Field Notes

Twitchell Rice: 2013-09-05 12:00:00 (DOY 248)
Author: Cove Sturtevant
Others: Joe, Laurie

Summary: Field continues to dry. Rice droopy with seed. Standard fieldwork. Pulled DO probe.

Twitchell Rice
2013-09-05

We arrived about 12:00 PDT. It was sunny and warm (25 C) with a nice breeze. The soil was still moist but not mucky at all and drier than last week. The rice is droopy with seed, about 75 cm high above the soil. Joe and I attended to the tower while Laurie did spectral. Joe pulled the DO probe (#6), since the field will be drained for the remainder of the season.

7500 readings:
CO2 = 392 ppm (same after cleaning)
H2O = 615 mmol m-3 (same after cleaning)
signal strength = 86.1% (86.4% after cleaning)
t = 25.4 C
p = 102.0 kPa
sos = 348.2 m s-1

7700 readings:
CH4 = 1.9 ppm variable +-0.05 (1.9 and stable after cleaning)
RSSI = 35 variable +- 1 (73 and stable after cleaning)
Reservoir was full.
There was some spider web filaments in the path.

MET data looked good.

2 photos found

TW_autocam_20130906_1345.jpg ( 2013-09-06 13:45:03 ) Full size: 1920x1440
Black bird swarm