Field Notes

<--2020-09-22 10:10:00 | 2020-09-30 09:30:00-->
Other sites visited today: East End | Bouldin Alfalfa | Bouldin Corn
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West Pond: 2020-09-23 09:30:00 (DOY 267)
Author: Daphne Szutu
Others:

Summary: Regular data collection/cleaning, water level back up, dirty radiometers, 2 thermocouples not working

2020-09-23
West Pond

I arrived at 9:30 PDT. It was a sunny and breezy day with blue skies. The reeds are mostly green. The inlet was on and the water level is back up again. The staff gauge read 68 cm. I heard frequent shooting sounds, maybe a bird cannon for the rice? I trimmed the willows by either side of the tower.

I downloaded met, camera, USB GHG, and miniDOT data. I cleaned flux and rad sensors and topped off the wash reservoir. It looked like the birds had quite a party on the tower: the SWin and LWin sensors were dirty, 2 of the 3 sonic spikes were pointing downward, 1 sonic spike was half broken, and the camera was pointing downward. I adjusted the camera and sonic spikes back up. One sonic spike needs to be replaced.

I replaced the miniDOT and water level sensor desiccant.
TC15 and TC21 have been NAN since early September. Rewiring them into adjacent, working channels did not work, so we should inspect the thermocouples eventually. 3 of the 24 thermocouples here are broken.

LI-7500 readings:
CO2 401ppm
H2O 556ppm
T 28.5C
P 101.7kPa
SS 96--> 100
LI7700 readings:
CH4 1.9ppm
RSSI 37--> 78 after cleaning

I left at 11:30 PDT.

0 photos found

8 sets found

Can't check WP_DO
1 WP_DO graphs found