Field Notes

Twitchell Alfalfa: 2017-01-17 13:50:00 (DOY 17)
Author: Daphne Szutu
Others: Elke Eichelmann, Kyle Hemes

Summary: Regular data collection, shadow band was not rotating, LI6400 had high humidity alert

We arrived at 13:50. It was cool, overcast, and foggy. The ditch was quite muddy so we drove along the field to the tower. As we drove up, a bird (hawk?) was sitting on the camera enclosure; it pooped on the solar panel and flapped away.

Elke cleaned the solar panels, LI7500, and radiation sensors. She also re-attached bird spikes on the LI7500 and sonic.

Kyle took soil respiration measurements, but it seemed to take longer than usual. The LI6400 had a high humidity alert.

I collected met, soilco2, and GHG USB data, and swapped the camera CF card.

The 7500 read:
CO2 408.4 ppm
H2O 409.2 mmol/m3
T 8.4 C
P 102.1 kPa
SS 96.2 --> 103.5 after cleaning

We left at 14:30.

0 photos found

7 sets found

Can't check TA_met
11 TA_met graphs found