Field Notes

West Pond: 2020-10-22 11:20:00 (DOY 296)
Author: Daphne Szutu
Others:

Summary: Regular data collection/cleaning, water level lower, lowered minidot into water, camera off--no photos, changed eddy clock +2min

2020-10-22
West Pond

I arrived at 11:20 PDT. It was a sunny, windy, and dusty day. There were blue skies above but sufficient haze at the horizons to cover Mt. Diablo. The inlet was off and the water level has gone down a bit. The staff gauge read 35cm. The wetland still looks mostly green.

The miniDOT was hanging in the air, and I lowered it so it was about 5cm under water.

I downloaded met and USB GHG data. The camera was off and there were no photos. Last time I had fixed a loose wire on the DC-DC converter inside the met box and had forgotten to check the camera afterwards. When the eddy clock read 10:36, I changed it to 10:38 to sync it with the laptop time. I reset the 7550 box and all looked ok. I cleaned flux and met sensorsâ€”lots of cattail fluff and spider webs. I left some prophylactic mothballs in the met box and topped off the wash reservoir.

LI-7500 readings:
CO2 403ppm
H2O 293ppm
T 22.5C
P 101.2kPa
SS 95--> 101
LI7700 readings:
CH4 2.0ppm
RSSI 37--> 72 after cleaning

I left at 11:45 PDT.

0 photos found

8 sets found

Can't check WP_DO
1 WP_DO graphs found