Field Notes

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Other sites visited today: Bouldin Corn | Mayberry | East End | West Pond
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Gilbert Tract: 2023-10-27 10:40:00 (DOY 300)
Author: Joe Verfaillie
Others: Daphne

Summary: New 7500 box to replace broken one, all seemed well.

Gilbert Tract
2023-10-27

Daphne and I arrived at 10:40 PDT. It was clear, sunny and cool with almost no wind. The black birds were busy with a morning chorus. This was a quick stop to replace the 7550 box that was removed yesterday due to power problems. The water level was 30.0cm as 9:56 PST.

We brought box sn AIU-1569 from the calibration station in the lab. It didn’t have any mounting hardware but we attached it the wooden 2x4 with screws like it was meant to be. The current head is 2669. We uploaded the config file from 2023-08-04, the pressure coefficient were correct. Daphne connected the 7700 in the software and updated the clock by -1min to match the laptop clock. After a box reset all seemed well.
The 7500 read: 440ppm CO2, 465mmol/m3 H2O, 19.3C, 101.6kPa, 100SS
The 7700 read: 2.25ppm CO2, 80RSSI

I cleaned the Eddy sensors and radiometers.

We left at 11:00 PDT.

1 photos found

gilberttract_2023_10_26_091405.jpg ( 2023-10-26 17:19:02 ) Full size: 1296x960
Dennis cleaning the radiometers