July 11, 16:15 CDT
Dan Rajewski (in Ames)Wiki Markup
Summary: Stations 1-4 operational, no ISFS staff on-site
thunder storm passage with very strong winds (25
thunder storm passage with very strong winds (25 m/s) 4:00-4:30
overnight wakes from ESE to SE direction (Stn 2 more under 'turbine influence')
before the storm wake from southerly direction
boundary passing in late morning switches turbine wakes to WNW to NW for the afternoon and evening
sensors functional except during/ few hrs. after rain events
krypton sensors possibly need cleaning
Vdsm:
overnight wakes from ESE to SE direction (Stn 2 more under 'turbine influence')
before the storm wake from southerly direction
boundary passing in late morning switches turbine wakes to WNW to NW for the afternoon and evening
sensors functional except during/ few hrs. after rain events
krypton sensors possibly need cleaning
Vdsm: 13.5-13.8 V during day, down to 12.5 at night
P: ok
T.2m: ok, stn4 about 0.5 degree cooler than stns 2-4 from 9:30 (Jul 10) to 0:30 (Jul 11)
stn 2 is about 11)
stn 2 is about 1.0 degree warmer than other sites in daytime
daytime
RH.2m: 95-100% nighttime; dropping to 75% by afternoon
night before rain: stn 4 few% RH higher than stn 2-3,
night after rain stn 1&3 few% RH lower than sites 2 & 4
daytime stns 3-4 ~ 5% RH higher than stn 2, stn 2 few %RH lower than stn 1
H2O.2m: ok, 22 g/m^3 night, after storm drop to 17 g/m^3; daytime rise to 23 g/m^3
stn 2 about 1.0 g/m^3 more than other sites from 22:00 Jul 10 - 0:00
after midnight stn 1& 3 agree and stn 2 & 4 agree about 0.75 g/m^3 less at sites 1, 3
after rainfall same pattern also seen stn 1,3 drier than 2,4
daytime stn 1 and 4 (sometimes) are afternoon
night before rain: stn 4 few% RH higher than stn 2-3,
night after rain stn 1&3 few% RH lower than sites 2 & 4
daytime stns 3-4 ~ 5% RH higher than stn 2, stn 2 few %RH lower than stn 1
H2O.2m: ok, 22 g/m^3 night, after storm drop to 17 g/m^3; daytime rise to 23 g/m^3
stn 2 about 1.0 g/m^3 more than other sites from 22:00 Jul 10 - 0:00
after midnight stn 1& 3 agree and stn 2 & 4 agree about 0.75 g/m^3 less at sites 1, 3
after rainfall same pattern also seen stn 1,3 drier than 2,4
daytime stn 1 and 4 (sometimes) are 0.5-0.7 g/m^3 less than other stations
Wetness: dew collected on sensor by 8:30 \[Jul 9\] until 3:30 \[Jul 10\], sensor remaining wet following storm passage stations
Wetness: dew collected on sensor by 8:30 [Jul 9] until 3:30 [Jul 10], sensor remaining wet following storm passage 3:30-4:30, continual shower until 6:30
sensor dry by 11:30
sensor dry by 11:30
T.10m: ok, stn 2 0.75 degree warmer than stn 4 before midnight, other sites in btwn stn 2 & 4
stations in most agreement after rainfall and into the afternoon 4
stations in most agreement after rainfall and into the afternoon
RH.10m: ok, stn4 a few%RH lower than stn 2, other sites in between for night period before rain
stn 1 & 4 few% RH lower than other sites for afternoon
H2O.10m: ok, nighttime (before rain): 0.5 g/m^3 less vapor at stn 4 vs. stn 2 (stns 1,3 in between the two)
after rain this difference is 0.2 g/m^3 or less
few daytime periods with 1 g/m^3 less vapor at stn 4 than stns 2-3 as in H2O.2m
...