IHOP02: Logbook Entries

IHOP02: Site 8 Messages, 29 Entries..

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Entry Date Title Site Author #Graphics
319 Tue 30-Jul-2002Site 8 visit, May 318delany
311 Wed 26-Jun-2002Site 8 Visit: Final Trime sample8militzer
299 Sun 23-Jun-2002Site 8 Visit: sdr swapped, goes note8militzer
278 Fri 21-Jun-2002Site 8 visit, 6/208semmer
254 Sun 16-Jun-2002co2 signals8oncley
247 Sat 15-Jun-2002Site 8 visit8delany
231 Mon 10-Jun-2002Site 8 visit8delany
229 Sun 09-Jun-2002Site 8 visit8delany
221 Sat 08-Jun-2002Site 8 visit8oncley
200 Thu 06-Jun-2002Site 8 visit8oncley
189 Tue 04-Jun-2002Site 8 visit8delany
162 Wed 29-May-2002Site 8 visit8oncley
128 Sat 25-May-2002Site 8 visit, May 168horst
119 Thu 23-May-2002Restarted sonic at station 88horst
108 Tue 21-May-2002Site 8 visit8horst
102 Mon 20-May-2002Replaced net radiometer at site 88horst
101 Mon 20-May-2002Site 8 visit8horst
86 Thu 16-May-2002Checked Soil profile connections at 88maclean
85 Thu 16-May-2002Swapped microdrive (again) at station 88maclean
84 Thu 16-May-2002Procedure to swap microdrive in SDR 8maclean
83 Thu 16-May-2002CO2 statistics8maclean
82 Thu 16-May-2002Changed microdrive at stn 88maclean
81 Thu 16-May-2002GOES at 88maclean
80 Thu 16-May-2002barometer at stn88maclean
79 Thu 16-May-2002Site 8 visit8maclean
55 Sun 12-May-2002Added earth ground to soil profile multiplexer8horst
54 Sun 12-May-2002Fixed KH2O at station 88horst
38 Tue 07-May-2002site 8 setup8semmer
21 Thu 25-Apr-2002CR10X coefficients for station 88maclean


319: Site_visit, Site 8, Tue 30-Jul-2002 10:11:34 MDT, Site 8 visit, May 31
Logbook entry made post project using information from my paper logbook.

Arrived site 8 at 16:50
Mast down at 17:02
Replaced bearing assembly of propvane at site 8 with the bearing assembly of 
the spare. Kept same vertical assembly and prop.

Bad fan of LW.out replaced with equivalent 7 bladed Nidec

17:43 microcard swap, 5 out, 2 in.

CO2 tanks from the west
2000/8
capped
2150/8
650/4.5 Nitrogen
2000/8.5




311: Site_visit, Site 8, Wed 26-Jun-2002 08:26:26 CDT, Site 8 Visit: Final Trime sample
06/25/02  16:50-17:00 Local

Purpose: Final Trime Soil Measurement.

Trime measurements
ISFF	17.6(33), 17.5(33), 17.6(34), 17.6(33)
P2	19.6(35), 20.0(36), 19.8(35), 19.9(35)












299: Site_visit, Site 8, Sun 23-Jun-2002 18:25:17 CDT, Site 8 Visit: sdr swapped, goes note
06/23/02 14:15-14:40 Local

SDR swapped 19:23z: #1 out, #4 in

GOES note: Just like at st7 the power plug was loose in
	the socket, no doubt due to opening the door.
	Although the cable is plenty long, it has a shield
	on it which again was apparently enough to cause the
	plug to unseat.  Fortunately this time it did cause
	an outage although perhaps this may have something to
	do with our occassional dropouts because if the xmtr
	sees a voltage drop when it powers up, it cancels the
	message.
	This has now been a problem at st1,7,8 ....



278: Site_visit, Site 8, Fri 21-Jun-2002 07:32:05 CDT, Site 8 visit, 6/20
  On my way to 7 I stopped by 8 to see if we had any mice in the
rain guage. There was a nest but no one living there.



254: CO2, Site 8, Sun 16-Jun-2002 14:33:07 CDT, co2 signals
I've taken a peek at high-rate data from co2mr.s8.  Power spectra show the
noise level (assuming that the default calibration's gain is close) of only
0.1ppmV.  However, even close to local noon on a sunny day (6/14 16-17Z), the
signal-to-noise level is about 1 only at 0.2 Hz.  Furthermore, the cospectra
show no appreciable signal above about 0.02 Hz (though I might have made a
mistake accounting for the ~1s phase lag I calculated a few days ago).


247: Site_visit, Site 8, Sat 15-Jun-2002 15:38:34 CDT, Site 8 visit
Walked in
Arrived 11:07
CO2 cal gases:              Note that the pressures are not decreasing
          8/4    1860/8.3
          capped
          8/3    2070/8.6
 355.8           1890/8.8
          N2     1810/4.0

11:10 Cleaned Kr
11:12 Cleaned radiometer domes, checked netrad level
logger mode 99 "1"

Sun Shadow tests - captured data to s8l.020615

11:20 Finished tests, set logger mode 99 "0"

Copied /card

11:22 removed microdrive disc #5 and installed #1

Departed 11:28




231: Site_visit, Site 8, Mon 10-Jun-2002 18:50:10 CDT, Site 8 visit
Arrived 15:45

Entered the correct coefficients for Kr 1391

Departed 15:50
229: Site_visit, Site 8, Sun 09-Jun-2002 18:55:29 CDT, Site 8 visit
Arrived 15:41

CO2 cal gas pressures. Note the pressures are only decreasing very slowly.
           8/4  1940/8
           8/1  capped
           8/3  2090/8.3
   355.8        1930/8.7
           N2   2260/4.5

Set GOES transmission time by GPS. Was 4 sec off before correcting.

Dropped mast and mounted the three Kr heads below sonic. 

To test the kryptons, we first mounted each of the 3 krypton boxes (by 
climbing).  Then, we dropped the tower and mounted all 3 Kr heads near the 
sonic.  We raised the mast and took more data through various boxes.  Finally,
we dropped the mast to recover the 1393 & 1394 heads and raised the mast again.
Data were viewed locally using "fastsave" (after waiting 7-9 min :( )

The various combinations:
Head	Box	h2o	w'h2o'	h2o'h2o'
1391	1391	17.51	0.022	0.024
1391	1393	18.78	0.034	0.043
1391	1394	19.69	0.028	0.087
1393	1391	19.33	0.046	0.080
1394	1391	19.83	0.026	0.068
1394	1393	19.73	0.016	0.025
1393	1393	19.03	0.018	0.032
Done at 17:10

What I was expecting was near 0 w'h2o' using either 1393,1394 head or their
boxes.  These results don't make sense -- perhaps we got to this site too
late to have good fluxes.

To work with these data further, I swapped SDR 5 -> 2.

Final mast erection at 17:23

Departed at 17:30 

221: Site_visit, Site 8, Sat 08-Jun-2002 23:16:07 CDT, Site 8 visit
[A series of visits to isolate problem with krypton fluxes;
s8 visit to swap kryptons; also calibrate PIR]
Arrive: 1402
- pressure line not connected at bottom of EVE box -- reattached
- dropped mast at 1410
- exchanged krypton box and head (1393 removed, 1391 from s7 installed)
- cleaned krypton at 1430 (150 -> 180mV)
- clean radiometers; shading tests 1410-1420, not clear sky
  captured to s8l.020608
- raised mast 1435
- N2 2380/4.0
- SDR 2 -> 5
- copied /card
Depart: 1453

NOTE: Forgot to change krypton calibration file -- station is still using
1393 coefficients (but good enough for this series of tests?)




200: Site_visit, Site 8, Thu 06-Jun-2002 10:55:24 CDT, Site 8 visit
[This typed in 6 Jun for stuff done 5 Jun since I was too soggy yesterday.]

Peggy Lemone and Fei Chen visited yesterday.  I took them to sites 7,9,8 while
I rehung krypton electronics (which were cleaned up and had new 6-pin connectors
installed in the trailer) in plastic boxes and downloaded /card.  All of these
were serviced by climbing -- the towers were not dropped.

It was raining during all of these visits, so all kryptons were wet.  All 
krypton signals were only ~30mV -- hopefully they will recover.

I intended to do the logger power rewiring at s7 and s9, but forgot to bring
power cables :(

Approximate times were:
s7: 1340-1420 (drove in -- Peggy walked)
s9: 1530-1600 (started to drive in, got stuck in the mud!)
s8: 1630-1700 (walked in) had error downloading /card; DID NOT GRAB SDR



189: Site_visit, Site 8, Tue 04-Jun-2002 18:15:43 CDT, Site 8 visit
Arrived 11:50

Dragged fresh N2 gas cylinder to cache and replaced existing cylinder at 12:00
From the west
    8/4  1890 psi/ 8.5 psi
    8/1  capped
    8/3  2050 psi/ 8.5 psi
    orig N2 320 psi/ 5 psi, new N2 2500 psi/ 5 psi
    355.8 ppmv 1890 psi/ 9 psi

Ventilator fans all operating. Disconnected power at Campbell.

Swapped SDR #2 => #5

Downloaded /card

Dropped mast, removed Kr 1393 electronics and took to Base. Tested plastic box
Kr containment.
Mast up at 12:35, departed.



162: Site_visit, Site 8, Wed 29-May-2002 23:28:05 CDT, Site 8 visit
We also hit s8 today, after s7 (approx 1600-1840) and did lots of things:
- We discovered the ventilator fan on LW.out was dead. Checked it was fan and 
  not the power by swapping power with LW.in.
- We checked the gas cylinder pressures of Scott's CO2 system
    In order from the west (could not view all writing on cylinders):
       Site 8/4, 415.1 ppmv        2000 psi/8 psi
       Site 8/1,                    capped
       Site 8/3                    2150 psi/8 psi
       Nitrogen                     850 psi/4.5 psi
       Site 8/2, 355.8  ppmv       2000 psi/8 psi

- We lowered the mast about 1700-1830.  During this time, we:
	- cleaned the krypton
	- noted that the prop was stuck with dirty bearings.  We unscrewed the
	  prop end and sprayed with contact cleaner which got the shaft running
	  much better, though there still is a grinding noise
	- examined the Y junction in the S-bus cable and decided it was okay.
          We taped most of the holes with duct tape anyway.
- We disconnected power to the GOES transmitter and left it off.  (After 
  verifying that the A/D problem still was present, though only about 70 
  counts here.)
- We tightened all the CR10x screws -- some were loose.
- We tightened all the screws in the soil profile box -- many weren't tight.
  (after labeling the Echo probe wires, so we could put it back together)
- We disconnected 229 heating for a while to see if heating is causing the
  noise.  This was a bad test, I think, since the 229 output went offscale
  and became 9999.  (I don't understand why!)
- We connected all the 229 shields directly to power supply ground.
- We downloaded /card (twice!) (to examine the 229 data)
- We swapped the microdrive disk (replaced 2 with 5)

Tony found a tick crawling on the Eve box. Steve killed it.

Upon returning to the base, we did a "save_metppf" to get the data to Boulder.
This script died during the rsync to linus, so I repeated the last 2 steps
manually from ASTER.

P.S. The data seem to show no effect of the shield wire change or the screw
tightening efforts.

For next visit we need to take a radiometer ventilator fan and a propvane


128: Site_visit, Site 8, Sat 25-May-2002 12:09:10 CDT, Site 8 visit, May 16
TWH extracted the following from Josh Uebelherr and Joseph Alfieri
email recieved 5/25/02

7) Site 8: 5/16/02
Arrival: 14:05
Departure: 1600
Conditions: heavy overcast, very light SE breeze, moderate rain fell
for about ten minutes around 1535

-IR surface temperature distribution with vegetation height taken in
field of view of Site 8 flux station IR temperature sensor just outside
of cow fencer (about 3m north of fencer)

-Site 8 radiometers cleaned at 1449, some debris accumulated prior
to cleaning.  ***Top dome of net radiometer had small crack on lower
edge at '2 o'clock' orientation for observer facing north***

-Swapped storage card #5 for storage card #1 (also marked 04/02) and
delivered to ISSF trailer

-Gravimetric soil core taken at 1530

-2 land surface characterization transects selected

(i) Western transect begins approximately 30m west of radiometer
instrumentation and extends for 20m - beginning and end of transect
marked with blue flags

(ii) Southern transect begins approximately 20m south of radiometer
instrumentation and extends for 20m - beginning and end of transect
marked with blue flags

- Photographs in the cardinal directions, selected vegetation, and
transects taken.

- Trime measurements taken next to the soil profiler and where the core
sample was collected.


119: Sonics, Site 8, Thu 23-May-2002 16:12:47 CDT, Restarted sonic at station 8
The sonic at station 8 stopped at 0150 GMT, May 23.  Gordon and I went to
the site and restarted the sonic by recyling power at 1935 GMT.
108: Site_visit, Site 8, Tue 21-May-2002 16:38:06 CDT, Site 8 visit
Tom visted site 8 1400 - 1455 CDT, May 21

Took site photographs.  First took two pictures of site from SE, then
two consecutive series of photos from next to the tripod at 45 degree 
azimuth intervals, starting from North and proceeding clockwise 
through E,S,W,N.






102: Radiation, Site 8, Mon 20-May-2002 09:20:51 CDT, Replaced net radiometer at site 8
Replaced net radiometer Q91096 (cracked upper dome) with Q97034
(s/n from box, forgot to read it on sensor).  Changed logger
coefficients from (8.57,10.53) to (9.21,11.37) per calibration
values on new radiometer.

Note (7/23/02): Checked net radiometer coefficients and found that
(9.21,11.37) correspond to Q97034.  TWH

101: Site_visit, Site 8, Mon 20-May-2002 09:16:05 CDT, Site 8 visit
Tom visted site 8 5:15 - 7:05 pm CDT, May 19.

Replaced net radiometer, set GOES clock, downloaded (slow) local 
data storage. 

Measured multiplexer and CR10 supply voltages: 11.6 V






86: Soil, Site 8, Thu 16-May-2002 14:15:22 MDT, Checked Soil profile connections at 8
We checked the connections from the CONXALL connector inside the
logger and soil profile multiplexer boxes.

Multiplexer: all connections from CONXALL were OK.
   Measured  less than 1mV between ground and AG.

Logger: looked OK.  Saw 11.5 V at power connector. Is this sufficient?
  Also measured < 1mV between ground and AG.  





85: EVE, Site 8, Thu 16-May-2002 14:10:01 MDT, Swapped microdrive (again) at station 8
To be sure new SDR configuration is working, we swapped microdrives
at 8.  Josh was out there and did it for us:

Removed #1, inserted #5.




84: EVE, Site 8, Thu 16-May-2002 13:35:28 MDT, Procedure to swap microdrive in SDR

The SDR (serial data recorder) is in the EVE VME cage, the card
with a yellow button and 4 LEDs:

top LED: fault
         received data
         recording
bottom:  power

Eject button is right above the microdrive.

When you arrive, the power and recording lights should be solid on,
and the received data flickering.

1. Press the yellow button, recording light should go out.  
2. Press black eject button. Remove microdrive
3. Insert empty microdrive until eject button is flush with side of
   card. Note number (1-6) of microdrive.
4. Press yellow button. Recording light should go on <-- important.
5. Close and secure the EVE door. Don't pinch any cables
   when you close it.
 

That's it!  You've done your work for today.  Drive 200 miles back
to Wichita.

If you have the panasonic notebook, you can check the contents of
the drive you removed:

  put microdrive in PCMCIA adaptor
  insert adaptor in either PCMCIA slot
  do the following from a shell window
	mount /mnt/pccard
	ls -l /mnt/pccard
	umount /mnt/pccard




          







83: CO2, Site 8, Thu 16-May-2002 13:20:46 MDT, CO2 statistics

From EVE menu, displayed the FASTSAVE message to see the CO2 statistics:

co2mr:		 454.6
u'co2mr':	 -0.283
v'co2mr': 	0.06577
w'co2mr':	 0.01845
co2mr'co2mr':	 2.511

Saw exactly these same values in the netcdf file for May 15 17:27:30 CDT.

So it appears the statistics are being sent over GOES correctly.


82: EVE, Site 8, Thu 16-May-2002 13:10:14 MDT, Changed microdrive at stn 8
Swapped microdrives at 8.

Removed #6 XHA78295 99B
Inserted #1 XHAV9598 09D

Left #5 (XHA76012 99B) in eve box.  It is empty and ready to use.

File sizes at site 8:  14.1 Mbyte/8 hours =  42.3 Mbyte/day

This is like station 1 (see entry #71), a 358 Mbyte
microdrive should take a week's data.

See entry #80 about the barometer & SDR. The SDR at station 8 is
not being commanded from EVE and will be doing its own file
opening/closing, with the period set to 8 hours.



81: GOES, Site 8, Thu 16-May-2002 12:44:35 MDT, GOES at 8
GOES at 8 has been showing low modulation and fair data quality with
some periods of constantly < 3 good checksums (May 14 21:00 - May 15 02:00)

Transmitter: SE120, SN 3515.

Measured output:  12W forward, 1/2 W back.

The antenna is pointing at 146 deg azimuth, which according to John is
correct. Did not measure the elevation angle.

A one point I connected the GOES power plug to the wrong connector
on the front panel, and the transmitter wasn't reponding.  Talked
to John later - he said those other power plugs have 1 amp fuses,
and I probably blew its fuse, since GOES draws more than 1 amp during
transmissions. The GOES power connector has a hidden label, and is the 
one without a fuse.

Once it was on the right power plug it worked again.  

Result - no changes were made to GOES, and as of May 16 it is still
showing low modulation and fair data quality - but checksums look
about as good as any other site.
80: Barometer, Site 8, Thu 16-May-2002 12:35:04 MDT, barometer at stn8
During site visit of May 15.

Barometer at 8 has been out, since set-up I believe.

We added a 9 pin gender-changer in order to connect it to the sbus.
It interfered with the sbus - no other sensors would respond after
it was connected.  Tried resetting the bus - no luck.


Resorted to the backup scheme of putting the barometer on tyCo/5,
and removing the SDR command link.

Changed the SDR file close from "NO" to 28800 seconds (8 hours). So
now the SDR files will be managed by the SDR itself, not EVE.
Updated fmt0124.dat and installed it on EVE. 

Barometer is reporting.
79: Site_visit, Site 8, Thu 16-May-2002 10:58:05 CDT, Site 8 visit
Visited site 8 on May 16, to fix barometer, get fast & slow data, 
and check GOES.

See entries 80,81,82





55: Soil, Site 8, Sun 12-May-2002 15:43:17 CDT, Added earth ground to soil profile multiplexer
Steve added an earth ground to the soil profile multiplexer in an
attempt to eliminate apparent noise on the data.  After returning to
the base, this appears to have clobbered the data!



54: Fast_KH2O, Site 8, Sun 12-May-2002 15:40:21 CDT, Fixed KH2O at station 8
The krypton sensor was miswired inside the EVE box.  We fixed
it.



38: Status, Site 8, Tue 07-May-2002 21:09:17 MDT, site 8 setup
Site 8 was completed today.
Sonic serial number: NUW 4
Sonic Height: 4.6 m
Sonic Direction: 91 degrees
Krypton serial number: ????
Tsfc serial number: 3577-2
TRH serial number: 703
Prop serial number: 00313
Prop direction: 181 degrees
Radiation height: 2.15 m
Profile box: 2

NOTE: Co2 sensor turned on. Cal gases not attached.
No krypton set up here yet.







21: Loggers, Site 8, Thu 25-Apr-2002 14:22:32 MDT, CR10X coefficients for station 8
Coefficients downloaded to the
CR10x logger at station 8:


Q7-91096	NET(A+)	00	8.57
x	A-	01	10.53
E-31977	PYGIN	02	268.1684098
E-31979	PYGOUT	03	256.2788314
KZ-940187	PSPIN	04	100.7049345
KZ-970379	PSPOUT	05	46.23208507
H-87036	x	06	36.6
PAR-Q89084	x	07	.229311515
Pin-Tcase	A0	10	-34.684776
x	A1	11	66.834264
x	A2	12	-22.035472
x	A3	13	3.636372
x	A4	14	1.374373
Pin-Tdome	A0	15	-30.70008
x	A1	16	158.48531
x	A2	17	-178.12946
x	A3	18	130.37366
x	A4	19	-37.02623
Pout-Tcase	A0	20	-35.3451625
x	A1	21	70.1055623
x	A2	22	-26.7910694
x	A3	23	6.5944502
x	A4	24	.7010512
Pout-Tdome	A0	25	-30.72666
x	A1	26	159.60685
x	A2	27	-181.61806
x	A3	28	134.5932
x	A4	29	-38.84155
TS-970001	A0	30	-252.296443
x	A1	31	250.649199
x	A2	32	1.121346
MS-006	A0	45	-.187
x	A1	46	.037
x	A2	47	.335
E-31977	x	51	268.1684098
E-31979	x	52	256.2788314
KZ-940187	x	53	100.7049345
KZ-970379	x	54	46.23208507
Pin-Tcase	A0	55	-34.684776
x	A1	56	66.834264
x	A2	57	-22.035472
x	A3	58	3.636372
x	A4	59	1.374373
Pin-Tdome	A0	60	-30.70008
x	A1	61	158.48531
x	A2	62	-178.12946
x	A3	63	130.37366
x	A4	64	-37.02623
Pout-Tcase	A0	65	-35.3451625
x	A1	66	70.1055623
x	A2	67	-26.7910694
x	A3	68	6.5944502
x	A4	69	.7010512
Pout-Tdome	A0	70	-30.72666
x	A1	71	159.60685
x	A2	72	-181.61806
x	A3	73	134.5932
x	A4	74	-38.84155
ACTIVE	x	99	0

Post IHOP coefficients downloaded from cr10x

00:+9.2100
01:+11.370
02:+268.17
03:+256.28
04:+100.70
05:+46.232
06:+36.600
07:+.22931
10:-34.685
11:+66.834
12:-22.035
13:+3.6364
14:+1.3744
15:-30.700
16:+158.48
17:-178.13
18:+130.37
19:-37.026
20:-35.345
21:+70.105
22:-26.791
23:+6.5944
24:+.70105
25:-30.727
26:+159.61
27:-181.62
28:+134.59
29:-38.841
30:-252.30
31:+250.65
32:+1.1213
45:-.18700
46:+.03700
47:+.33500
51:+268.17
52:+256.28
53:+100.70
54:+46.232
55:+0.0000
56:+1.0000
57:+0.0000
58:+0.0000
59:+0.0000
60:+0.0000
61:+1.0000
62:+0.0000
63:+0.0000
64:+0.0000
65:+0.0000
66:+1.0000
67:+0.0000
68:+0.0000
69:+0.0000
70:+0.0000
71:+1.0000
72:+0.0000
73:+0.0000
74:+0.0000
99:+0.0000