Field Notes

<--2014-04-03 12:00:00 | 2014-04-17 13:00:00-->
Other sites visited today: Sherman Island | Mayberry | East End | West Pond | Twitchell Alfalfa

Twitchell Rice: 2014-04-10 11:30:00 (DOY 100)
Author: Cove Sturtevant
Others: Joe, Sara

Summary: Did rain gauge test, check measurements next time. Rotated radiation boom, releveled tower.

Twitchell Rice
2014-04-10

We arrived about 11:30 PDT. Sunny and warm with a mild breeze. Nothing going on at this site except for some cattails. We downloaded data, rotated the radiation boom to point toward the west southwest, re-leveled the tower, and did a rain-gauge test. Need to check the amount of ‘rain’ recorded in the next data collection or site visit, and adjust the gauge accordingly.

7500 readings:
CO2 = 414 ppm (same after cleaning)
H2O = 568 mmol m-3 (same after cleaning)
signal strength = 80.55% (81.1% after cleaning)
sos: 345.7 m s-1
p = 102.1 kPa
t = 20 C

7700 readings:
CH4 = 2.0 ppm (same after cleaning)
RSSI = 53% (73% after cleaning)
Reservoir was full.

Met looked good. Cleaned radiation sensors.

0 photos found

Graphs display:
6 sets found

12 TW_met graphs found

Soil Heat Flux

Solar Radiation

Air Temperature

Soil Temperature Set 1

Soil Temperature Set 2

Soil Temperature Set 3

Water Temperature

RH and Pressure

Soil Moisture

Rain and Water Level

Disolved Oxygen

LED NDVI Channels

5 TW_flux graphs found

Sonic Anemometer Winds

LI7700 CH4 and RSSI

Twitchell CH4

LI7500 CO2 and H2O

Twitchel Rice Flux Counts

Can't check TWSI_mixed
Can't check SIMBTWEE_met
1 TW_cam graphs found

TW Rice Autocam

Can't check TATWBABCSB_cam