Field Notes

Bouldin Alfalfa: 2019-01-03 14:30:00 (DOY 3)
Author: Daphne Szutu
Others: Joe

Summary: Regular data collection/cleaning, field probably grazed by sheep soon

2019-01-03
Bouldin Alfalfa

Joe and I arrived at 14:30. It was cold and mostly overcast. The alfalfa is beginning to dry out at the tips (frost damage). There are sheep to the field north and northeast of us, and our field will probably be grazed soon.

Joe cleaned the flux and rad sensors and checked on the battery and solar charge controller boxes.

The wash reservoir was 1/5 empty; we refilled it. Joe fixed the HMP fan with more putty. The 7500 needs new spikes.

I downloaded met, camera, USB, and FD data. After downloading, I cleared the FD data and synched it with the laptop time. It was ~30 sec off. There was a time sync error between the 7550 and 7700. I reset the 7550 box, which fixed the error.

LI-7500 readings:
CO2 436ppm
H2O 422ppm
T 12.1C
P 102.2kPa
SS 107-->108 after cleaning

LI7700 readings:
CH4 2.3ppm
RSSI 58 --> 74 after cleaning

We left at 14:50.

Next Mowing: 2019-01-22

0 photos found

7 sets found

5 BA_flux graphs found