Field Notes

East End: 2021-01-03 12:45:00 (DOY 3)
Author: Daphne Szutu
Others: Mike

Summary: Regular data collection/cleaning, dropped clipboard in water, Apogee NDVI in wiring loose--fixed, increased 7700 spin to 45sec

2021-01-03
East End

Mike and I arrived at 12:45 PST. It was calm, cool, and partly overcast. We could hear foghorn and occasional hunting sounds. The staff gauge read 30cm. I dropped the clipboard in the water briefly, but it wasnâ€™t too bad. Itâ€™s been raining a bit in the past few weeks, but the roads were still fine. Itâ€™s forecast to rain more this coming week.

I downloaded met, camera, USB GHG, and miniDOT data. I cleaned flux and rad sensors and swapped the miniDOT and water level sensor desiccants. The reservoir was empty; I refilled it to 70% full to save on DI water for the remaining sites.

The Apogee NDVI_in data wire was looseâ€”fixed.

I checked the 7700 spin and wash. Visually, they both seemed fine. After the spray finished, it took about 40 seconds to return back to a clean RSSI around 80. I left the spray at 10sec and changed the spin from 30sec to 45sec to reflect this. Iâ€™ll check the other 7700s to see if their spin times should also be increased.

LI-7500 readings:
CO2 417ppm
H2O 533ppm
T 16.3C
P 102.2kPa
SS 98 --> 100+ after cleaning
LI7700 readings:
CH4 2.0 after cleaning
RSSI 54 --> 81 after cleaning

We left at 13:20 PST.

0 photos found

11 sets found

14 EE_met graphs found