Summary: Stations 1-4 operational, no ISFS staff on-site,
northerly to ENE nighttime flow, NE to E flow in daytime,
periods where krypton sensor have voltage blw 100 mV and correspondingly anomalous variances and mean
Vdsm: 13.5-13.8 V during day, down to 12.5 at night, morning clouds/showers reduced voltage until 11:00 CDT
P: ok, pressure steady until 13:00; falling 4mb from 976mb until 17:00; generally hovering around 973 mb
T.2m: ok, stn4 about 0.7-1.0 degree cooler than stns 1 & 2 most of overnight; stn 3 about 0.3-0.5 warmer than stn 4
stn 2 warmer by 0.5-0.7 degrees than other sites most of daytime
RH.2m: 90-95% nighttime; dropping to 80% by afternoon
night: stns 4 5-10% RH higher than other stn 1 and about 3-5% higher than other stns
daytime stns 4 ~5-7%RH higher than stns 1&3, and ~10% higher than stn 2
[Are moisture effects due to more mature corn with larger Potential evapo-transpiration at Stn 4?]
H2O.2m: ok, 15-17 g/m^3 before midnight night, drop to under 14 g/m^3 before sunrise, steady rise to 21 g/m^3 in late afternoon
night: stn 1 about 0.5-0.7 g/m^3 drier than stn 4, 0.2 g/m^3 drier than stns 2 & 3
day: stn 1 about 1.0 g/m^3 drier than stn 4, 0.5-0.7 g/m^3 more dry than stn 3, few g/m^3 more dry than stn2
Wetness: slight wetness around 21:00-21:30 (Jul 13), showers made sensor wet from 6:00-9:00 10:00-11:30, 14:30-15:00
T.10m: ok, stns 1 & 2 about 0.3-0.5 degree warmer than stns 2 & 4 from 10:00 (Jul 13) to 4:00
stn 1 about 0.5 degree warmer than other sites for several daytime hours
RH.10m: ok, most of night stns 1 & 2 few%RH lower than stns 3 & 4; daytime stn 1 few%RH lower than other sites
H2O.10m: ok, nighttime: most sites within a few tenths g/m^3 of each other
stn 4 sometimes 0.3-0.5 g/m^3 less than other sites for the mid morning and late afternoon
Spd.10m: ok, sites mostly with same speed for much of overnight except for a 1.0 m/s separation from stn 1 and stn 3 from 2:00-4:00 (also during a ramp-up in possible LLJ signature?)
daytime: close agreement for all sites, slightly lower wspd at Site 3 during mid-late afternoon
Dir.10m: ok, E flow before midnight, shifting to ESE in period of LLJ? , more SE in the daytime
T.10m - T.2m: ok, most sites giving same positive gradient in nighttime temperature
daytime stn2 1.0 to 1.5 degrees warmer at 2m vs. 10m than for stn 1, about 0.5 degrees more unstable than stns 3 & 4
H2O.10m - H2O.2m: ok, stn 4 slightly drier gradient (0.5-0.7 g/m^3 more moist at 2m v.s 10m) than sites 1 & 2, sometimes stn 3 much of the night
daytime stn 4 is 1.0 g/m^3 drier at 10m vs. 2m than other other sites (again earlier planted corn drawing out more water?)
spd.4.5m: ok, see comments of Spd.10m
dir.4.5m: ok, see comments of dir.10m
w.4.5m: ok, night: stn 2 less descent (-0.02 m/s) than stns 3 & 4 (-0.08-to -0.12 m/s)
daytime stns 3 & 4 more w<0 (-0.14 m/s) (-0.12 m/s) than stn 1 (-0.02 m/s) or stn 1 (-0.06 m/s)
tc.4.5m: ok, before midnight E flow stns 3&4 0.5-0.7 degree cooler than stns 1&2;
after midnight during [LLJ occurrence?] stn 1 about 0.5 degree warmer than other sites
late afternoon stn 3 & 4 slightly warmer than stns 1 &2
ldiag: ok
vh2ov: ok, stn 2 mostly above 100mV, down to near zero during rain periods, leveling to 80 mV by late afternoon
stn 4 mostly above 100 mV, similar pattern as at Site 2 but lower voltage by late afternoon (70 mV)
kh2o: ok, night: stn 4 is reading about 1.0-1.2 g/m^ more moist than stns 1 & 2, about 0.5 m^3 more moist than at stn 3
h2o(licor): ok, btwn 13-20 g/m^3 for night to day behavior
stn 1 & 3-4 give 1.0 g/m^3 higher reading than stn 2 for late afternoon
lidiag (licor): ok
TKE.4.5m: ok, stns 3 & 4 slightly lower TKE (~0.20 m^2/s^2) than Sites 1 & 2 from midnight through 4:00 (especially during LLJ ramp-up)
daytime, all sites are in agreement
w'w': ok, see comment for TKE.4.5m, also similar pattern in u'u' and v'v'
u* : ok, not as clear of nighttime separation of sites as in TKE.4.5m;
v'w' signature has greater absolute stress at stns 1 & 2 (-0.08 (m/s)^2) than at 3 & 4 (-0.02 to -0.04 (m/s)^2) during LLJ ramp up
also daytime more v'w' stress < 0 at stn 4 vs. stn 3
w'T' : ok, nighttime: most stations in agreement within -0.01 C m/s
daytime: slightly lower at stn 4 than other sites but stations mostly in agreement
w'h2o': ok, stn 3 slightly higher nighttime vapor flux than other sites
stn 2 least daytime vapor flux max~0.08 g/m^2/s, other stns 1&3 flux max at about 0.14 g/m^2/s
h2o'h2o': ok, morning: more variance (0.05 (g/m^3)^2) at stns 1 & 3 than sites 2 & 4
early-mid afternoon: stn 2 about 0.10 (g/m^3)^2 smaller flux than stn 4, ~0.20 (g/m^3)^2 less than stns 1 & 3
kh2o'kh2o': ok, some spikes during morning rain events
co2: ok,
w'co2': ok, slight period of night when flux >0 (2.5^10-4 g/m^2/s) at stn 3 vs. stn 1
daytime stn 3 a bit greater co2 uptake mostly from 16:00-18:00
co2'co2': ok, similar pattern to w'co2'