Field Notes

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Other sites visited today: Gilbert Tract | East End
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West Pond: 2022-02-18 15:00:00 (DOY 49)
Author: Daphne Szutu
Others: Joe

Summary: Regular data collection/cleaning, higher water level

2022-02-18
West Pond

Joe and I arrived around 15:00 PST. It was mild with thin, high clouds. Lots of water here, so much so that the wooden platform by the tower was half underwater. Joe used one of the extra lumber on the side to make a dry path to the scaffolding. The staff gauge read 84cm.

Joe cleaned flux and rad sensors and topped off the wash reservoir. I downloaded met, cam, and USB GHG data. I uploaded a new met datalogger program to fix a typo in the Bowen-variance calculations. I accidentally used [Pa]=[kPa]/1000 initially, but now it’s corrected to [Pa]=[kPa]*1000.

LI-7500 readings:
CO2 418ppm
H2O 383ppm
T 21.6C
P 102.2kPa
SS 98--> 99 after cleaning
LI7700 readings:
CH4 2.1 ppm
RSSI 34--> 83 after cleaning

We left around 15:20 PST.

Looking at the data back in the lab, the HMP air temperature and RH data were spiky for 5-6 days at the start of the month. Data seems ok now but I'll check the sensor next time.

0 photos found

8 sets found

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1 WP_DO graphs found