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Summary: Stations 1-4 operational, Jimmy and Dan visited the sites to clean krypton sensors at stn 2 & 4 and check bug screens on the 2m TRH inlets at all the sites
**Stn 3 T.2m appears to be back in agreement with other sites as of 0:00 overnight (two moths were in the screen underneath the inlet tube and were removed around 12:05)
Cold Front passage at 11:00, strong southerly flow and likely nighttime jet replaced by more gusty westerly and north-westerly wind
(Turbines at 9:00 were completing one revolution every 3 sec, before inversion breakup completed, one revolution took about every 6 sec around 10:30)
Vdsm: 13.4-13.7 V during day, down to 12.4 at night
P: ok, pressure falling from 993-967 mb during the night and up to 11:00, steady after that
T.2m: night: stn 1 about 1.0 degrees cooler than stn 3 1-2 hrs before midnight, other sites in between 1 & 3; stn 4 about 0.5 degree C cooler than other sites from 1:00 to 8:00; good agreement after inversion breakup completed
RH.2m: stn 4 about 3-7% RH higher than other sites much of the night and morning; stn 3 about 5%RH lower than stns 1-2 from 21:00-0:00; late morning stn 4 about few%RH higher than other sites
H2O.2m: night: stn 4 about 1.0 g/m^3 higher than at other sites much of the night from 22:00-7:00; during and after inversion breakup: stn 4 about 0.5-0.7 g/m^3 more moist than other sites
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spd.4.5m: ok, similar for Spd.10m, wind around 2-3 m/s (except at stn 1) most of the night; good daytime agreement
dir.4.5m: ok, see comments for Dir.10m, more SE to SSE wind during the night than at 10m, SSW by 11:00 and WSW by 12:00, W by 13:30, also will be trending NW or WNW by early evening
w.4.5m: ok, no clear pattern stands out among sites, but variations between sites do occur and change in time
tc.4.5m: ok, night: from 22:30-23:30 stns 1-2 are about 1.0 degrees C cooler than stn 3 and about 0.7 degrees C cooler than stn 4, rest of night most stns are less than +/- 0.5 degrees C; late morning and afternoon stns 1-2 slightly lower temperature than at Sites 3-4
ldiag: ok, 300 samples missing at Site 4 during the night, less than 100 samples missing with sites 1 & 3
kh2oV: stns 2 & 4 50-70mV during the night, around 100-150mV before lenses were cleaned, peak voltage of ~250mV, back down to 150-175 mV by late afternoon
kh2o: stn 4 about 1.5 g/m^3 more moist than stn 2 and about 3.5-4.0 g/m^3 wetter than stn 1 &3 during night; closer agreement between Sites 2 & 4 after lens cleaning but readings are still 2 g/m^3 drier than at stns 1 & 3
h2o(licor): ok, stn 1 about 0.5-0.7 g/m^3 drier than stn 3 from 22:00-9:00; after inversion breakup sites 1 & 3 are within +/- 0.5 g/m^3 of each other
lidiag (licor): ok, no spikes in data
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w'tc': ok, night: stn 4 about 0.02 to 0.05 m/s C larger negative flux than stn 1, other sites in between 1 & 4; mid morning stns 1-2 slightly less positive flux than stns 3 & 4; afternoon stn 3 peak flux a bit higher (0.02 m/s C) than other sites
tc'tc': ok, night: higher variance at stns 3-4 vs. stn stns 1-2 from 21:00-0:00 after that about same variance scatter at all sites; mid morning stn 3 about 0.02 C^2 more than at stns 1 -2, stn 4 in between, close agreement after 11:30 with the frontal passage
w'h2o': ok, overnight: stn 3 about 0.004 g/m^2/s higher positive flux before midnight than at other sites, after 1:00 stns 1 & 3 are about 0.002 g/m^2/s greater than stns 2 & 4 has similar positive flux to stn 3 & 4 during 23:00-1:00 about 0.005 g/m^2/s higher than at site 1, daytime: stns 1 &3 about 0.04-0.06 g/m^2/s larger positive flux than other sites
h2o'h2o' (licor): ok, , few spikes at 1 during night, before midnights stn3 slightly higher variance than stn 1 after 2:00, pattern reverses; stn 1 & 3 in close agreement during daytime
kh2o'kh2o': stn 4 about 0.3 (g/m^3)^2 more variance than other sensors firs half of the night then down to 0.005 unit variability; spikes during tower maintenance; also spikes but closer to sunrise event when reading is stable at Sites 1 & 3, also these sites are 0.4-0.6 (g^m^3)^2 lower than other stations in late morning to afternoon
w'co2': ok, night: slightly more positive flux at stn 1 vs. stn 3, day: close agreement; maybe some greater variability at stn 3 vs. stn 1
co2'co2': ok, several spikes in overnight, stn 1 sightly higher than at stn 3 from 20:30-1:00, and from 3:00-6:00, similar agreement in morning, slightly higher variance at stn 3 after frontal passage