Field Notes

Bouldin Corn: 2019-01-31 15:10:00 (DOY 31)
Author: Daphne Szutu
Others: Kuno, Jiangong

Summary: Regular data collection/cleaning, swapped 7500 for calibration, 7700 clock sync error

2019-01-31
Bouldin Corn

Kuno, Jiangong, and I arrived at 15:10. It was sunny with fog/clouds at the horizon. The field is slowly draining; only our corner of the field is still flooded.

I collected met, camera, and USB GHG data. We refilled the wash reservoir. Kuno and Jiangong cleaned the flux and rad sensors and swapped the 7500 for calibration: sn 75H-2668 came off and sn 1594 went on. After the swap, I updated the configuration file, updated the pressure coefficients, and rest the box. There was a 7700 clock sync error, so I set the 7700 time setting to slave and reset the box, which resolved the problem.

LI-7500 readings (sn 75H-2668 --> sn 75H-2668 clean --> sn 1594):
CO2 443ppm --> 445 --> 448
H2O 550ppm --> 570 --> 549
T 17.7C --> 17.1 --> 21.7
P 100.6kPa --> 100.6 --> 101.2
SS 98 --> 102 after cleaning --> 101

LI7700 readings:
CH4 2.3ppm
RSSI 60 --> 90 after cleaning
We left at 15:35.

0 photos found

6 sets found

17 BC_met graphs found