Field Notes

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Vaira: 2023-05-30 11:30:00 (DOY 150)
Author: Joe Verfaillie
Others: Dennis, Ngoc Nguyen

Summary: Standard data collection, end-of-season biomass samples, cool for this time of year.

Vaira
2023-05-30

Dennis, Ngoc Nguyen and I arrived at about 11:30 PDT. It was clear sunny and unusually cool for this time of year with a nice breeze from the west. There is still some green grass and flowers in the low spots but mostly the grass is yellow and has all gone to seed – lots of stickers in your socks. The trees look green and full of leaves.

Dennis measured the well and then helped Ngoc take five end-of-season biomass samples. Looks like the Davis crew recently took three biomass samples from inside their fence too. Dennis also did veg height but it is very patchy - mostly about thigh to waist high but some of the longest seed stalks almost shoulder high and other spots much shorter.

I collected the flux, met, camera and FD data. All looked well. I cleaned a bunch of spider webs off the eddy sensors.
The 7500 read: 420.1ppm CO2, 533.7mmol/m3 H2O, 25.2C, 99.2kPa, 100.5SS

I also did spectral measurements and cleaned the radiometers which were pretty clean already.

We went to the pond and skipped some stones. All seemed well there.

We left at about 12:30 PDT

Field Data

No tank data

Well Depth