Field Notes

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

Explore the graph:Soil Heat Flux in a new window

Explore the graph:Solar Radiation in a new window

Explore the graph:Air Temperature in a new window

Explore the graph:Soil Temperature Set 1 in a new window

Explore the graph:Soil Temperature Set 2 in a new window

Explore the graph:Soil Temperature Set 3 in a new window

Explore the graph:Water Temperature in a new window

Explore the graph:RH and Pressure in a new window

Explore the graph:Soil Moisture in a new window

Explore the graph:Rain and Water Level in a new window

Explore the graph:Disolved Oxygen in a new window

Explore the graph:LED NDVI Channels in a new window

5 TW_flux graphs found

Explore the graph:Sonic Anemometer Winds in a new window

Explore the graph:LI7700 CH4 and RSSI in a new window

Explore the graph:Twitchell CH4 in a new window

Explore the graph:LI7500 CO2 and H2O in a new window

Explore the graph:Twitchel Rice Flux Counts in a new window

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

Explore the graph:TW Rice Autocam in a new window

Can't check TATWBABCSB_cam