Field Notes

West Pond: 2019-06-20 13:50:00 (DOY 171)
Author: Daphne Szutu
Others: Kuno, Robert, Camilo

Summary: Regular data collection/cleaning, first photos from zcam, new drill pad on Twitchell Alfalfa field

2019-06-20
West Pond

Kuno, Robert, Camilo, and I arrived at 13:50. It was sunny and windy with clear skies. The wetland surface is still dry (inlet was also off), and the wetland is mostly green. We saw a bunch of trucks on the Twitchell Alfalfa site which looked like they were setting up a drill pad. There was a waspâ€™s nest under the upper boardwalk that I forgot to knock away, so we should watch out next time.

I downloaded met, cam, USB GHG, and miniDOT data. NDVIout was NAN, so I power-cycled NDVIout and NDVIin. Kuno downloaded zcam data on the fluxalot laptop. Camilo cleaned flux and rad sensors and taped some mesh onto the non-sensor end of the radiation boom to prevent wasps from nesting inside. We swapped the desiccant in the miniDOT and for the water level sensor. The wash reservoir was mostly full; I topped it off. The 7700 optics RH was 26%, so we should be sure to flush it out during the next calibration.

LI-7500 readings:
CO2 404ppm
H2O 677ppm
T 26.4C
P 100.9kPa
SS 94--> forgot to write after cleaning
LI7700 readings:
CH4 1.92ppm
RSSI 52--> forgot to write after cleaning but it was >70

We left at 14:25.

2 photos found

20190620WP_DrillPad.jpg ( 2019-06-20 00:00:00 ) Full size: 1920x1440
A new drill pad is being built on the alfalfa field where our site Twitchell Alfalfa was. This is the view from the West Pond tower.

20190620WP_DrillPadOnAlfalfa.jpg ( 2019-06-20 00:00:00 ) Full size: 1920x1440
A new drill pad getting built on the alfalfa field where our site Twitchell Alfalfa was.