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Field Notes

<--2011-08-14 09:59:00 | 2011-09-02 08:30:00-->
Other sites visited today: Mayberry | Sherman Island

Twitchell Rice: 2011-08-25 13:00:00 (DOY 237)
Author: Joe Verfaillie
Others: Jaclyn

Summary: Swapped LI7500, rice is heading, cleaned solar panels.

Twitchell
2011-08-25

I arrived about 2:00PM PDT with Jaclyn. The rice is heading. The water level might be a little bit higher – I noticed a new soggy spot in a low area under the tower.

I swapped the LI7500. SN 0041 went on and SN 0035 came off.

The LGR was reading:
12:42PST, 25.13C, 124.75Torr, 13.293usec, 10Hz, 1.808ppm

I adjusted the bypass valve and the pressure was reading 144.90 when we left.

I copied data, swapped CR1000 card and copied images from the plant cam. There was dust in the plant cam window that I cleaned out.

I cleaned the solar panels.

I cleaned the pyranometer and the other radiometers looked clean. The tipping bucked was clear but had some dirt and dust in the funnel and the tipper that could be cleaned out.

We stopped by the ponds to see the chamber measurements.

3 photos found

Tower and rice at Twitchell
20110825TW_TowerRice.jpg ( 2011-08-25 13:52:02 ) Full size: 2048x1536
Tower and rice at Twitchell

Dust to the west.
TW_plantcam_20110825_1456.jpg ( 2011-08-25 14:56:00 ) Full size: 2560x1920
Dust to the west.

UC Davis in the field.
TW_plantcam_20110826_1030.jpg ( 2011-08-26 10:30:00 ) Full size: 2560x1920
UC Davis in the field.

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

 
 

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This material is based upon work supported by the National Science Foundation and US Department of Energy. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporters.