Field Notes

Bouldin Alfalfa: 2018-01-16 13:20:00 (DOY 16)
Author: Daphne Szutu
Others: Dennis, Kyle, Sam

Summary: Regular data collection/cleaning, veg height, biomass samples, sheep at far end of footprint

2018-01-16
Bouldin Alfalfa

We arrived at 13:20. It was cloudy and cool with a slight breeze. The roads by the field seemed a bit drier than last time, but it's still slippery and 4WD is nice to have. I parked by the side of the road instead of driving down into the field to be safe. There are sheep on the western side of the field, at the far end of our footprint.

Kyle cleaned the wash reservoir; it was was 1/2 full. Sam cleaned the rad and flux sensors. There have been birds sitting on the radiation sensor pole.

Dennis took veg height measurements. Kyle did clip plots (biomass samples).

I collected met, camera, and USB GHG data. The gasket around the met datalogger enclosure is loose and should be re-glued. This enclosure also needs mothballs.

LI-7500 readings:
CO2 438 ppm
H2O 560 ppm
T 13.2 C
P 102.3 kPa
SS 106 --> 107 after cleaning

LI7700 readings:
CH4 2.16 ppm
RSSI 53 --> 81 after cleaning

We left around 13:55.

Next Mowing: 2018-03-30

Veg Height (cm): Tape measure from ground to top of plant
30, 36, 23, 29, 27, 20, 23, 21, 22, 17.5, 20, 19, 27, 22, 19.5, 19, 16.5, 18, avg = 22.8, stdev = 5.15

0 photos found

7 sets found

5 BA_flux graphs found