July 7, 21:20 CDT
Dan Rajewski (in Ames)
Summary: Stations 1-4 operational, no ISFS staff on site
Krypton hygrometer at stn 4 still giving anomalous readings (mean and variances)
vh2ov at stn4 is very low, so the sensor lens needs cleaning?
rain shower from 8:15 to 8:45 CDT
late morning clearing and generally sunny and stronger wind;
winds veering from ENE in overnight to WSW by early afternoon, NW to NE rest of the afternoon and evening
Vdsm: 13.5-13.8 V during day, down to 12.5 at night
P: ok
T.2m: ok, stn2 about 0.5-0.75 degree cooler than stn 1,3-4 from 1:30 to 3:00 (stn2 waked by far east turbine(s) in S22?)
RH.2m: 85-95% nighttime; 60-65% day
from 1:00 to 7:00 stn 2 3-5%RH higher than stn 1,2-4, stn 1-3 close together
stn 1 5%RH lower than other sites in mid morning (9:30 to 11:00)
stn 4 about 5% RH higher than other sites in early evening
H2O.2m: ok
Wetness: sensor response to mid morning rain showers
sensor dry by 12:00 CDT
T.10m: ok, see comments for T.2m
RH.10m: ok, stn 2 about 5%RH higher than other sites from 1:00 to 2:00
stn 4 has few%RH lower than stns2-3 from 17:30 to 19:00
H2O.10m: ok see comments with RH.10m
Spd.10m: ok, stn 2 less wind (0.75 m/s) than other sites from 1:00-2:00, good daytime agreement at all sites
Dir.10m: ok, ENE to WSW winds in night-early afternoon, back to northerlies in late afternoon/evening
T.10m - T.2m: ok, similar at all sites in most of daytime
0.5 degrees warmer at stn2 than stn 1,3-4 from 2:00 to 3:00
H2O.10m - H2O.2m: ok, stn4 2% lower vapor concentration (drier at 10m vs. 2m) than other sites for much of afternoon 2:00-6:00 CDT
spd.4.5m: ok, see comments for Spd.10m
dir.4.5m: ok
w.4.5m: ok,
tc.4.5m: ok, for nighttime stn 2 about 0.6 degree cooler than stns 2-4 from 0:00-2:00
ldiag: ok
vh2ov: not ok, at stn 2 above 100 mV before and after rain;
stn 4 voltage is at or less than 15 mV, likely needs to be cleaned
kh2o: not ok, stn 4 greater than stn 2 by 10 g/m^3
h2o(licor): ok, btwn 15-19 g/m^3 for night to day behavior
lidiag (licor): ok, some warnings during the morning shower
TKE.4.5m: ok, stn 2 about 50% less than stns1,3-4 1:00-3:00 CDT (wake from several turbines in oblique wind direction ESE?)
w'w': ok, see comments for TKE.4.5m, stns 2-4 less than stn 1 by 0.06 (m/s)^2 in same 1:00-3:00 period
u* : ok, similar behavior as in TKE4.5m, w'w', also in fluxes of u'w' and v'w'
w'T' : ok, stn2 slightly less cooling than other sites for 1:00-2:30;
stn4 slight cooling vs. neutral cooling at other sites at the moment of the cloud breakup (10:30-11:30 CDT);
stn4 less positive heat flux in late afternoon than other sites
w'h2o': not ok, lots of fluctuation at stn4 in night time (krypton problem), better agreement in afternoon
h2o'h2o': ok,
kh2o'kh2o': not ok; night and daytime separation from stn 4 > stn 2 by factor of 3-4
w'co2': ok, stn 1 & 3 are in close agreement most of the diurnal period
co2'co2': ok
July 6, [July 7 19:44 CDT]
Dan Rajewski (in Ames)
Summary: Stations 1-4 operational
ISU staff (Kris and Dan) serviced Station #4 around 11:45 CDT to update new tilt correction angle
An updated tilt correction was performed after having moving the sonic cross beam to replace the krypton hygrometer on July 5
Likely morning fog event, nearby towns had visibility ~0.5 mile
Daytime continuation of light winds from N to NE, warm, muggy conditions
Vdsm: 13.5-13.8 V during day, down to 12.3 at night
P: ok
T.2m: ok, stns 1-3 give erroneous data from 3:00-10:00 because of the morning moisture;
before dew/fog set in site 1 > site 2 (1.5 degrees) stns 3-4 also reading about 1.0 degree cooler than stn 1
RH.2m: 90-100% nighttime; 65% day
stns 1 5-7%RH lower than stn 4, stn 2-3 close together
erroneous data from 3:00-10:00 as in T.2m
H2O.2m: similar pattern as RH.2m,
erroneous data as in T.2m
Wetness: slight wetness the evening of July 5 (19:00 CDT) dew formation occurring from 22:30 July 5 to 7:00 July 6
sensor dry by 9:00 CDT
T.10m: ok, erroneous data occurring as in T.2m;
stn1 about 0.5 degree warmer than other sites from 1:30 to 2:30 CDT;
site 4 about 0.5 degree warmer than stns 1-3 for 'burn-off' of dew (8:15-9:00)
RH.10m: ok, similar occurrences of bad data as in T.2M
stn 4 has few%RH lower than stns2-3 from 17:30 to 19:00
H2O.10m: ok see comments with RH.10m
Spd.10m: ok, late night jet possibly enhancing wind speeds at all sites from 23:00 July 5 to 3:00 July 6;
very little wind at all sites from 4:00-5:00 before increasing again (another cascade of LLJ energy?, what were the turbines doing?)
Dir.10m: ok, NW to N winds in night/morning; N to NE winds much of daytime
T.10m - T.2m: ok, similar at all sites in most of daytime
0.3 to 0.5 degrees warmer at stn2 than stn 1,3-4 from 0:00 to 1:00 July 6
H2O.10m - H2O.2m: ok, similar at all stns;
spd.4.5m: ok, from 0:00 to 2:00 stn 1 wspd about 0.8 m/s higher than stns 2-4; why is this not in Spd.10m?
another mid morning period (8:00-9:00) stn 1 about 0.5 m/s greater other sites
dir.4.5m: ok
w.4.5m: ok, few brief nighttime periods when stn 1 few cm/s w<0 than at other sites
tc.4.5m: ok, for nighttime stn 1 about 0.5 degree warmer than stns 2-4 from 0:00-2:00
ldiag: ok
vh2ov: not ok, above 100 mV at stn 2 for most of period;
site 4 below 100 mV much of night and morning; does the sensor lens need cleaning?
kh2o: not ok, stn 4 greater than stn 2 by 10 g/m^3 (is this more severe because of the high humidity environment?)
h2o(licor): ok, btwn 15-17 g/m^3 for night to day behavior
lidiag (licor): ok
TKE.4.5m: ok, stn 1 about 2X stn 2-4 from 0:00-2:00 CDT
w'w': ok, see comments for TKE.4.5m, stns 2-4 less than stn 1 by 0.03 (m/s)^2 in same 0:00-2:00 period
u* : ok, similar behavior as in spd_4.5m, stn 1 slightly higher than stns2-4 from 0:00-2:00
w'T' : ok, stn1 larger sfc cooling whereas other stations ~ 0 during 0:00-2:00
w'h2o': ok,
h2o'h2o': ok,
kh2o'kh2o': not ok; late morning separation from stn 4 > stn 2 by factor of 2
w'co2': ok, stn 1 & 3 are in close agreement most of daytime;
from 0:00-2:00 flux at stn 1is about .0005 g/(m^2 s) greater than at stn 3
co2'co2': ok
July 5, 21:54 CDT
Dan Rajewski (in Ames)
Summary: Stations 1-4 operational, ISU staff (Kris and Dan) serviced Station #4 to repair the
krypton hygrometer. Steve Oncley determined that the spare krypton was sufficient to remove the noise signature from the 20 Hz data
continuation of light winds from ESE to SW;
scattered cloudiness from remnant thunderstorm complexes (morning and evening of July 5);
light rain from 18:30-20:00
Vdsm: 13.5-13.8 V during day, down to 12.4 at night
P: ok
T.2m: ok, stn 1 about 1 degree cooler at night than sites 2-4;
all stns in agreement afternoon/evening
RH.2m: 85-90% nighttime; 75% day, stns 1-3 few %RH lower than stn 4
H2O.2m: night: stn 1 is ~1.0 g/m^3 less than stns 2-4
day stns 1-2 are ~0.5 g/m^3 less than stn 3
Wetness: rainfall in evening, sensor dry by 20:30 CDT
T.10m: ok, stns 2-4 about 1 degree warmer than stn 1
RH.10m: ok, 85% night; 75% day
H2O.10m: ok
Spd.10m: ok, slightly less speed at stn 1 than at sites 2-4 in a few night and day periods
Dir.10m: ok
T.10m - T.2m: ok, similar at all sites
3-4 degrees warmer at 10 m from 21:00 July 4 to 3:00 July 5
H2O.10m - H2O.2m: ok, similar at all stns;
spd.4.5m: ok, see comments for Spd.10m
dir.4.5m: ok
w.4.5m: ok, stn 2 slight w>0 in overnight with stn 1 w~0 and stns 3-4 w<0 (see comments for TKE)
spurious reading at stn 4 during the mast lowering and replacement of the krypton hygrometer
tc.4.5m: ok, for nighttime stn 1 about 0.5 to 1.0 degrees cooler than stns 2-4
ldiag: ok, a few flags recorded at site 4 during the krypton replacement around 15:00-16:00
vh2ov: ok, above 100 mV at stn 2 for most of period;
site 4 below 100 mV much of night and morning; above 80 mV after sensor replacement
kh2o: ok, stn 4 greater than stn 2 (0.5 g/m^3) until sensor replacement, then stn 4 < stn 2 h2o concentration
h2o(licor): ok, btwn 15-17 g/m^3 for night to day behavior
lidiag (licor): ok
TKE.4.5m: ok, stn 1 < stns 2-4 possible influence of wake during 1:00-5:00 CDT
w'w': ok, see comments for TKE.4.5m, and w.4.5m
w'h2o': ok, daytime vapor flux (0.07 g/m^2/s),
h2o'h2o': ok
kh2o'kh2o': ok; after replacing the krypton at Stn 4
w'co2': ok, stn 1 & 3 are in close agreement most of daytime;
slight separation in overnight (1:00-5:30 CDT)
co2'co2': ok, large variance and change of concentration in nighttime (moderate to strong sfc stability?)
July 3-4, 15:25 CDT
Dan Rajewski (in Ames)
Summary: Stations 1-4 operational, no ISFS staff on site
krypton hygrometer and possibly sonic at stn4 need replacement; harmonic noise still evident during night
light winds from the NE to SE; under the influence of a sfc high pressure
Vdsm: 13.5-13.8 V during day, down to 12.4 at night
P: ok, separation of pressure in certain night periods (possible effect of multiple wakes reaching stns 3 & 4?)
T.2m: ok, all stns in agreement
RH.2m: 85-90% nighttime stns 1-3 few %RH less than stn 2-4
75[60]% day on July 3 [4]; stns 1-3 lower than stn 4
H2O.2m: night: stns 1-2 are ~1.0 g/m^3 less than stns 3-4
day (July 3): stns 1-3 are ~0.5 g/m^3 less than stn 4
(July 4): stns 1-2 are 1.0-1.5 g/m^3 less than stns 3 & 4
Wetness: light showers occurred from 15:00-16:00 July 3, possible dew event from 1:00-6:00, sensor dry by 8:00 CDT
T.10m: ok,
RH.10m: ok, 80-90% stn 4 nighttime RH few% less than stns 1-3;
afternoon RH ~70% on July 3; ~50% for July 4
H2O.10m: ok,
Spd.10m: ok, all stns have similar magnitudes of speed
Dir.10m: ok
T.10m - T.2m: ok, similar at all sites
3-4 degrees warmer at 10 m from 1:00-7:00 July 3, 23:00 July 3 to 3:00 July 4
H2O.10m - H2O.2m: ok, similar at all stns;
nighttime only ~1 g/m^3 less at 10 m than at 2m
with comments from T.10m - T.2m was a fog event occurring? (check ISU flux tower data in a few days)
spd.4.5m: ok, see comments for Spd.10m
dir.4.5m: ok,
w.4.5m: ok, all stns have w<0 when wind is nearly easterly, site 2 w>0 (afternoon of July 3 [4], ESE [SE] wind)
stns 3-4 w<0 for aforementioned periods
tc.4.5m: ok,
ldiag: ok, a few flags recorded around 15:00-16:00 (light showers occurring July 3)
vh2ov: ok, above 100 mV at stn 2, below 100 mV night July 2-early morning July 4
kh2o: ok, nighttime stn 4 greater than stn 2 (0.5 g/m^3, July 3), (~1g/m^3, July 4)
h2o(licor): ok, btwn 13-18 g/m^3 for night to day behavior
lidiag (licor): ok
TKE.4.5m: ok, possible influence of intersecting wakes, but unclear differences btwn stns
w'w': ok
w'h2o': ok, low vapor flux on July 3 (~0.05 g/m^2/s), near 0.20 g/m^2/s on July 4
h2o'h2o': ok
kh2o'kh2o': not ok; anomalous variance continuing daytime and nighttime of July 3, daytime of July 4
w'co2': ok, stn 1 & 3 are in close agreement most of night and in daytime
co2'co2': ok, large variance and change of concentration in nighttime (moderate to strong sfc stability?)
Based on the tests just performed at ncar4, it appears that there is a loose connection on the cables from the krypton head on S/N 1390. I would suggest rebuilding these connectors (the SMC and the MS) prior to a future deployment.
Dan and Kris onsite; ground fairly hard, some cracks
Purpose: Fix source of noise in krypton data (may require replacing sonic with serializer)
1506, called me (Steve O.) in Boulder; still see noise; lower mast
~1530 reseated all connectors; noise went down by a factor of 4.
~1540 connecting spare (1389) handheld; noise gone
~1545 cleaned krypton with water; signal increased from 0.02V to 0.10V, still no noise
~1550-1623 swapped kryptons (removed 1390) and electronics; decided it was best to remove sonic boom to get access to krypton head
(thus need to restart tilt correction at this time, which we probably would have done because the mast was down)
~1630-1645 raise mast; krypton still checks out okay, and WWW plots show variance that match the other stations
1657: Have just updated ../cal_files/no_QC/krypton_ncar4.dat to use new sensor calibration.
July 2, 13:38 CDT
Dan Rajewski (in Ames)
Summary: Stations 1-4 operational, no ISFS staff on site
CORRECTION: krypton hygrometer and possibly sonic at stn4 need replacement due to electrical harmonic 'noise'
thunderstorm event around 0:15 CDT, followed by cold front passage
light winds from the NW to NE early morning through afternoon
Vdsm: 13.5-13.8 V during day, down to 12.4 at night
P: ok, pressure in close agreement among all sites
T.2m: ok, all stns in agreement
RH.2m: 60-65% during thunder storm passage; 90-95% before sunrise; stns 1-3 few %RH less than stn 4
50-60 % during day; stns 1-3 lower than stn 4
H2O.2m: night: stns 1-2 are ~1 g/m^3 less than stns 3-4
day: stns 1-3 are ~1 g/m^3 less than stn 4
Wetness: wetness detected around 0:15, sensor dry by 7:45 CDT
T.10m: ok,
RH.10m: ok, 85-93% stn 4 nightime RH few% less than stns 1-3;
afternoon RH ~55% at all sites
H2O.10m: ok, before front passage stn 3 slightly higher than 1-2,4
daytime stn 4 1 g/m^3 less than stns 1-3
Spd.10m: ok, all stns have similar magnitudes of speed
Dir.10m: ok, stn 2 sensing more fluctuations around the 360 degree mark than for sites 1,3-4
T.10m - T.2m: ok, diurnal cycle as expected, very similar at all sites
H2O.10m - H2O.2m: all sites about -2 g/m^3 (more moist near sfc) for daytime
spd.4.5m: ok, see comments for Spd.10m
dir.4.5m: ok,
w.4.5m: ok, after front passage with westerly wind all stns have w~ 0;
before sunrise sites 1-2 w<0 and sites 3-4 slightly w>0
pattern continues as winds veer from NW to NE in the afternoon
tc.4.5m: ok, stn 4 slightly warmer (0.5 degree) than stn 1
ldiag: ok
vh2ov: 50 mV before storm, above 100 mV for remainder of overnight-afternoon
kh2o: ok, front passage dropped the moisture from 21 to 14 g/m^3
h2o(licor): ok, in daytime stn1 > stn 3 (0.5 g/m^3)
lidiag (licor): ok
TKE.4.5m: ok, slight periods of stn1 higher than other sites (4:30-6:00, 9:30-10:30) other blips in early afternoon
w'w': ok, see comment for TKE (stn1 is experiencing turbine wakes for northerly flow?)
w'h2o': ok, spike in data during thunderstorm storm passage; all stns in close agreement for northerly flow
h2o'h2o': ok, spike in data during thunderstorm passage
kh2o'kh2o': not ok; anomalous variance continuing in overnight at stn 4; though less 'noisy' than previous day (watch for future cases of strong wind to cause greater erroneous readings?)
w'co2': ok, stn 1 & 3 are in close agreement most of night and in daytime
co2'co2': ok, large variance and change of concentration during storm & frontal passage
July 1, 19:38 CDT
Dan Rajewski (in Ames)
Summary: Stations 1-4 operational, no ISFS staff on site
Krypton hygrometer at stn 4 needing lens cleaning
winds backing to SE or ESE during the overnight
strong southerly winds, warm and very moist daytime
Vdsm: 13.5-13.9 V during day, down to 12.4 at night
P: ok, relative pressures between 1-2 and 3-4 about 0.25 mb during the night, closer
agreement in the daytime
T.2m: ok, stn 1 and 2 slightly cooler than 3-4 around 6:00-6:30 CDT
stn 3 and 4 slightly cooler (0.5 C) than 1-2 in daytime 16:00 CDT
stn 4 cools (t2m < t10m) 1 hr earlier in the evening than at stn 1-3
RH.2m: 80-100% at night; stns 1 & 2 few %RH less than stn 3; stn 3 few %RH less than stn 4
55-65 % during day stns 1-3 lower than stn 4
H2O.2m: day: stns 1-2 are ~1 g/m^3 less than stn 3, stn 3 ~1 g/^3 less than stn4
stn 1 within 0.5 g/m^3 at night of stns 2,3, stn 4 is 0.5 g/m^3 more than stn 2-3
Wetness: none
T.10m: ok,
RH.10m: ok, 80-90% at night
H2O.10m: ok, 1 & 4 drier than 2 & 3
Spd.10m: ok, stn 1 lower than 2-4 most of night; stn 1 lower than 2-4 in day, stn 4 highest speeds
Dir.10m: ok, 1 & 3 and 2 & 4 agree best last night, no easterly flow indicated at stn 2-4 at 6:00
T.10m - T.2m: ok, diurnal cycle as expected, very similar at all sites; slight cooling at stn4 as mentioned above for T.2m
H2O.10m - H2O.2m: stn 1 > 0 last night, stn 4 < 0 ~1 g/m^3
spd.4.5m: ok, see comments for spd.10m
dir.4.5m: ok,
w.4.5m: ok, stn 2 slightly w>0 night, more in the day; stns 3 & 4 have more w<0 at night, and more w<0 for daytime
tc.4.5m: ok, all sites agree within +/- 0.5 degC
ldiag: ok
vh2ov: below 100 mV, but h2o up 23 gm/m^3
kh2o: stn 4 needs the sensor cleaned
h2o(licor): ok
lidiag (licor): ok
TKE.4.5m: ok, lower at stn 1 than 2:4 last night
w'w': ok, see comment for TKE (also u'u' and v'v')
w'h2o': ok, sometimes highest at site 4 during daytime (previous day stn3 had highest vapor flux >0)
h2o'h2o': ok
kh2o'kh2o': not ok; huge variance at stn 4 continuing beyond June 30 (sensor needs cleaning)
w'co2': ok, daytime flux greater (more negative) at 3 than 1
co2'co2': ok, see comment for w'co2'
June 30, 12:45 CDT
Tom Horst (in Boulder)
Summary: Stations 1-4 operational, no ISFS staff on site
Stn 2 RH.2m no apparent change with new sensor;
sites 1 and 2 drier at 2m than sites 3 and 4.
some differences in mean winds and turbulence among sites.
large noise on kh2o at stn 4 after 00:00 GMT today
Vdsm: 13.5-14 V during day, down to 12.5 at night
P: ok, relative pressures suggest site rises from south to north(?)
T.2m: ok, stn 1 at times colder at night than 2-4; stns 3&4 colder during
the day yesterday; otherwise stations agree closely with each other
RH.2m: 80-100% at night; stns 1 & 2 often a few %RH less than stns 3 and 4
H2O.2m: stns 1 and 2 are ~1 gm/m^3 less than stations 3 and 4 during the
day but within 0.5 gm/m^3 at night (stns 2,3,4)
Wetness: peak at 06:00 coincides with RH close to 100%
T.10m: ok, see comments for T.2m
RH.10m: ok, 90-95% at night
H2O.10m: ok, 1 & 4 drier than 2 & 3
Spd.10m: ok, at time last night stn 1 lower than 2-4
Dir.10m: ok, 1 & 3 and 2 & 4 agree best last night
T.10m - T.2m: ok, diurnal cycle as expected, very similar at all sites
H2O.10m - H2O.2m: 1 & 2 > 0 last night
spd.4.5m: ok, see comments for Spd.10m
dir.4.5m: ok
w.4.5m: ok
tc.4.5m: ok, all sites agree within +/- 0.5 degC
ldiag: ok
kh2oV: below 100 mV, but h2o up 23 gm/m^3
kh2o: ok
h2o(licor): ok
lidiag (licor): ok
TKE.4.5m: ok, lower at stn 1 than 2:4 last night
w'w': ok, see comment for TKE (also u'u' and v'v')
u*: ok, see comment for TKE
w'tc': ok, diurnal cycle as expected,
noticeably higher at sites 1 and 2 during daytime
tc'tc': ok, significantly higher at sites 1 and 2 during daytime
w'h2o': ok, sometimes highest at site 4 during daytime
h2o'h2o': ok
kh2o'kh2o': not ok; huge variance at stn 4 beginning around 00:00 GMT today
w'co2': ok, daytime flux greater (more negative) at 3 than 1
co2'co2': ok, see comment for w'co2'
This done at about 16:03MDT to try to solve the high krypton variance problem at this site.
From what I could tell, there was no affect. (voltage still small, but the same before and after the power cycle).
Note that I panicked that the sonic didn't immediately come back up, so I also did an "adn"/"aup" cycle on the data system.
The krypton voltage at 4 is low, less than 0.1. It is also quite humid: H2O > 20 g/m^3
kh2o goes as -log(V), so the variance goes up as the voltage reaches the noise floor.
The covariance with w (w'kh2o') still looks generally good.
http://www.eol.ucar.edu/isf/projects/CWEX11/isfs/qcdata/plots/20110630/krypton4_20110630.png
http://www.eol.ucar.edu/isf/projects/CWEX11/isfs/qcdata/plots/20110630/h2o_20110630.png
It's probably wise to also clean the krypton at 2.
June 29 16:49(?)
Kurt swapped 2m trh at station 2. I can't see any difference in data.
GM: TRH27 was removed, TRH22 installed. I'll check the exact time once today's data files are copied to Boulder.
June 29, 15:15 CDT
Tom Horst (in Boulder)
Summary: Stations 2-4 operational, KK on site
Stn 1 operational ~14:00 today
Stn 2 RH.2m questionable; replacement due today
Perhaps see effect of turbine wake in w'tc' and tc'tc'(???)
Vdsm: 13.5-14 V during day, down to 12.5 at night
P: ok, relative pressures suggest site rises from south to north(?)
T.2m: ok, stns are less homogeneous at night, which is not surprising
RH.2m: 80-90% at night; stns 1 & 2 often a few %RH less than stns 3 and 4
H2O.2m: stns 1 and 2 are ~1 gm/m^3 less than stations 3 and 4 @ 16:00,
but within 0.5 gm/m^3 at night (stns 2,3,4)
Wetness: dry...
T.10m: ok, stns are less homogeneous at night, which is not surprising
Gordon's hack seems to be working
RH.10m: ok, 80-90% at night
H2O.10m: ok, within < 0.3 gm/m^3 at night
Spd.10m: ok
Dir.10m: ok, winds from the south!!
T.10m - T.2m: ok, diurnal cycle as expected
H2O.10m - H2O.2m: ok, no significant values > 0
spd.4.5m: ok
dir.4.5m: ok
w.4.5m: ok
tc.4.5m: ok, all sites agree within +/- 0.5 degC
ldiag: ok
kh2o: ok
h2o(licor): ok
lidiag (licor): ok
TKE.4.5m: ok
w'w': ok, similar at all sites
u*: ok, similar at all sites
w'tc': ok, diurnal cycle as expected, noticeably higher at sites 1 and 2
tc'tc': ok, significantly higher at sites 1 and 2
w'h2o': ok, diurnal cycle as expected
Jun 29, 13:30 CDT
Kurt is at site 1 and phoned to report that system is up. The mast was still down, he will raise it shortly.
TWH: data show mast up at 13:55
I logged in and all looks good - all sensors reporting (except a problem with 2m TRH, see below), including leaf wetness, and flash drive is being written to.
sonic: 537
licor: 1167
prop: 315, propeller: 48627
barometer: B2
2m: TRH17
10m: TRH21
Actually on further inspection the 2m TRH was reporting garbage, with rserial reporting wacky hex values in the middle of the ASCII data. I powered it down and back up with eio:
eio 5 0 eio 5 1 rs 5
After that the rserial output looked good.
I ran the function plot.tilt() for the period 6/22 16:00 to 6/29 16:00 to calculate preliminary sonic tilt angles and w offsets by the planar fit technique.
|
w-offset |
lean angle |
lean azimuth |
|---|---|---|---|
stn 1 |
|
|
|
stn 2 |
-1 |
0.7 |
132.6 |
stn 3* |
-3 |
1.2 |
46.0 |
stn 4 |
-1 |
1.5 |
54.8 |
*analysis starts 6/23 16:05 when sonic was replaced to switch fast hygrometers
Entered these values in the CWEX sonic cal_files in the flow_normal directory.