Field Notes

East End: 2017-10-26 11:40:00 (DOY 299)
Author: Daphne Szutu
Others: Joe, Sam

Summary: Regular data collection/cleaning, power short from one of the NDVI sensors, camera card lost

2017-10-26
East End

We arrived at 11:40. It was clear and sunny.

When we arrived, the 7550 power was not consistent, like it was trying to boot up and then failing. I checked the met BattV over the past week, it was about 8-9V, when it should be 12V. Joe waded to the solar charge controller and saw that the tower was drawing 14A, when we expected 2-3A, so something was shorting.

One of the NDVI sensors was shorting where the extension cable had been soldered on. The cable was hot and the black insulation had discolored to pink. Joe unplugged it and all systems seemed to be fine. Next time we will re-attach a new extension wire to the NDVI sensor.

I downloaded met, camera, and USB GHG data. There were Licor raw files from Oct 13 to Oct 14 2:30; there were no Licor summary files.

The wash reservoir was full, and Sam cleaned the EC/rad sensor.

LI-7500 readings:
CO2 459.3
H2O 600.3
T 25.6
P 101.9
SS 93.9 --> 96.9 after cleaning

LI7700 readings:
CH4 2.8
RSSI 23.8 --> 81.6 after cleaning

We left at 12:15.

0 photos found

11 sets found

14 EE_met graphs found