Field Notes

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Other sites visited today: Rush Ranch | Hill Slough | Bouldin Corn | Gilbert Tract
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East End: 2025-05-23 11:00:00 (DOY 143)
Author: Joe Verfaillie
Others:

Summary: Standard data collection, swapped rotating shadow band box/motor, picam still misbehaving - forgot to bring new one

East End
2025-05-23

I arrived at about 12:00 PDT. It was clear sunny and warm with a nice breeze. The water level was high at 84.5cm just below the bottom boardwalk. The wetland is still greening up. A big swarm of bees pass overhead while I was there in search of a new home.

I collected the met and flux data and cleaned the eddy sensors and the radiometers.
The 7500 read: 424.8ppm CO2, 506.4mmol/m3 H2O, 23.3C, 101.3kPa, 93.0SS - 98.5 after cleaning
The 7700 read: 2.03ppm CH4, 50.3RSSI - 81.6 after cleaning.
I topped off the wash reservoir.

One of the main goals today was to bring a new picam to swap out the one here but I forgot to bring the new one. The current one shows up on the wifi list but won't let me connect. I hope it is still taking photos. I'll swap it next week.

The rotating shadow band is also having trouble here. If you pull on the black wire on the back of the motor it will start spinning again for a while. I brought a new motor, box and band to swap it out. The new one is a 2Hz motor with a motor controller but mounted to the box wall - not offset with the shaft coupler and bearing. Swapping it went fine and it was working again.

I looked in the CR10x box that controls it. There were some ants. I lift the dregs of the mothball jar but will need to buy some new moth balls.

I collected the minidot data and did water salinity
Surface, 194.0uS, 16.1C

I left at about 12:50 PDT

0 photos found

11 sets found

14 EE_met graphs found