CHATS: infrastructure Messages: 23 Entries..

climbed the tower today at about 10:30 to install flagging on the TRH booms
at 14, 18, 23m.  was off the tower by 10:45.

Lowered sonc array to 2,3 m position from 9:15 - 9:36, June 6.
Moved TRH's to lower positions, finishing at 10 am

Sonic boom heights on east = 2.94 and 1.93 m; on west = 2.95 & 3.95 m
TRH boom heights = 2.46 & 3.45 m.

Power to the ACD trailer, WSU shack and the tower died
during the night.  According to WSU's data it died
at 1:30 am local time.

The ISFF data systems and sensors continued to run - 12 V batteries kept 
things going (did not check their voltage).

Power to the main switch was OK, but no voltage at the breaker
panel.  Eventually found a blown fuse - one of the two fuses
on the black Dynatech (sp?) black box mounted on the inside of the
wall from the main power input.  It is a 30A slow-blow.
Kurt says the black box is a surge suppressor.

Replaced the fuse and brought everything back up, with the
exception of the CPC counter, which is disconnected.

Power draw at the transformer breaker box is now:

1 leftmost   ACD west + WSU small pump + WSU sys (14-17A)
2 next       30m tower (2A)
3 next:      WSU big pump (7A)
4 rightmost: ACD north + lights (12-14A)


circuits 1 & 2 are on one leg, and 3 & 4 are on the other.

Measured the draw on each leg:

1+2:  16-19A
3+4:  19-21A

Things were back up at about  11:00 with a full load (without CPC).

WSU requirements (120V):

big pump: 7A
little pump: 3A
other:  3A


The 120V breakers, from left to right, on the white transformer
(da big one) at the tower, control these circuits:

1 leftmost    ACD west (11-13A)
2 next       30m tower (2A)
3 next:      for WSU
4 rightmost: ACD north + lights + CPC(12A)

We put WSU's big pump on #3 (the one labeled WSU)
and added their small pump and systems to the ACD west circuit.

It ran for several hours, then died during the night, see subsequent
entry...

On June 2, from 9:10 - 9:28 we lowered the sonic array to mid-canopy.
The sonic booms are at
4.88 and 5.90 m on the east and
4.90 and 5.89 m on the west.

From 9:44 - 10:15 we moved the TRH's to mid-canopy, completing the 
configuration change.

13may07

Update 1jun07:   Rewired in 20A breaker for WSU when they come

	Main breaker in transformer distribution panel = 30A 240VAC
	leg1 = ~ 12.5@120ACD + ~2.5@120Tower	= 15A
	leg2 = ~ 11-14A@120ACD			= 14A

	leg2 will have WSU load, what ever that is.   It is on
	the 2nd 20A half of the breaker serving ACD's 'lights.'

	Built adaptor cable for an extension cable for them.
	Gordon, Tom know that their load needs to be measured
	and if significant, we prefer some be put on the 'leg1'
	distribution in the ACD trailer to balance the loads.
	Andreas' CPC can be taken down if capacity is needed

adn east and west at 0909LT. Systems halted as well.

Array narrowing procedure began at 0910LT. (Patton, Militzer, Poulos, Lenschow)
Hotfilms removed.
p' mounted on array in umbilical.
At or a few minutes after 1648LT first powered up east, west and hfarray.
Checked data_stats at 1700.
All look good (good data rates and all sensors present).
Rate of file growth is correct (heading for isff_ 4 hrly files of ~852Mb).

Plotting of raw data from array ...
Sonics - Look fine, 5 min avg, high-rate, spectra
Kryptons - ditto
Licors - ditto
T/RHs - T/RH.top fan is 'chattering' will eval tomorrow
p' - need longer second arm - will put up tomorrow after visit to hardware

Winds 'locked in' good wind direction ~ 1900LT and the array was up at that 
time (in place in 'high' position.

high.xml implemented, with new times and configs.xml updated. server ands
statsproc restarted.

6/3/07
Ned reports that a diagonal bar was placed on the horizontal array from the
head of sonic 5b to the yoke location of sonic 5t to reduce the sag of 
the lower horizontal line of sonics.

16-18LT 28 May array tensions measured, single turn of each turnbuckle and
after-turn-tensions.

Horizontal Array

West-array
   5/10/07	5/20/07   28 May     28 May	6/2/07
                          before     after
NW   400	310       300        450	420
SW   350	290       250        400	350
SE   300	240       220        340	320
NE   340	275       250        360	340

East-array
   5/10/07	5/20/07
NW   350	300       250        260	250
SW   300	260       210        250	230
SE   400	340       300        300	300
NE   420	340       300        310	290

Center-tower
   5/10/07	5/20/07
NW   310	280       240        260	230
SW   290	290       250        340	300
SE   290	250       230        230	220
NE   320	310       280        340	320

Vertical Tower
N guy wires
	lowest					450
	#2					420
	#3					400
	highest					475
SE guywires
	lowest					320
	#2					460
	#3					270
	highest					370
SW guywires
	lowest					390
	#2					260
	#3					320
	highest					320

Low-wide sonic boom azimuths were taken today and (below) sonic elevation angles
from theodolite. We also measured the p' sensor elevation and azimuth.

Array boom azimuths - low, wide position 28 May 1430-1515LT
Sonic    Don    Greg
-----   ------  ------
1b      359.3   358.9
2b      359.1   358.3
3b      358.3   359.3
4b      358.9   359.0
5b      358.5   359.0
6b      359.0   359.2
7b      359.7   359.5
8b      357.8   358.3
9b      358.5   359.1

1t      357.7   357.7
2t      358.0   358.5
3t      358.1   358.6
4t      357.3   357.2
5t      357.3   357.8
6t      357.3   356.8
7t      358.0   358.1
8t      357.7   357.1
9t      357.7   358.4 (HARD TO GET FROM ANY POSITION DUE TO BRANCHES)

Sonic boom elevation angles 1100-1330LT - low wide position
--------------------------- -----------
The theodolite was aligned carefully with boom 4b. It was placed where we could
see all of the sonics where the struts join the box (the box with the sloped 
faces, where these measurements were made last time). The theodolite was then 
brought to dead level (elev angle of 90 degrees). 
Height of theodolite in this position: 1.58m agl (measured twice).
Height on sonic/LiCor apparatus: 1.632m (metallic fastener, bottom)

(NOTE: This indicates a 5cm increase in the height of the ground at the
theodolite location relative to the earth immediately below the sonic. This is 
sensible be cause of the larger amount of walking activity at the sonic, and
we note pooling of water during sprinkling near the sonics.)

Distance from theodolite to the sonic centroid is: 9.842m 

(NOTE: We measured 10.3m north to vertical post on Licor mount post and 0.458m
back south to the sonic centroid. 10.3m was at the dead level position of the
theodolite targeted to the metallic piece on the sonic/Licor apparatus)

Based on additional measurement in the vertical of 0.318m to sonic centroid from
metallic piece at 1.632m)

Height of sonic 4b centroid as measured above local ground level: 1.95m

(NOTE: Based on earlier boom height measurements, logbook 291 and 52, this 
indicates sag of sonic boom 4b of 5cm [slightly more because we measured at
the strut-joining-box not out at the claws - one could project that distance])

Sonic    Bottom       Top      Azimuth   Height (calculate)
-----  ----------  ---------  ---------  --------
1b     88.20.21    88.07.18   154.23.29
2b     88.19.24    88.05.43   162.34.29
3b     88.25.07    88.10.54   171.46.39
4b     88.24.24    88.09.36   181.14.05
5b     88.19.37    88.05.08   190.59.19
6b     88.38.50    88.24.50   199.53.03
7b     88.52.20    88.39.31   208.00.33
8b     88.56.33    88.44.30   215.21.08
9b     88.55.27    88.44.00   221.30.18
TRH    88.18.11    86.45.59   187.17.57 (Bottom is bottom of inlet and top
                                         is top of inlet (at jctn to next piece)

1t     83.22.20    83.09.34   154.23.12
2t     83.00.18    82.46.42   162.28.39
3t     82.50.34    82.36.20   171.40.34
4t     82.46.26    82.31.46   181.12.30
5t     82.58.48    82.44.20   191.00.16
6t     83.14.38    83.00.54   200.00.23
7t     83.39.35    83.26.20   208.07.07
8t     84.05.07    83.53.09   215.23.04
9t     84.36.01    84.25.10   221.31.38
TRH    83.18.54    81.47.21   187.17.45

p' sensor, low, wide near 4b
Elevation 85.35.14 at center
Azimuth 181.18.26

Greg has hardcopy notes of this activity if there seem to be errors in this
table. Table entries checked over as entered but not from scratch a second
time.

Starting at 15:50LT the array was lowered from the middle to low position.
Lowering was completed and the site departed at 19:05LT.

ttyS13 LiCor cable (east 6b) had to be re-jiggered (taped) after an 'incident'.

Branch cut at sonic.5b (would hit with westerly).

Batteries were beeping after running lights. Being recharged.

Measurements using the new tape (with its clip at zero)

Array heights (agl m)
-------------
Central tower
-------------
T/RH top  3.435
Top sonic boom 2.90
T/RH bot  2.46
Bottom sonic boom 1.935

---------------
West array half
---------------
East part - top sonic boom - 2.95 (3.0 at sonic)
East part - bot sonic boom - 1.95 (2.0 at sonic)
West part - top sonic boom - same
West part - bot sonic boom - same
---------------
East array half
---------------
As above

In order to expedite array lowering to the 'low' position planned for late
Thursday (> 12 hours after the pesticide spraying on Wed night but before or 
just as the winds turn favorable south) we will lower the instruments on the 
central tower of the array. This is the most time consuming part of the process
and therefore, we believe, provide more data at the 'low' position during 
favorable flow. 

The ability to filter winds at the current configuration (mid height) will be
sacrificed therefore for the period late Wed - late Thurs, but the winds are
forecast to be unfavorable during this period.

If the weather forecast alters we may alter our plan. 

Completed 23 May 16:30-18:30LT.

21may07  Guy Wire Tensions from yesterday,


Notes:	5/10/07 readings taken after tightening 2-turns
	5/20/07 readings taken in afternoon,
		DID WARM DAY EFFECT CABLE TENSIONS?
		From plots/time it was roughly 8-degC warmer or more

//----------------------------------------
30m Tower:
( 1 = inner/lowest : 4 = outer/high-line )
SW           
   5/10/07	5/20/07
1:   590          450
2:   425          300
3:   510          330
4:   390          330
SE
   5/10/07	5/20/07
1:   510	  400
2:   650	  500
3:   350	  300
4:   450	  400

North
   5/10/07	5/20/07
1:   725	  550
2:   575	  460
3:   480	  410
4:   575	  510

//-----------------------------------------
Horizontal Array

West-array
   5/10/07	5/20/07
NW   400	310
SW   350	290
SE   300	240
NE   340	275

East-array
   5/10/07	5/20/07
NW   350	300
SW   300	260
SE   400	340
NE   420	340

Center-tower
   5/10/07	5/20/07
NW   310	280
SW   290	290
SE   290	250
NE   320	310

18may07 11:40-12:30

Array climbed, both sides, to take vertical boom measurements and some
of the students on the tour wanted to get a view of the
canopy.

17may07 9:10 - 9:50  Tower Climbed

Scintillometer:
Dawit and Anirban (Jan's students) went up to tweak gain/resolution

Commencing at ~0915LT the array (hfarray halted at 0909LT) was lowered to 
it's middle position where
the 'bottom' and 'top' sonics are at 4.9m and 5.9m, respectively. The hotfilms
TRHs and p' sensor were moved as well on the central tower (along with the 
central tower sonics, of course).

We were off the array with everything in position as of 1347LT..

Branches were cut near some of the sonics in this position to avoid direct
contact with the sonic/Licor/krypton.

The hfarray disk (ptec#7) was switched out for a different Pocketec as it 
was 50% full. The newly installed pocketec did not come up as /var/tmp/usbdisk
and so see the other hotfilm logbook entry today.

Central Tower new heights:
Csat-5bot = 4.90m
Trh-5bot  = 5.41m
Csat-5top = 5.85m
Trh-5top  = 6.40m

West Array new heights (need tbd)
Csat-1bot = 4.90m
Csat-1top = 5.90m
Csat-4bot = 4.90m
Csat-4top = 5.90m

East Array new heights
Csat-6bot = 4.91m-
Csat-6top = 5.90m
Csat-9bot = 4.91m-
Csat-9top = 5.90m

13may07

ACD loads:
	~ 7.5A @120, leg with lights, etc.
	~10.5A @120, leg with Alex's big load + CPC on tower (~100w)
	Andy said this is very close to everything.

	Update 30may07 for ACD loads:
	~ 12.5 @120
	~ 11-14A @120
	So these are under the requested 20A*2,
	however, for WSU who requested 20A also there could
	be some compromises needed.
	Andreas' CPC load can apparently be removed if needed.

Tower DC:
	13.5 at Power Supply charging/running daq
	12.7 at battery going to boxes
	12.3 into upper's main
	11.7 into lower's main
	11.5 at bulkhead going to ttyS10 (cpc sio only)

	These are low, and I wonder just how low they are at height.
	Too much IR drop.
	Also note that while working on the tower I noticed the lowest
	trh fan 'sagged' noticably for a short period.
	This only happened twice that was observed and since AndyT.
	was there I decided to blame his ACD loads, but......
	could this be and issue with trh quality due to occassional
	insufficient aspiration.

Work on array began 1510LT (ropes, reviewing process of lowering etc.), with
climbing for pins etc. before actual lowering.
West was lowered 1600-1620LT, back up 1700LT.
East was lowered 1710-1730LT, back up 1825LT.
Finished up by 1830LT.

The heights of the array:
West - west 9.61, 10.61, east 9.61, 10.61 (meters)
East - west 9.61, 10.61, east 9.62, 10.62 (meters)

Note: 0.01 m is within the elevation variability of the soil surface.

North Tower:

( 1 = inner : 4 = outer )
Values shown in parenthesis are after taking up 2-full-turns on
every turn-buckle.   Tower looks plumb.
SW lines              SE Lines           N lines

1: 410 (590)          320 (510)          480 (725)
2: 275 (425)          460 (650)          400 (575)
3: 330 (510)          260 (350)          400 (480)
4: 285 (390)          330 (450)          420 (575)

//---------------------------------------------------------------------->>

Horizontal Array

       West                East           Center
NW     400                 350             310
SW     350                 300             290
SE     300                 400             290
NE     340                 420             320

Data from GPS Measurements of the location of trees, trailer, road
intersections, sodar, etc from CHATS are available at:

  http://www.mmm.ucar.edu/abl/chats/data_gps/

the data are in the following formats (using 070408 as an example):

   10326160 Apr 15 22:54 chats_070408.zip     % zip file with raw and processed data
      64139 Apr 16 14:21 point_ge_070408.html % webpage with processed data
     111991 Apr 16 14:35 point_ge_070408.pdf  % pdf with processed data
      55296 Apr 15 13:50 point_ge_070408.xls  % excel file with processed data

a plot with the GPS data overlaid on a photo of the area is available
as:

  http://www.mmm.ucar.edu/abl/chats/data_gps/chats_overview_map.png
  http://www.mmm.ucar.edu/abl/chats/data_gps/chats_map_zoomin.png



=================================================================================

North Tower:

( 1 = inner : 4 = outer )
SW lines              SE Lines           N lines

1: 475                375                550
2: 300                475                450
3: 400                325                475
4: 325                350                475

//---------------------------------------------------------------------->>

Horizontal Array

       West                East           Center
NW     450                 425             400
SW     425                 400             375
SE     375                 500             400
NE     375                 500             425

comments:
wires labeled 1 thru 4 go from inner to outer for 30m tower

30 meter
date	3/6/07		3/29/07
			northly winds
SW-4	390		320
3	440		400	
2	390		310
1	575		500

N-4	560		500
3	560		525
2	550		490
1	690		600

SE-4	440		400
3	400		350
2	600		500
1	455		400

Horizontal west
NW			510
SW			450
SE			400
NE			450

Horizontal East
NW			400
SW			350
SE			480
NE			500

Center
NW			450
SW			400
SE			450
NE			470

Kurt received the power cable for the towers on Thursday, March 15, and buried 
it on Friday.  Today he wired up the transformers and we are now charging the 
12 V batteries with line power.  All four adams are up and running.