Field Notes

East End: 2021-01-17 14:00:00 (DOY 17)
Author: Daphne Szutu
Others: Mike

Summary: Regular data collection/cleaning, unseasonably warm day, 7700 reservoir empty but RSSI looked ok

2021-01-17
East End

Mike and I arrived around 14:00 PST. It was a sunny and unseasonably warm day with clear skies and a small breeze. Itâ€™s been mostly dry these past 2 weeks, and weâ€™re expecting a wind event over the next 2 days. As we drove toward the tower from the south, there was a small 4-legged animal running away from us on the gravel road going about 25mph. Maybe a fox? We could hear occasional hunting sounds, even though itâ€™s not a hunting day.

The staff gauge read 33 cm. The reservoir was empty; I refilled it. The RSSI and data over the past 2 weeks seem fine, and Iâ€™m not sure why the reservoir is usually empty/low here.

I downloaded met, cam, and USB GHG data. I cleaned the flux and rad sensors.

The Apogee NDVI_in data still has a lot of NANs. I guess fixing the loose wiring last week didnâ€™t help as much as I thought. Maybe there is something wrong with this sensor.

LI-7500 readings:
CO2 430ppm
H2O 504ppm
T 23.7C
P 101.7kPa
SS 98 --> 100 after cleaning
LI7700 readings:
CH4 2.3 after cleaning
RSSI 62 --> 82 after cleaning

We left at 14:30 PST. We let Bruce in through the gate as we were driving out.

0 photos found

11 sets found

14 EE_met graphs found