Field Notes

West Pond: 2021-06-09 13:00:00 (DOY 160)
Author: Daphne Szutu
Others: Ariane

Summary: Regular data collection/cleaning, windy, removed mud miniDOT, disconnected TC21

2021-06-09
West Pond

Ariane and I arrived at 13:00 PDT. It was windy and mild with mostly clear skies. The inlet was off and the staff gauge read 46 cm. More green reeds are poking out of the brown thatch. No sheep seen on the levee roads this time.

Ari put on waders and removed the miniDOT sn 899502 that had been buried in the mud. It was measuring the mud around 30cm deep? near the 0.5 footprint area?

I downloaded met, camera, USB GHG and miniDOT data. Ari cleaned flux and rad sensors. The wash reservoir was 90% full; we topped it off. I swapped desiccant for the miniDOT and water level sensor.

I disconnected TC21 from the AM25T multiplexer. It has been mostly NANs with occasional bad data.

I checked the conductivity sensor as part of its routine check every 3 monthsâ€”the orifice was clean.

LI-7500 readings:
CO2 408ppm
H2O 432ppm
T 21.5C
P 101.9kPa
SS 97 --> 99 after cleaning
LI7700 readings:
CH4 2.02
RSSI 36 --> 83 after cleaning

We left at 13:20 PDT.

0 photos found

8 sets found

Can't check WP_DO
1 WP_DO graphs found