Field Notes

West Pond: 2021-07-06 13:35:00 (DOY 187)
Author: Daphne Szutu
Others: Carlos

Summary: Regular data collection/cleaning, added 5min table to met datalogger, turned reference PAR sensor upside down, changed eddy clock +2min

2021-07-06
West Pond

Carlos and I arrived at 13:35 PDT. It was breezy, warm, and felt overall dry and dusty. The willows continue growing into and over the levee roads. The inlet was off. The staff gauge read 56cm.

I downloaded met, cam, USB GHG, and miniDOT data. I added a 5min met data table to the met CR1000 program that we can send to Arable for their intercomparison by copying the 5min met data tables from BA and BC. I changed the desiccant for the miniDOT and water level sensors. We topped off the wash reservoir. Carlos cleaned the flux and rad sensors. One of the upper sonic transducers had a white residue on it that Carlos cleaned off.

I downloaded the cal kit data and Carlos turned the reference PAR to face downward so it can measure reflected PAR until the next site visit.

I checked the eddy clock and changed it from 12:37 to 12:39 to match the laptop time. I restarted the 7550 and checked that the clock was still good.

LI-7500 readings:
CO2 402ppm
H2O 660ppm
T 26.5C
P 101kPa
SS 98 --> 99 after cleaning
LI7700 readings:
CH4 2.0
RSSI 50 --> 83 after cleaning

We left at 14:05 PDT.

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