Field Notes

Hill Slough: 2021-09-03 09:00:00 (DOY 246)
Author: Daphne Szutu
Others: Carlos

Summary: Regular data collection/cleaning, barbed wire fence up, changed eddy clock +1min

2021-09-03
Hill Slough

Carlos and I arrived at 9:00 PDT. It was cold and breezy with hazy skies. A barbed wire fence has been set up on both sides of Grizzly Island Road, with a narrow open section for us to pass through in front of the boardwalk. A tractor was working on the levee south of the tower by the power towers.

I downloaded met, cam and USB GHG data. I downloaded the FD data and cleared its memory. Carlos cleaned flux and rad sensors.

I changed the eddy clock +1min to match the laptop time. I reset the 7550 and checked that the clock still looked good.
The wash reservoir was 20% empty; Carlos topped it off and found some sleepy wasps inside the reservoir.

LI-7500 readings:
CO2 392ppm
H2O 600ppm
T 16.9C
P 101.6kPa
SS 101 --> 102 after cleaning
LI7700 readings:
CH4 1.97ppm
RSSI 50 --> 70+ after cleaning

We left at 9:20 PDT.

1 photos found

20210904HS_FluxSensors.jpg ( 2021-09-03 09:10:25 ) Full size: 1920x1440
HS flux sensors