Field Notes

<--2011-07-21 13:30:00 | 2011-08-04 09:30:00-->
Other sites visited today: Sherman Island | Mayberry
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Twitchell Rice: 2011-07-28 09:00:00 (DOY 209)
Author: Joe Verfaillie
Others: Jaclyn, Dennis, Jose, Maribel

Summary: Still no screen for LGR, cut DO with cutting grass, tested three new LED sensors.

Twitchell
2011-07-28

I arrived about 9:00PDT with Dennis, Maribel, Jose and Jaclyn. It was clear, sunny and warm. The rice looks good.

I brought the little screen for the LGR, but did not have the proper VGA cable to use it.

The LGR readings from the CR1000 were:
8:28PST, 25.13C, 137.01Torr, 16.06usec, 10Hz, 1.82ppm

I adjusted the bypass valve to set the pressure at 145.20Torr.

I cut the grass around the box and the tower. I also cut the DO sensor cable. I pulled the DO sensor for repair in the lab.

We tested the three new LED sensors.

We stopped by Frank’s site and I was unable to adjust his LGR pressure, but did return the the system to 10Hz.

8 photos found

Dennis preparing to test new LED sensors from NDVI
20110728TW_DennisLEDSensor.jpg ( 2011-07-28 08:11:08 ) Full size: 2560x1920
Dennis preparing to test new LED sensors from NDVI

Dennis and undergrads testing LED sensors with spectrometer
20110728TW_LEDTesting.jpg ( 2011-07-28 08:15:56 ) Full size: 2560x1920
Dennis and undergrads testing LED sensors with spectrometer

Dennis helping undergrads test LED sensors in the rice
20110728TW_LEDTestingInRice.jpg ( 2011-07-28 08:22:31 ) Full size: 2560x1920
Dennis helping undergrads test LED sensors in the rice

Maribell helping to test the new LED sensors
20110728TW_MaribelLEDSensor.jpg ( 2011-07-28 08:11:33 ) Full size: 2560x1920
Maribell helping to test the new LED sensors

Ship on the river from levee with Mt Diablo
20110728TW_ShipDiablo.jpg ( 2011-07-28 09:15:11 ) Full size: 2560x1920
Ship on the river from levee with Mt Diablo

View of ship on the river from the levee
20110728TW_ShipDiabloZoom.jpg ( 2011-07-28 09:15:17 ) Full size: 2560x1920
View of ship on the river from the levee

View of the levee at Twitchell
20110728TW_LeveePano.jpg ( 2011-07-28 09:09:00 ) Full size: 4908x1593
View of the levee at Twitchell

UC Davis in the field
TW_plantcam_20110729_1130.jpg ( 2011-07-29 11:30:00 ) 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