Field Notes

Twitchell Rice: 2013-08-14 08:30:00 (DOY 226)
Author: Cove Sturtevant
Others: Sara

Summary: Rice seeding heavily. Data download. Regular fieldwork. Pulled soil moisture sensor for repair. Took GPS reading of tower location.

Twitchell Rice
2013-08-14

We arrived about 08:30 PDT. It was sunny, cool (20 C), and windy. The water level seems to be back to normal and the rice is seeding heavily. I attended to the tower and downloaded data while Sara did spectral and clip plots.

7500 readings:
CO2 = 392 ppm (395 after cleaning)
H2O = 600 mmol m-3 (560 after cleaning)
signal strength = 80.8% (81.3% after cleaning)
t = 19.9 C
p = 101.8 kPa
sos = 345.8 m s-1

7700 readings:
CH4 = 1.9 ppm variable by +- 0.1 (more stable after cleaning)
RSSI = 30-50 variable (71 after cleaning)
There were spider web filaments in the path.
Reservoir was full.

MET data looked good except for CS615_SM1 which was still reading INF. I pulled the instrument for repair. Sara attached the DO probe to the well depth tube (it was lying free in the water).

I took a GPS reading of the tower location: N 38 06.525', W 121 39.180', -5 m

0 photos found

6 sets found

12 TW_met graphs found