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Field Notes

<--2012-11-29 10:00:00 | 2012-12-14 13:00:00-->
Other sites visited today: DWR Corn | West Pond | Sherman Island | Mayberry

Twitchell Rice: 2012-12-06 10:45:00 (DOY 341)
Author: Joe Verfaillie
Others:

Summary: Moved solar system batteries, reinstalled auto camera, fill 7700 wash reservoir.

Twitchell
2012-12-06

I arrived about 10:45. It was cool and mostly overcast with a breeze from the west. The fields are flooded and no apparent change in water level.

I stopped at the trailer to pick up some wood for Mayberry and get the third giant battery to add to the site.

At the site I took the power down to move the batteries. I moved the two batteries from on top of the box to under the new solar panels and added the third battery to them as well. The charge controller is still in the box and the power lines from the panels and to the batteries are still in the way. I need to buy a small box for the charge controller to go with the panels.

I reinstalled a new camera using lock washers and sealing the cable port with silicon.

I filled the 7700 wash reservoir. The 7700 read 2.1ppm and 9 RSSI. I cleaned the mirrors and RSSI climbed to 65. I forced a mirror wash cycle to make sure the wash system was working and all seemed fine. Last time Cove set the spray to daylight hours and I set it back to 24hours. The heater settings were: 7% power, 2C above ambient, 1600 to 0600.

The 7500 read 400ppm CO2, 550mmol/m3, 43.8 AGC.

The HMP45 fan was dead and need replacing next time.

There is a 12VDC supply in the box that could be brought in.

5 photos found

view of field site
20121206TW_GreatWhiteEgret.jpg ( 2012-12-06 11:50:56 ) Full size: 1920x1440
view of field site

view of field site
20121206TW_MovingBatteries.jpg ( 2012-12-06 12:23:31 ) Full size: 1920x1440
view of field site

sun dog
TW_autocam_20121207_1515.jpg ( 2012-12-07 15:15:02 ) Full size: 1920x1440
sun dog

Nice sunset
TW_autocam_20121207_1645.jpg ( 2012-12-07 16:45:02 ) Full size: 1920x1440
Nice sunset

Flash makes surreal sunset
TW_autocam_20121207_1715.jpg ( 2012-12-07 17:15:05 ) Full size: 1920x1440
Flash makes surreal sunset

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.