Field Notes

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Other sites visited today: Hill Slough | Tonzi

Vaira: 2024-04-10 11:20:00 (DOY 101)
Author: Joe Verfaillie
Others:

Summary: Standard fieldwork, new cable for north FD, Jaz battery dead, lots of cows, trees still putting on leaves

Vaira
2024-04-10

I arrived at 11:20 PDT. It was warm and sunny with a very light breeze and high thin clouds. The grass is seeding but there is more rain coming this weekend. Lots of happy cows around reclining in the shady grass under the trees. The trees have leaves but still not quite a full canopy I think. There are still puddles on the road.

I measured the well and then installed a new longer cable to the north FD chamber. The cable now connects inside the eddy box. I removed the old soil CO2 box and power connection inside the solar controller box. I collected data with the new cable.

I collected the met, flux, and camera data.
The 7500 read: 425.2ppm CO2, 523.5mmol/m3 H2O, 23.9C, 100.1kPa, 103.1SS

I cleaned the Phenocam window inside and out – might be a small shift in FOV.

I tried to do spectral measurements but the Jaz battery was dead – it couldn’t complete the boot. I measured veg height but it is pretty patchy 10-30cm with some flowers higher.

I left at 12:20 PDT

Field Data

No tank data

Well Depth

Date	Location	Depth (feet)
2024-04-10	HS	3.88
2024-04-10	VR_well	52.55
2024-04-10	TZ_floor	19.7
2024-04-10	TZ_road	28.53
2024-04-10	TZ_tower	23.05
2024-04-10	VR_well	52.55
2024-04-10	TZ_floor	19.7
2024-04-10	TZ_road	28.53
2024-04-10	TZ_tower	23.05