Field notes

Rietvell: 2026-08-11, 9:15 UTC (DOY 223)

Date & Time

11/08/26

Author

Iosif

Other participants

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Field report

The methane sensor wash reservoir was refilled from 50% capacity.

Flux sensors and radiometers were cleaned. No significant amount of spiders or spider webs were found on the CH4 and CO2 sensors. Notably, CO2 Signal Strength reached 100% after cleaning.

All Met data were downloaded and verified visually without issues. Both 30 minute and 1 minute tables that were defined specifically for the eclipse event.

Flux data were downloaded without issues using the download wizard.

Phenocam data were downloaded and was observed that the new capturing schedule that we defined last week had not registered. The capturing continued from 9:30 to 16:00 or so in 30 minute intervals.

After examining the script and command used to deploy a new schedule for the phenocam, it was estimated that a previous erroneous format of an argument lead to an unhandled error in the script that caused the scheduling to fail silently.

The phenocam schedule configuration script was ran again with properly formatted arguments and this time it appeared to register properly the new 1-min-interval capturing schedule.

The datalogger clock was checked and it was found to be 2 seconds behind laptop and UTC in general.

The phenocam was positioned approximately west with about 50% sky inclusion, for the eclipse event.

  Before cleaning sensors After cleaning sensors
LI-7500 readings
CO2 ppm 398.3 386
H20 ppm 31.55 33.4
T ºC 30.00 30.65
P kPa 101.8 101.84
SS % 91.9 100
LI-7700 readings
CH4 ppm 1.94 1.96
RSSI % 25.0 76.14