Field Notes

<--2018-10-11 11:15:00 | 2018-10-28 12:10:00-->
Other sites visited today: Bouldin Corn | Bouldin Alfalfa | West Pond | East Pond | Sherman Wetland | Mayberry | Sherman Barn
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East End: 2018-10-18 12:30:00 (DOY 291)
Author: Joe Verfaillie
Others: Daphne, Kyle, Gavin, Etienne

Summary: Tested tipping bucket, water was a little low, lots of wasps.

East End
2018-10-18

I arrived at 12:30 with Daphne and Kyle. Gavin McNicol and Etienne Fluet-Chouinard from Stanford were with us for a tour. It was sunny and warm with little to no wind. The vegetation is beginning to brown at the tips. The water level was 20cm – a bit low.

We cleaned and tested the tipping bucket sn 50229-112. We connected it to a CR6 and dribbled 475ml of water through it. This should result in 100 tips – we got 94 tips. We adjusted the set screws in the bottom by one half turn clockwise (+2-3%).

The 7500 read: 425ppm CO2, 600mmol/m3 H2O, 22.8C, 101.9kPa, 99SS – 102 after cleaning
The 7700 read: 2.32ppm CH4, 65RSSI – 71 after cleaning (pretty high CH4 - hot and no wind?)
The wash reservoir was nearly full and was refilled. There is duck weed in the reservoir which needs to be cleaned out when we find a cap for it.

The camera seemed to work okay. On reboot the program didn’t auto-start but needed to be started manually.

The top of the conductivity probe was just poking out of the water. I lowered it a bit.

There are wasps in the vertical scaffolding post just below the eddy equipment.

We left at 13:00

0 photos found

Graphs display:
11 sets found

14 EE_met graphs found

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