Field Notes

<--2016-01-12 12:44:00 | 2016-01-28 00:00:00-->
Other sites visited today: Twitchell Rice
Phenocam link: Searching...

Twitchell Alfalfa: 2016-01-21 11:15:00 (DOY 21)
Author: Elke Eichelmann
Others: Joe Verfaillie

Summary: Removed broken Soil CO2 Probe A 8cm

Arrived at approximately 11:30. It was cool and cloudy/overcast. There was sheep fencing directly around the tower and soil instruments (see pictures). Probably had sheep around there not too long ago.

Checked the CR1000 soil CO2 datalogger. The data collection was correct (not running continuously on 10 second sampling). Vaisala Soil CO2 Probe A 8cm was still not working (reading approximately 5000mV). Connected new cable and different control board to the probe: still not working. In addition to the chewed cable that was replaced last time the probe also seems to be having issues. Removed the Vaisala probe (sn L2058003) and brought it back to the lab. We had no replacement probe with us, so no probe was connected to this profile.

2 photos found

20160121TA_115003.jpg ( 2016-01-21 11:50:02 ) Full size: 1920x1080
Sheep fence around radiometers