Field Notes

West Pond: 2021-03-04 12:30:00 (DOY 63)
Author: Daphne Szutu
Others:

Summary: Regular data collection/cleaning, HMP155 sensor had fallen out of shield--fixed

2021-03-04
West Pond

I arrived at 12:30 PST. It has now been a year since the start of COVID shelter-in-place orders. It was a mild and slightly breezy day with blue skies and hazy horizons. The wetland is still all brown, but the willow branches are growing with vigor. The staff gauge read 15cm. The water surface under the tower was covered with duckweed.

The HMP155 sensor had fallen out of its shield and was hanging upside down. I placed it back in its shield and tightened the nuts on the shield. The AirT/RH data looks ok and I don't think I can tell when the sensor fell out.

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

I was going to swap 7500s here for calibration, but I forgot this site is running the updated 7550 firmware. I want to calibrate a 7500 on the same firmware in the lab to swap here.

LI-7500 readings:
CO2 420ppm
H2O 423ppm
T 16.8C
P 102kPa
SS 101--> 102
LI7700 readings:
CH4 2.1ppm
RSSI 36--> 80 after cleaning

I left at 12:55 PST.

0 photos found

8 sets found

Can't check WP_DO
1 WP_DO graphs found