Field Notes

West Pond: 2021-04-27 14:30:00 (DOY 117)
Author: Daphne Szutu
Others:

Summary: Regular data collection/cleaning, windy day, willow trees need trimming

2021-04-27
West Pond

I arrived at 14:30 PDT. It was warm and breezy. There were a few sprinkles of rain a few days ago on Sunday, but that might be the last of the rain for this season. It was warm and breezy and the wetland is greening up slowly. The staff gauge read 52 cm. We should trim the willow trees on the road leading up to the tower.

I downloaded met, camera, and USB GHG data. I cleaned the flux and rad sensors and topped off the wash reservoir. When I was cleaning the upper 7700 window, I hit loose the screw that is attached to the desiccant bottle stopper (helps you pull out the stopper so you can swap the optics desiccant). The screw dropped into the wetland below, but I think we have spares in the lab.

LI-7500 readings:
CO2 395ppm
H2O 344ppm
T 26.2C
P 101.5kPa
SS 90--> 98
LI7700 readings:
CH4 1.96ppm
RSSI 56--> 79 after cleaning

I left at 14:50 PDT.

0 photos found

8 sets found

Can't check WP_DO
1 WP_DO graphs found