Field Notes

Sherman Barn: 2019-03-14 09:45:00 (DOY 73)
Author: Camilo Rey-Sanchez
Others: Daphne, Alex

Summary: Regular data collection and cleaning. Switch in radiation sensors and new program upload. Spectral measurements.

2019-03-14
Sherman Barn

We arrived at 9:45. It was sunny, with clear skies and cold breeze. The grass was quite long around the tower.

Alex took spectral measurements (file # 14-23; previous files were absorbance, not reflectance). Water reservoir was 3/4 full and was refilled. Daphne downloaded met, camera, and USB GHG data. Daphne switched SWin with SWout (SWout had many gaps) and PARin with PARout (PARout had some gaps). Daphne swapped the desiccant of the WL sensor. Camilo replaced the precipitation screen. The NR01 PRT had spikes the past few days and it was NAN when we arrived. Daphne moved it from VX2 to VX3 but it was still NAN, so we unwired and rewired 7L and that fixed it. Daphne updated the CR1000 data logger program to reflect the 3 wiring changes.

LI-7500 readings:
CO2 410ppm
H2O 273ppm
T 11.1C
P 102.8kPa
SS 96-> 97 after cleaning.

LI7700 readings:
CH4 2.1ppm
RSSI 56--> 73 after cleaning

We left at 10:10.

0 photos found

3 sets found

4 SB_flux graphs found