Field Notes

<--2020-08-28 09:20:00 | 2020-09-10 15:00:00-->
Other sites visited today: Tonzi | East End | West Pond | Bouldin Corn
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Bouldin Alfalfa: 2020-09-01 13:55:00 (DOY 245)
Author: Daphne Szutu
Others:

Summary: Regular data collection/cleaning, hazy sky, one forced diffusion chamber not powered since 8/5--fixed, missing photos since phenocam swap on 8/26

2020-09-01
Bouldin Alfalfa

I arrived at 13:55 PDT. It was a windy and mild day with occasional gusts. The sky was hazy from wildfire smokeâ€”Mt. Diablo was nowhere to be seen. The alfalfa is flowering and tall, with many butterflies and some wasps buzzing about. The fields north of us have been mowed, so our field will probably be mowed soon. Camilo saw a crop duster last week, but I didn't notice any dead weeds or sticky residue on the scaffolding, though I was wearing my gloves and might not have noticed.

I downloaded met, camera, and USB GHG data. There were no photos on the card since 8/26 when Joe swapped the phenocam for one with an upgraded firmware. Joe says this site needs an ethernet switch and some more ethernet cables.

I cleaned flux and rad sensors. I topped off the wash reservoir. I downloaded and cleared both FD chambers. The older FD chamber (sn FD20160001) had not been powered since Aug 5. I think there was an issue with the wiring on the pluggable power strip. Both chambers are powered now.

LI-7500 readings:
CO2 400ppm
H2O 758ppm
T 26.0C
P 101.3kPa
SS 104--> 105 after cleaning
LI7700 readings:
CH4 1.97ppm
RSSI 33-->70 after cleaning

I left at 14:30 PDT.

Next Mowing: 2020-09-05

0 photos found

7 sets found

5 BA_flux graphs found