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Field Notes

<--2011-10-27 08:15:00 | 2011-11-08 09:15:00-->
Other sites visited today: Vaira | Tonzi

Twitchell Rice: 2011-11-02 07:00:00 (DOY 306)
Author: Joe Verfaillie
Others: Siyan

Summary: Field chopped, reinstalled soil sensors, AC power line cut, radiation boom over field.

Twitchell
2011-11-02

I arrived about 7:00 PST with Siyan. It was clear and cool with almost no wind. The field has been chopped near our tower but they were still chopping the check to the north. They are still harvesting other fields and it doesn?t sounds like they will re-flood the field soon. There is 5 to 10cm of soft rice straw mulch on the field now.

When they chopped the area around our tower they also chopped the power line from the generator to our box. Jim said he would try to replace the line later today. Only the Methane should be down, everything else was running on solar.

We put new sticks on the soil temperatures and reinstalled them in the field. We also reinstalled the well and the two theta probes. We reinstalled three of the four SHF plates two of which I replaced the cables on. We also reinstalled the tipping bucket that I fixed the cable on.

There was no water in the bottom of the well. The bottom of the well is 87cm below the ground surface. The top of the pipe is 32cm above the ground and the pressure sensor is 1m below the top of the pipe.

We swung the radiation boom back out over the field.

The tube fitting on the top of the T came lose. It was missing one of the farrules. I replaced it with new nut and farrules.

17 photos found

Mowing north check of Field 1
20111102TW_Chopping1.jpg ( 2011-11-02 09:20:51 ) Full size: 2048x1536
Mowing north check of Field 1

Mowing north check of Field 1
20111102TW_Chopping2.jpg ( 2011-11-02 09:23:30 ) Full size: 2048x1536
Mowing north check of Field 1

Mowing north check of Field 1
20111102TW_Chopping3.jpg ( 2011-11-02 09:23:41 ) Full size: 2048x1536
Mowing north check of Field 1

SoilT profile, well, soil moisture, soil heat flux (not visible)
20111102TW_GroundSensors.jpg ( 2011-11-02 09:21:51 ) Full size: 2048x1536
SoilT profile, well, soil moisture, soil heat flux (not visible)

View of tower and chopped field
20111102TW_SiteTower.jpg ( 2011-11-02 09:21:01 ) Full size: 2048x1536
View of tower and chopped field

View of tower and newly installed ground sensors.
20111102TW_Tower.jpg ( 2011-11-02 09:21:28 ) Full size: 2048x1536
View of tower and newly installed ground sensors.

Chopping the straw.
TW_plantcam_20111101_0830.jpg ( 2011-11-01 08:30:00 ) Full size: 2560x1920
Chopping the straw.

Chopping the straw.
TW_plantcam_20111101_0900.jpg ( 2011-11-01 09:00:00 ) Full size: 2560x1920
Chopping the straw.

Chopping the straw.
TW_plantcam_20111101_0930.jpg ( 2011-11-01 09:30:00 ) Full size: 2560x1920
Chopping the straw.

Chopping the straw.
TW_plantcam_20111101_1000.jpg ( 2011-11-01 10:00:00 ) Full size: 2560x1920
Chopping the straw.

Chopping the straw.
TW_plantcam_20111101_1030.jpg ( 2011-11-01 10:30:00 ) Full size: 2560x1920
Chopping the straw.

Chopping the straw.
TW_plantcam_20111101_1100.jpg ( 2011-11-01 11:00:00 ) Full size: 2560x1920
Chopping the straw.

Chopping the straw.
TW_plantcam_20111101_1130.jpg ( 2011-11-01 11:30:00 ) Full size: 2560x1920
Chopping the straw.

Chopping the straw.
TW_plantcam_20111101_1200.jpg ( 2011-11-01 12:00:00 ) Full size: 2560x1920
Chopping the straw.

Chopping the straw.
TW_plantcam_20111101_1230.jpg ( 2011-11-01 12:30:00 ) Full size: 2560x1920
Chopping the straw.

Chopping the straw.
TW_plantcam_20111102_0830.jpg ( 2011-11-02 08:30:00 ) Full size: 2560x1920
Chopping the straw.

Chopping the straw.
TW_plantcam_20111102_0900.jpg ( 2011-11-02 09:00:00 ) Full size: 2560x1920
Chopping the straw.

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.