Field Notes

<--2020-08-28 15:05:00 | 2020-09-10 11:50:00-->
Other sites visited today: Tonzi | West Pond | Bouldin Alfalfa | Bouldin Corn

East End: 2020-09-01 15:40:00 (DOY 245)
Author: Daphne Szutu
Others:

Summary: Regular data collection/cleaning, hazy air, water level still low, some power problems--lost a few days of pre-dawn data

2020-09-01
East End

I arrived at 15:40 PDT. It was a windy and mild day with occasional gusts. The sky was hazy from wildfire smokeâ€”Mt. Diablo was nowhere to be seen. The water level is still too low to be read on the staff gauge. At least Â½ of the wetland is brown.

I downloaded met, camera, and USB GHG data. I cleaned flux and rad sensors. The wash reservoir was full. I changed the water level desiccant. There is no water under the tower and the water sensors (eosGP, miniDOT, conductivity) were all hanging in the air.

Looking at the data back in the lab, we lost a few days of pre-dawn data as the battery voltage drops below 11V. I need to check the solar panels and batteries next time.

LI-7500 readings:
CO2 401ppm
H2O 670ppm
T 26.6C
P 101.0kPa
SS 99 --> 100
LI7700 readings:
CH4 1.92ppm
RSSI 39 --> 80 after cleaning
I left at 16:05 PDT.

0 photos found

11 sets found

14 EE_met graphs found