Field Notes
<--2014-07-08 15:30:00 | 2014-07-23 14:00:00-->Other sites visited today: Sherman Island | Mayberry | Twitchell Rice | East End | West Pond
Twitchell Alfalfa: 2014-07-15 15:00:00 (DOY 196)
Author: Cove Sturtevant
Others: Sara, Kathleen
Summary: Regular field work and site check. Spectrometer trouble.
| Twitchell Alfalfa 2014-07-15 We arrived about 15:00 PDT. It was hot and sunny with a nice breeze. Sara and Kathleen did a veg height transect, clip plots, and LAI 2000. There was some trouble with connecting to the spectrometer, so no measurements. 7500 readings: CO2 = 389 ppm (393 after cleaning) H2O = 805 mmol m-3 (785 after cleaning) signal strength = 93.94% (94.78% after cleaning) p = 101.2 kPa t = 30.5 C sos = 352.3 m s-1 Met ok. Rad ok. I tried to adjust the range on the LED sensor to fix #3 measurement, but no dice. Need a complete swap of this sensor. |
Veg Height (cm): Tape measure from ground to top of plant - Flowering
54, 72, 48, 40, 52, 60, 50, 58, 42, 70, 53, 54, 50, 60, 62, 58, 54, 60, 44, 60, avg = 55.1, stdev = 8.31
2 photos found
TA_autocam_20140714_0915.jpg ( 2014-07-14 09:15:02 ) Full size: 1920x1440
wasp
TA_autocam_20140715_1445.jpg ( 2014-07-15 14:45:02 ) Full size: 1920x1440
Cove on site
7 sets found
Can't check TA_met
11 TA_met graphs found
Can't check TA_rad
3 TA_rad graphs found
Can't check TA_flux
5 TA_flux graphs found
Can't check TA_soilco2
7 TA_soilco2 graphs found
No data found for TA_arable.
1 TA_cam graphs found
Can't check TATWBABCSB_cam