13-14 V
     icharge: 1.6 - >2 A; iload: 1.6 A, TEG temp. 30 - 40 
Fla:  teg:13.5 - 15 V;  bat: 13-14.5 V 
      icharge:1.8 -> 2 A;  iload: 1.4 - 1.6 A, TEG temp. 15-35 
 
LEADS: 

WATER PONDS:  At 0800 local, small 100% ice cover, mediam to large
50 - 70% ice cover.  Ice cover 2 - 3 cm thick.

8/3/98 1600 - 8/4/98 1600 GMT


CURRENT WEATHER: 3 m/s SW overcast.  Temperature -0.5 C at 08:00 
am local time; pressure=1013.2 mb.   

BASE: Pampoll up -- Data missing 1310-1410 local (2110-2210 GMT).
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK; 
      Florida  is OK
      Atlanta is  OK
     Maui:  Tsoil sensor is bad, Y level sensor is bad.
      

SONICS:	  OK

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK, Fla. levels recovered by themselves at around
		  1030 local.
  
VOLTAGES: 
Atl:  teg volt. 13 - >15 V; bat: 13 - 14.5 V
      icharge: 1.6 - 2 A ; iload:0.9 - 1.2 A, TEG temp. 5 - 35
Maui: teg: 13 - 15 v; bat:13-14.5 v
      icharge:1.6 - 2 A; iload: 1.6 - 1.9A, TEG temp. 25 - 40
Bal: teg: 13 - 14 V; bat: 13-14 V
     icharge: 1.6 - >2 A; iload: 1.6 - 1.9A, TEG temp. 40 
Fla:  teg:14 - 14.5 V;  bat: 13-13.5 V 
      icharge:1.8 -> 2 A;  iload: 1.6 A, TEG temp. 40 
 
LEADS:  Lead behind Maui opened up (With in 75 m of Maui).

WATER PONDS:  

8/4/98 1600 - 8/5/98 1600 GMT


CURRENT WEATHER: 4 m/s SW, FOG.  Temperature -0.6 C at 08:00 
am local time; pressure=1014.0 mb.   

BASE: Pampoll up.
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  up

DATA: 
      Baltimore is OK; 
      Florida  is OK
      Atlanta is  OK
     Maui:  Tsoil sensor is bad, Y level sensor is bad.
     Balt. and Maui each have one spike in the data affecting many of the
                    parameters. 

SONICS:	  OK

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  All OK
  
VOLTAGES: 
Atl:  teg volt. 13 - >15 V; bat: 13 - 14.5 V
      icharge: 1.6 - 1.8 A ; iload:0.9 A, TEG temp. 15 - 20
Maui: teg: 13 - 14.5 v; bat:13-14 v
      icharge:1.6 - >2 A; iload: 1.6 A, TEG temp. 35 - 40
Bal: teg: 13 - 14 V; bat: 13-14 V
     icharge: 1.6 - >2 A; iload: 1.6A, TEG temp. 30-40 
Fla:  teg:13.5 - 14.5 V;  bat: 13-14 V 
      icharge:1.8 -> 2 A;  iload: 1.6 A, TEG temp. 25-35 
 
LEADS:  Lead behind Maui closed up during the day yesterday.

WATER PONDS:  

8/6/98 1600 - 8/7/98 1600 GMT


CURRENT WEATHER: 6 m/s S, FOG.  Temperature -2.3 C at 08:00 
am local time; pressure=1005.2 mb.   

BASE: Pampoll up.
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  Worked for 5 hours yesterday after fuse replaced, then stopped

DATA: 
      Baltimore is OK; 
      Florida not being received
      Atlanta is OK
      Maui:  Tsoil sensor is bad, Y level sensor is bad. Effect of repositioning
      radiometers over meltpond clearly noticeable. Showed periods of suspicious      high winds yesterday-numerous heater cycles.
    

SONICS:	  Heaters at all stations going on several times at all stations, most 
frequently at Maui.

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  Atl, Bal OK, Maui x right at tolerance, FLA needs to be 
releveled
  
VOLTAGES: 
Atl:  teg volt. 13.2 - >15 V; bat: 13 - 14.5 V
      icharge: 1.6 - 1.8 A ; iload:1.2 A, TEG temp. 20 - 24
Maui: teg: 13 - 14.2 v; bat:12.8-14 v
      icharge:1.3 - >2 A; iload: 1.0-2.0 A, TEG temp. 25 - 27
Bal: teg: 12.9 - 15 V; bat: 12.9-14.2 V
     icharge: 1.4 - >2 A; iload: 1.6A, TEG temp. 15-18 
Fla:  teg:13.2 - 13.4 V;  bat: 13.1-13.3 V 
      icharge:1.6 -> 2 A;  iload: 1.8->2 A, TEG temp.18 
 
LEADS:  Lead north of Florida and Maui opened wide yesterday and closed somewhat
last night.  A wide lead was noted 100 m west of Baltimore, and has probably 
been there a day or two

WATER PONDS: Getting slightly deeper, but the smaller ones are getting a thin
ice cover.

8/7/98 1600 - 8/8/98 1600 GMT


CURRENT WEATHER: 6 m/s SSE, FOG.  Temperature +0.5 C at 08:00 
am local time; pressure=1001.5 mb.   

BASE: Pampoll down
	Shebop up

STATIONS:  Atl:  Stuck in transmitting TRH line.
	   Mau:  Up.                        
           Bal:  up
           Fla:  up

Pampoll had stopped passing data to Shebop at about 0530 local.  Pampoll was
locked up so I had to reboot.  After reboot, pampoll locked up again so I had
to reboot a second time.  Balt., Fla., and Maui caught up to 0900 local on the
Shebop graphs, however found that pampoll was locked up at 1300 local (aug. 8)
 and that
none of the graphs had been updated in Shebop since 0900 local.  Rebooted 
pampoll, maui caught up to 1330, and Fla. started data at 1330.  Balt. and
Atlanta did not respond.  (Both Fla. and Maui stopped updating to Shebop at
1530 local.)  Tried to sign on to stations from Pampoll, the minuite that I
typed eve_console , I started getting lines of data scrolling by that
began with TRH003.  After some detective work I tracked this problem down to
the fact that Alanta was stuck in some kind of transmit mode transmitting this
TRH line, therefore not letting any of the stations to transmitt back to Pam
poll.  Went to Alanta this evening (aug. 8) and rebooted eve.  Alanta stopped
transmitting this TRH line and all other stations have started reporting.  

Snow Surface:  Temperatures rose overnight, snow/ice surface has softened up
conciderably overnight.

LEADS:  Lead north of Florida stayed opened wide yesterday and lead near Maui   closed somewhat.  

WATER PONDS: Getting slightly wider overnight with the warmer temepratures.
Most melt ponds have lost their thin ice cover.

8/8/98 1600 - 8/9/98 1600 GMT


CURRENT WEATHER: 1 m/s NE, Overcast.  Temperature -0.5 C at 08:00 
am local time; pressure=1005.8 mb.   

BASE: Pampoll up.
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK; 

      Florida is OK.  Fla. data missing 0900-1200 local and 1600-1900 local
		      This data not transmitted due to problem with Alanta's
                      continous transmission.

      Atlanta is now OK.  Problem with continous transmission of THR data from
            Alanta yesterday, had to manually reboot EVE.  Alanta missing
            TRH data and compass data from 0500-1900 local.

      Maui:  Tsoil sensor is bad, Y level sensor is bad. Effect of repositioning
      radiometers over meltpond clearly noticeable. Showed periods of suspicious      high winds yesterday-numerous heater cycles.
    

SONICS:	 OK

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  OK  

VOLTAGES: 
Atl:  teg volt. 13 - >15 V; bat: 13 - 14.5 V
      icharge: 1.9 A ; iload: 1.1 A, TEG temp. 10 - 40
Maui: teg: 13.5 - 14 v; bat:13-13.5 v
      icharge:1.9 - 2.5 A; iload: 1.6 A, TEG temp. 30 - 40
Bal: teg: 13-14 V; bat: 12.9-13.5 V
     icharge: 1.6 - 2 A; iload: 1.5A, TEG temp. 20-40 
Fla:  teg:13 - 13.5 V;  bat: 13-13.5 V 
      icharge:1.9 - 3 A;  iload: 2 A, TEG temp.15 - 30 
 
LEADS:  Big lead open NW of Florida, Lead open E of Atlanta.

Maui Range and Bearing 1085m @ 046
Atl. Range and Bearing 1530m @ 060
Balt. Range and Bearing 5km est. @ 167   

WATER PONDS: 

8/9/98 1600 - 8/10/98 1600 GMT


CURRENT WEATHER: 4 m/s NE, FOG.  Temperature +0.5 C at 08:00 
am local time; pressure=1004.5 mb.   

BASE: Pampoll up.
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK; Data Spike affecting many data parameters at 0400.
      Florida is OK.  
      Atlanta is now OK. 
      Maui:  Tsoil sensor is bad, Y level sensor is bad. 
    

SONICS:	 OK

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  OK  

VOLTAGES: 
Atl:  teg volt. 13 - >15 V; bat: 13 - 14 V
      icharge: 1.5 - 2 A ; iload: 1.1 A, TEG temp. 20 - 40
Maui: teg: 13 - 14 v; bat:13-14 v
      icharge:1.6 - 2.5 A; iload: 1.6 A, TEG temp. 25 - 40
Bal: teg: 13-14 V; bat: 13-14 V
     icharge: 1.6 - 3 A; iload: 1.6A, TEG temp. 20-35
Fla:  teg:13 - 14 V;  bat: 13-14 V 
      icharge:1.6 - 3 A;  iload: 2 A, TEG temp.10 - 25 
 
LEADS:  

Maui Range and Bearing 1085m @ 046
Atl. Range and Bearing 1530m @ 060
Balt. Range and Bearing 5km est. @ 167   

WATER PONDS: 

8/10/98 1600 - 8/11/98 1600 GMT


CURRENT WEATHER: 4 m/s SE, FOG.  Temperature +0.2 C at 08:00 
am local time; pressure=1004.9 mb.   

BASE: Pampoll up.
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK
      Florida is OK.  
      Atlanta is  OK. 
      Maui:  Tsoil sensor is bad, Y level sensor is bad. 
    

SONICS:	 OK, heaters came on many times at Atlanta and Maui.

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  OK  

VOLTAGES: 
Atl:  teg volt. 13 - 14.5 V; bat: 13 - 14.5 V
      icharge: 1.8 - >2 A ; iload: 1 - 1.5 A, TEG temp. 15 - 30
Maui: teg: 13 - 14 v; bat:13-14 v
      icharge:1.6 - >2 A; iload: 1.5 - 1.9 A, TEG temp. 20 - 30
Bal: teg: 13.5-14 V; bat: 13.5-14 V
     icharge: 1.4 - >2 A; iload: 1.5A, TEG temp. 10-25
Fla:  teg:12.5 - 13.5 V;  bat: 12.5-13.5 V 
      icharge:0 - 2 A;  iload: 2 A, TEG temp.5 - 15 
 
LEADS:  


WATER PONDS: We have seen some increase in the size of meltponds, also the
undermining if the edges of meltponds.

Snow Surface:  Snow/ice surface has been very soft during the last 2 days

8/11/98 1600 - 8/12/98 1600 GMT


CURRENT WEATHER: 3 m/s SE, FOG.  Temperature +0.2 C ; pressure=1005.8 mb.   
                  at 800 AKDT
BASE: Pampoll up.
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK
      Florida is OK.  
      Atlanta is  OK. 
      Maui:  Tsoil sensor is bad, Y level sensor is bad. 
    

SONICS:	 OK, A few heating cycles at Maui, one at Florida

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  Maui X, Atlanta X, levels don't look good
                  Compass OK

VOLTAGES: OK I think

LEADS: No new ones  


WATER PONDS: First day, nothing to compare with

NOTES:  First day for Peter and Dave.  Apparently some liquid water getting
on sonics.  I am not sure how critical levels are, there seems to have been
some settling.  Please let us know what level is acceptable. Also please
check todays data to see if I have missed anything important - Peter

8/12/98 1600 - 8/13/98 1600 GMT


CURRENT WEATHER: 6m/s W, FOG.  Temperature -0.1 C ; pressure=1005.0 mb.   
                  at 800 AKDT, rain yesterday afternoon,evening 
BASE:   Pampoll up.  (down 0800-1300 yesterday)
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK
      Florida is OK.  
      Atlanta is  OK. 
      Maui:  Tsoil sensor is bad, Y level sensor is bad. 
    

SONICS:	 Almost continous cycling at Atlanta, A few heating cycles at Maui,
         one at Baltimore, none at Florida.  Liquid water on sensors  

RADIOMETERS: OK, two spikes in Tdomeout at Maui

T/RH:  OK.

LEVELS, COMPASS:  Levels OK  (Yesterday's Daily_Status incorrect) 
                  Compass OK

VOLTAGES: OK 

LEADS: No new ones  


WATER PONDS: About the same, no freezing 

8/13/98 1600 - 8/14/98 1600 GMT


CURRENT (0800AKDT) WEATHER: 2m/s E Overcast but good Visibility.
        Temperature -2.5 C ;  
                   
BASE:   Pampoll up. 
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK
      Florida is OK.  
      Atlanta is  OK. 
      Maui:  Tsoil sensor and Y level seem OK now  
    

SONICS:	 Almost continous cycling at Atlanta since 0100, Others OK

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  Levels OK  
                  Compass OK

VOLTAGES: OK 

LEADS: No new ones  

WATER PONDS: They are freezing over!  Yippee. 

8/14/98 1600 - 8/15/98 1600 GMT


CURRENT (0800AKDT) WEATHER: 6.5 m/s NE Overcast snow flurries
        Temperature -0.7 C, RH 98%, Pressure 996.0 mb 
                   
BASE:   Pampoll up. 
	Shebop up

STATIONS:  Atl:  up
	   Mau:  Up.                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK
      Florida is OK.  
      Atlanta is  OK excedpt sonics. 
      Maui:  Tsoil sensor and Y level seem OK now  
    

SONICS:	 Continous cycling at Atlanta, Others OK

RADIOMETERS: OK

T/RH:  OK.

LEVELS, COMPASS:  Levels OK  
                  Compass OK

VOLTAGES: OK 

LEADS: Sara`s lake almost closed  

WATER PONDS: Continuing to freeze 

8/15/98 1600 - 8/16/98 1600 GMT


CURRENT (0800AKDT) WEATHER: 6.0 m/s NNW Overcast good visibility
        Temperature -2.0 C, RH 95%, Pressure 995.8 mb 
                   
BASE:   Pampoll up. 
	Shebop up

STATIONS:  Atl:  up  Sonics not installed 
	   Mau:  Up.                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK
      Florida has some wind vector spikes, directions inconsistent..  
      Atlanta is  OK excedpt sonics. 
      Maui:  OK?  
    

SONICS:	 Atlanta removed, Others OK

RADIOMETERS: OK  Probably icing on upward looking Maui, Balt., Fla

T/RH:  OK.

LEVELS, COMPASS:  Levels OK  
                  Florida suspicious Compass, the rest OK

VOLTAGES: OK 

LEADS: Sara`s lake still small  

WATER PONDS: Continuing to freeze, wind keeping some areas open 

8/16/98 1600 - 8/17/98 1600 GMT


CURRENT (0800AKDT) WEATHER: 5.5 m/s SSW Overcast OK visibility
        Temperature -1.5 C, RH 95%, Pressure 995.8 mb, snow earlier 
                   
BASE:   Pampoll up. 
	Shebop up

STATIONS:  Atl:  up  Sonics not installed 
	   Mau:  Up.                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK
      Florida is OK   
      Atlanta is  OK excedpt sonics. 
      Maui:  Wind direction off due to compass 
    

SONICS:	 Atlanta removed, Others OK

RADIOMETERS: OK  

T/RH:  OK.

LEVELS, COMPASS:  Levels OK  
                  Maui compass 90% too high
                  Yesterday it was Maui not Florida that was bad
VOLTAGES: OK 

LEADS: Sara`s lake completely gone, no new leads nearby  

WATER PONDS: Continuing to freeze, some snow drifting over, bur bottom ablation 
             continues.  As a result there may be new "black holes" that we 
             can't see.

8/17/98 1600 - 8/18/98 1600 GMT


CURRENT (0800AKDT) WEATHER: 6.5 m/s S  Snow, Rain, Freezing Rain
        Temperature -0.5 C, RH 97.5%, Pressure 993.5 mb, 
                   
BASE:   Pampoll up. 
	Shebop up

STATIONS:  Atl:  up  Sonics not installed 
	   Mau:  Up.                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK
      Florida is OK   
      Atlanta is  OK excedpt sonics. 
      Maui:  Wind direction off due to compass 
    

SONICS:	 Atlanta removed, Others OK

RADIOMETERS: OK  

T/RH:  OK.

LEVELS, COMPASS:  Levels OK  
                  Maui compass bad - spkes 

VOLTAGES: OK 

LEADS: A patch of open water by former Sara'a lake

WATER PONDS: About the same - mostly frozen over 10% open water in ponds

8/18/98 1600 - 8/19/98 1600 GMT


CURRENT (0800AKDT) WEATHER: Winds at 2m 5.0 m/s S  Periods of fog
        Temperature -1.5 C, RH 96.5%, Pressure 996.8 mb, 
                   
BASE:   Pampoll up. 
	Shebop up

STATIONS:  Atl:  up  Sonics not installed 
	   Mau:  Up.                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK
      Florida is OK   
      Atlanta is  OK excedpt sonics. 
      Maui:  Wind direction 90 deg too high due to compass 
    

SONICS:	 Atlanta removed, Others OK despite wet conditions

RADIOMETERS: OK  

T/RH:  OK.

LEVELS, COMPASS:  Levels OK  
                  Maui compass bad - spkes and 90 deg offset?

VOLTAGES: OK 

LEADS: Small open water area NE of ship.
       But very little open water in SHEAB area

WATER PONDS: Ice "skins" melting yesterday, freezing this morning

8/19/98 1600 - 8/20/98 1600 GMT


CURRENT (0800AKDT) WEATHER: Stormy, Winds at 2m 10.0 m/s E; Snow
        Temperature -0.2 C, RH 95%, Pressure 996.5 mb dropping like a rock 
                   
BASE:   Pampoll up. 
	Shebop up

STATIONS:  Atl:  up  Sonics not installed 
	   Mau:  Down .                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK
      Florida is OK   
      Atlanta is  OK excedpt sonics. 
      Maui:  none 
    

SONICS:	 Atlanta removed, Bal Fla OK 
RADIOMETERS: OK  

T/RH:  OK.

LEVELS, COMPASS:  Levels OK  
                  
VOLTAGES: OK 

LEADS: No major events
       

WATER PONDS: Filling in with blowing snow

8/19/98 1600 - 8/20/98 1200 GMT

CURRENT (0800AKDT) WEATHER: Still stormy, Winds at 2m 12.0 m/s E; Snow
        changed to freezing rain 1700 GMT yesterday then to rain at 2000 GMT
        raining now, fog, Temperature 0.6 C, RH 99%, Pressure 993.3 mb steady                 
BASE:   Pampoll went down at ~2000 GMT will re-start 
	Shebop up

STATIONS:  Atl:  up  Sonics not installed 
	   Mau:  Down .                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK
      Florida is OK   
      Atlanta is  OK excedpt sonics. 
      Maui:  none 
    

SONICS:	 Atlanta removed, Bal Fla OK
 
RADIOMETERS: OK  

T/RH:  OK.

LEVELS, COMPASS:  Levels OK  
                  
VOLTAGES: OK 

LEADS: No major events
       

WATER PONDS: Ice skims turning rotten.

NOTES: Storm conditions preventing re-start at Maui and Sonic repair at Atlanta

8/21/98 1600 - 8/22/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Storm over. Sun peeking out.
        Winds at 2m 4.5 m/s S Temperature -1.0 C, RH 96%, Pressure 1013 rising                 
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  Sonics not installed 
	   Mau:  up since 2330 GMT yesterday.                        
           Bal:  up
           Fla:  Up

DATA: 
      Baltimore is OK
      Florida is OK   
      Atlanta is  OK except sonics. 
      Maui:  OK except somtimes bad wind directions due to compass and flux 
              plate dead.  
    

SONICS:	 Atlanta removed, Bal, Maui some heating cycles yesterday none lately
 
RADIOMETERS: OK  

T/RH:  OK.

LEVELS, COMPASS:  Levels OK, Compass on Maui stll showing 90 deg offsets 
sometimes  
                  
VOLTAGES: OK 

LEADS: No major events, phew! (knock on wood)

RIDGES:  New Maui ridge amy still be active
       
WATER PONDS: Ice skims re-freeziing.

8/22/98 1600 - 8/23/98 1600 GMT

CURRENT (0800AKDT) WEATHER: High Overcast  Light winds , Temp -1 C   
                            Sunny yesterday mroing and part of afternoon
             
BASE:   Pampoll polling stopped last night - re-started
	Shebop up

STATIONS:  Atl:  up  Sonics not installed 
	   Mau:  up                       
           Bal:  up
           Fla:  Up

Because of lack of data over last few hours this report is abreviated.
 
LEADS: "Sara's" lake re-opened, about 50 - 200 m wide 

RIDGES:  None notices
       
WATER PONDS: Ice skims re-freeziing.

8/23/98 1600 - 8/24/98 1600 GMT

CURRENT (0800AKDT) WEATHER: High clouds, Winds light and variable.
        Temperature -3 C, RH 99%, Pressure 1010 mb
           
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  Sonics not installed 
	   Mau:  no data now, believe still up.                        
           Bal:  up
           Fla:  up
DATA: 
      Baltimore is OK
      Florida is OK   
      Atlanta is  OK except sonics. 
      Maui:  OK except somtimes bad wind directions due to compass and flux 
              plate dead.  
    

SONICS:	 Atlanta removed, Rest OK
 
RADIOMETERS: OK  

T/RH:  Gaps at Maui

LEVELS, COMPASS:  Levels OK, Compass on Maui stll showing 90 deg offsets 
sometimes  
                  
VOLTAGES: OK 

LEADS: No major events, Sara`s lake about 50 meters wide open water  

RIDGES:  Some minor ridge activity
       
WATER PONDS: Melt ponds 95% frozen over.  Many 3-6 cm thick ice

8/24/98 1600 - 8/25/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Overcast, Winds 3.4m/s E.
        Temperature -2 C, RH 99%, Pressure 1014 mb
           
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  up
           Fla:  up
DATA: 
      Baltimore is OK
      Florida is OK   
      Atlanta is  OK. 
      Maui:  OK except somtimes bad wind directions due to compass and flux 
              plate dead. No T/RH  
    

SONICS:	 All OK
 
RADIOMETERS: OK  

T/RH:  Maui not working

LEVELS, COMPASS:  Jump at Balt due to maintainence  
                 Atlanta seems to have 90 deg positive offset
                 Maui seems to have abut 30 deg offset 
                  
VOLTAGES: OK 

LEADS: Sara`s lake North of ship  

RIDGES:  None known
       
WATER PONDS: Fozen Melt ponds had some water on top last night.  Now re-freezing

NOTE:  Our main 20 m tower has a fatal short circuit that will require
       attention before these problems are addressed.  Polar bear around
       yesterday. 

8/24/98 1600 - 8/25/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Overcast, Winds 6 m/s ENE.
        Temperature -1.5 C, RH 98%, Pressure 1020 mb
           
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  up
           Fla:  up
DATA: 
      Baltimore is OK
      Florida is OK   
      Atlanta is  OK. 
      Maui:  OK except somtimes bad wind directions due to compass and flux 
              plate dead. No T/RH  
    

SONICS:	 All OK
 
RADIOMETERS: OK  

T/RH:  Maui not working

LEVELS  OK,

COMPASS:  Maui?
                  
VOLTAGES: OK 

LEADS: Sara`s lake closed. No major leads  

RIDGES:  None known
       
WATER PONDS: Freezing fast

8/26/98 1600 - 8/27/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Moatly clear ans sunny, coldest day since spring
        Winds 3 m/s NE.
        Temperature -5 C, RH 100%, Pressure 1020 mb
           
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  up
           Fla:  up
DATA: 
      RH on all stations suspiciously high
      Baltimore is OK
      Florida is OK   
      Atlanta is  OK. 
      Maui:  OK except T/RH  
    

SONICS:	 All OK  Atlanta sonic orietation changed but WD still too high by
         about 20 degrees
 
RADIOMETERS: OK  

T/RH:  Maui fuse replaced, worked for a few minutes then died again

LEVELS  OK except Maui Y component doesn't work when checked at site visit,

COMPASS:  Maui still way off?  
                  
VOLTAGES: OK 

LEADS: Sara`s lake closed. No major leads  

RIDGES:  None known
       
WATER PONDS: Freezing very fast 

8/27/98 1600 - 8/28/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Overcast, super-cooled fog earlier
        Winds 5 m/s W.
        Temperature -2 C, RH 100%, Pressure 1012 mb
           
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  up
           Fla:  up
DATA: 
      Still suspect RH too high, compares well with tower but I have doubts 
      about those also.  Suspect sensor degradation after long period of use 
      in high RH environment.  SPO replaced their RH sensors and got lower
      values. Other people may not agree with this assessment. 
      Baltimore is OK
      Florida is OK   
      Atlanta is  OK. 
      Maui:  problems  see below 
    

SONICS:	 Atlanta WD seems more consistent.  Maybe OK.
         Many heating cycles at all sites from 0300 - 1100 due to super-cooled
         fog.
         Maui appears to have sersious problem with v component, continues to 
         cycle.
 
RADIOMETERS: OK  

T/RH:  Maui down

LEVELS  OK except Maui Y component 

COMPASS:  Maui down  
                  
VOLTAGES: OK 

LEADS: Sara`s lake closed. No major leads  

RIDGES:  None known
       
WATER PONDS: Still freezing.  Thick enough to walk on (5-7 cm) in most places.
             Still thin towared Maui (due to ice movement?) 

8/28/98 1600 - 8/29/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Very foggy and wet
        Winds 0.5 m/s NW.
        Temperature -0.5 C, RH 100%, Pressure 1004.5 mb
           
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  up
           Fla:  up
DATA: 
      Baltimore some problems see below 
      Florida is OK   
      Atlanta is  OK. 
      Maui:  problems  see below 
    

SONICS:	 Atlanta WD seems more consistent.  Maybe OK.
         Maui heaters not working so water/ice causing problems
         Baltimore w component not working.  No heater cycles recently for
           unknown reason.  Maybe related to extreme wet conditions.
 
RADIOMETERS: Look OK but likely affected by extreme moisture 

T/RH:  Maui down

LEVELS  OK except Maui Y component 

COMPASS:  Maui down  
                  
VOLTAGES: OK 

LEADS: Sara`s lake closed. No major leads  

RIDGES:  None known
       
WATER PONDS: Ice covers and new snow wet amd melting 

8/29/98 1600 - 8/30/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Fog
        Winds 1.5 m/s W.
        Temperature -1.0 C, RH 100%, Pressure 1008.5 mb
           
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  up
           Fla:  up
DATA: 
      Baltimore OK
      Florida  OK   
      Atlanta   OK. 
      Maui:  problems  see below 
    

SONICS:	 All OK despite wet conditions
 
RADIOMETERS: Look OK 

T/RH:  Maui now down despite new T/RH probe

LEVELS  OK except Maui Y component 

COMPASS:  Maui removed 
                  
VOLTAGES: OK 

LEADS:  No major leads  

RIDGES:  Ridging still active at Maui
       
WATER PONDS: Not much change

8/30/98 1600 - 8/31/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Overcast
        Winds 4.5 m/s W.
        Temperature -2.0 C, RH 99-100%?, Pressure 1012.5 mb
           
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  up
           Fla:  up
DATA: 
      Baltimore OK
      Florida  OK   
      Atlanta   OK. 
      Maui:  looks OK  Repaired flux plate had some extreme values yesterday
             looks OK now  
    

SONICS:	 All OK 
 
RADIOMETERS: Look OK 

T/RH:  Maui now looks OK.  New probe showing what appear to be more realistic
       variations in RH.  I believe this is evidence of what I earlier 
       suspected was degradation of all the PAM RH sensors (and for that
       matter all the RH sensors on the main tower)  
 

LEVELS  OK except Maui Y component 

COMPASS:  Maui removed 
                  
VOLTAGES: OK 

LEADS:  No major leads  

RIDGES:  ??
       
WATER PONDS: Wet areas on top of thin ice now freezing

8/31/98 1600 - 9/1/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Overcast
        Light winds
                   
BASE:   Pampoll down  will re-boot
        Can't say much until we get data 

LEADS:  Lead between ship and Baltimore 

RIDGES:  ??
       
WATER PONDS: Freezing

9/1/98 1600 - 9/2/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Overcast, No fog
        Winds 2.5 m/s NNE.
        Temperature -3.5 C, RH 97%, Pressure 1014.0 mb
           
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  up
           Fla:  up
DATA: 
      Baltimore OK
      Florida  OK   
      Atlanta   OK. 
      Maui:  No T/RH plotted 
    

SONICS:	 All OK 
 
RADIOMETERS: Look OK 
 

LEVELS  OK except Maui Y  

COMPASS:  Maui removed 
                  
VOLTAGES: OK 

LEADS:  Large lead between ship and Baltimore
        Another right next (around) Maui  

RIDGES:  ??
       
WATER PONDS: Freezing fast, No open water except in active regions.
      
NOTE:  Maui has rotated at least 120 degrees.  The radiometers may not be 
       over new ice/water anymore.  Sonics now facing ship and pointing toward 
       open water.

9/2/98 1600 - 9/3/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Overcast/fog
        Winds 2.5 m/s NNE.
        Temperature -3.5 C, RH 97%, Pressure 1014.0 mb
           
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  up
           Fla:  up
DATA: 
      Baltimore OK
      Florida  OK   
      Atlanta   OK. 
      Maui:  OK
    

SONICS:	 All OK 
 
RADIOMETERS: Look OK 
 

LEVELS  OK except Maui Y  

COMPASS:  All OK new Maui compass looking good (yes Maui is rotating that fast.)
                 
VOLTAGES: OK 

LEADS:  Lead activity near all stations
        Maui is in one,
        Lead between ship and Baltimore
        Lead just on side away from ship at Fla and Atl.  

RIDGES:  Rafting around Maui
       
WATER PONDS This category will be dropped.  They are virtually all frozen on top
            and whatr is open will be called "leads"..
      
NOTE:  Maui and Baltmore performing "lead studies".  Keeping close eye on both.

9/3/98 1600 - 9/4/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Overcast/fog
        Winds 4.5 m/s NE.
        Temperature -2.0 C, RH 99%, Pressure 1019 mb
           
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  up?
           Fla:  up
DATA: 
      Baltimore Some gaps
      Florida  OK   
      Atlanta   OK. 
      Maui:  OK
    

SONICS:	 All OK 
 
RADIOMETERS: Look OK 
 

LEVELS  OK except Maui Y  

COMPASS:  All OK 
                 
VOLTAGES: OK 

LEADS:  Same as yesterday
          

RIDGES:  ?
       
WATER PONDS What ponds?

9/4/98 1600 - 9/5/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Overcast Clear periods last night,
        very light snow dusting 
        Winds 4.5 m/s NE.
        Temperature -4.5 C, RH 98%, Pressure 1019.8 mb
           
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  up  but radio link very spotty
           Fla:  up
DATA: 
      Baltimore gaps due radio link
      Florida  OK   
      Atlanta   OK. 
      Maui:  OK
    

SONICS:	 All OK  Some heater cycling just now 
 
RADIOMETERS: Look OK 
 
LEVELS  OK except Maui Y  

COMPASS:  All OK 
                 
VOLTAGES: OK 

LEADS:  Mostly closed          

RIDGES:  ?

9/4/98 1600 - 9/5/98 1600 GMT

The "real" daily log was erased by mistake.  There were no major problems 
( except this one ).

Dave
       
      

9/6/98 1600 - 9/7/98 1600 GMT

CURRENT (0800AKDT) WEATHER: Overcast Clear periods last night,
        very light snow dusting 
        Winds 2.5 m/s W.
        Temperature -2.0 C, RH 98%, Pressure 1016.4 mb
           
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  presumed up  but radio link not working
           Fla:  up
DATA: 
      Baltimore ?
      Florida  OK   
      Atlanta  OK. 
      Maui:    OK
    

SONICS:	 OK  heater not working at Baltimore
 
RADIOMETERS: Look OK 
 
LEVELS  OK except Maui Y  

COMPASS:  All OK 
                 
VOLTAGES: OK 

LEADS:  Mostly closed          

RIDGES:  ?

9/7/98 1600 - 9/8/98 1600 GMT

CURRENT (0800AKDT) WEATHER: High Overcast and patchy fog,
        Winds 2.5 m/s W.
        Temperature -3.5 C, RH 100%, Pressure 1019 mb         
BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  presumed up  but radio link not working
           Fla:  up
DATA: 
      Baltimore ?
      Florida  OK   
      Atlanta  OK. 
      Maui:    OK
    

SONICS:	 OK  heater not working at Baltimore
 
RADIOMETERS: Look OK 
 
LEVELS  OK except Maui Y  

COMPASS:  All OK 
                 
VOLTAGES: OK 

LEADS:  Mostly closed          

RIDGES:  ?

9/7/98 1600 - 9/8/98 1600 GMT

CURRENT (0845 AKDT) WEATHER: Overcast, Winds 3 m/s,
        Temperature 0.5 C, Pressure 1019.8 mb         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Mau:  up.                        
           Bal:  Radio link not working
           Fla:  up
DATA: 
      Baltimore: ?
      Florida:  OK   
      Atlanta:  OK. 
      Maui:    OK
    

SONICS:	 OK, Some heating cycles during yesterday's fog.

RADIOMETERS:  OK 
 
LEVELS:  OK

COMPASS:  All OK 
                 
VOLTAGES: OK 

LEADS:  Mostly closed, but plentiful open water north of Florida and
all around Maui from melt ponds.         

RIDGES:  No new ridges.

9/9/98 1600 - 9/10/98 1600 GMT

CURRENT (0730 AKDT) WEATHER: Thick overcast; Winds 3 m/s, westerly;
        Temperature -1.6 C; Pressure 1019.0 mb         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Maui:  up.                        
           Balt:  Radio link not working.
           Fla:  up
DATA: 
      Baltimore: ?
      Florida:  OK   
      Atlanta:  OK 
      Maui:    OK
    

SONICS:	 OK.  Atlanta wind direction looks rotated.

RADIOMETERS:  OK

TSOIL:  Above zero at Maui. 
 
LEVELS:  OK

COMPASS:  OK 
                 
VOLTAGES: OK 

LEADS:  Mostly closed, but plentiful open water north of Florida.

RIDGES:  No new ridges.

9/10/98 1600 - 9/11/98 1600 GMT

CURRENT (0755 AKDT) WEATHER:  Mostly clear; Winds 3 m/s, westerly;
        Temperature -7.2 C; Pressure 1020.0 mb         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Maui:  Up, but some sensors down following a bear visit.                       
           Balt:  Radio link worked only briefly on two occasions
           Fla:  up
           
DATA: 
      Baltimore: ?
      Florida:  OK   
      Atlanta:  OK 
      Maui:    Lost temperatures, humidity, and compass after 2130 GMT on
      		September 10.  Are there spares here?
    

SONICS:	 OK.  Some heating early morning (AKDT) of the 11th.  Direction off
	at Atlanta.

RADIOMETERS:  OK

TSOIL:  Above zero at Maui. 
 
LEVELS:  OK

COMPASS:  OK 
                 
VOLTAGES: OK 

MELT PONDS:  All melt ponds are ice covered.  Most have dusting of snow.

LEADS:  No new leads.

RIDGES:  No new ridges.

9/11/98 1600 - 9/12/98 1600 GMT

CURRENT (0755 AKDT) WEATHER:  Cloudy; Winds 4 m/s, southerly;
        Temperature -2.7 C; Pressure 1018.3 mb         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Maui:  up                       .
	   Balt:  Radio link working only sporadically and infrequently.
           Fla:  up
           
DATA: 
      Baltimore:  The data we do receive from Baltimore are suspect.
      Florida:  OK   
      Atlanta:  OK 
      Maui:  OK
    

SONICS:	 OK.  Some heating morning (AKDT) of the 11th.  Direction off
	at Atlanta.

RADIOMETERS:  OK

TSOIL:  All now negative since we repositioned Maui at snow-ice interface. 
 
LEVELS:  OK

COMPASS:  OK 
                 
VOLTAGES: OK 

MELT PONDS:  All melt ponds are ice covered.  Most have dusting of snow.

LEADS:  No new leads.

RIDGES:  No new ridges.

SURFACE:  A mottled mixture of bright white snow and dark or gray 
	refrozen melt ponds and leads.  This varied surface albedo is
	especially pronounced north of Florida and all around Maui.

9/12/98 1600 - 9/13/98 1600 GMT

CURRENT (0815 AKDT) WEATHER:  Cloudy; Winds 2 m/s, southwesterly;
        Temperature -2.6 C; Pressure 1020.9 mb         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Maui:  up                       .
	   Balt:  Radio link working only sporadically and infrequently.
           Fla:  up
           
DATA: 
      Baltimore:  Flashcard updated the data record.
      Florida:  OK   
      Atlanta:  OK 
      Maui:  OK
    

SONICS:	 Good

RADIOMETERS:  OK

TSOIL:  All OK, except Maui showed a few hours above 0 deg C although we
	repositioned sensor at snow-ice interface two days ago. 
 
LEVELS:  OK

COMPASS:  OK 
                 
VOLTAGES: OK 

MELT PONDS:  All melt ponds are ice covered.  Most have dusting of snow.

LEADS:  No new leads.

RIDGES:  No new ridges.

SURFACE:  A mottled mixture of bright white snow and dark or gray 
	refrozen melt ponds and leads.  This varied surface albedo is
	especially pronounced north of Florida and all around Maui.  The net
	radiation at Maui shows the sensors view of a refrozen lead.      

9/13/98 1600 - 9/14/98 1600 GMT

CURRENT (0815 AKDT) WEATHER:  Fog and heavy clouds; Winds light;
        Temperature -3.2 C; Pressure 1025.0 mb; mild riming         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Maui:  up                       .
	   Balt:  Radio link working only sporadically and infrequently.
           Fla:  up
           
DATA: 
      Baltimore:  Presumably OK
      Florida:  OK, periodic, short missing intervals.  Radio link?   
      Atlanta:  OK 
      Maui:  OK
    

SONICS:	 Good

RADIOMETERS:  All OK.  Maui still showing higher net radiation because of
	radiometers positioned over refrozen lead.

TSOIL:  OK, except Maui showed a few hours above 0 deg C.  It tracks
	the variations in temperature at the other stations, though. 
 
LEVELS:  OK

COMPASS:  OK 
                 
VOLTAGES: OK 

MELT PONDS:  All melt ponds are ice covered.  Most have dusting of snow.

LEADS:  No new leads.

RIDGES:  No new ridges.

SURFACE:  No real firming up with the mild temperatures of the last few days.
	Snow is white and bright, however.

9/13/98 1600 - 9/14/98 1600 GMT

CURRENT (0815 AKDT) WEATHER:  Fog and heavy clouds; Winds light;
        Temperature -3.2 C; Pressure 1025.0 mb; mild riming         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Maui:  up                       .
	   Balt:  Radio link working only sporadically and infrequently.
           Fla:  up
           
DATA: 
      Baltimore:  Presumably OK
      Florida:  OK, periodic, short missing intervals.  Radio link?   
      Atlanta:  OK 
      Maui:  OK
    

SONICS:	 Good

RADIOMETERS:  All OK.  Maui still showing higher net radiation because of
	radiometers positioned over refrozen lead.

TSOIL:  OK, except Maui showed a few hours above 0 deg C.  It tracks
	the variations in temperature at the other stations, though. 
 
LEVELS:  OK

COMPASS:  OK 
                 
VOLTAGES: OK 

MELT PONDS:  All melt ponds are ice covered.  Most have dusting of snow.

LEADS:  No new leads.

RIDGES:  No new ridges.

SURFACE:  No real firming up with the mild temperatures of the last few days.
	Snow is white and bright, however.

9/14/98 1600 - 9/15/98 1600 GMT

CURRENT (0810 AKDT) WEATHER:  Clouds; Wind 4 m/s, southeasterly;
        Temperature -3.8 C; Pressure 1026.1 mb         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Maui:  up                       .
	   Balt:  Radio link working only sporadically but more frequently
		than usual..
           Fla:  up, but atill small breaks in communication
           
DATA: 
      Baltimore:  Presumably OK
      Florida:  OK, periodic, short missing intervals.  
      Atlanta:  OK 
      Maui:  OK
    

SONICS:	 Some missing data; heater cycles last evening

RADIOMETERS:  All OK.

TSOIL:  OK, except Maui showed a few hours above 0 deg C. 
 
LEVELS:  OK

COMPASS:  OK 
                 
VOLTAGES: OK 

MELT PONDS:  All melt ponds are ice covered.  Most have dusting of snow.

LEADS:  No new leads.

RIDGES:  No new ridges.

9/15/98 1600 - 9/16/98 1600 GMT

CURRENT (0755 AKDT) WEATHER:  Partly cloudy; Wind 6 m/s, easterly;
        Temperature -9.5 C; Pressure 1017.8 mb; Wind chill -30 C         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Maui:  up                       .
	   Balt:  Radio link working only sporadically.
           Fla:  Up, but still small breaks in communication.
           
DATA: 
      Baltimore:  Presumably OK
      Florida:  OK, periodic, short missing intervals.  
      Atlanta:  OK 
      Maui:  OK
    
SONICS:	 Brief episode of missing data during heater cycles last evening.

RADIOMETERS:  OK

TSOIL:  OK 
 
LEVELS:  OK

COMPASS:  Among the three compasses, Atlanta, Maui, and Florida, the range
	in reported wind direction is 60 degrees.  I've taken new compass
	sitings.  How do I update those? 
                 
VOLTAGES: OK 

MELT PONDS:  All are ice covered.

LEADS:  From the bridge there seems to be a new lead just northeast of Maui.

RIDGES:  No new ridges.

9/16/98 1600 - 9/17/98 1600 GMT

CURRENT (0750 AKDT) WEATHER:  Cloudy, blowing snow, poor visibility;
	Wind 9 m/s, easterly; Temperature -6.2 C; Pressure 1016.2 mb;
	Wind chill -27 C         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Maui:  up                       .
	   Balt:  No communication in last 24 hours.
           Fla:  Up, but still small breaks in communication.
           
DATA:   Baltimore:  Unknown
	Florida:  OK, periodic, short missing intervals.  
	Atlanta:  OK 
	Maui:  OK
    
SONICS:	 Extensive episodes of missing data during heater cycles.

RADIOMETERS:  OK, though may be frosted late in the day yesterday.  Will check
	at Florida.

TSOIL:  OK 
 
LEVELS:  OK

COMPASS:  OK 
                 
VOLTAGES: OK 

MELT PONDS:  All are ice covered; now most have a dusting of snow

LEADS:  Lead just north of Maui has opened to 100 m with 50 m on far side open
	water.  Maui is right on the edge of this, but its sonic is facing the
	opposite direction.  In other words, winds coming across the lead to the
	station would come across the entire PAM station and into the back
	side of the sonic.

RIDGES:  No new ridges.

9/17/98 1600 - 9/18/98 1600 GMT

CURRENT (0730 AKDT) WEATHER:  Wild; cloudy; drifting snow, poor visibility;
	Wind 10 m/s, southeasterly; Temperature -0.2 C;
	Pressure dropping like a rock to 999.9 mb; everything is wet
	         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Small breaks in communication with all in last 24 hours.
	   Atl:  up  
	   Maui:  up                       .
	   Balt:  No communication in last 48 hours.
           Fla:  up
           
DATA:   Baltimore:  Unknown
	Florida:  OK 
	Atlanta:  OK 
	Maui:  OK
    
SONICS:	 Generally good; heating at Maui yesterday morning.

RADIOMETERS:  May have water droplets on them; we'll check at Florida

TSOIL:  OK 
 
LEVELS:  OK

COMPASS:  OK 
                 
VOLTAGES: OK 

MELT PONDS:  All covered with a dusting of snow

LEADS:  Lead just north of Maui remains open and may have widened.

RIDGES:  No new ridges.

SURFACE:  Many large, linear snowdrifts.  All melt ponds that were gray two
	days ago now are dirty white from the blowing snow.

9/18/98 1600 - 9/19/98 1600 GMT

CURRENT (0800 AKDT) WEATHER:  Even wilder; cloudy; drifting snow,
	poor visibility; Wind 12 m/s, easterly; Temperature -2.3 C;
	Pressure 994.5 mb; Wind chill -27 deg C
	         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Data gaps in all stations around 1300 AKDT.
	   Atl:  up  
	   Maui:  up                       .
	   Balt:  No communication in last 72 hours.
           Fla:  up
           
DATA:   Baltimore:  Unknown
	Florida:  Missing TRH and compass.
	Atlanta:  OK 
	Maui:  Missing TRH and compass and most sonic data.
    
SONICS:	 Florida:  Was transmitting despite the ice casing yesterday.
	 Atlanta:  Looking good
	 Maui:  Looking bad
	 Baltimore:  Looking but not seeing

RADIOMETERS:  Most are probably ice-covered.  Florida was severely iced 
	yesterday afternoon.

TSOIL:  Maui reading above 0 deg C.  
 
LEVELS:  Level y at Maui showed a step change yesterday morning.

COMPASS:  No record from Florida or Maui
                 
VOLTAGES: OK 

MELT PONDS:  All covered with a dusting of snow

LEADS:  Lead just north of Maui remains open. 

RIDGES:  No new ridges.

SURFACE:  Got a little darker yesterday as the high temperature and blowing
	snow wetted the surface and preferrentially reexposed the melt ponds.
	
SUMMARY:  The weather has us grounded for a third day.  We really need to get
out to find Baltimore because the ice has covered a lot of ground in the last
three days.  It may not be where we last saw it.  We can currently get
to Maui only by helicopter, too.  So the problems we are seeing there may not
get the attention they deserve either.  We crossed 80 deg North yesterday
evening.

9/19/98 1600 - 9/20/98 1600 GMT

CURRENT (0845 AKDT) WEATHER:  Cloudy; Wind 2 m/s, southerly;
	Temperature -3.4 C; Pressure 1001.4 mb
	         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Data gaps in all stations 1700-1800 AKDT.
	   Atl:  up  
	   Maui:  Up but see site Visit_Log.                      .
	   Balt:  No communication in last 4 days.
           Fla:  up
           
DATA:   Baltimore:  Unknown
	Florida:  TRH and compass not on station
	Atlanta:  OK 
	Maui:  Missing TRH, compass, and u sonic data.
    
SONICS:	 Florida:  OK
	 Atlanta:  OK
	 Maui:  Little or no u
	 Baltimore:  ?

RADIOMETERS:  OK

TSOIL:  Maui reading above 0 deg C because it was in water (See site Visit_Log.)
 
LEVELS:  Maui showed catastropic changes between 0200-0400 GMT Sept. 20

COMPASS:  No compass installed at Florida, so wind direction is off;
	no compass data from Maui.
                 
VOLTAGES: OK 

MELT PONDS:  Snow covered but slushy

LEADS:  Lead just north of Maui closed, but several-kilometer-long lead opened
	at northern boundary of floe; 1 km north of ship. 

RIDGES:  We saw from the bridge this morning that the lead at Maui, which
	was 100 m wide two days ago had closed and there was obvious ridging.
	The station configuration had obviously changed appearance.  See the
	site Visit_Log.

SURFACE:  Snow firmed up over night but was still slushy in the low spots, where
	seawater probably has infiltrated under the weight of the new snow.

9/20/98 1600 - 9/21/98 1600 GMT

CURRENT (0800 AKDT) WEATHER:  Cloudy; Light wind, 1 m/s, southeasterly;
	Temperature -4.8 C; Pressure 1006.7 mb
	         

BASE:   Pampoll up 
	Shebop up

STATIONS:  
	   Atl:  up  
	   Maui:  Decommisioned about 10:30 a.m. AKDT                     .
	   Balt:  Up, though no communication even with Yaggi antenna
	   Fla:  up
           
DATA:   Baltimore:  OK from flash card
	Florida:  OK
	Atlanta:  OK 
	Maui:  Missing TRH, compass; most others questionable in light of its
		final few tramatic hours
    
SONICS:	 Florida:  OK though brief heating about 1700 AKDT Sept. 20
	 Atlanta:  OK
	 Maui:  Questionable
	 Baltimore:  OK

RADIOMETERS:  OK

TSOIL:  OK
 
LEVELS:  OK

COMPASS:  OK
                 
VOLTAGES: OK 

MELT PONDS:  Snow covered but still obviously dark.

LEADS:  A variety of activity too changable to recount.

RIDGES:  None that impact us.

9/21/98 1600 - 9/22/98 1600 GMT

CURRENT (0800 AKDT) WEATHER:  High clouds, good visibility;
	Wind, 4 m/s, easterly; Temperature -6.1 C; Pressure 1002.9 mb
	         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  up  
	   Maui:  No more                     .
	   Balt:  Turned off at 17:30 GMT on the 21st.
	   Fla:  up
           
DATA:	Baltimore:  OK from flash card
	Florida:  OK
	Atlanta:  OK 
    
SONICS:	 OK

RADIOMETERS:  OK.  No obstructions at Florida, for example, yesterday
	afternoon.

TSOIL:  OK
 
LEVELS:  OK

COMPASS:  OK
                 
VOLTAGES: OK 

MELT PONDS:  Snow covered but still obviously dark.

LEADS:  No new ones near us.

RIDGES:  None that impact us.

9/22/98 1600 - 9/23/98 1600 GMT

CURRENT (0745 AKDT) WEATHER:  Cloudy, good visibility;
	Wind, 3 m/s, easterly; Temperature -8.0 C; Pressure 1014.8 mb
	         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  Probably up but stopped communicating 1400 GMT 
	   Maui:  No                     .
	   Balt:  No
	   Fla:  Up
           
DATA:	Florida:  OK, gap between 1500-1600 GMT.
	Atlanta:  OK, gap starting at 1400 GMT and continuing.
    
SONICS:	 Continuous heating cycles that are affecting the voltages and
	currents and ,evidently, the compass.

RADIOMETERS:  OK.

TSOIL:  OK
 
LEVELS:  OK

COMPASS:  Atlanta signal looks unusual, as if the sonic heating signal was
	affecting the compass reading.  Florida has some of that same
	quality, but it`s not quite as pronounced.
                 
VOLTAGES:  Lots of cycling, presumably caused by the sonic heaters. 

MELT PONDS:  Some have reappeared as darker spots with the warming and
	drifitng snow of a few days ago.

LEADS:  No new ones near us.

RIDGES:  No new ones that affect us.

9/23/98 1600 - 9/24/98 1600 GMT

CURRENT (0735 AKDT) WEATHER:  Cloudy, snowing;
	Wind, 2 m/s, northwesterly; Temperature -3.8 C; Pressure 1013.7 mb
	         

BASE:   Pampoll up 
	Shebop up

STATIONS:  Atl:  Up 
	   Fla:  Up
           
DATA:  Atlanta and Florida OK, but both have short episodes of missing data.
    
SONICS:	 OK, but both show sonics heating between 2000 GMT Sept 23 and 0500
	Sept 24.  

RADIOMETERS:  OK.

TSOIL:  OK.
 
LEVELS:  OK.

COMPASS:  Both stations have some unusual spikes.
                 
VOLTAGES:  OK.

LEADS:  No new ones near us.

RIDGES:  No new ones near us.

9/24/98 1600 - 9/25/98 1600 GMT

CURRENT (0740 AKDT) WEATHER:  Cloudy, good visibility; recent dusting of  snow;
	Wind, 2 m/s, northeasterly; Temperature -5.0 C; Pressure 1011.9 m.

BASE:   Pampoll up.
	Shebop up.

STATIONS:  Atl:  Up.
	   Fla:  Up.
           
DATA:  	Fla:  OK.
	Atl:  Data gap 0600-1200 GMT Sept. 25 and many frequent holes
		elsewhere.
    
SONICS:	 OK.

RADIOMETERS:  OK.

TSOIL:  OK.
 
LEVELS:  OK.

COMPASS:  OK.
                 
VOLTAGES:  OK.

MELT PONDS:  All have a snow cover but most still appear grayer than
	snow-covered, older sea ice.

LEADS:  No new ones near us.

RIDGES:  No new ones near us.

9/25/98 1600 - 9/26/98 1600 GMT

CURRENT (0745 AKDT) WEATHER:  Cloudy; recent dusting of  snow;
	Winds light; Temperature -7.0 C; Pressure 1011.0 mb.

BASE:   Pampoll up.
	Shebop up.

STATIONS:  Atl:  Up.
	   Fla:  No communication and presumably down at 0330 GMT on the 26th
	   (Actually, Scott and I verified this morning at 1800 GMT that it
	   was down.)
           
DATA:  	Fla:  No data since 0330 GMT.
	Atl:  Several big data gaps.
    
SONICS:	 OK, a few heating cycles.

RADIOMETERS:  OK.

TSOIL:  OK.
 
LEVELS:  OK.

COMPASS:  OK.
                 
VOLTAGES:  OK.

MELT PONDS:  Gray-white.

LEADS:  East-west lead 1 km north of the ship and 500 m north of Florida
	remains open and active (as it has seemingly forever) and, in fact,
	loops around north and 	northeast of Atlanta.
	
RIDGES:  No new ones near us.

9/26/98 1600 - 9/27/98 1600 GMT

CURRENT (0825 AKDT) WEATHER:  Cloudy; dusting of snow overnight;
	Wind 4 m/s; Temperature -9.0 C; Pressure 1009.1 mb.

BASE:   Pampoll up.
	Shebop up.

STATIONS:  Atl:  Up but communications infrequent.
	   Fla:  Mostly down.
           
DATA:  	Fla:  Only a few hours of data between down times.
	Atl:  Several big data gaps.
    
SONICS:	 Mostly missing.

RADIOMETERS:  OK.  While Florida was down on the 25th and 26, its radiometers
	collected a lot of ice.  After we turned it back on yesterday
	afternoon, the fans and heaters were able to clear the ice off the
	down-facing domes.  I cleaned the ice off the up-facing domes with
	alchohol yesterday evening--about 0215 GMT on the 27th.

TSOIL:  OK.
 
LEVELS:  OK.

COMPASS:  OK.
                 
VOLTAGES:  Florida is evidently not charging the battery.

MELT PONDS:  Gray-white.

LEADS:  East-west lead 1 km north of the ship and 500 m north of Florida
	now has looped around down the entire east side of the floe,
	passing roughly 100 m east of Atlanta.
	
RIDGES:  No new ones near us.

	Here is a summary of PAM site characteristics in September.  The date
refers to the date when I measured the angles for sonic orientation and
bearing.

			Altanta		Baltimore	Maui		Florida
				
Date			9/16/98		9/20/98		9/16/98		9/20/98

Snow depth (cm)		6		9		5		6

Approx. ice thickness	0.9		0.3		0.3		4
(m)

Bearing from ship	84		115		56		12
(deg true)

Range from ship (km)	1.5		10		1.1		0.47

Sonic type		Sym. Gill	ATI		ATI	      Asym. Gill

Disturbed sector in	-74, -167	-115		+170 to -170  -84 to -94
sonic coordinates (deg)

Sonic head-on angle	72		54		242		346
(deg  true)

Sonic height (m)	3.48		2.92		3.26		3.50

TRH intake height (m)	1.84		1.90		2.30		1.96

Down-looking radiometer	1.90		1.82		2.13		1.90
height (m)


ATLANTA:  Ridged ice, refrozen leads, melt ponds north and northeast;
smoother ice and melt ponds southeast, south, and west.

BALTIMORE:  Surrounded by ridged ice and refrozen leads; very broken all around.

MAUI:  Small floe; broken ice all around; refrozen, dark melt ponds and leads;
radiometers over new ice.

FLORIDA:  Sitting on a hummock higher than the surroundings; melt ponds, leads,
broken ice north and west; hummocks east; camp south.

9/27/98 1600 - 9/28/98 1600 GMT

CURRENT (0745 AKDT) WEATHER:  Cloudy; snowing and snow overnight;
	Wind 4 m/s, westerly; Temperature -7.6 C; Pressure 1006.5 mb.

BASE:   Pampoll up.
	Shebop up.

STATIONS:  Atl:  Presumable up but communications stopped at 1030 GMT on 28th
	   Fla:  Down.
	   
DATA:  	Fla:  Only 4 hours of data.
	Atl:  OK
    
SONICS:	 OK.

RADIOMETERS:  OK.

TRH:  Very intersting series of three cycles of high and low in TRH at Atlanta
	between 2200 on the 27 and 0900 GMT on the 28th.  Also show up in
	incoming longwave.  With only one station reporting, I don't know
	whether this was passing clouds or effects of the plume from the
	lead just east of Atlanta.

TSOIL:  OK.
 
LEVELS:  OK.

COMPASS:  OK.
                 
VOLTAGES:  Atl:  Declining before we lost it.
	   Fla:  Battery may not be charging.

LEADS:  East-west lead 1 km north of the ship and 500 m north of Florida
	has closed a bit.  Its extension north and east of Atlanta is still
	open.
	
RIDGES:  No new ones near us.

9/28/98 1600 - 9/29/98 1600 GMT

CURRENT (0650 AKDT) WEATHER:  Cloudy; snowing and snow overnight;
	Wind 5 m/s, northwesterly; Temperature -7.9 C; Pressure 1012.6 mb.

BASE:   Pampoll up.
	Shebop up.

STATIONS:  Atl:  Up.
	   Fla:  Up.
	   
DATA:  	Fla:  OK.
	Atl:  Two long gaps, one at start and one at end of period.
    
SONICS:	 OK, some heating cycles.

RADIOMETERS:  OK.

TRH:  OK.

TSOIL:  OK.
 
LEVELS:  OK.

COMPASS:  Generally OK, though some unusual spikes.
                 
VOLTAGES:  Atl:  Declining again during the night before we lost it.
	   Fla:  ?

LEADS:   About the same.
	
RIDGES:  No new ones near us.

SURFACE:  Beginning to see a lot of snow accumulation in low areas.  Hummocks
	tend to be scoured of snow.

9/29/98 1600 - 9/30/98 1600 GMT

CURRENT (0655 AKDT) WEATHER:  Cloudy; snow overnight;
	Wind 3 m/s, southerly; Temperature -11.4 C; Pressure 1016.1 mb;
	Wind chill -27 C.
	
BASE:   Pampoll up.
	Shebop up.

STATIONS:  Atl:  Up.
	   Fla:  Up.
	   
DATA:  	Fla:  OK.
	Atl:  Gap at end of period, starting 1030 GMT on the 30th.
    
SONICS:	 Generally OK; some heating cycles; Florida dubious last several hours
	of period

RADIOMETERS:  OK.

TRH:  OK.

TSOIL:  OK.
 
LEVELS:  OK.

COMPASS:  OK.
   
VOLTAGES:  Atl:  Declining again during the night before we lost it, again
		when it hit about 11.7 volts.
	   Fla:  OK.

LEADS:   About the same.
	
RIDGES:  No new ones near us.

Record of station hygrothermometer usage:

Station 1
Start			1/15/98	1040 AKST	#0004
1/15/98	1055 AKST	2/2/98	1200 AKST	#0006
2/9/98	1540 AKST	End			#0003
 
Station 2
Start			?			#0006?
12/27/97 1130 AKST	2/5/98	2030 AKST	#0005
4/6/98	1440 AKDT	End			#0006

Station 3
Start			12/24/97 1130 AKST	#0003
12/24/97 1130 AKST	1/13/98	1120 AKST	#0006
1/13/98	1140 AKST	3/30/98	1545 AKST	#0007
3/30/98 1610 AKST	5/25/98	1415 AKDT	#0001
5/25/98	1420 AKDT	End			#0005

Station 4
Start			12/31/97 1400 AKST	#0007
12/31/97 1440 AKST	1/7/98	2100 AKST	#0003
1/7/98	2110 AKST	1/13/98	0915 AKST	#0007
1/13/98	1820 AKST	1/15/98	0930 AKST	#0006
1/20/98	1545 AKST	2/2/98	0940 AKST	#0003
2/3/98	1320 AKST	2/25/98	1615 AKST	#0006
2/25/98	1620 AKST	5/11/98	1440 AKDT	#0005
5/11/98	1500 AKDT	End			#0007

Arranged by hygrothermometer:

#0001
3/30/98 1610 AKST	5/25/98	1415 AKDT	Stn 3

#0003
Start			12/24/97 1130 AKST	Stn 3
12/31/97 1440 AKST	1/7/98	2100 AKST	Stn 4
1/20/98	1545 AKST	2/2/98	0940 AKST	Stn 4
2/9/98	1540 AKST	End			Stn 1

#0004
Start			1/15/98	1040 AKST	Stn 1

#0005
12/27/97 1130 AKST	2/5/98	2030 AKST	Stn 2
2/25/98	1620 AKST	5/11/98	1440 AKDT	Stn 4
5/25/98	1420 AKDT	End			Stn 3

#0006
12/24/97 1130 AKST	1/13/98	1120 AKST	Stn 3
1/13/98	1820 AKST	1/15/98	0930 AKST	Stn 4
1/15/98	1055 AKST	2/2/98	1200 AKST	Stn 1
2/3/98	1320 AKST	2/25/98	1615 AKST	Stn 4
4/6/98	1440 AKDT	End			Stn 2

#0007
Start			12/31/97 1400 AKST	Stn 4
1/7/98	2110 AKST	1/13/98	0915 AKST	Stn 4
1/13/98	1140 AKST	3/30/98	1545 AKST	Stn 3
5/11/98	1500 AKDT	End			Stn 4

At 1310 AKDT, October 3, we swapped in hygrothermometer #0001
(case is labeled #0004) in place of #0003 (Station 1).

11-Feb-1999

Kurt looked at the ATI sonics returned from SHEBA and found the 
following:

Atlanta ATI was tagged S/N 980202 (ATI #1?) and the internal digital
serial number is also 980202.  This sonic was removed from Atlanta in
August because of a failed v axis.

Maui ATI was tagged S/N 980302 (ATI #2) but the internal digital serial
number is 980303.  This sonic was found to have a misaligned v axis.

Baltimore ATI was tagged S/N 980303 (ATI #3) but the internal digital
serial number is 980302.


From oncley@ale.atd.ucar.edu Tue Feb 16 16:15:13 1999
Subject: Re: ATI S/N
To: horst@atd.ucar.edu (Tom Horst)

> Steve:
> 
> I found a note with the SHEBA ATIs stating that S/Ns 980203 and 980202
> had been swapped.  Did you do this?  Did you swap the external labels
> or change the internal serial numbers?
> 
> Tom
> 
As far as I know, we received the ATIs with the serial numbers in ROM
not matching the labels on the boom for these 2 units.  I recall noticing
this before they were sent to SHEBA, but apparently forgot to do anything
about it.  Kurt noticed that they were still mismatched upon return,
so I (yesterday) changed the ROM values to correspond with the boom label.

Since these serial numbers do not appear in the data stream, I assume that
the labels on the boom were used by folks in SHEBA to identify the sensors.

...Steve

I have been reviewing and modifying the sonic orientation file
/net/pam/projects/SHEBA/sonics/orientation.dat.

I tested the orientations for Oct through early Jan by plotting wind
direction differences with Florida as the reference.  Data were used
only when sonic.samples exceeded 99.5% and I also clipped the differences
at +/- 50 deg.  A summary of the data follows:

Another Time Series (ats):
Observations: 25941  on 3 channels

       dir                  dir                   dir            
 Min.   :   -50.000   Min.   :-5.0000e+01   Min.   :   -50.000  
 1st Qu.:    -1.556   1st Qu.: 8.7790e-02   1st Qu.:    -1.861  
 Median :     2.209   Median : 3.3890e+00   Median :     3.980  
 Mean   :     1.464   Mean   : 2.7720e+00   Mean   :     2.330  
 3rd Qu.:     5.507   3rd Qu.: 6.0470e+00   3rd Qu.:     7.176  
 Max.   :    50.000   Max.   : 5.0000e+01   Max.   :    45.350  
 NA's   : 21287.000   NA's   : 2.1429e+04   NA's   : 22541.000  

Time Parameters :
                          start                            end   units deltat1 
 [1997 10 15 jd:288 000230.000] [1998 01 12 jd:012 235730.000] seconds 300.000
 
Looking at the absolute value of the median differences, 

Atl - Fla = 2.2 deg
Cle - Fla = 3.4 deg
Bal - Fla = 4.0 deg
Atl - Cle = 1.2 deg
Alt - Bal = 1.8 deg
Cle - Bal = 0.6 deg

Many of the Gill sonic "height" measurements in the logbook are actually
the height of the sonic boom.  According to logbook entry #659, the
center of the Gill sonic array is 60 cm above the center of the boom.

Kurt measured this distance in the laboratory and found it equal to 58 cm.

Sonic height measurements

   Station 1         Station 2         Station 3         Station 4
Date       ht(m)  Date       ht(m)  Date       ht(m)  Date       ht(m)		


97 10 16   3.46   97 10 16   3.46   97 10 16   3.45   97 10 23   3.48 
98 04 11   2.26   98 04 11   2.82   98 04 22   2.46   98 04 11   3.33 
98 04 17   2.26   98 04 18   3.45   98 05 15   2.34   98 04 21   3.20 
98 05 22   2.22   98 05 17   2.87   98 06 18   2.63   98 05 18   3.42 
98 06 12   2.39   98 06 12   3.02   98 06 30   2.68   98 06 08   3.47 
98 06 22   2.51   98 06 23   3.03   98 07 08   2.69   98 06 13   3.48 
98 07 06   2.77   98 07 07   3.12   98 07 30   2.97   98 07 29   3.51 
98 07 21   2.87   98 07 23   3.24   98 08 10   2.97   98 08 26   3.53 
98 08 03   2.92   98 07 30   3.23   98 08 24   2.93   98 09 08   3.51 
98 08 29   3.57   98 08 26   3.28   98 09 20   2.92   98 09 20   3.50 
98 09 16   3.48   98 09 16   3.26                     98 09 30   3.52 
98 09 30   3.31 

Added 0.58 m to heights of center of boom for Gill sonics

Following is a tabulation of the measured heights of the
hygrothermometer inlet.  In a few cases, the height of the
hygrothermometer boom was measured and I subtracted 42-43 cm
to get the height of the intake.

The existing measurements could be supplemented with the more
frequent measurements of the height of the sonic boom.  The 
hygrothermometer inlet appears to be nominally 1 m below the
sonic boom.  The variability in this difference is likely due
to the variability in the height of the surface below the two
booms.

Station 1	TRH intake	Sonic boom

10/15/97			2.88m
4/11/98				2.26m
4/17/98				2.26m
5/21/98		1.27m		2.22m
6/12/98		1.43m		2.39m
6/22/98		1.61m		2.51m
7/6/98				2.77m
7/21/98				2.87m
8/3/98				2.92m
8/29/98		1.87m		2.97m
9/16/98		1.84m		2.90m
9/30/98		1.69m		2.73m

Station 2

10/15/97			2.88m
4/11/98				2.82m
4/16/98				2.87m
5/16/98		1.81m		2.87m
6/12/98		2.04m		3.02m
6/23/98		1.92m		3.03m
7/7/98				3.12m
7/23/98				3.24m
7/30/98				3.23m
8/26/98		2.18m		3.28m
9/16/98		2.30m		3.26m


Station 3

10/15/97			2.87m
4/22/98				2.46m
5/15/98		1.43m		2.34m
6/18/98		1.71m		2.63m
6/29/98		1.80m		2.68m
7/9/98				2.69m
7/30/98				2.97m
8/10/98				2.97m
8/24/98		1.94m		2.93m
9/20/98		1.90m		2.92m

Station 4

10/23/97	1.73m		2.90m
4/11/98				2.75m
4/20/98				2.62m
5/16/98		1.88m		2.84m
6/8/98		1.87m		2.89m
6/13/98		1.86m		2.90m
7/29/98				2.93m
8/26/98		1.87m		2.95m
9/8/98		1.87m		2.93m
9/20/98		1.96m		2.92m
9/30/98		1.82m		2.94m


Assumed that center of Gill array is 58cm above center of boom.
Logbook 659 states that the TRH intake was 43cm below the center
of the TRH boom.
Logbook 675 states that the TRH intake was 42cm below the center
of the TRH boom.