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Field Notes

<--2012-08-02 11:30:00 | 2012-08-16 11:30:00-->
Other sites visited today: Sherman Island | Mayberry | West Pond | DWR Corn

Twitchell Rice: 2012-08-09 12:00:00 (DOY 222)
Author: Joe Verfaillie
Others: Sara, Cove

Summary: Tried to swap 7500A head, collected 23x data, standard fieldwork.

Twitchell
2012-08-09

I arrived about noontime PDT with Sara and Cove. It was clear, sunny and really hot with just a breath of an occasional breeze. The rice still looks weedy and patchy along the edges.

I checked the systems and all seemed well. I collected the 23X data to check on last week’s program change.

I tried to swap the 7500A sn 2150 with sn 0065 which I upgraded to a 7500A and calibrated in the lab. I had no trouble with sn 0065 in the lab connected to the 7550 box there, but when I connected it to the 7550 at Twitchell it seemed to cause the 7550 box to enter a rebooting loop. With sn 0065 connected the Ethernet lights would flash and then the USB drive would activate then it seemed to shutoff and reboot doing the same thing again. No problems with sn 2150 attached though. I uploaded the config file with sn 0065’s coefficients and calibration to the 7550 but this seemed to make no difference. In the end I left sn 2150 attached and reloaded its coefficients and calibrations to the 7550.

I added bird spike to the top of the 7700’s sun cap. The RSSI was 46 before cleaning and 69 afterwards. The wash reservoir was nearly full.

3 photos found

view of field site
20120809TW_Cove.jpg ( 2012-08-09 12:11:32 ) Full size: 1920x1440
view of field site

Bird spikes added to LI-7700
TW_autocam_20120809_1345.jpg ( 2012-08-09 12:45:02 ) Full size: 1920x1440
Bird spikes added to LI-7700

Killer wasp
TW_autocam_20120810_1345.jpg ( 2012-08-10 12:45:03 ) Full size: 1920x1440
Killer wasp

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.