Field Notes

Twitchell Rice: 2016-09-13 10:50:00 (DOY 257)
Author: Elke Eichelmann
Others: Kyle Hemes, Dennis Baldocchi, Isabella Reche

Summary: Field drained. Leveled PAR sensors and radiometer, normal data collection.

Arrive: 10:50. Sunny, clear, light breeze, lots of bird activity around rice field. Very weedy, only a few patches of dedicated rice. No standing water on field.

Filled methane wash water reservoir, was mostly full; collected USB GHG data; collected met data from 23X; Did not collect camera pictures.

PAR sensor is level, re-leveled the radiometer. Shortwave pyrometer hard to measure levelness but seems reasonably level. Unclogged rain gauge (was being used as a bird toilet).

LI7500 readings
CO2 391.55
H2O 550.3
T 21.9
P 101.7
ss 95.1-> 96.4 after cleaning
LI7700 readings
CH4 2.1
rssi 50 -> 72.8 after cleaning

left: 11:20.

Veg Height (cm): Tape measure from ground to top of plant - Rice
67, 72, 79, 68, 70, 68, 65, 70, avg = 111, stdev = 46.8

0 photos found

6 sets found

12 TW_met graphs found