Field Notes

Mayberry: 2013-10-16 10:00:00 (DOY 289)
Author: Cove Sturtevant
Others: Joe, Laurie, Pascal

Summary: Serviced DO probes. Pulled conductivity, tule water CO2, and open water 2 thermocouples for repair. Took manual water level measurement.

Mayberry
2013-10-16

We arrived about 10:00 PDT. It was sunny, cool, and calm. The vegetation is visibly senescing. Joe, Laurie and Pascal went out to the tule tower to do maintenance and collect water samples while I attended to the tower and downloaded data.

Laurie serviced the all three DO probes, which looked to be settling nicely when we left. Joe pulled the conductivity sensor, sn 5688, and the tule water CO2 probe which were reading bad. He also pulled the open water 2 thermocouples which were laying flat. He reported that the open water 1 set needs to have the stick changed to fiberglass, the current stick is too bendy.

Pascal took a water level measurement where the pressure sensor is. Water level was 111 cm high (pressure sensor read 1.32). Veg height at the tule tower was about 2.7 m above the water.

The camera was off when I pulled the data card. I cleaned the solar panel and knocked down some veg shading it.

7500 readings:
CO2: 416 ppm (same after cleaning)
H2O: 400 mmol m-3 (same after cleaning)
signal strength = 95.9% (97.7% after cleaning)
t: 17.1 C
p = 101.95 kPa
sos = 341.2 m s-1

Current 7700 readings:
CH4 = 2.3 ppm (same after cleaning)
RSSI = 29% (85 after cleaning)
The reservoir was full.

MET looked good.
Cleaned solar panels.

2 photos found

MB_autocam_20131016_1815.jpg ( 2013-10-16 18:15:02 ) Full size: 1920x1440
Hawk on 7700