Field Notes

East End: 2024-01-04 12:20:00 (DOY 4)
Author: Joe Verfaillie
Others: Dennis

Summary: Year end data collection, swapped 7500 for calibration, all seemed well.

East End
2024-01-04

Dennis and I arrived at 12:20 PST. It was clear sunny and mild with little to no wind. No trouble finding the site this time. There were some big mushrooms along the edge of the road. The boardwalk as damp and slippery. The water level was 62cm.

Dennis cleaned the eddy sensors and the radiometers. We swapped the 7500 for calibration: sn 75H-2182 came off and sn 75H-2180 went on. I didn’t get the numbers all written down before Dennis detached the cable so take the 2182 numbers as rough.
2182 read: 444.6ppm CO2, 316.5mmol/m3 H2O, 15.8C, 102.4kPa, 96.2SS
2180 read: 427.6ppm CO2, 410.2mmol/m3 H2O, 16.1C, 102.4kPa, 100.3SS
I fixed the pressure coefficients and restarted the box.

The 7700 read: 2.1ppm CH4, 54RSSI with spider webs – 74.5 after cleaning.
The wash reservoir was refilled by about 1/4

I collected the flux, met, camera and miniDot data. The miniDot might be resting on the bottom. The rain bucket looked clean.

We left at 12:44 PST

1 photos found

20230104EE_Mushroom.jpg ( 2024-01-04 12:17:28 ) Full size: 1920x1440
Big mushrooms growing on the edge of the road