Field Notes

Bouldin Alfalfa: 2017-04-27 09:45:00 (DOY 117)
Author: Daphne Szutu
Others: Sam Chamberlain

Summary: Regular data collection/cleaning, alfalfa has been mowed

2017-04-27
Bouldin Alfalfa

We arrived at 9:45. It was cool, windy, and overcast. The alfalfa has been mowed; Sam clipped the alfalfa under the tower.

I cleaned the radiation and EC sensors and refilled the wash reservoir; it was 5/6 full. I collected the met and USB GHG data and swapped the camera card.

After I put in the fresh camera card, I checked the card files with Logger Net File Control. I expected the card to be blank, but there were about 20 files on the card; the files names consisted of symbols and the files were dated with year 2040+. I reformatted the card (using the Format button on the File Control window), and this deleted all the files. Hopefully the card is working normally now.

LI7500 readings:
CO2 400.4 umol/mol
H2O 535.5 mmol/m3
T 16.3 Celsius
P 101.7 kPa
SS 104.8 -> 106.8 after cleaning

LI7700 readings:
CH4: 2.1
RSSI: 44.8 -> 78.2 after cleaning

We left at 10:10.

Next Mowing: 2017-05-27

1 photos found

20170427BA_mowed.JPG ( 2017-04-27 09:45:21 ) Full size: 1920x1440
Recently mowed alfalfa, and Sam is trimming the plants by the tower.