Field Notes

<--2009-10-15 12:30:00 | 2009-10-28 00:00:00-->
Other sites visited today: Tonzi | Sherman Island
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Twitchell Rice: 2009-10-22 11:30:00 (DOY 295)
Author: Joe Verfaillie
Others:

Summary: Harvest in progress, scroll pump installed, CR23x program changed.

Twitchell
10/22/2009

Arrived about 11:30 PDT. Clear, sunny, light breeze from north west. Small fields south of our field have been harvested. One harvesting pass along the edges of the field next to our tower done in previous days. In the afternoon of this day heavy harvesting activity near our tower. Harvester going back and forth, offloading to transfer truck.

Jim had turned our radiation boom to the south over the box and solar panels for harvesting activities. I turned it 180 degrees so that the PAR and net sensors are to the north over grass at the edge of the field.

Main objective was to install a scroll pump in place of the diaphragm pump. I moved the shelf up for the scroll pump to fit underneath. First try with the scroll pump I had left the cap on the output port and the pump blew the fuse in the LGR AC receptacle. I had to get a spare fuse from the Sherman site.

Next try everything seemed to work. Scroll pump started up even with air conditioner running (20Amps from generator is enough). I forgot the output fitting and tubing so the scroll pump is venting into the box. The diaphragm pump has been doing this, but a lot more air now and more heat from the scroll pump.

Doors of the box are beginning to warp and gaps in the middle top and bottom are beginning to let bugs in (spiders, wasps). I put in hooks top and bottom on both doors that hold the doors closed and need to be twisted out of the way to open the doors.

Data copied – card not swapped.

CR23X program changed at 13:30 to make rain/ppt as total instead of average.

8 photos found

Combine harvesting rice
20091022TW_Harvester.jpg ( 2009-10-22 13:22:40 ) Full size: 2048x1536
Combine harvesting rice

Harvester moving past the rice tower
20091022TW_HarvesterTower1.jpg ( 2009-10-22 13:23:44 ) Full size: 2048x1536
Harvester moving past the rice tower

Rice harvester unloading
20091022TW_HarvesterUnloading.jpg ( 2009-10-22 13:47:57 ) Full size: 2048x1536
Rice harvester unloading

Pile of rice dumped by the harvester
20091022TW_RiceDumped.jpg ( 2009-10-22 14:21:07 ) Full size: 2048x1536
Pile of rice dumped by the harvester

Inside the equipment box at Rice
20091022TW_ScrollPumpIn1.jpg ( 2009-10-22 14:04:02 ) Full size: 2048x1536
Inside the equipment box at Rice

Inside the equipment box at Rice
20091022TW_ScrollPumpIn2.jpg ( 2009-10-22 14:04:37 ) Full size: 2048x1536
Inside the equipment box at Rice

Spider webs on the eddy sensors
20091022TW_SpiderWebs.jpg ( 2009-10-22 13:59:35 ) Full size: 2048x1536
Spider webs on the eddy sensors

Harvester and truck near the rice tower
20091022TW_UnloadingTower.jpg ( 2009-10-22 13:48:38 ) Full size: 2048x1536
Harvester and truck near the rice tower

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