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Field Notes

<--2010-10-31 15:00:00 | 2010-11-12 08:00:00-->
Other sites visited today: Mayberry | Sherman Island

Twitchell Rice: 2010-11-05 08:30:00 (DOY 309)
Author: Joe Verfaillie
Others: Jaclyn

Summary: power out due to popped GFI outlet - fixed, 12VDC supply didn't seem to be supplying power - removed for check and connected solar panels, moved solar base to Mayberry.

Twitchell
11/5/2010

I arrived about 8:30 with Jaclyn. It was cool with very little wind and thin high clouds. The grass was wet from heavy dew overnight. The field has been harvested and they are beginning to chop the rice straw. The ground sensors are still out of the field and the radiation boom is still swung to the north.

AC power to our system was down due to a popped GFI outlet at the generator. After unplugging all equipment in our box I was able to reset the outlet and plug in our extension cord. At our box I plugged in things one at a time until all was running again. However the AC would not kick on its compressor since it was cold.

Everything but the LGR and the computer continued to run on battery power. The 12VDC supply did not seem to be providing any power to the solar charge controller. So I hooked up the solar panels and they were supplying some power.

After restart, the LGR read:
7:55PST, 11.77C, 142.49Torr, 16.031usec, 10Hz, 5.5 to 6.2ppm

Jaclyn cleaned the radiation sensors.

We retrieved the wooden solar panel base for use at Mayberry.

Data not collected

3 photos found

view of field site
20101105TW_BlackBirds.jpg ( 2010-11-05 09:32:36 ) Full size: 3648x2736
view of field site

view of field site
20101105TW_FieldHarvest.jpg ( 2010-11-05 09:15:00 ) Full size: 3648x2736
view of field site

view of field site
20101105TW_TowerHarvest.jpg ( 2010-11-05 09:14:52 ) Full size: 3648x2736
view of field site

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
No data found for TW_cam.
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.