Field Notes

East End: 2014-03-07 09:20:00 (DOY 66)
Author: Cove Sturtevant
Others: Sara, Joe

Summary: Updated 7700 firmware and calibrated. Moved solar panels and batteries to separate scaffold in channel. Leveled sonic. Removed soil moisture probes.

East End Wetland
2014-03-07

We arrived about 09:20 PST. It was partly cloudy, coldish, and windy. The site is well flooded, although the check to the south of the tower has a large amount of open ground. Bryan mentioned that there is a lot of under-seepage between the checks, causing areas of higher overall elevation to remain above water.

Sara and I checked the tower readings, updated the 7700 firmware and calibrated the 7700 (sn TG1-0155) while Joe set up a separate scaffold in the nearby channel for the solar panels and batteries. We also leveled the sonic by adjusting the legs on the tower scaffold. Sara and I left Joe at the site to finish the scaffold while we visited Alfalfa and Rice.

7500 readings:
CO2 = 16.6 mmol m-3
H2O = 485 mmol m-3
Diag: 247
sos: 341.0 m s-1

7700 readings:
CH4: 1.98 ppm
RSSI: 51% (85% after cleaning)
Reservoir was Â¾ empty. Refilled.

MET looked good. Removed soil moisture probes.

2 photos found

20140307EE_7700Cal.jpg ( 2014-03-07 11:02:54 ) Full size: 1920x1440
Sara and Cove on site calibrating the 7700

20140307EE_NewSolarPanelMount.jpg ( 2014-03-07 13:36:59 ) Full size: 1920x1440
Separate scaffolding set up in the channel for the solar panels and batteries