Field Notes

East End: 2021-08-04 14:50:00 (DOY 216)
Author: Daphne Szutu
Others: Carlos

Summary: Regular data collection/cleaning, windy, no water at tower, flipped reference PAR sensor upside down

2021-08-04
East End

Carlos and I arrived at 14:50 PDT. It was warm, sunny, and windy with hazy horizons from the Bradford Island fire. The wetland is looking tall and green. There was no water under the tower, so the miniDOT and conductivity sensor were completely dry. The water level was below the 10cm line on the staff gauge, and it was hard to dig into the soil to see the water table height. We found the level on the upper boardwalk; we must have forgotten it last time.

I downloaded met, camera, USB GHG, and the miniDOT data. Carlos cleaned flux and rad sensors. He also releveled at least 1 pair of the Apogee NDVI sensors. We topped off the wash reservoir.

I downloaded the radiometer cal kit data and it looked ok, so Carlos flipped the PAR sensor upside down to measure reflected PAR for the next 2 weeks.

LI-7500 readings:
CO2 404ppm
H2O 440ppm
T 29.4C
P 101.1kPa
SS 99 --> 99 after cleaning
LI7700 readings:
CH4 1.97
RSSI 38 --> 80 after cleaning

We left around 15:15 PDT.

Back in the lab, I e-mailed Bryan about the low water levels. He said they have just fixed the siphon there and he'll keep an eye on it.

0 photos found

11 sets found

14 EE_met graphs found