- 1: 0 , Site none, Tue 26-Sep-1989 14:34:37 GMT,
Moninger at 497-6435, Andrea Ignatowski at 497-5200, or Rich Fozzard at
497-6011.
- 2: RADIATION , Site none, Thu 11-Jul-1991 01:01:40 GMT, Canopy radiation sensors:
Canopy radiation sensors:
The shielded Everest infra-red surface temperature sensor was mounted
horizontally facing the side of the cotton canopy looking due north.
David Gates and I discussed This deployment and decided that
this would best compliment his measurements.
The additional net radiometer is mounted ten centimeters above the soil
above the mid-morning shadow line.
This is to give a below canopy value.
- 3: RADIATION , Site none, Thu 11-Jul-1991 02:31:06 GMT, Additional radiation sensors:
Additional radiation sensors:
David Gate installed at the base of the prop tower additional
sensors to measure crop parameters.
They were two Vaisala relative humidity sensors with temperature, in
the canopy,
One Everest at 30 degrees angle down looking at the leaves,
and four leaf wetness simulation sensors.
All the data is recorded on their data logger.
We can obtain the data at the program end.
- 4: SOIL , Site none, Thu 11-Jul-1991 16:54:36 GMT, Soil moisture top 8 cm 21 July- 27 July
Soil moisture top 8 cm 21 July- 27 July 1991
Collected on the day indicated, weighed fresh immediately, cooked over night
and weighed dry the next day.
Sun Mon Tue Wed Thur Fri Sat
21 22 23 24 25 26 27
FURROW
A Fresh 24.85 22.49 23.55 19.14
Dry 23.52 21.07 21.96 17.99
Delta 1.33 1.42 1.59 1.15
% 5.7 6.7 7.2 6.4
B Fresh 26.77 29.05 21.97 24.41
Dry 25.26 27.15 20.48 22.91
Delta 1.51 1.90 1.49 1.5
% 6.0 7.0 7.3 6.5
C Fresh 17.05 22.81 28.12 21.26
Dry 16.15 21.39 26.21 19.97
Delta 0.90 1.42 1.91 1.29
% 5.6 6.6 7.3 6.5
Average % 5.8 6.8 7.3 6.5
RIDGE
A Fresh 19.91 23.86 18.99 25.71
Dry 17.82 21.66 17.40 23.31
Delta 2.09 2.2 1.59 2.40
% 11.7 10.2 9.1 10.3
B Fresh 21.35 14.44 24.01
Dry 19.09 13.20 21.49
Delta 2.26 1.24 2.52
% 11.8 9.4 11.7
C Fresh 16.83 23.29 13.06 23.80
Dry 15.18 21.17 11.97 21.59
Delta 1.65 2.12 1.09 2.21
% 10.9 10.0 9.1 10.2
Average % 11.5 10.1 9.2 10.7
- 5: FAST , Site none, Thu 11-Jul-1991 18:34:00 GMT, krypton calibration change
krypton calibration change
Path length for q_h20_uv.5m changed from 1.005
to 1.008.
- 6: OPERATIONS , Site none, Thu 11-Jul-1991 19:09:55 GMT, Instrument angles:
Instrument angles:
Below are the angles for the instruments.
site information: latitude = 36 degrees 48'45"
longitude = 120 degrees 40'30"
TOWER SENSOR DEGREES (true north)
flux tower: uw.5m.flux 357.1
ati.10m.flux 357.1
prop tower: 1.5m 0.0
3m 0.0
5m 0.0
7.5m 0.6
10m 0.1
eddy tower: uw.5m.eddy 359.0
- 7: OPERATIONS , Site none, Thu 11-Jul-1991 20:58:59 GMT, /home filled up around 2030, jd 192
/home filled up around 2030, jd 192
a little bit of archive data was lost,
managed to fix it within about 10 minutes
- 8: COND , Site none, Thu 11-Jul-1991 23:08:04 GMT, zero test of conditional sampler
zero test of conditional sampler
I've just come back from connecting the bags for the first conditional sampler test,
which will run for about 20 min. Bags B and C were evacuated using the new brass
shut-off valves and bag A (which we won't bother to fill) still has remnants of
Boulder lab air. Bag C was connected to the "up"[DOWN] tube (shiny fitting), bag B to
the "down"[UP] tube (tie-wrap), and bag A to the "delta - near-zero" tube.
[ I will have to double-check these[DONE] and label them properly! ].
The pump was turned on about 30 minutes prior in a sampling mode (unfortunately)
and then run for about 5 minutes with all valves set to sample. Then, the
evacuated bags were connected and the shut-off valves opened. After 20 minutes,
(now 15 minutes away) we (Tony and I) will fill up 2 flasks with the bag C & B air.
...steve
- 9: WEATHER , Site none, Thu 11-Jul-1991 23:18:38 GMT, Solar eclipse was this morning
Solar eclipse was this morning
Note that the eclipse was this morning first noticed at about 10:20 (local) and
lasting to about 12:00 (local). The maximum (62%) was to be about 11:24 (observed).
A lack of radiation (and associated lack of heat) was noticed by all people. This
will have an effect on radiation and temperature sensors.
Note that the twin-Otter overflew the site (32 passes) during this entire period.
- 10: COND , Site none, Thu 11-Jul-1991 23:37:44 GMT, Flask IDs for first (zero) test
Flask IDs for first (zero) test
6411-66 - bag C (should be up valve) [ WAS DOWN ]
6412-66 - bag B (should be down valve) [ WAS UP ]
Note that valve assignment doesn't have much meaning, since these flasks
were run with all valves set to sample, so the concentrations should be
the same in both.
- 11: COND , Site none, Fri 12-Jul-1991 02:28:41 GMT, Leaving sampler going, pump off
Leaving sampler going, pump off
This should allow us to gain some more w-statistics.
I hope the pump being off won't mess up the air inside. The pump will
have to be turned on for a while before sampling real air tomorrow.
- 12: SONICS , Site none, Fri 12-Jul-1991 02:41:36 GMT, sonic problems - 1d and UW
sonic problems - 1d and UW
I have had to replace 2 transducers today to get sonics going. The first was on
the conditional sampler's 1d ati, which wasn't sending data at all due to no sonic
signal. I replaced one of the transducers with one of my spares and got it going.
The zero looks okay (w's about 0), so I guess it works. Even though the transducer
is a different shape in the back, it should have the same dimension, so I think the
gain is okay. Incidentally, this sonic should be LEVELED before really trusting the
data.
About 0130 tonight, I noticed that B on uw.ed had died and traced it to the B top
transducer. (This was in addition to the other problems this sonic had on path A.)
I put in another one of my spares and got this going too. Note that this sonic will
have to be completely REZEROED, since I changed both gains and thresholds on both
B receive cards. At 0238, it finally is working again. (Prior to this time, it was
running but either had bad data or zeros - a failure mode fixed by cycling power.)
I also raised thresholds on both A transducers.
This raises the question as to the reliability of ATI transducers in the heat. (ARM
tested them in cold!) I think a call to Herb and/or Ski is in order. Thus:
DO LIST FOR TOMORROW:
- level 1d tower
- zero uw.5m.ed
- call Ski
- 13: SONICS , Site none, Fri 12-Jul-1991 17:30:38 GMT, uw.5m.ed zeroed
uw.5m.ed zeroed
I've just replaced a B transducer (top) again, and have now computed zeros.
They are:
A -115 B -89 C -3 S 36877 (with T=27, Tw=18, p=1006mb)
I did this by:
ashow marigold 200 > A
cut -10-80 A > uw1_zeroA.193
Splus
zeroa <- scan("uw1_zeroA.193",uwlist)
hist(zeroa$a)
mean(zeroa$a)
q()
and also for B,b and C,c to get all the means. Note that
s is from zeroa$s. This seems like a nice way to do it.
Am going to raise the 5m.ed mast now (it was dropped about 9:15 local).
- 14: OPERATIONS , Site none, Fri 12-Jul-1991 19:00:51 GMT, despiking for covars enabled
Set up covar_cosmos and covar_marigold to use prep.config
in SJVAWS91/results/covar so that despiking can be used by
the covars. IF CHANGES ARE MADE TO PREP.CONFIG, BE SURE
TO CHANGE THIS VERSION AS WELL!
- 15: COND , Site none, Fri 12-Jul-1991 19:29:41 GMT, Cond. samp. tower leveled
Cond. samp. tower leveled
I just used the bubble level to set the 1d sonic vertical. I climbed the mast to level
it, but moving around the tower did not appear to change the reading, so I judged that,
at least to the accuracy of the bubble level, my presence didn't tilt the tower. Any
remaining error should be small, since wind speeds have been light.
- 16: COND , Site none, Fri 12-Jul-1991 19:32:02 GMT, pump turned on
pump turned on
I am preparing to take a real sample sometime soon, so I want to flush the system.
- 17: LEVELS , Site none, Fri 12-Jul-1991 20:16:31 GMT, levels changed from flux to eddy
levels changed from flux to eddy
Values were checked with a DVM were:
pitch.flux 0.022
roll.flux 0.001
pitch.eddy -0.055
roll.flux 0.102
I don't think this had been done since I arrived, so the levels have been set to
read the flux tower for the last 3 days.
- 18: LEVELS , Site none, Fri 12-Jul-1991 20:35:26 GMT, archive_config/prep.config level entrie
archive_config/prep.config level entries changed
There was an error in archive_config, where it was storing cosmos 106&107 in both
eddy/uwlev and flux/uw05m. cosmos 104&105 are the ones to be stored in eddy/uwlev.
This will have had no effect on the data since it was only now that I changed to
monitor the eddy levels. Archiving on cosmos was shut down and restarted (20:27:17).
Also, the gains were off by a factor of 10 (I think) - note the earlier comment
on voltage output, along with another gain of 10 that 1 volt=10 degrees.
Charlie is about to add mean computation of these signals to covar.
- 19: CHEMISTRY , Site none, Fri 12-Jul-1991 21:24:58 GMT, weird IR sensor behavior
weird IR sensor behavior
I've just observed what I think is overheating on Wim's instrument. Both H2O and CO2 had
large meanders, level shifts, and spikes. It looks like we will have to improvise
a radiation shield for it.
- 20: SONICS , Site none, Fri 12-Jul-1991 21:28:25 GMT, sonic "painting"
sonic "painting"
Both uw sonics have been bouncing over the full-scale range recently. I suspect the
problem is overheating of the electronics boxes. I'm working on sorting this out.
- 21: COND , Site none, Fri 12-Jul-1991 21:59:21 GMT, First real conditional sampler test
First real conditional sampler test
Bags are now sampling - started at 21:55 ASTER time.
C is up, B is down, A is connected, but won't be used since still leaking.
- 22: OPERATIONS , Site none, Fri 12-Jul-1991 22:05:31 GMT, archiving cycled for marigold
archiving cycled for marigold
This was done to enable archiving of conditional sampler data. Unfortunately, I am already
running a conditional sampler test. Archiving started 22:01:42, with the cond. samp. started
at 21:55. I may decide to throw the air out.
- 23: OPERATIONS , Site none, Fri 12-Jul-1991 22:06:59 GMT, playing around with foil
playing around with foil
I`ve just wrapped the uw electronics boxes and the IR sensor box with foil to help
cool them down. It seems to be working so far, but we'll keep on watching.
- 24: COND , Site none, Fri 12-Jul-1991 23:15:40 GMT, cond samp flasks filled
cond samp flasks filled
For the last hour's run, the following flasks were filled:
6225-66 - bag C, down air
6226-66 - bag B, up air
The settings were normal, 15 cm/s.
Note that bag C was MUCH more full than the other bags. Either there were a lot
of downdrafts, or something is wrong.
P.S. (Jul 14) I've tested the sonic, and there isn't a w-bias.
I've checked the conditional sampler status:
1 (+) 8872 samples
2 (=) 11187 samples
3 (-) 11910 samples
thus, there were more downdraft samples, but only by 20% or so -
not enough to explain the observation that bag C took 5 times longer to evacuate
than either A or B, which had about the same volume.
Thus, this still is a mystery to me. Perhaps I was fooled by the volumes due to
C being on top, and there was an obstruction slowing the pumping rate. I'll look
into this more.
- 25: OPERATIONS , Site none, Sat 13-Jul-1991 15:09:43 GMT, Morning status
Morning status
Looking at cockpits running since last night (00Z).
Three spikes on (u,c).10m.ati
Two spikes visible on c.5m.uw.fx
w on both sonics reached +-2.5 m/s
Propvane v are all negative, thus no southerly winds
(G1,G3).8cm range from +50 to below -100 W/m^2
G2.8cm ranges from +30 to -50 W/m^2
Tsoil.a range 290 to ZZ> 315 deg K
Tsoil.b 295 - 305
Tsoil.c 295 to 310
about 30 spikes on ().5m.uw.ed
- 26: FAST , Site none, Sat 13-Jul-1991 21:16:56 GMT, krypton clibration changed
krypton clibration changed
Determined that calibration function for the krypton hygrometer has been
wrong; we were assuming a 5v offset and a gain of 2. Turns out that
the actual adam offset is 0 and gain is 1. Created a new calibration
function q_kh20_2a.c which assumes gain = 1 and offset = 0.
Restarted covar with the new calibration. Previous covar output for
q_h2o_uv.5m and all associated covariances will be wrong. Raw
archive data will be okay.
- 27: SOIL , Site none, Sat 13-Jul-1991 22:52:35 GMT, Soil moisture top 8 cm 14 July- 20 July
Soil moisture top 8 cm 14 July- 20 July 1991
Collected on the day indicated, weighed fresh immediately, cooked over night
and weighed dry the next day.
Sun Mon Tue Wed Thur Fri Sat
14 15 16 17 18 19 20
FURROW
A Fresh 21.57 24.10 26.45 22.01
Dry 19.16 22.36 24.50 20.44
Delta 2.41 1.74 1.95 1.57
% 12.6 7.8 8.0 7.7
B Fresh 25.65 25.49 28.12 23.32
Dry 22.88 23.24 26.13 21.63
Delta 2.77 2.25 1.99 1.69
% 12.1 9.7 7.6 7.8
C Fresh 22.14 20.18 23.48 25.70
Dry 19.71 18.56 21.87 23.84
Delta 2.43 1.62 1.61 1.86
% 12.3 8.7 7.4 7.8
Average % 12.31 8.73 7.7 7.8
RIDGE
A Fresh 17.93 20.58 19.89 20.00
Dry 15.63 17.95 17.58 17.88
Delta 2.30 2.63 2.31 2.12
% 14.7 14.71 13.1 11.9
B Fresh 18.62 25.49 21.00 23.58
Dry 16.19 22.69 18.56 21.00
Delta 2.43 2.8 2.44 2.58
% 15.0 12.3 13.1 12.3
C Fresh 20.95 22.69 23.32 29.16
Dry 18.19 19.52 20.59 25.99
Delta 2.76 3.17 2.73 3.17
% 15.2 16.2 13.3 12.2
Average % 15.0 14.4 13.3 12.1
- 28: CHEMISTRY , Site none, Sat 13-Jul-1991 22:57:44 GMT, shielding Wim's sensor
shielding Wim's sensor
I've just remade the cover on the infrared sensor. There now is a scoop on the top
which reflects the sun and forces air over the cover (which also cools the shield).
I kind of like this design. I also put small shields over the lens holders, but they
probably won't do too much.
- 29: PSYCS , Site none, Sat 13-Jul-1991 23:14:56 GMT, psycs at 1.5m and 3m switched
psycs at 1.5m and 3m switched
This was done because Steve S. left suspecting a problem with the 1.5m unit.
With this unit now at 3m, it will be between "good" levels, so data can be
bracketed.
I noted that the water level was about 80% in both bottles, so they should
last quite a while longer.
- 30: LEVELS , Site none, Sun 14-Jul-1991 01:28:17 GMT, orientation of uw.eddy changed
orientation of uw.eddy changed
While I worked on the shield for Wim's sensor I apparently changed the orientation of
the levels. Looking at the level data for this afternoon, I see a change in
pitch from -.60 to -1.05 and in roll from 1.04 to .99. That's what we installed the
levels for!
After looking at a few hours of data using S, it appears that the sonic does move
in the wind, but only by 0.03 degrees. (This afternoon, the wind went from about
2 m/s to around 8.) Note that this was for the 5m eddy mast, so this number might not
be representative of what we would see with a 10m tower. The standard deviation
in angle was 0.01 degrees, though this is mostly due to the above-mentioned
trend. Overall, I would say that our orientations are pretty good - well within
the other sonic angle accuracy of 0.1 degrees.
- 31: STATUS , Site none, Sun 14-Jul-1991 04:22:04 GMT, daily plot interpretation
daily plot interpretation
A few notes after generating plots for some of 192, and all of 193&194:
temp profiles: drys just barely go unstable - all temps (except in canopy)
are within a .3 C range. They may never have gone unstable on 193.
However, w't' does go positive during the morning on all days.
wets always change "stability". Vapor flux is upwards, as expected.
wind profiles: always monotonically increasing. Lowest prop stalls early - we will
swap out the HC11 as per SRS's instructions tomorrow.
sonics: ati reads slightly lower than uw, even though it is higher. This is
not good.
uw.eddy reads higher than uw.flux. I suspect the crystal oscillator on
uw.eddy may have changed, since the speed of sound on this sonic has
been too high (indicating small transit time counts, and thus a clock
which is slow?) This is consistant with the higher winds I'm seeing.
I'll test the oscillator with the scope soon.
krypton: calibration was changed about 21Z today - all prior data are off.
infrared: seems to misbehave during the heat of the day. I think my latest shield
helps - we'll see tomorrow.
co2 flux changes sign during the night (plants respire), as it should.
Mean co2 appears to decrease during the night and increase during the
day, looking like a negative gain. I don't understand how the flux can
appear to have the right sign, and the mean be different. In an attempt
to solve this puzzle, I looked at spectra (thinking the low frequencies
- and the mean - might be contaminated with temperature). This showed
good values (agreement between q with krypton and similarity between
co2 and h2o) at low frequencies. (There definitely is white noise at
high frequencies, but it doesn't appear to effect the cospectrum much.)
Thus, the puzzle is unsolved. I'm hoping to learn more when Ray Desjardins
brings along some co2 cylinders so we can do a rough calibration.
fast Ts: biases change with temperature, as observed in FLAT and ARM. variances
are okay (I think - didn't really check them too much). 10m variance
is less than 5m, as expected.
radiation: seems okay. net_canopy shows the effect of furrow shadowing. t_surface
appears to be seeing both canopy and dirt, and fluctuates with the wind
blowing the canopy around. This is consistant with results compared
with the twin otter overflight.
winds: mostly northerly - tendency to turn W during the night. NEVER FROM
THE BACK OF THE TOWER - HURRAY! Calms down during the night to 0.5-2,
late afternoon picks up to 5-8.
soil probes: seem okay.
- 32: SOIL , Site none, Sun 14-Jul-1991 17:08:56 GMT, status-tsoil
status-tsoil
I think one (the upper?) of the tsoil a probes has been uncovered - the data from
one of the 12 tsoil probes is significantly higher (now, during the morning)
than the others. I'll try to check this now.
P.S. Upon looking, it appears that a surface crack, caused by soil drying, has
opened up, exposing the probe directly to air. I haven't done anything about it
since the next irrigation cycle should seal it up again.
- 33: CHEMISTRY , Site none, Sun 14-Jul-1991 20:01:09 GMT, O3 configuration changed
O3 configuration changed
The gains on o3.5mfast and o3.5mnofilter have been changed to reflect +/-10V, instead
of +/-5V, since that is what Dick is sending. A jumper was added to W4 and
prep.config was changed. I'm going to restart covar to enable this change.
- 34: SONICS , Site none, Sun 14-Jul-1991 22:47:36 GMT, ati 1d zeroed
ati 1d zeroed
Since I had changed the transducer, and since any w bias is critical for the conditional
sampler, I checked the zero on the 1d ati today. After a lot of pain (I loosened one
of the transducers by mistake and took a long time to find it), I captured the file
/home/aster/projects/SQVAQS91/cals/ati1d.195
The mean w from this file is -0.006 m/s, so the zero apparently is pretty good!
- 35: OPERATIONS , Site none, Mon 15-Jul-1991 00:56:00 GMT, Shutdown to reset time
Shutdown to reset time
Since our system clock is off from GMT by a few minutes, I am going to reboot aster.
I will do this in about 15 minutes, once I've finished all of the daily plots.
- 36: OPERATIONS , Site none, Mon 15-Jul-1991 15:15:44 GMT, Morning status JD 196
Morning status JD 196
Looking through the xcockpits from last night's run.
flux tower:
1. 1 spike on uw sonic
2. both t's look okay
3. pitch on uw.ed shows a significant step change;
is this one hooked up?
4. roll on uw.ed shows a small change as well; ditto?
5. ati sonic looks good, except for large negative offset in w
6. uw looks like w has a small offset also
psyc tower:
1. looks ok
prop tower:
1. seems ok
rad farm:
1. looks reasonable
eddy tower:
1. fast t, krypton and uw sonic look good
2. can't tell what the ir instrument is doing
consamp tower:
1. three spikes on cs sonic
2. t.cs looks like it jumped - there is a band between about
30-32 C and 16-20 C, with nothing between
- 37: FAST , Site none, Tue 16-Jul-1991 00:15:21 GMT, Fast T reinstalled
Fast T reinstalled
I had removed it for the ozone balloon-bursting timing tests. It is
back in. (5m.uw.eddy). The balloon tests took about 1/2hour.
- 38: OPERATIONS , Site none, Tue 16-Jul-1991 01:42:05 GMT, O3 instrument operational
O3 instrument operational
O3 zero cals and time lag estimates
finished. O3 instrument is now opertional,
although the unfiltered channel shows
noise.
- 39: CHEMISTRY , Site none, Tue 16-Jul-1991 01:51:12 GMT, Calibration info for Pearson Ozone
Calibration info for Pearson Ozone
Results of lag tests:
23:44:46 0.41 s
23:46:48 0.37 s
00:07:17 0.42 s
00:09:07 0.28 s - I think a balloon fragment blocked the sound after bursting
00:11:17 0.43 s
Should use 0.40 seconds.
Note that each (start and stop) time was accurate to +0-.05 seconds, thus
the measurement accuracy is 0-0.1 seconds.
Results of Dick's field calibration versus the Dasibi:
Dasibi = 297.9939 + 27.38175.
(to get this, one point was removed from the fit which looked strange.)
- 41: OPERATIONS , Site none, Tue 16-Jul-1991 15:22:08 GMT, Morning Status, JD 197
Morning Status, JD 197
Flux tower:
1. 10m sonic and fast T okay
2. 5m sonic and fast T okay, although
there is an offset betwen the two T's
Prop tower:
1. Props look ok.
Psyc tower:
1. baros okay
3. psyc's okay
Rad Farm
1. Rad okay.
Eddy tower:
1. O3 looks okay, about 20 ppb?
2. O3.nofilter still just noise
3. t prime looks good
4. q krypton looks okay
5. sonic ok
6. co2 is anybodies guess
Consamp tower:
1. no spikes on the sonic!
- 42: LOG , Site none, Tue 16-Jul-1991 22:34:17 GMT, Twin Otter just left
Twin Otter just left
They did two groups of 12 passes (visiting I5 in between for 15 minutes)
during the last 2 hours or so.
- 43: LEVELS , Site none, Wed 17-Jul-1991 01:48:58 GMT, Levels changed from eddy to flux
Levels changed from eddy to flux
- 44: COND , Site none, Wed 17-Jul-1991 16:28:45 GMT, conditional sampler turned off
conditional sampler turned off
this is to conserve disk space, which is now at 100% while I am backing up.
- 45: OPERATIONS , Site none, Wed 17-Jul-1991 17:03:03 GMT, archiving restarted
archiving restarted
I had stopped archiving while the disk was full - the tape backup is completed now.
- 46: CHEMISTRY , Site none, Wed 17-Jul-1991 21:15:11 GMT, IR sensor calibration
IR sensor calibration
I've just run 4 gas bottles through the calibration chamber on Wim's instrument.
The bottles were provided by Ray Desjardins yesterday. The sequence was:
1736 - nitrogen
give tour to Jim Podalski et al
1929 - 371ppm CO2
1936 - 313ppm CO2
go back to work up numbers
2021 - 339ppm CO2
The numbers are:
gas h2o_abs h2o_ref ratio co2_abs co2_ref ratio
N2 28606 24464 1.169 32900 28054 1.173
371 25591 21977 1.164 26537 25178 1.054
313 25485 21897 1.164 26787 25076 1.068
339 25019 21555 1.161 26076 24665 1.057
Note that the h2o ratio is just about constant, indicating
that the co2 mixtures were probably dry (had no h2o). Also
note that the co2 response is correct, with the ratio decreasing
with increasing co2 concentration. When plotted, the
co2 data are not linear however. I suspect that there is a
temperature drift and the temperature changed during the
test (especially since they were done over a 3 hour (morning)
period. The linear calibration from the two consecutive tests
(371 and 313) yields:
co2 = -4143*ratio + 4738
Since Wim apparently likes the calibration to contain an overall
attenuation, the slope may be expressed as:
4143 = 4860/1.173 = 4857*0.853
where 1.173 is the ratio with no CO2.
For h2o, the present gain of -120*.916 works well. The offset of
116 yields a bias on the order of -6 g/kg. (There is a temperature
drift.) I will change the code to reflect the zero measured for
N2, thus the calibration will be:
h2o = -129*0.855 * ratio + 122
- 47: OPERATIONS , Site none, Thu 18-Jul-1991 16:11:35 GMT, Morning status jd 199
Morning status jd 199
flux tower:
1. fast t's look okay
2. pitch.5m.uw.fx shows a jump
3. 10m.ati sonic ok
4. 5m.uw sonic ok
5. props look good
psyc tower:
1. look okay, except 5m wet bulb may be reading
a bit high
rad farm:
1. all ok
eddy tower:
1. o3 nominal
2. t.5m and krypton good
3. many spikes on the uw sonic
4. ir signals look reasonable, except
ir h2o mean is about 4, should be about 10
- 48: WEATHER , Site none, Thu 18-Jul-1991 21:07:31 GMT, Dust devil just passed through the arra
Dust devil just passed through the array
Event seen in temp, w, u, v, and other scalars. Duration about 30 sec.
- 49: LEVELS , Site none, Fri 19-Jul-1991 00:34:29 GMT, levels switched about 2 hours ago
levels switched about 2 hours ago
I think it was from flux to eddy.
- 50: SONICS , Site none, Fri 19-Jul-1991 00:38:54 GMT, UW sonics woes
UW sonics woes
I have just traced the speed of sound (and maybe more?) problem to the
74HC74 above the 32 MHz oscillator. I have moved it to sonics #2, which
has just started having the same problem. I'll try to get a replacement
tomorrow - at worst, I'll ask Steve to bring one. I will have to trace through
the schematic to see what effect this had on the data up till now. All the
wiring in UW #1 should be redone when we get back.
- 51: LOG , Site none, Fri 19-Jul-1991 00:43:36 GMT, visitors
visitors
Today, Walt arrived (bringing me) and his friend Roy showed up later.
Note that Walt was up the psyc mast about an hour ago to take a picture.
Yesterday, Jim Podolski and another Jim and Walt were here from about
1100-1430 (local).
The day before that (Tues), Ray Desjardins and another person showed up
from about 1300-1430 (local).
On Sat. night, Poul Hummelsford (sp?) from RISOE will arrive in Fresno
for the tour on Sunday.
We should have the visitors sign up in logbook!
- 52: SOFTWARE , Site none, Fri 19-Jul-1991 03:38:27 GMT, New version of covar installed
New version of covar installed
covar with phase adjustment installed and
covars restarted at 03:36. May be buggy.
- 53: STATUS , Site none, Fri 19-Jul-1991 22:46:27 GMT, Tasks performed today:
Tasks performed today:
- Switched prop #10 (with HC11 #3?) into the lowest level - had to swap MC14490
chips to get it to go.
- put a new 74HC74 in UW#2, to prevent the same speed of sound drift problems
- wiggled connector on back of acc. sounder to get the signal back
- resoldered (and still had to wiggle) transducer connector inside box on AT, UW#1.
Is spiking less now
- rewired the conditional sampler so it gets power from the power supply at the
base of its tower. I made up a VERY strange fork/pigtail connector assembly to
do this since we didn't have all of the appropriate connectors here.
Am running a test now to determine whether this helps the bag filling problem
which caused the down bag to be so full during the first test.
- 54: CHEMISTRY , Site none, Sat 20-Jul-1991 19:05:18 GMT, Water cooling Wim's sensor
Water cooling Wim's sensor
I've just come back from placing a wet towel on the infrared sensor electronics
box. The CO2 signal is slowly decreasing now - I'll have to wait to see if
the trend continues.
- 55: CHEMISTRY , Site none, Sat 20-Jul-1991 19:09:26 GMT, NO line shut off
NO line shut off
I started smelling NO while testing the conditional sampler and called Dick.
At his advice, I've shut off the NO cylinder, but left everything else running.
I'm not sure where the problem is - Now that I'm paranoid, I seem to smell NO
everywhere. The pump shelter air definitely smells bad, but this could be normal
pump operation smells. There also was some evidence of a leak at the cylinder
itself (the cotton leaf was brown on the edges). Dick will show up sometime
to check it out. In the meantime, the ozone sensor is down.
- 56: SONICS , Site none, Sat 20-Jul-1991 19:11:15 GMT, uw sonic spiking AGAIN
uw sonic spiking AGAIN
It has to be the same connector, but I don't know what more I can to to prevent
this. I guess I'll have to remake it for the 4th time.
- 57: LOG , Site none, Sat 20-Jul-1991 21:13:34 GMT, C-FPOK just left site
C-FPOK just left site
They made 4-5 runs, and are now off to do a southerly regional run.
Our ozone wasn't working, and the sonic was spiking, as usual. Also,
Wim's sensor was reading quite high, despite my wetting of it about
30 minutes ago. Oh well...
- 58: COND , Site none, Sat 20-Jul-1991 23:29:06 GMT, conditional sampler stop
conditional sampler stop
This concludes a test from 22:20 to 23:20. I am going to
fill some flasks for real now. Note that bag A was always
on (because of a faulty valve, which I won't bother to fix,
but that I switched to be the middle position). This isn't
necessarily bad - it will be a true mean measurement, rather
than having to combine all 3 bags to get a mean.
- 59: COND , Site none, Sun 21-Jul-1991 00:09:14 GMT, flasks filled
flasks filled
from test 2220-2320,
6222-66 bag A - total air
6623-66 bag B - down air
6624-66 bag C - up air
Threshold was 15 cm/s
This was the first real test which has a chance of working. I'll do more tomorrow
in preparation for a big run on Tues.
- 60: RADIATION , Site none, Sun 21-Jul-1991 00:18:56 GMT, Radiation sensors need cleaning
Radiation sensors need cleaning
For the last 3 days, the peak solar radition has been ragged at noon.
Three days ago, I also noticed spots on the sonic electronics boxes, which
indicates that the field was sprayed. (I later noticed the same spots on
the prop fins.) If it was sprayed, the upward-looking radiometer domes may
have been contaminated also. We need to get up there and look.
- 61: RADIATION , Site none, Sun 21-Jul-1991 16:21:21 GMT, Canopy net radiometer leveled
Canopy net radiometer leveled
It was out by about 1/2 of a bubble, rotated with the bubble to the west
(east side down). We "rolled" it (around a N-S axis) to get it level.
- 62: LEVELS , Site none, Sun 21-Jul-1991 16:22:42 GMT, Pitch and roll switched again.
Pitch and roll switched again.
I think this was from eddy to flux, but I should check.
- 63: RADIATION , Site none, Sun 21-Jul-1991 17:39:41 GMT, Radiometers cleaned
Radiometers cleaned
All of the radiometers on the trellis were cleaned starting at 1000 local
(and Tom is going now to clean the net in the canopy) following our observation
that the field probably was
sprayed during the morning of July 18. To the eye, the cleaning did make a
difference. This explains why the last 3 days of radiation data showed irregularities
in the incoming signal. Other observations made at that time:
- the net is not level - it dips to the south (but we can't easily change this)
- the IR surface temperature looks straight down on the canopy. It is 250cm over
the ridge and 258cm over the furrows. The canopy is 68cm over the ridge, making
the IR surface temperature 182cm over the canopy.
- the downward-looking Epplys are 10 cm lower than the IR sensor
- 64: COND , Site none, Mon 22-Jul-1991 00:24:54 GMT, ATI 1d sonic xducers replaced
ATI 1d sonic xducers replaced
The 1d had about -1.5 m/s bias, which would mess up the conditional sampler.
I had to change both transducers to get it working. The zero should now be
checked, but it seems like it is pretty close to 0.
- 65: LOG , Site none, Mon 22-Jul-1991 00:26:45 GMT, Pearson out at eddy tower
Pearson out at eddy tower
He has been there almost continuously since around 1300 local, and will
probably be there for another hour at least.
- 66: LOG , Site none, Mon 22-Jul-1991 01:16:37 GMT, visitors today
visitors today
Poul Hummelsford (sp?) was here from about 1140-1500 local
Larry Mahrt and Jim Pederson were here from about 1330-1600 local
- 67: CHEMISTRY , Site none, Mon 22-Jul-1991 22:13:40 GMT, ozone now working?
ozone now working?
We cleaned a fair amount of dirt from the scintered flow restricter, which
changed the output from 30 ppb to 70 ppb. The flow rate (NO?) was then changed,
which bumped the output up to 90 ppb. During this, the Dasibi has been reading
about 85 ppb (76 after an offset of 9?), so maybe we're now too high. (Or
maybe the Dasibi really doesn't have an offset.) The final setting was made about
15 min. ago.
- 68: SONICS , Site none, Mon 22-Jul-1991 22:15:47 GMT, wet towel now on 5m.uw.eddy
wet towel now on 5m.uw.eddy
This sonic started painting, so it called for desperate action. Problems
started at an air temp of about 32C. I'll think about airconditioner ductwork
for a more permanent solution.
- 69: CHEMISTRY , Site none, Tue 23-Jul-1991 02:05:32 GMT, Filter installed in o3.nofilter
Filter installed in o3.nofilter
This was done to test if the channel is okay - it seems like it is.
- 70: PSYCS , Site none, Tue 23-Jul-1991 17:06:35 GMT, 5 m psychrometer wet bulb appears to be
5 m psychrometer wet bulb appears to be
reading a few tenths of a degree high.
- 71: OPERATIONS , Site none, Tue 23-Jul-1991 19:36:15 GMT, Main breaker on xfrmr blew
Main breaker on xfrmr blew
This happened about 30-40 min. ago. Everything was rebooted
and processes started. We think this is due to all the airconditioners
and pumps out here.
- 72: SONICS , Site none, Tue 23-Jul-1991 19:37:55 GMT, uw eddy moved to shelter
uw eddy moved to shelter
This was done to allow the electronics to be cooled, but requireed
longer cables, which introduced noise. We are about to take another
set of zeros on it now.
- 73: CHEMISTRY , Site none, Tue 23-Jul-1991 22:21:59 GMT, CO2 variance appears to be increasing i
CO2 variance appears to be increasing in
magnitude. Is it getting noisier??
- 74: SONICS , Site none, Tue 23-Jul-1991 23:04:27 GMT, Very heavy spiking on all channels of
Very heavy spiking on all channels of
5m.uw.ed.
- 75: COND , Site none, Wed 24-Jul-1991 03:06:02 GMT, Now starting 24 cond. samp. runs
Now starting 24 cond. samp. runs
I started at 2000 local - 0300 GMT, with the valves in the Normal setting.
The plan is to take 1 hour samples, toggle Reverse mode, transfer to flasks,
and restart on the next even 5 minute time. I will fill flasks from all 3 bags.
- 76: WEATHER , Site none, Wed 24-Jul-1991 03:16:58 GMT, sunset about 2012 local (0312 GMT)
sunset about 2012 local (0312 GMT)
Thus, the conditional sampler test starts slightly before sunset.
- 77: COND , Site none, Wed 24-Jul-1991 06:55:50 GMT, thresholds changed
thresholds changed
during this nearly calm night, a threshold of 15 cm/s is too large,
since sigma w is about 10 cm/s. The bags did not getting completely
filled (enough to fill the flasks) during the last run at 15. I just
changed it 10 for this next run (2345-0045), but will change again
down to 5 cm/s for the following run.
The "B" flask probably did not get enough air pressure due to this
problem, and I messed up the "C" flask (accidentally connected the
"B" bag back up), so it may have B-air, ambient air (which was in
the pump fitting), in addition to the normal "C" air. It did have
a vacuum to pull out "C" air even though I had exposed it to
bag B - The evacuation procedure for the bags must be at least
somewhat correct!
- 78: RADIATION , Site none, Wed 24-Jul-1991 06:58:15 GMT, Non-solar light
Non-solar light
There is a 3/4 moon tonight, which seems bright enough to
contribute incoming short-wave radiation.
Also, I have a light in the conditional sampler shelter tonight, though it
mostly illuminates the inside of the shelter. I do take it out to use the
Toshiba for about 2 minutes at the beginning of each flask filling session.
- 79: WEATHER , Site none, Wed 24-Jul-1991 08:22:30 GMT, dew has formed
dew has formed
I just noticed that the toshibi is slightly wet.
It seemed like dew had recently evaporated when I got to the site this (now
yesterday) morning also.
- 80: LOG , Site none, Wed 24-Jul-1991 11:56:04 GMT, Crop dusting
Crop dusting
A helicopter started spraying the field 1 mile NW (and on E side of road?) about 20 minutes
ago. Note that dawn is now breaking - he flew for at least 15 min in total darkness.
(The moon set about an hour ago.)
There were another pair of planes which made a few passes over the field to the S about
midnight. I don't know what they were doing.
- 81: LEVELS , Site none, Wed 24-Jul-1991 17:33:02 GMT, Levels changed from flux to eddy
Levels changed from flux to eddy
- 82: FAST , Site none, Wed 24-Jul-1991 17:36:30 GMT, t.10m.ati replaced
t.10m.ati replaced
We also did a calibration, saved as:
/home/aster/projects/SJVAQS91/cals/tfast_10m.205
with switches every 5 seconds between zero, operate, and +5C cal.
The final Fluke reading was 30.2C - the fast T was reading about
2C higher.
- 83: COND , Site none, Wed 24-Jul-1991 18:23:14 GMT, Leaving conditional sampler to Tom
Leaving conditional sampler to Tom
I took data all night, and should have lots of decent runs.
Consult the field logbook for details, but this is a list of runs I took:
Time(local)
2000
2115
2230
2345
0100
0215
0330
0445
0600
0715
0830
0955
Assuming Tom takes 20 minutes between samples, here are the rest he should take:
1115
1235
1355
1515
1635
1755
1915
I have been logging the time to empty the bags (after the flask is filled).
"A" never gets as full as you would expect, given that the valve is always open -
perhaps it is only partly open (if so, where is the extra flow going - I don't
think it is being vented). "B" always seems to get more full than "C". Switching
Normal/Reverse sometimes puts more in "C", but never by as much as B was greater
than C in the other mode. Thus, things may not be perfect, but this is why
we're testing it!
- 84: OPERATIONS , Site none, Wed 24-Jul-1991 20:21:07 GMT, AES aircraft made ~16 passes late this
AES aircraft made ~16 passes late this morning,
~1200-1300 PDT. Ian McPherson noted crop changes;
I will compare them to crop map from Hammond (?)
Ranch.
- 85: SONICS , Site none, Wed 24-Jul-1991 20:22:17 GMT, uw sonic on scalar flux tower is curren
uw sonic on scalar flux tower is currently
spiking very heavily.
- 86: SONICS , Site none, Wed 24-Jul-1991 21:17:00 GMT, Some spiking on 5m uw sonic on scalar
Some spiking on 5m uw sonic on scalar
flux tower, but better than previously.
- 87: SONICS , Site none, Thu 25-Jul-1991 00:12:30 GMT, Created new sonic calibration routine,
Created new sonic calibration routine, sonic_uw_4a
to account for new zero wind values for 5m uw sonic
on scalar flux tower that were obtained yesterday.
Edited prep.config files in ~aster/config and
~aster/...results/covar. The prep.config file in
~aster/config had calibration routine _1, while
the prep.config file in ~aster/...results/covar had
calibration routine _3a.
- 88: CHEMISTRY , Site none, Thu 25-Jul-1991 00:59:09 GMT, Fast 03 Observations
Fast 03 Observations
Fast 03 Dasibi N.O. Tank Press. N.O. Line Press.
------- ------ ---------------- ----------------
-----------------------------------------------------------------
July
----
22 540
23 -3.2 73 4
24 -4.9 69 350 20
25 -7.5 36 250 22
26
27
28
29
30
31
August
------
1
2
3
4
5
6
7
8
- 89: OPERATIONS , Site none, Thu 25-Jul-1991 02:56:17 GMT, Covars not running for the past hour or
Covars not running for the past hour or two.
I stopped them in an attempt to delete the
master .covar files, but was unsuccesful in
doing that. Then they would not restart
because of problems associated with trying
to remake the calibration files for the
uw sonic.
- 90: COND , Site none, Thu 25-Jul-1991 03:02:54 GMT, Continued CO2 conditional sampler exper
Continued CO2 conditional sampler experiment,
taking one hour samples beginning at (pdt)
0955
1135
1250
1405
1520
1635
1750
1910
The mode of the last sample may be questioned:
Before the 1910 sample, I could not use the
Toshiba to log onto the conditional sampler
because it had lost power. Therefore, I
assumed it was in the same mode as the last
(1750) sample, 'R'. I tried to 'rserial
marigold 202' from aster, but was refused.
Later, when I checked on aster, after beginning
the 1910 sample, there was an 'rserial
marigold 202' running. I killed that process,
but when I logged onto the conditional sampler
from aster, it was in the 'N' mode.
After the 1910 sample was processed, I shut down
the conditional sampler.
- 91: STATUS , Site none, Thu 25-Jul-1991 16:36:21 GMT, SYSTEM STATUS
SYSTEM STATUS
Arrived at about 15:00 gmt to find
the disk had overflowed and archiving from
cosmos had stopped.
Killed some fills and restarted archiving on
cosmos at about 15:25 gmt.
- 92: OPERATIONS , Site none, Thu 25-Jul-1991 17:10:37 GMT, INTERNAL T in MARIGOLD:
INTERNAL T in MARIGOLD:
Added internal temperature sensor to marigold
at 16:50 gmt.
- 93: PSYCS , Site none, Thu 25-Jul-1991 18:37:12 GMT, .5m PSYC:
.5m PSYC:
Played with the .5m psyc wet bulb at 18:00 gmt.
Wick is very dirty ands needs replacement.
- 94: OPERATIONS , Site none, Thu 25-Jul-1991 19:36:29 GMT, COVAR files:
COVAR files:
Around 18:50 gmt, I completed reducing the
size of the covar files by splitting for day 206 then
deleting ADAM.covar and renaming ADAM.covar.206 to ADAM.covar
Ragwort covar kept running ok. Cosmos and marigold
did not. After playing around, I found I had to re-make covar
and move it to sun4 toget them going.
This was accomplished around 19:25 gmt.
- 95: CHEMISTRY , Site none, Thu 25-Jul-1991 21:05:17 GMT, OZONE:
OZONE:
Dick Pearson is here to work on
his sensor. It will be off starting at 21:05 GMT.
Back on again at 22:49.
Vacuum pump oil changed. Note that this is a
good opportunity to check zero signal level.
- 96: PSYCS , Site none, Thu 25-Jul-1991 22:07:07 GMT, PSYC WORK:
PSYC WORK:
The psyc wicks were replaced over the time
window of 20:00 to 22:00 GMT.
- 97: SOIL , Site none, Thu 25-Jul-1991 23:51:30 GMT, Copy of logbook entry 4
Copy of logbook entry 4
Soil moisture top 8 cm 7 July- 13 July 1991
Collected on the day indicated, weighed fresh immediately, cooked over night
and weighed dry the next day.
Sun Mon Tue Wed Thur Fri Sat
7 8 9 10 11 12 13
FURROW
A Fresh 23.75 25.77 15.57 15.33 28.34
Dry 16.92 18.97 12.51 12.87 25.56
Delta 6.83 6.8 3.06 2.46 2.78
% 40.4 35.8 25.5 19.1 10.9
B Fresh 24.07 34.64 22.11 16.92 25.16
Dry 16.96 25.88 17.67 14.20 22.68
Delta 7.11 8.76 4.44 2.72 2.48
% 42.0 33.8 25.1 19.2 10.9
C Fresh 26.47 33.67 22.35 21.31 19.33
Dry 18.82 25.27 17.81 17.90 17.44
Delta 7.65 8.4 4.54 3.41 1.89
% 40.6 33.2 25.5 19.1 10.8
Average % 41.0 34.3 25.4 19.2 10.9
RIDGE
A Fresh 18.63 15.84 21.77 24.00 20.94
Dry 14.87 12.94 18.01 20.23 17.59
Delta 3.76 2.9 3.76 3.77 3.35
% 25.3 22.4 20.9 18.6 19.0
B Fresh 18.64 18.02 15.21 23.49 20.45
Dry 13.80 14.78 12.51 19.81 17.30
Delta 4.84 3.24 2.70 3.68 3.15
% 35.1 21.9 21.6 18.6 18.2
C Fresh 17.10 20.05 16.92 24.73 21.84
Dry 15.02 16.42 13.95 20.96 18.40
Delta 2.08 3.63 2.97 3.77 3.44
% 13.8 22.1 21.3 18.0 18.7
Average % 24.8 22.1 21.3 18.4 18.6
- 98: SONICS , Site none, Fri 26-Jul-1991 00:44:19 GMT, EDDY SONIC:
EDDY SONIC:
From 23:30 to 00:30 GMT, the eddy sonic was done.
The electronic box was moved from the cond. sampler shelter
to the ozone shelter. The signal cables were reduced to the
short length. Initial cockpit look at the data shows good
signals.
- 99: LOG , Site none, Fri 26-Jul-1991 15:26:12 GMT, Took photos from front of array this mo
Took photos from front of array this morning.
Note that I took photos at the array of
individual towers and sensors on Sunday,
July 21.
- 100: LOG , Site none, Fri 26-Jul-1991 15:52:52 GMT, Measurements of canopy height:
Measurements of canopy height:
spo began measurements of canopy height
relative to the tower bases on July 20.
He placed tape at 5 cm intervals on the
momentum flux, psychrometer, and conditional
sampler towers and then sighted these marks
from seven locations along the base walkway
~10 m south of the tower line. The sighting
lines are:
1: e end of walkway to cs tower
2: s of cs tower to cs tower
3: s of scalar flux tower to psyc tower
4: s of psyc tower to psyc tower
7: s of prop tower to psyc tower
5: s of prop tower to momf tower
6: s of momf tower to momf tower
The data are:
1 2 3 4 5 6 7
7/20 73 68 79 75 88 78 83
7/26 80 75 95 80 93 80 88
- 101: LOG , Site none, Fri 26-Jul-1991 16:02:46 GMT, /home at 95% at 8am pdt.
/home at 95% at 8am pdt.
/home at 51% at 9am pdt and
after doing backup.
- 102: SONICS , Site none, Fri 26-Jul-1991 16:26:02 GMT, uw sonics appeared to have run fairly c
uw sonics appeared to have run fairly cleanly
last night, including the 5m scalar flux tower
sonic that was moved (electronics) yesterday.
- 103: SONICS , Site none, Fri 26-Jul-1991 19:19:48 GMT, EDDY SONIC:
EDDY SONIC:
The uw sonic on the eddy tower is
still spiking. It doesn't appear to be as bad
as before; however, there are more spikes than
one would expect. Will try playing with the
threshold levels.
- 104: FAST , Site none, Fri 26-Jul-1991 23:41:34 GMT, The heat flux on the scalar flux tower
The heat flux on the scalar flux tower looks
anomolously large this afternoon. This appears
to be caused by larger temperature fluctuations
at the scalar flux tower than at the momentum
flux tower. Is this caused by the clutter of
sensors and shelters at the scalar flux tower??
- 105: STATUS , Site none, Sat 27-Jul-1991 15:41:55 GMT, SYSTEM STATUS:
SYSTEM STATUS:
Everything is up and running. The cron job
we tryed to run early this morning, to do automatic
archiving to tape, did not run. The script was not
executable. Made script executable and it is running now.
Sonic on scalar tower looked good thru the night
with a few spikes.
- 106: OPERATIONS , Site none, Sat 27-Jul-1991 15:44:37 GMT, INTERNAL T COSMOS:
INTERNAL T COSMOS:
Changed the internal T sensor in cosmos to
see if the modulated temperature data is due to the
sensor. This was done at about 15:30 gmt.
- 107: COMMENT , Site none, Sat 27-Jul-1991 17:28:16 GMT, Infrared q appears to be consistently s
Infrared q appears to be consistently slightly higher
than krypton q.
- 108: FAST , Site none, Sat 27-Jul-1991 17:47:54 GMT, Have noted that 5m eddy fast T has a gr
Have noted that 5m eddy fast T has a greater
variance during the day than the 5 m flux fast
T for the past few days. This also appears in
the heat fluxes.
Noted then that the flux fast T had a 1 deg C
increase around 2100 on day 205. Steve is
doing a calibration on that sensor.
5 m flux fast T is now reading 1.8 deg C higher
than the chamber reference, and the 5 m eddy
fast T is reading 0.9 deg C higher.
We put the chamber on both sensors and recorded
data in the operate, calibrate, and zero
modes. The data are in the directory projects/
SJVAQS91/cals in files tfast_flux5m.280 and
tfast_eddy5m.280. The gain of the flux fast T
is approximately 5.05 and that of the eddy fast T
is approximately 5.02 (analyze calibration data
files for better accuracy). These calibrations
occured between 1800 and 1900.
- 109: CHEMISTRY , Site none, Sat 27-Jul-1991 17:56:27 GMT, O3 shut down at ~17:50 for calibration
O3 shut down at ~17:50 for calibration by
Dick Pearson.
- 110: SONICS , Site none, Sat 27-Jul-1991 20:08:57 GMT, EDDY UW SONIC:
EDDY UW SONIC:
The sonic was moved from Dick's shelter
to the outside so Dick could put his calibration
instrument in the shelter. This took place around
19:50 GMT.
- 111: CHEMISTRY , Site none, Sat 27-Jul-1991 20:46:08 GMT, CHANNEL 106, MARIGOLD:
CHANNEL 106, MARIGOLD:
Channel 106 on marigold was
hooked up to the Descibi output so
Dick could monitor it. This meant
changing the gain of the amplifier from
gain of 1 offset of -5 to a gain of 1
offset of 0. Preprocess was also changed
for a linear calibration of .15252925 and
a 0 offset (volts measured in miilivolts).
Since this channel was not being used by
Dick I see no need to start a new ops file.
This occurred around 20:30 GMT.
- 112: CHEMISTRY , Site none, Sat 27-Jul-1991 23:09:10 GMT, O3 sensor back on line at 2300 GMT, and
O3 sensor back on line at 2300 GMT, and
5 m uw electronics returned to o3 shelter.
- 113: FAST , Site none, Sun 28-Jul-1991 00:24:36 GMT, Moved 10m fast T down to 5m on flux tow
Moved 10m fast T down to 5m on flux tower
in order to compare with others at 5m.
10m fast T was down from 2250 to 2400 GMT.
After moving the 10m fast T we did another
calibration on it. It was reading ~1.9 deg
C higher than the chamber reference. We
also did a gain check, putting the data into
projects/SJVAQS91/cals/tfast_10ma5m.208.
The gain appeared to be ~5.05; analyze the
data file for a more accurate value.
- 114: OPERATIONS , Site none, Sun 28-Jul-1991 00:25:49 GMT, We are doing the backup tomorrow via a
We are doing the backup tomorrow via a
crontab job. We have left an initialized
tape in the exabyte.
- 115: OPERATIONS , Site none, Mon 29-Jul-1991 22:34:11 GMT, THIS IS A TEST:
THIS IS A TEST:
This is to check out meta-log.
Metalog did not want to work today.
After many attempts the problem was found
in the file "invl.cmt". Exactly what the
problem was is still unknown; however,
by copying "invl.ini" over to "invl.cmt"
metalog started to work again.
The bad invl.cmt is saved in file invl.cmt.org
if anybody cares to look at it.
- 116: OPERATIONS , Site none, Mon 29-Jul-1991 22:56:28 GMT, COSMOS ANALOG DOWN:
COSMOS ANALOG DOWN:
Analog channels on cosmos went down
from ~17:30 to 21:30 GMT.
- 117: LOG , Site none, Tue 30-Jul-1991 00:08:28 GMT, Power Failure occurred at 23:15, JD 210
Power Failure occurred at 23:15, JD 210.
One consequence was a fire in the straw at
the end of the copper line outlet from the
O3 analyzer. We turned off the NO bottle
and extinguished the fire. Dick Pearson
thinks that the power failure caused a
relief valve to stick open, dumping
excessive NO(?) out the copper line, and
generating heat in the straw by an
exothermic reaction with the atmosphere.
We have left the O3 analyzer in its
present state pending repair by Dick.
Steve Semmer is restarting the ADAM's.
- 118: OPERATIONS , Site none, Tue 30-Jul-1991 00:27:37 GMT, ADAMS BACK UP:
ADAMS BACK UP:
After putting out the fire, the adams
were restarted. Cosmos was hung up in the vxwork
boot menu while ragwort and marigold Ironics
didn't boot properly.
Everything was backup at 00:23 GMT.
- 119: STATUS , Site none, Tue 30-Jul-1991 16:54:21 GMT, SYSTEM STATUS:
SYSTEM STATUS:
The system is up and running. The auto
archive ran ok last night. Dick Pearson should be
out later today to work on the Ozone sensor.
The 5m flux tower sonic, uw, had a number of spikes
during the night. The 5m eddy sonic looked good with
a few spikes.
Other sensors are running ok except for the
ozone.
- 120: OPERATIONS , Site none, Tue 30-Jul-1991 17:16:17 GMT, COCKPIT PROBLEMS:
COCKPIT PROBLEMS:
cockpit has been crashing giving a warning
message of sample.chan == 0
- 121: FAST , Site none, Tue 30-Jul-1991 18:59:04 GMT, Replaced transducer on t.5m.uw.fx. The
Replaced transducer on t.5m.uw.fx. The
data were looking very flaky, with large
excursions about twice per day. Looking
at the old transducer, it appears that the
platinum wire could have been intermittently
touching the supporting framework.
Replacement occurred ~1830 gmt. Performed
calibration with new transducer; data are
in projects/SJVAQS91/cals/tfast_5mflux.211.
The mean temperature reads about 2.8 deg C
lower than the chamber reference.
- 122: PSYCS , Site none, Tue 30-Jul-1991 21:36:41 GMT, PSYC @ 7.5m:
PSYC @ 7.5m:
The psychrometer at 7.5m has gone bad.
The wet bulb started going bad at 17:45 gmt.
The dry bulb does not look to healthy at times.
Will go investigate. Time is 21:30 gmt.
- 123: SOIL , Site none, Tue 30-Jul-1991 21:58:33 GMT, Soil moisture top 8 cm 28 July- 3 Aug 1
Soil moisture top 8 cm 28 July- 3 Aug 1991
Collected on the day indicated, weighed fresh immediately, cooked over night
and weighed dry the next day.
Sun Mon Tue Wed Thur Fri Sat
28 29 30 31 1 2 3
FURROW
A Fresh 15.09 irrig-
Dry 14.25 ation
Delta .84
% 5.9 began
B Fresh 17.10 no
Dry 16.12 data
Delta .98 today
% 6.1
C Fresh 17.83
Dry 16.84
Delta .99
% 5.9
Average % 6.0
RIDGE
A Fresh 16.28
Dry 14.95
Delta 1.33
% 8.9
B Fresh 19.56
Dry 17.93
Delta 1.63
% 9.1
C Fresh 16.64
Dry 15.28
Delta 1.36
% 8.9
Average % 9.05555
- 124: PSYCS , Site none, Tue 30-Jul-1991 22:38:04 GMT, PSYC 7.5m:
PSYC 7.5m:
The 7.5m psyc. was pulled out.
It has been replaced with .5m psyc. This
has occurred over the period of 21:45 to 22:30 gmt.
The psyc which was at 7.5m was put in at the .5m level
and is under the watchful eye of the aster crew.
This occurred at 22:45 gmt.
- 125: PSYCS , Site none, Tue 30-Jul-1991 23:54:21 GMT, PSYC @ .5m:
PSYC @ .5m:
The psyc at .5m has gone bad. If someone
asked me what is wrong, I would say it is a temperature
problem. When the psyc at 7.5m was removed, it came back
to the trailer for a quick look, giving it time to cool
down. We will leave it out to see what happens during
the night.
- 126: OPERATIONS , Site none, Tue 30-Jul-1991 23:56:37 GMT, LOGBOOK PROBLEMS:
LOGBOOK PROBLEMS:
Logbook started acting up again.
By removing the invl.cmt file and copying
invl.ini to invl.cmt, we got it going again.
- 127: STATUS , Site none, Wed 31-Jul-1991 16:16:22 GMT, SYSTEM STATUS:
SYSTEM STATUS:
System up and running. Auto_archive executed
ok. There were 12 to 15 spikes on the eddy 5m sonic.
The 5m flux sonic had a number of spikes.
The .5m psyc looks good now. Will monitor thru the day.
- 128: CHEMISTRY , Site none, Wed 31-Jul-1991 17:54:38 GMT, OZONE:
OZONE:
The ozone sensor is running again at
17:40 gmt.
- 129: PSYCS , Site none, Wed 31-Jul-1991 18:17:32 GMT, All psychrometer data appears to be mis
All psychrometer data appears to be missing for
about an hour around 2200 gmt on day 211. Steve
Semmer suspects a problem with the Ironics series
input board in ragwort.
- 130: LOG , Site none, Wed 31-Jul-1991 21:20:52 GMT, Irrigation of array area.
Irrigation of array area.
At approximately 1400 hrs today the irrigation water flooded the
furrows under the array. All furrows apparently are flooded.
- 131: PSYCS , Site none, Wed 31-Jul-1991 22:48:55 GMT, PSYC .5m:
PSYC .5m:
The .5m psyc is acting up again.
22:40 gmt.
- 132: RADIATION , Site none, Wed 31-Jul-1991 23:19:20 GMT, T.furrow & T.ridge:
T.furrow & T.ridge:
Based on the irrigation today, we have
confirmed that the T.furrow and T.ridge sensors
are reversed. Since it is near the end of the
project, we will leave them as they are. A test
will be done at teardown to confirm this.
- 133: FAST , Site none, Thu 01-Aug-1991 01:08:59 GMT, T fast work:
T fast work:
The bridge for the 5m.uw.fx t fast
was removed and looked at. The connector from
the transducer to the bridge circuit board was
loose. After fixing the bridge was re-installed.
This event took place from 00:20 to 01:00 GMT.
- 134: OPERATIONS , Site none, Thu 01-Aug-1991 02:12:13 GMT, COVAR on COSMOS:
COVAR on COSMOS:
Tryed to reduce the size of cosmos.covar by
doing a covar_split to jd 213 then renaming the file
to cosmos.covar. The running covar did not update the
file on the next 5 mionute interval. Therefore, I
killed the covar task and restarted it. This took
place around 01:45 GMT.
- 135: STATUS , Site none, Thu 01-Aug-1991 15:41:21 GMT, SYSTEM STATUS:
SYSTEM STATUS:
System is running. Both uw sonics looked
good during the night. All other sensors look good.
- 136: LEVELS , Site none, Thu 01-Aug-1991 16:14:27 GMT, LEVEL CHANGE:
LEVEL CHANGE:
The level signals were changed from scalar
uw to flux uw at 15:45 GMT.
- 137: CHEMISTRY , Site none, Fri 02-Aug-1991 18:02:31 GMT, OZONE:
OZONE:
The ozone sensor was brought down about
16:00 for calibrations. It was backup and
running at 18:00 GMT.
- 138: OPERATIONS , Site none, Fri 02-Aug-1991 19:07:28 GMT, MARIGOLD data collection stopped:
MARIGOLD data collection stopped:
marigold data collection was stopped and
restarted to enable analog channel 110 to be
used by Tony for his teco. This occurred at
19:03 GMT.
- 139: OPERATIONS , Site none, Fri 02-Aug-1991 19:11:59 GMT, CONFIG CHANGES:
CONFIG CHANGES:
Changes were made to the configuration
files to collect data from Tony's teco unit.
These changes were made from ~19:20 to 20:00 GMT.
prep.config: turned on channel 110 of marigold
did name is teco.cs
amplifer gain was set to 210 and
scaling set for 1000 to -1000 mvolts
did.config: added teco.cs -> 924
archive.config: added marigold channel 110 to
archive file condsamp
channel_config: turned on marigold 110 to 1 hz
- 140: OPERATIONS , Site none, Fri 02-Aug-1991 20:40:33 GMT, CONFIG CHANGES:
CONFIG CHANGES:
Changes were made to the configuration files
to collect data from Tony's TECO unit. These changes
took place over the time window of 19:15 to 19:45 GMT.
prep.config: turned on channel 110 of marigold
did name is teco.cs
amplifier gain set to 2
scaling set for -1000 to 1000 mvolts
did.config: added teco.cs -> 924
archive_config: added marigold channel 110 to archive
file condsamp
channel_config: turned on marigold 110 at 1 hz
- 141: OPERATIONS , Site none, Fri 02-Aug-1991 20:44:27 GMT, POWER glitch:
POWER glitch:
A power glitch took place around 20:00 GMT.
This was caused by an overload on the circuit going to
marigold. Tony had powered up the TECO and the air conditioner.
Circuit breaker was reset and everything was put back on the air.
Tony will leave off the air conditioner for a while.
- 142: CHEMISTRY , Site none, Fri 02-Aug-1991 20:46:58 GMT, ANOTHER FIRE!!
ANOTHER FIRE!!
Due to the power outage, the NO started another
fire at about 20:20 GMT. This blaze was quite larger then the
last one due to the cardboard box the straw was in. The ASTER
fire crew went to the rescue and put it out.
The OZONE sensor is off the air.
- 143: OPERATIONS , Site none, Fri 02-Aug-1991 20:57:32 GMT, MARIGOLD TURNED ON:
MARIGOLD TURNED ON:
Due to the confusion, marigold was not turned
on until now, 20:55 GMT (data_on).
- 144: OPERATIONS , Site none, Sat 03-Aug-1991 15:40:15 GMT, COSMOS DOWN:
COSMOS DOWN:
Cosmos was down this morning, restarted at
15:40 GMT.
Based on printout from tape archive, cosmos went down at
05:45 GMT.
- 145: OPERATIONS , Site none, Sat 03-Aug-1991 19:30:15 GMT, THE DAY of TURMOIL (214):
THE DAY of TURMOIL (214):
Below is a recap of what happened in the
afternoon of day 214.
Tony was installing the o3 conditional sampler
when a cicuit breaker in the transformer blew. This was
caused by an overload of the conditional sampler AC and
the TECO unit running on the line with the eddy tower
equipment. Power was restored and everything looked fine.
Approximately 10 to 15 minutes later, Dick Pearson's straw
ignited and the ASTER firefighters were called to work.
After putting the fire out, Tony was working again with the
conditional sampler and power went down again. This resulted
in a fuse in the transformer to blow. Unfortunately, we did
not have a spare fuse. At the same time, cocklebur decided
to quit working. Tony and Steve went to Fresno to get a new
fuse and got power restored to the system late in the evening.
Data was lost from about 21:00 gmt to 03:30 gmt.
- 146: STATUS , Site none, Sun 04-Aug-1991 15:38:29 GMT, SYSTEM STATUS:
SYSTEM STATUS:
The system is up and running. There
were no major catastrophes during the night.
The eddy uw sonic looked good last night with
very few spikes. The flux uw is still spiking
alot. All other sensors look good.
Dick Pearson turned off his ozone machine at 03:20 GMT.
- 147: FAST , Site none, Sun 04-Aug-1991 16:32:51 GMT, The 5m uw fast T has not been drifting
The 5m uw fast T has not been drifting
as wildly since the connector in the bridge
was fixed on JD 213 at 0100. This appears
to have cured that problem.
- 148: CHEMISTRY , Site none, Sun 04-Aug-1991 16:34:04 GMT, Fast ozone NO was turned off at 0320 gm
Fast ozone NO was turned off at 0320 gmt
on JD 216.
- 149: FAST , Site none, Sun 04-Aug-1991 18:03:43 GMT, The 5m uw fast T on the eddy tower stil
The 5m uw fast T on the eddy tower still
appears to have a larger covariance than
the 5 m uw fast T on the flux tower and
the 10 m ati fast T that was moved down
to 5 m. They appear to agree at night,
but to disagree during the day. We are
moving the 10 m ati fast T over to the
eddy tower since it has agreed quite well
with the 5 m uw eddy fast T since Steve
fixed the connector in its bridge.
Moved the 10m ati T from 1700 to 1900,
then calibrated from 1900 to 1925.
When the chamber reference reads 31.6
the probe reads 36.0. Calibration
data collected in projects/.../results/
tfast_10ma5m.216.
Calibrated the 5 m uw flux T fromm
1925 to 2015.
When the chamber reference reads 27.3
the probe reads 23.5. Calibration
data collected in projects/.../results/
tfast_flux5m.216.
Accidently removed the tfast_flux5m.216
file!!
- 150: OPERATIONS , Site none, Sun 04-Aug-1991 23:43:35 GMT, MARIGOLD DOWN:
MARIGOLD DOWN:
marigold went down at ~23:30 gmt.
Backup and archiving at 23:40 gmt.
Had to reset power.
- 151: COND , Site none, Mon 05-Aug-1991 15:57:05 GMT, Cond. samp. bag tests
Cond. samp. bag tests
On Sunday, 4 Aug, (yesterday) in the afternoon two sets of all valves open test
collections were made.
First test ; 16:16 - 16:31,
Second test; 16:50 - 17:05
- 152: COND , Site none, Mon 05-Aug-1991 16:00:22 GMT, Conditional sampler bag collection runs
Conditional sampler bag collection runs.
A full set of hourly collections was started at 08:30.
The winds are light and variable but the weather looks normal and winds
are expected to increase.
- 153: OPERATIONS , Site none, Mon 05-Aug-1991 19:58:15 GMT, COVAR FILES:
COVAR FILES:
Since 19:30 gmt, I have been playing with
the covar files to reduce the size to get back more
disk space. The present time is 20:00 gmt.
- 154: RADIATION , Site none, Mon 05-Aug-1991 20:50:13 GMT, RADIATION DATA:
RADIATION DATA:
From ~20:35 to 20:50 gmt, the radiation
data has been played with trying to solve the
problem with the PAR sensor.
At ~21:10 gmt, the PAR signal was fixed. The problem
was due to a bad AD7510 switching chip on the amplifier
filter board.
- 155: SOFTWARE , Site none, Tue 06-Aug-1991 00:48:29 GMT, Software wish list:
Software wish list:
display in cockpit the time since each
window was last cleared or the time at
which it was cleared.
cockpit-type display of covariances
single button to clear all cockpit windows
covar file independent of adams
plotting across jday boundaries
- 156: STATUS , Site none, Tue 06-Aug-1991 17:01:34 GMT, SYSTEM STATUS:
SYSTEM STATUS:
System is up and running. It appears we lost
some data last night due to the disk filling up. The same
thing happened yesterday around 13:00 gmt. Data did not
started archiving again until 13:30 gmt when the bkfiles_kill
routine ran.
- 157: OPERATIONS , Site none, Tue 06-Aug-1991 18:41:56 GMT, MARIGOLD ON/OFF:
MARIGOLD ON/OFF:
Turned marigold off and on to try to
get new conditional sampler running. This occurred
from ~18:30 to 18:40 gmt.
- 158: OPERATIONS , Site none, Tue 06-Aug-1991 21:37:28 GMT, POWER DOWN @ TOWERS:
POWER DOWN @ TOWERS:
At ~21:15 gmt, the power at the towers
went down. The main breaker in the distribution
box blew. Everything came up ok and we were archiving
data at ~21:25 gmt.
The reason for the failure may have been caused
by the conditional sampler unit Tony was running. It
may have been due to everything, ie, AC units, kicking
on at the same time.
- 159: PSYCS , Site none, Tue 06-Aug-1991 23:07:41 GMT, PSYC .5m:
PSYC .5m:
The .5m wet bulb has started acting up
at ~21:40 gmt.
- 160: STATUS , Site none, Wed 07-Aug-1991 15:42:01 GMT, SYSTEM STATUS:
SYSTEM STATUS:
The system is up and running.
Teardown will start today. Calibration
files will be logged for tfast and sonic zeros.
- 161: PROPS , Site none, Wed 07-Aug-1991 15:44:10 GMT, PROP 7.5m:
PROP 7.5m:
The wind spped on the 7.5m prop has
gone to zero. Past experence says it is the
debouncing chip.
- 162: SOIL , Site none, Wed 07-Aug-1991 18:16:56 GMT, Soil sample data
Soil sample data
Furrow July 30 July 31 Aug 2 Aug 3 Aug 4 Aug 5
------
sample A
wet 18.46 28.82 37.81 29.99 43.47 23.60
dry 17.43 27.13 27.35 21.78 31.50 20.37
------
delta 1.03 1.69 10.46 8.21 11.97 3.23
%h2o 5.9 6.2 38.2 37.7 38.0 15.9
sample B
wet 21.12 26.20 39.80 36.08 38.33 24.14
dry 20.15 24.61 29.20 26.10 28.22 20.71
------
delta 1.27 1.59 10.60 9.98 10.11 3.43
%h2o 6.3 6.5 36.3 38.2 35.8 16.6
sample C
wet 23.39 26.35 39.25 27.60 38.66 23.25
dry 22.00 24.81 28.48 20.00 27.79 20.05
------
delta 1.39 1.54 10.77 7.60 10.97 3.20
%h20 6.3 6.2 37.8 38.0 39.5 16.0
Avg. % 6.2 6.3 37.4 38.0 37.8 16.2
Ridge
-----
sample A
wet 20.88 21.80 19.01 27.03 26.65 38.72
dry 19.28 20.01 15.81 21.61 22.19 30.20
------
delta 1.60 1.79 3.20 5.42 4.46 8.52
%h20 8.3 8.9 20.2 25.1 20.1 28.2
sample B
wet 22.92 22.14 21.68 22.92 26.03 49.25
dry 21.06 20.26 17.94 18.46 21.78 38.05
------
delta 1.86 1.88 4.74 4.46 4.25 11.20
%h20 8.8 9.3 26.4 24.2 19.5 29.4
sample C
wet 21.83 33.81 24.80 21.33 26.00 43.44
dry 20.13 30.95 20.34 17.62 21.54 34.53
------
delta 1.70 2.86 4.46 3.71 4.46 8.91
%h20 8.4 9.2 21.9 21.1 20.7 25.8
Avg. % 8.5 9.1 22.8 23.5 20.1 27.8
- 163: RADIATION , Site none, Tue 12-Nov-1991 18:47:19 GMT, Cal factors for rad and soil sensors
Calibration factors for ragwort radiation and soil sensors
(The tables shows the calibration factors available from the calibration
data, and allows an intercomparison with the prep.config factors used)
On 14 Nov 91 a copy of /home/aster/projects/SJVAQS/ops1/prep.config was compared
with these calibration factors. There was agreement except for 108 r.net
CHANNEL SENSOR S/N CAL calibration factors
100 pyg.in.rad 27907F3 3.6 uv/W m-2 linear cal 2.1193E-1, 0.0
gain = 200
Date of this calibration = ## ## ##
(prep.config: Checked 14 Nov 91 )
101 pyg.out.rad 26416F3 3.69 uv/W m-2 linear cal 2.0676E-1, 0.0
gain = 200
Date of this calibration = ## ## ##
(prep.config: Checked 14 Nov 91 )
102 psp.in.rad 26214F3 8.72 uv/W m-2 linear cal 8.7496E-2, 0.0
gain=200
Date of this calibration = ## ## ##
(prep.config: Checked 14 Nov 91 )
103 psp.out.rad 26226F3 8.85 uv/W m-2 linear cal 8.6210E-2, 0.0
gain=200
Date of this calibration = ## ## ##
(prep.config: Checked 14 Nov 91 )
108 r.net 90076 13.4 W m-2/mV linear cal 2.0447E-2, 0.0
gain=100
Date of this calibration = ## ## ##
(prep.config: 2.0294E-2 , 0.0 )
109 t.surface 1041 100degree C/V linear cal 1.5259E-3, 25
offset=-25degree
gain=10
Date of this calibration = ## ## ##
(prep.config: Checked 14 Nov 91 )
113 par.rad Q9125 -143.47 linear cal 3.6246E-1, 0.0
umole/m-2 s/uA
gain=100
resistance=604ohm
Date of this calibration = ## ## ##
(prep.config: Checked 14 Nov 91 )
CHANNEL SENSOR CAL prep.config factor used
104 pyg.in.dome A0 = 3.5754E-3 c=thermistor 3.5754E-3
A1 = 2.6846E-4 2.6847E-4
A2 = 6.1043E-6 6.1043E-6
A3 =-3.6998E-6 3.6998E-6
offset = 4.8
Date of this calibration = ## ## ##
105 pyg.in.case A0 = 3.5764E-3 c=thermistor All OK 14nov91
A1 = 2.6860E-4
A2 = 6.3499E-6
A3 =-3.6393E-6
offset = 4.8
Date of this calibration = ## ## ##
106 pyg.out.dome A0 = 3.5829E-3 c=thermistor All OK 14nov91
A1 = 2.8073E-4
A2 = 1.7521E-5
A3 =-9.3759E-7
offset = 4.8
Date of this calibration = ## ## ##
107 pyg.out.case A0 = 3.5850E-3 c=thermistor All OK 14nov91
A1 = 2.8512E-4
A2 = 2.1575E-5
A3 = 1.2726E-7
offset = 4.8
Date of this calibration = ## ## ##
CHANNEL SENSOR CAL cal factors
117 Tsoil.a.index linear cal 1.5259E-4 ,0.0
offset =
gain=
Date of this calibration = ## ## ##
(prep.config: Checked )
118 Tsoil.b.index linear cal 1.5259E-4 ,0.0
offset =
gain=
Date of this calibration = ## ## ##
(prep.config: Checked )
119 Tsoil.c.index linear cal 1.5259E-4 ,0.0
offset =
gain=
Date of this calibration = ## ## ##
(prep.config: Checked )
CHANNEL SENSOR CAL prep.config factor used
116 Tsoil.a (mean) c=thermistor All OK 19 Nov91
A0 = 3.5869E-3
A1 = 2.6991E-4
A2 = 9.3435E-6
A3 =-3.5796E-6
offset = 4.7
Tsoil.a.1cm (0band)
A0 = 3.5920E-3
A1 = 2.6757E-4
A2 = 1.0719E-5
A3 =-3.6759E-6
offset = 4.7
Tsoil.a.3cm (1band)
A0 = 3.5932E-3
A1 = 2.6837E-4
A2 = 1.0903E-5
A3 =-3.6485E-6
offset = 4.7
Tsoil.a.5cm (2band)
A0 = 3.5931E-3
A1 = 2.6774E-4
A2 = 1.0867E-5
A3 =-3.6422E-6
offset = 4.7
Tsoil.a.7cm (3band)
A0 = 3.5925E-3
A1 = 2.6795E-4
A2 = 1.1015E-5
A3 =-3.6040E-6
offset = 4.7
Date of this calibration = 30 May 91
118 Tsoil.b (mean) c=thermistor All OK 19 Nov91
A0 = 3.5495E-3
A1 = 2.8734E-4
A2 = 4.3827E-6
A3 = 6.5799E-7
offset = 5.0
Tsoil.b.1cm (0band)
A0 = 3.5490E-3
A1 = 2.8731E-4
A2 = 4.2973E-6
A3 = 6.3137E-7
offset = 5.0
Tsoil.b.3cm (1band)
A0 = 3.5509E-3
A1 = 2.8736E-4
A2 = 4.3523E-6
A3 = 6.6114E-6
offset = 5.0
Tsoil.b.5cm (2band)
A0 = 3.5496E-3
A1 = 2.8727E-4
A2 = 4.2113E-6
A3 = 5.9975E-7
offset = 5.0
Tsoil.b.7cm (3band)
A0 = 3.5487E-3
A1 = 2.8718E-4
A2 = 4.4353E-6
A3 = 6.8631E-7
offset = 5.0
Date of this calibration = 30 May 91
120 Tsoil.c (mean) c=thermistor All OK 19Nov91
A0 = 3.5287E-3
A1 = 2.9799E-4
A2 = 3.7889E-7
A3 = 4.7208E-6
offset = 5.25
Tsoil.c.1cm (0band)
A0 = 3.5267E-3
A1 = 2.9787E-4
A2 = 3.0097E-7
A3 = 4.6895E-6
offset = 5.25
Tsoil.c.3cm (1band)
A0 = 3.5290E-3
A1 = 2.9797E-4
A2 = 3.0577E-7
A3 = 4.6887E-6
offset = 5.25
Tsoil.c.5cm (2band)
A0 = 3.5297E-3
A1 = 2.9813E-4
A2 = 3.2779E-7
A3 = 4.6919E-6
offset = 5.25
Tsoil.c.7cm (3band)
A0 = 3.5285E-3
A1 = 2.9794E-4
A2 = 4.7164E-7
A3 = 4.7596E-6
offset = 5.25
Date of this calibration = 30 May 91
CHANNEL SENSOR S/N CAL cal factors
CHANNEL SENSOR S/N CAL cal factors
CHANNEL SENSOR S/N CAL cal factors
110 G1.8cm blue#band 42.6 W m-2/mV linear cal 3.2502E-2, 0.0
gain=200
Date of this calibration = ## ## ##
(prep.config: Checked 14 Nov 91 )
111 G2.8cm red#band 38.4 W m-2/mV linear cal 2.9298E-2, 0.0
gain=200
Date of this calibration = ## ## ##
(prep.config: Checked 14 Nov 91 )
112 G3.8cm yellow#band 38.4 W m-2/mV linear cal 2.9298E-2, 0.0
gain=200
Date of this calibration = ## ## ##
(prep.config: Checked 14 Nov 91 )
- 164: LOG , Site none, Wed 13-Nov-1991 17:45:38 GMT, SJVAQS data requested by Bill Massman;
SJVAQS data requested by Bill Massman; massman.req
This listing checked by Tony and Bill on Tuesday 26 Nov 91.
The request is for 30 minute averages reported at 15 and 45 minutes
past the hour. The time to be used is Pacific Daylight Time. (PDT = GMT - )
When data is absent or suspect use -999
All secondary products can be calculated from 5 minute covars.
Nf refers to north furrow, r refers to ridge, and Sf refers to south furrow.
TIME Report the time in the form YYJJJHHMM. eg 911900345
ITBRK =1 if previous 30 minute data is absent
=0 if previous 30 minute data is present
SWO W m-2, (Short Wave Out), channel: ragwort 103 psp.out.rad
SWI W m-2, (Short Wave In), channel: ragwort 102 psp.in.rad
LWO W m-2, (Long Wave Out), channels: ragwort 101 pyg.out.rad
ragwort 106 pyg.out.dome
ragwort 107 pyg.out.case
LWO = pyg.out.rad
- (3.5 * 5.67*10**-8)(pyg.out.dome**4 - pyg.out.case**4)
LWI W m-2, (Long Wave In), channels: ragwort 100 pyg.in.rad
ragwort 104 pyg.in.dome
ragwort 105 pyg.in.case
LWI = pyg.in.rad
- (3.5 * 5.67*10**-8)(pyg.in.dome**4 - pyg.in.case**4)
Rn W m-2, (Net radiation), channel: ragwort 108 (net).rad
Nf REFERS TO NORTH FURROW, r REFERS TO RIDGE,
AND Sf REFERS TO SOUTH FURROW.
G8Nf W m-2, (Soil ht flux 8cm N furrow), channel: ragwort 110(G1).8cm
G8r W m-2, (Soil ht flux 8cm ridge), channel: ragwort 111(G2).8cm
G8Sf W m-2, (Soil ht flux 8cm S furrow), channel: ragwort 112(G3).8cm
G8 W m-2, (Soil ht flux 8cm mean), G8 = mean (G8Nf, G8r, G8Sf)
GNf W m-2, (Soil ht flux surface N furrow),
GNf(i) = G8Nf(i)
+ Csoilf*(0.08)*(TsoilNf(i+1)-TsoilNf(i-1))/(t(i+1)-t(i-1))
where (i-1) refers to data recorded at t(i-1)seconds
and (i+1) refers to data recorded at t(i+1)seconds
and where Csoilf = (1.070 + 6.12 wf) * 10**6
(J degK-1 m-3)
(wf is listed in file gravmoist and logbook entry 167)
Gr W m-2, (Soil ht flux surface ridge),
Gr(i) = G8r(i)
+ Csoilr*(0.08)*(Tsoilr(i+1)-Tsoilr(i-1))/(t(i+1)-t(i-1))
where (i-1) refers to data recorded at t(i-1)seconds
and (i+1) refers to data recorded at t(i+1)seconds
and where Csoilr = (0.993 + 5.7 wr) * 10**6
(J degK-1 m-3)
(wr is listed in file gravmoist and logbook entry 167)
GSf W m-2, (Soil ht flux surface S furrow),
GSf(i) = G8Sf(i)
+ Csoilf*(0.08)*(TsoilSf(i+1)-TsoilSf(i-1))/(t(i+1)-t(i-1))
where (i-1) refers to data recorded at t(i-1)seconds
and (i+1) refers to data recorded at t(i+1)seconds
and where Csoilf = (1.070 + 6.12 wf) * 10**6
(J degK-1 m-3)
(wf is listed in file gravmoist and logbook entry 167)
G W m-2, (Soil ht flux surface mean), G = mean (GNf, Gr, GSf)
E mg m-2 s-1 (Water vapor flux from Krypton hygrom and UW sonic at 5meters)
channels: ragwort 109 (q_h2o)_uv.5m
ragwort 200 (w).5m.uw.ed
output is in g m-2 s-1, multiply by 10**3
MAY NEED PRESSURE AND TEMPERATURE CORRECTION, SEE STEVE O.
LE W m-2, (Latent ht flux),
E * 2.42 = LE
(mg m-2 s-1)(J mg-1) (J s-1 m-2)=(W m-2)
Hs deg ms-1, (Sensible ht flux), channels: marigold 108 (t).5m.uw.ed
marigold 200 (w).5m.uw.ed
H W m-2, (Sensible ht flux),
Hs * 1.17 * 10**3 = H
(deg ms-1)(J m-3 deg-1) (J s-1 m-2)=(W m-2)
PAR umole m-2 s-1, (Photosynthetically Active Radiation),
channel: ragwort 113 par.rad
THIS DATA DOES EXIST
BILL WILL CHECK ON UNITS REQUIRED.
P kPa, (Pressure), channel: cosmos 200(p1,p2,p3).baro
Take the mean of the three sensors.
ustar ms-1, (Friction velocity), Use the data from the Flux Tower 5m sonic.
channels: cosmos 201(u).5m.uw.ed
cosmos 201(w).5m.uw.ed
SEE STEVE ONCLEY WITH REFERENCE TO THE ROTATION OF WIND COMPONENTS
zoL (Stability parameter)
zoL = -kgz Hs/(ustar**3 (Ta5+273.16))
= -19.62*Hs*(ustar**-3)*((Ta5+273.16)**-1)
Tsurf degC, (Infrared surface temp of leaf and soil seen from the dark-horse)
channel: ragwort 109(t).surface
Tsoil degC, (Infrared soil surface)
THIS DATA IS NOT AVAILABLE.
Tsoil8r degC, (Soil temp 8cm ridge), channel: ragwort 201 (T.furrow.8cm)
NOTE THAT RIDGE TEMPERATURE IS REPORTED FROM FURROW CHANNEL
Tsoil8Nf degC, (Soil temp 8cm furrow), channel: ragwort 201 (T.ridge.8cm)
NOTE THAT FURROW TEMPERATURE IS REPORTED FROM RIDGE CHANNEL
Tsoil8 degC, (Soil temp 8cm mean), Tsoil8 = mean(Tsoil8r, Tsoil8f)
THE EXISTING DATA IN THE FOLLOWING CHANNELS:
ragwort 116 (Tsoil).a
ragwort 117 (Tsoil).a.index
ragwort 118 (Tsoil).b
ragwort 119 (Tsoil).b.index
ragwort 120 (Tsoil).c
ragwort 121 (Tsoil).c.index
NEED TO BE DEMULTIPLEXED TO YIELD THE FOLLOWING PARAMETERS.
(which are the soil temps N furrow, ridge, and S furrow at depths 1, 3, 5, 7 cm)
Tsoil1Nf degC
Tsoil3Nf degC
Tsoil5Nf degC
Tsoil7Nf degC
TsoilNf degC The average of the 1, 3, 5, 7, cm Nf temperatures
Tsoil1r degC
Tsoil3r degC
Tsoil5r degC
Tsoil7r degC
Tsoilr degC The average of the 1, 3, 5, 7, cm r temperatures
Tsoil1Sf degC
Tsoil3Sf degC
Tsoil5Sf degC
Tsoil7Sf degC
TsoilSf degC The average of the 1, 3, 5, 7, cm Sf temperatures
Ta.5 degC, (Atmospheric temp at 0.5m), channel: ragwort 202(tdry)..5m
Ta1.5 degC, (Atmospheric temp at 1.5m), channel: ragwort 203(tdry).1.5m
Ta3 degC, (Atmospheric temp at 3.0m), channel: ragwort 204(tdry).3m
Ta5 degC, (Atmospheric temp at 5.0m), channel: ragwort 205(tdry).5m
Ta7.5 degC, (Atmospheric temp at 7.5m), channel: ragwort 206(tdry).7.5m
Ta10 degC, (Atmospheric temp at 10.m), channel: ragwort 207(tdry).10m
For the following use twet and tdry in degrees K
degrees K = degrees C + 273.16
ea = (2.1718 * 10**7 * exp(-4157/twet-33.91))
- (8.42 * 10**-4 * ((twet-33.91)/twet)**2 * P(tdry-twet))
ea.5 kPa, (Water vap. pres. at 0.5m), channels: ragwort 202(tdry,twet)..5m
cosmos 200(p1,p2,p3,).baro
ea1.5 kPa, (Water vap. pres. at 1.5m), channels: ragwort 203(tdry,twet).1.5m
cosmos 200(p1,p2,p3,).baro
ea3 kPa, (Water vap. pres. at 3.0m), channels: ragwort 204(tdry,twet).3m
cosmos 200(p1,p2,p3,).baro
ea5 kPa, (Water vap. pres. at 5.0m), channels: ragwort 205(tdry,twet).5m
cosmos 200(p1,p2,p3,).baro
ea7.5 kPa, (Water vap. pres. at 7.5m), channels: ragwort 206(tdry,twet).7.5m
cosmos 200(p1,p2,p3,).baro
ea10 kPa, (Water vap. pres. at 10.m), channels: ragwort 207(tdry,twet).10m
cosmos 200(p1,p2,p3,).baro
WD degrees, (Wind direction at 5 meters),
channel: cosmos 205(u,v).5m.prop
Ua1.5 m s-1, (Wind speed at 1.5 meters), channel: cosmos 203(u,v).1.5.prop
Ua3 m s-1, (Wind speed at 3.0 meters), channel: cosmos 204(u,v).3.prop
Ua5 m s-1, (Wind speed at 5.0 meters), channel: cosmos 205(u,v).5.prop
Ua7.5 m s-1, (Wind speed at 7.5 meters), channel: cosmos 206(u,v).7.5.prop
Ua10 m s-1, (Wind speed at 10. meters), channel: cosmos 207(u,v).10.prop
CO2C mg m-3, (Carbon dioxide concentration),
channel: marigold 201(co2).5m
Output is in g m-3. Multiply by 10**3
CO2V ppmv, (Carbon dioxide mixing ratio),
CO2C * 0.19 * (Ta5+273.16) * P**-1 = CO2V
(mg m-3) (ppm/mg m-3) (ppmv)
Where Ta5 (degC) and P (kPa)
FCO2C mg m-2 s-1, (CO2 mass flux), channels; marigold 201(co2).5m
marigold 200(w).5m.uw.ed
Output is in g m-2 s-1. Multiply by 10**3
FCO2E W m-2, (CO2 equivalent energy flux), FCO2C * 11.3 = FCO2E
(mg m-2 s-1)(J mg-1) (J s-1 m-2)
O3 ppbv, (Ozone mixing ratio), channel: marigold 100(o3).5m.fast
FO3 ppbv mms-1 (Ozone flux), channels: marigold 100(o3).5m.fast
marigold 200(w).5m.uw.ed
Output is in ppbv ms-1. Multiply by 10**3
- 165: LOG , Site none, Thu 14-Nov-1991 22:14:26 GMT, Status of calibrations:
Status of calibrations:
A. Radiation sensors (Analog).
Eppley Precision Spectrometer uplooking, SWI, psp.in.rad,
Eppley Precision Spectrometer downlooking, SWO, psp.out.rad,
Eppley Pyrgeometer uplooking, LWI, (pyg.in.rad, pyg.in.dome, pyg.in.case)
Eppley Pyrgeometer downlooking, LWO, (pyg.out.rad, pyg.out.dome, pyg.out.case)
Net radiometer, Rn, (net).rad
Analog calibration factors for these sensors are on file in the calibration lab.
Logbook entry 163 lists all these calibration factors.
They have been checked against those used in the
SJVAQS project prep.config file.
There was agreement except for the r.net where the wrong
calibration was entered. There has been a mix-up between
the two net radiometers and their calibrations. As the difference is only
0.75% the value will not be changed.
Calibration factors for the thermistors measuring the dome and
case temperatures are on file in the calibration lab.
Logbook entry 163 lists all these calibration factors.
They have been checked against those used in the
SJVAQS project prep.config file.
B. Soil heat flux plates (Analog).
The logbook entry 163 lists the calibration factors supplied by the manufacture.
Logbook entry 163 lists all these calibration factors.
They have been checked against those used in the
SJVAQS project prep.config file.
C. Soil temperatures (Serial).
The sensor calibrations were carried out and loaded prior to deployment.
We have verified that the 8 cm soil temperature sensors were interchanged.
The temperature reported for Tsoil8r corresponds to that for Tsoil8f and
the temperature reported for Tsoil8f corresponds to that for Tsoil8s.
D. Soil temperatures (Multiplexed analog).
The three multiplexed soil temperature arrays;
a(1,3,5,7), b(1,3,5,7),and c(1,3,5,7) each have complete sets of
thermistor coefficients which are noted in logbook entry 163.
For the purpose of generating real-time temperatures, however, only mean sets of
thermistor coefficients were used during the deployment.
For the post deployment data processing which involves de-multiplexing the
complete sets given in logbook entry 163 should be used.
E. Wind speed and direction (Serial).
The sensor calibrations were carried out and loaded prior to deployment.
The locations of the propvanes on the tower were verified during the deployment.
The alignment of the propvanes in the field was determined using a theodolite
twice during the SJVAQS deployment, after set-up and during teardown.
See logbook entries # and #.
F. Wet and dry temperatures (Serial).
The sensor calibrations were carried out and loaded prior to deployment.
The locations of the psychrometers on the tower were verified during the
deployment.
G. Pressure (Serial).
The sensor calibrations were carried out and loaded prior to deployment.
H. Sonic anemometers (Serial).
The despiked data is now available in stout/rdss/aster/projects/SJVAQS91/ops1
For the period before JD 204 use cal routine sonic_uw_4b
For the period after JD 204 use the cal routine sonic_uw_3b
I. AIR fast temperature sensors (Analog).
This data is alright
J. Krypton hygrometer (Serial).
This data is alright
K. Infra red CO2 sensor (Serial).
This data is alright
L. Fast ozone sensor (Analog).
Dick Pearson will provide the calibration factors for this sensor.
- 166: SOIL , Site none, Fri 15-Nov-1991 23:51:54 GMT, Heat capacity of cotton field soil: soi
Heat capacity of cotton field soil: soilheatcap
Updated by Tony and Bill 26 Nov 91
Bill Massman reports that from the information he has from David Grantz the
soil heat capacities for the cotton field soils are as follows:
Ridge
Csoilr = 0.993 + 4.19 (theta)r
MJ degreeK-1 m-3
where (theta)r = volumetric soil moisture = gravimetric soil moisture * 1.36
(in file gravmoist)
Furrow
Csoilf = 1.070 + 4.19 (theta)f
MJ degreeK-1 m-3
where (theta)f = volumetric soil moisture = gravimetric soil moisture * 1.46
(in file gravmoist)
- 167: SOIL , Site none, Sat 16-Nov-1991 00:16:33 GMT, Gravitational soil moisture results: gr
Gravitational soil moisture results: gravmoist
Redone 25 Nov 91
Mean values for furrow and ridge extracted from
logbook entries 4,27,97,123,& 162
Date Mean Ridge Mean Furrow
wr wf
July 7 .248 .410
8 .221 .343
9 .213 .254
10 [.198] [.223]
11 .184 .192
12 [.185] [.150]
13 .186 .109
14 .150 .123
15 .144 .087
16 .133 .077
17 [.127] [.077]
18 .121 .078
19 [.120] [.073]
20 [.118] [.068]
21 [.116] [.063]
22 .115 .058
23 .101 .068
24 .092 .073
25 .107 .065
26 [.103] [.064]
27 [.099] [.062]
28 [.095] [.061]
29 .091 .060
30 .085 .062
31 .091 .063
Aug 1 [.090] [.060]
2 .228 .374
3 .235 .380
4 .201 .378
5 .278 .162
- 168: LOG , Site none, Tue 19-Nov-1991 23:23:16 GMT, Compendium of conversion factors used f
Compendium of conversion factors used for data processing.
CHECK ALL THESE NUMBERS BEFORE USING
1. 1 J s-1 = 1 Watt
2. degree K = degree C + 273.16
3. Gravimetric soil moisture =
(mass of fresh soil - mass of dry soil)/mass of dry soil
4. Calculation of water vapour pressure
twet and tdry in degree K
e = (2.1718 * 10**7 * exp(-4157/twet-33.91))
-(8.42 * 10**-4 * ((twet-33.91)/twet)**2 * P(tdry - twet))
5. Stefan/Boltzman relationship.
The black body radiation assumes an emissivity factor of 1.0
Emitted energy = 5.67 * 10**-8 T**4
(W m-2) (degree K)
6. The conversion for ppmv and mg m-3 for CO2
Molar volume = 22.414 liter (stp)
= 2.2414 * 10**-2 m3(stp).
= 2.2414 * 10**-2 * (101.3/P) * (T/273.16) m3(ambient)
where P in kPa and T in degreeK
= 2.2414 * 10**-2 * (101.3/P) * ((Ta5 +273.16) /273.16) m3
Molecular weight of CO2 = 44.01 g
Therefore:
44.01 g CO2 = 2.2414 * 10**-2 * (101.3/P) * (Ta5 +273.16 /273.16) m3
1.00 g CO2 = 2.2414/44.01 * 10**-2 * (101.3/P) * (Ta5 +273.16 /273.16) m3
1.00 mg CO2 = 2.2414/44.01 * 10**-5 * (101.3/P) * (Ta5 +273.16 /273.16) m3
1.00 m3 CO2 = (2.2414/44.01*10**-5*(101.3/P)*(Ta5+273.16/273.16))**-1 mg
1 m3 CO2 m-3 = (2.2414/44.01*10**-5*(101.3/P)*(Ta5+273.16/273.16))**-1 mg m-3
= 10**6 ppmv
1 ppmv CO2 = 10**-6 * (1 m3 CO2 m-3)
= 10**-6 *
(2.2414/44.01*10**-5*(101.3/P)*(Ta5+273.16/273.16))**-1 mg m-3
= 5.29 * P/(Ta5+273.16) mg m-3
and conversely
1 mg m-3 CO2 = 1.89 * 10**-1 * (Ta5+273.16)/P ppmv
To use these factors
CO2V = CO2M * 1.89 * 10**-1 * (Ta5+273.16)/P
ppmv mg m-3
7. The conversion for ppbv and ug m-3 for O3
Molar volume = 22.414 liter (stp)
= 2.2414 * 10**-2 m3(stp).
= 2.2414 * 10**-2 * (101.3/P) * (T/273.16) m3(ambient)
where P in kPa and T in degreeK
= 2.2414 * 10**-2 * (101.3/P) * ((Ta5 +273.16) /273.16) m3
Molecular weight of O3 = 48.00 g
Therefore:
48.00 g O3 = 2.2414 * 10**-2 * (101.3/P) * (Ta5 +273.16 /273.16) m3
1.00 g O3 = 2.2414/48.00 * 10**-2 * (101.3/P) * (Ta5 +273.16 /273.16) m3
1.00 ug O3 = 2.2414/48.00 * 10**-8 * (101.3/P) * (Ta5 +273.16 /273.16) m3
1.00 m3 O3 = (2.2414/48.00*10**-8*(101.3/P)*(Ta5+273.16/273.16))**-1 ug
1 m3 O3 m-3 = (2.2414/48.00*10**-8*(101.3/P)*(Ta5+273.16/273.16))**-1 ug m-3
= 10**9 ppbv
1 ppbv O3 = 10**-9 * (1 m3 CO2 m-3)
= 10**-9 *
(2.2414/48.00*10**-8*(101.3/P)*(Ta5+273.16/273.16))**-1 ug m-3
= 5.77 * P/(Ta5+273.16) ug m-3
and conversely
1 ug m-3 O3 = 1.73 *10**-1 * (Ta5+273.16)/P ppbv
To use these factors remember that FO3V is reported in ppbv MILLEMETER s-1
O3M = O3V * 5.77 * P/(Ta5+273.16) ug m-3
ug m-3 ppbv
FO3M = FO3V * 10**3 * 5.77 * P/(Ta5+273.16) ug m-3
ug m-2 s-1 ppbv mms-1
8. Conversion factor for water vapor flux
ie the amount of energy required to evaporate a mass of water.
1.0 W m-2 = 2.42 MJ kg(H2O)**-1
1.0 kg = 2.42 MJ
1.0 kg s-1 = 2.42 MJ s-1
= 2.42 * 10**6 W
9. Conversion factor for sensible heat flux
1.0 degree K m s-1 = 1.17 *10**3 J m-2
CHECK THIS
10. Conversion factor for carbon dioxide flux
11. Conversion factor for ozone flux
- 169: LOG , Site none, Thu 05-Mar-1992 21:56:27 GMT, GRAPHICAL OUTPUT FOR SJVAQS REPORT.
GRAPHICAL OUTPUT FOR SJVAQS REPORT.
A. DAILY OUTPUT OF SELECTED PARAMETERS.
Five panels per page with one page per day.
Each day starts at midnight local time.
Index the date and time on the X axis with local time and date
along the bottom axis and JD and gmt along the top.
Use multiple scaling for the different parameters.
Maintain constant scaling throughout series.
1. T degrees C (Ta5), p kPa (P), and q gkg-1 (q5).
2. Wind speed ms-1 (Ua5), and wind direction degrees (WD).
3. Net radiation Wm-2 (Rn), sensible heat flux Wm-2 (H), latent heat
flux Wm-2 (LE), and surface heat flux Wm-2 (G).
4. Stability (zoL), and stress cm s-1 (ustar).
5. Photosynthetically active radiation umole m-2 s-1 (PAR), ozone mass
depositional flux ug m-2 s-1 (FO3M), and carbon dioxide mass depositional
flux mg m-2 s-1 (FCO2M)
B. OUTPUT FOR AN ARCHETYPAL DAY (10 JULY 1991 = 910757,0700 - 910758,0700.)
CHECK THIS DATE AND JULIAN DAY
Three panels per page.
The day starts at midnight local time.
Index the date and time on the X axis with local time and date
along the bottom axis and JD and gmt along the top.
Use multiple scaling for the different parameters.
1. Radiation: SWI, SWO, LWI, LWO, and Rn.
all in W m-2
2. Energy components: Rn, LE, H, G.
all in W m-2
3. Soil Ridge values: G8r, Tsoil1r, Tsoil3r, Tsoil5r, Tsoil7r, and Gr.
in W m-2 and degreeC
4. Soil Furrow values: G8Nf, Tsoil1Nf, Tsoil3Nf, Tsoil5Nf, Tsoil7Nf, and GNf.
in W m-2 and degreeC
5. Biophysical parameters: PAR, FCO2E, LE, LE/FCO2E, and Tsurf.
in umoles m-2 s-1, W m-2, and degreeC
6. Fluxes: O3V, FO3V, FO3V/O3V.
in ppbv, ppbv m-2, and m s-1
7. Profiles, temperature: Ta.5, Ta1.5, Ta3, Ta5, Ta7.5, and Ta10.
in degreeC
8. Profiles, water vapor pressure: ea.5, ea1.5, ea3, ea5, ea7.5, and ea10.
in kPa
9. Profiles, wind speed: Ua.5, Ua1.5, Ua3, Ua5, Ua7.5, and Ua10.
in m s-1
C. FOR DURATION OF PROJECT.
All on one page.
Index the date and time on the X axis with local time and date
along the bottom axis and JD and gmt along the top.
Use multiple scaling for the different parameters.
1. On a single panel a time plot of:
albedo from SWO/SWI for local time noon +_ 1hour.
gravimetric soil moisture.
crop height.
leaf area index.
2. An XY plot of stress and stability, ustar and zoL.
3. Three plots of hour and JD for each ADAM.
- 170: FAST , Site none, Wed 05-Aug-1992 22:46:23 GMT, Fast temperature calibrations during SJ
FAST TEMPERATURE CALIBS
The SJVAQS91 record was searched for the fast temp calibrations.
The cross reference directories were:
the logbook
/SJVAQS91/cals
The following were found in /cal . The appropriate logbook entry is
added if available
File name Logbook entry Time and date of calibration
tfast_10m.205 82 before 17:36:30 24 JUL 91
tfast_10m.dat
tfast_10ma5m.208 113 before 00:24:36 28 JUL 91
tfast_10ma5m.216 149 19:00 - 19:25 04 AUG 91
tfast_5m.dat
tfast_5mflux.211 121 ~ 18:00 30 JUL 91
tfast_eddy5m.208
tfast_flux5m.208
tfasted_5m.dat
The following are only refered to in the logbook and are not in /cal
File name Logbook entry Time and date of calibration
tfast_flux5m.216 149 19:25 - 20:15 04 AUG 91
tfast_eddy5m.280 108 18:00 - 19:00 27 JUL 91
tfast_flux5m.280 108 18:00 - 19:00 27 JUL
These files were cp to yield their equivalents
tfast_10m.205.ed
which had been processed to remove superfluous :250
vi tfast_10m.205.ed
:1,$s/:250//
They were then examined with Splus
cd $ASTER
Splus
fastt <- scan("tfast_10mm.250.ed")
X11()
plot(seq(along=fastt),fastt,ylim=c(30,45))
Non essential data points including operate - calibrate transients were removed.
vi tfast_10m.205.ed
The calibration offset function was then performed on the cleaned files to
yield the offsets, average, and standard deviation.
fastt <- scan("tfast_10mm.250.ed")
fun.fastT.cal(fastt,10)
The results of the operation is given:
File name Logbook entry Time and date of calibration
tfast_10m.205 82 before 17:36:30 24 JUL 91
Results:
offsets -5.020000
5.012727
-5.026364
5.014545
average 5.018409
st dev 0.006137766
tfast_10m.dat
Results:
offsets -5.019091
5.01181
-5.021818
5.012727
average 5.016364
st dev 0.004867387
tfast_10ma5m.208 113 before 00:24:36 28 JUL 91
Results:
offsets -5.050909
5.036364
-5.041818
5.033636
-5.042727
average 5.041091
st dev 0.006661844
tfast_10ma5m.216 149 19:00 - 19:25 04 AUG 91
Results:
offsets -4.967273
4.969091
-4.975455
4.969091
-4.972727
4.970909
average 4.970758
st dev 0.002955128
tfast_5m.dat
Results:
offsets -4.992727
4.991818
-4.993636
4.990909
-4.999091
4.993636
average 4.993636
st dev 0.003214122
tfast_5mflux.211 121 ~ 18:00 30 JUL 91
Results:
offsets -5.045455
5.042727
-5.042727
5.048182
-5.042727
5.042727
average 5.044091
st dev 0.0022818
tfast_eddy5m.208
Results:
offsets -4.975455
4.971818
-4.979091
4.971818
-4.984545
average 4.976545
st dev 0.005393599
tfast_flux5m.208
Results:
offsets -5.038182
5.044545
-5.035455
5.039091
-5.033636
5.043636
-5.037273
5.040909
average 5.039091
st dev 0.003795321
tfasted_5m.dat
Results:
offsets 4.993636
-5.000909
5.000000
-4.998182
average 4.998182
st dev 0.003235478
- 171: FAST , Site none, Thu 06-Aug-1992 17:02:44 GMT, FAST TEMPERATURE CALIBRATION HISTORY
FAST TEMPERATURE CALIBRATION HISTORY
The SJVAQS91 record was searched for the fast temp calibrations.
The cross reference directories were:
the logbook
/SJVAQS91/cals
The following files were found in /cal . The appropriate logbook entry is
added if available and if not then imagination was used.
File name Logbook Time and date of calibration
tfast_10m.dat None probably at startup of ops
tfast_5m.dat None probably at startup of ops
tfasted_5m.dat None probably at startup of ops
tfast_10m.205 82 before 17:36:30 24 JUL 91
tfast_eddy5m.208 108 18:00 - 19:00 27 JUL 91
tfast_flux5m.208 108 18:00 - 19:00 27 JUL 91
tfast_10ma5m.208 113 before 00:24:36 28 JUL 91
tfast_5mflux.211 121 ~ 18:00 30 JUL 91
tfast_10ma5m.216 149 19:00 - 19:25 04 AUG 91
The following are only refered to in the logbook and are not in /cal
File name Logbook Time and date of calibration
tfast_flux5m.216 149 19:25 - 20:15 04 AUG 91
The calibration offset function was then performed on the cleaned files to
yield the offsets, average, and standard deviation.
The results of the operation is given:
File name Location Time and date Average Gain
of sensor of calibration offset factor
tfast_10m.dat Flux twr 10m probably at startup of ops 5.016364 0.9967
tfast_5m.dat Flux twr 5m probably at startup of ops 4.993636 1.0013
tfasted_5m.dat Eddy twr 5m probably at startup of ops 4.998182 1.0004
tfast_10m.205 Flux twr 10m before 17:36:30 24 JUL 91 5.018409 0.9963
tfast_eddy5m.208 Eddy twr 5m 18:00 - 19:00 27 JUL 91 4.976545 1.0047
tfast_flux5m.208 Flux twr 5m 18:00 - 19:00 27 JUL 91 5.039091 0.9922
tfast_10ma5m.208 Flux twr 10m before 00:24:36 28 JUL 91 5.041091 0.9919
moved to 5m
tfast_5mflux.211 Flux twr 5m ~18:00 30 JUL 91 5.044091 0.9903
tfast_10ma5m.216 Flux twr 10m 19:00 - 19:25 04 AUG 91 4.970758 1.0059
moved to 5m
Note that the gain factors are all extremely small and hence can be ignored.