Field Notes

East End: 2023-09-12 14:10:00 (DOY 255)
Author: Daphne Szutu
Others: Joe

Summary: Regular data collection/cleaning, sonic needs spikes

2023-09-12
East End

Joe and I arrived at 14:10 PDT and it was sunny and warm. It’s been three weeks since the last site visit. I meant to come last week but Kyle and I were sampling methane bubbles at Mayberry and ran out of time to finish all of the Delta sites.

The staff gauge read 84cm. The wash reservoir was 4/5 full; refilled. Joe cleaned flux and rad sensors.

I downloaded met, cam, and USB GHG data. I changed the eddy clock +1:30min from 13:26:30 to 13:28 PST and restarted logging. I downloaded the miniDOT data and swapped its batteries as part of its ~annual swap. I also swapped the desiccant for the miniDOT and water level sensors. The miniDOT may be sitting on the bottom since the plastic chain was slack when the sensor was in the water. I think Joe shortened the chain slightly.

We still need two spikes for the sonic here.

The 7500 read: 417ppm CO2, 670mmol/m3 H2O, 29.9C, 101.1kPa, 101SS – 102 after cleaning
The 7700 read: 2.1ppm CH4, 21RSSI – 83 after cleaning

We left at 14:30 PDT.

0 photos found

11 sets found

14 EE_met graphs found