Field Notes

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Vaira: 2025-05-15 02:20:00 (DOY 135)
Author: Joe Verfaillie
Others: Kuno

Summary: No well level, spectra, removed last FD chamber and extra PAR, reverted CR1000 program.

Vaira
2025-05-15

Kuno and I arrived at about 3:20 PDT. It was clear, sunny and warm. The grass here is pretty yellow. The vetch flowers are gone. The water hole is still about 3/4 full. The well level meter has a dead battery and I forgot the Jaz again.

I collected the flux, met, FD and camera data. The camera data had five weeks of data as I missed it last time. The FD had data but it's bad because I think the CO2 sensor died. I removed FD sensor sn FD20160001 and all of its tie downs.
The 7500 read: 437.1ppm CO2, 356.7mmol/m3 H2O, 33.6C, 99.4kPa, 101.7SS

The extra reflected PAR sensor I put in last time was slightly tilted but seem to have nearly identical data to the permanent one. So I removed PAR sn 030382 and reverted the CR1000 program to the 20250207 version.

Somehow I missed downloading the soilvue and 5min met data.

I left the fence un-powered as the grass is getting dry. The grass was about 50cm tall.
We left at about 13:50 PDT

Field Data

No tank data

Well Depth