Field Notes

<--2012-06-21 09:30:00 | 2012-07-05 09:00:00-->
Other sites visited today: Mayberry | Twitchell Rice | West Pond | DWR Corn
Phenocam link: Searching...

Sherman Island: 2012-06-29 11:30:00 (DOY 181)
Author: Joe Verfaillie
Others: Sara, Carina

Summary: Troubleshoot soil CO2 profile, collect autocam photos, standard fieldwork.

Sherman
2012-06-29

I arrived about 11:30 PDT. Sara and Carina had been there since 10am doing the standard fieldwork. It was clear, sunny and warm with a wind from the west keeping it comfortable. The pepper weed flowers are brownish yellow. The cows were in the far west of the field. From the bridge it looked like the middle ditch was full of water.

The LGR read:
12:13PDT, 25.14C, 125.54Torr, 14.932usec, 10Hz, 1.836ppm

I adjusted the bypass valve to bring the pressure back up to 146.29Torr.

I checked the soil co2 system to see if something there was causing spike we see in the data. I made a change to the program to fix a problem with the counters. I downloaded all the data and uploaded to modified program. Otherwise I didn’t see anything to would cause the spikes. The wiring in the box was not correct. Half of the Vaisala probes were still continuously powered. We powered down the system to rewire the relay and power distribution to cycle the power on all the probes. The system seemed to run correctly afterwards. I checked the data logger status table:
22372 program signature
23237 OS signature
0256 memory (kB)
18 number of E08 errors
0 number of overrun errors
9801.0 OS version
23 OS version revision
3.1227 Lithium battery voltage
99 extended memory errors
00 extended memory erase time

I don’t see any major problems in the status info.

We moved the images off the autocam.

0 photos found

7 sets found

No data found for SI_mp.
11 SI_met graphs found