Field Notes

<--2014-12-23 11:18:00 | 2015-01-20 13:15:00-->
Other sites visited today: Sherman Island | West Pond | Twitchell Alfalfa | Mayberry | East End | Tonzi

Twitchell Rice: 2015-01-07 11:00:00 (DOY 7)
Author: Sara Knox
Others: Dennis

Summary: downloaded data. Updated pressure sensor coefficients.

Twitchell Rice
2015-01-07

We arrived around 11:00 PST. It was sunny, still and warm. Water level was lower than the previous field visit (the boardwalks were no longer under water). I downloaded data, updated the pressure sensor coefficients for the 7500 that was swapped last week, and made 5 spectral measurements over the water from the boardwalk. Dennis cleaned the sensors.

The camera only had a few images – looks like the power went out around Jan 1st.

Readings:
CO2 = 432 ppm (same after cleaning)
H2O = 124 mmol m-3 (same after cleaning)
signal strength = 73% (75% after cleaning)
p = 101.8 kPa
t = 11 C
CH4 = 2.8 ppm variable (2.6 ppm after cleaning)
RSSI = 50% (62% after cleaning)
Topped off reservoir.

Met looked good.

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