Field Notes

<--2016-11-03 09:00:00 | 2016-11-16 10:00:00-->
Other sites visited today: East End | Twitchell Alfalfa | West Pond | Sherman Wetland

Twitchell Rice: 2016-11-08 09:30:00 (DOY 313)
Author: Joe Verfaillie
Others: Elke, Dennis, Kyle

Summary: Field disked, moved tower into the field and reinstalled ground sensors.

Twitchell Rice
2016-11-08

I arrived about 9:30 with Dennis, Kyle and Elke. It was warm and hazy with little to no wind. The field has been completely disked now. We met Bruce later in the day and he said that they are still finishing up the harvest but already had 26 loads of rice which is almost as much as last year and they only planted about 2/3 of the fields this year. He also said that the rice would not dry out after they drained the fields so they had to spray it with salt water to kill the rice. They will be re-flooding the fields in a week or two.

We moved the tower back in to the field. The tower was leveled and the heading and height were measured. The sonic heading is 19deg east of magnetic north (33deg east of true). The center of the sonic path is 318cm above the ground. The soil temperature rods were repaired and installed with the SHF plates and Campbell soil moisture probes. Dennis reinstalled the well and the DO sensor. The well sensor is 140cm below the top of the pipe and the DO is 70cm below the top of the pipe. The top of the pipe is 50cm above the ground surface. Two lengths of boardwalk were reinstalled.

The 7700 read: 2.14ppm CH4, 36.6RSSI – 71.3 after cleaning
The 7500 read: 408.7ppm CO2, 701.3mmol/m2 H2O, 18.9C, 102.58kPa, 89.47SS – 93.9 after cleaning
The 7700 wash reservoir was half empty – refilled.

The camera was off and I forgot to bring the memory card adapter. I restarted the camera.

3 photos found

view of field site
20161108TW_Heading.jpg ( 2016-11-08 10:27:22 ) Full size: 1440x1920
view of field site

view of field site
20161108TW_TowerReplaced.jpg ( 2016-11-08 09:54:44 ) Full size: 1920x1440
view of field site

view of field site
20161108TW_Tower.jpg ( 2016-11-08 10:50:06 ) Full size: 1920x1440
view of field site

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