Field Notes

<--2017-10-04 09:40:00 | 2017-10-26 10:05:00-->
Other sites visited today: West Pond | Twitchell Alfalfa | Bouldin Corn | East End
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Bouldin Alfalfa: 2017-10-19 11:35:00 (DOY 292)
Author: Daphne Szutu
Others: Kyle, Dennis

Summary: Regular data collection, installed LI-7700, veg height, clip plots

2017-10-19
Bouldin Alfalfa

We arrived at 11:35. It was breezy, cool, and partly cloudy.

Kyle cleaned the radiation and 7500 sensors. I collected met, USB GHG, and camera data. There were some wasps in the met datalogger enclosure so we left some mothballs in. Next time, we should make sure the cable entries are sealed.

Dennis cleaned the solar panels and collected biomass samples (clip plots) and took vegetation height measurements.

Kyle installed a LI-7700, sn TG1-0223 and a filled wash box. The 7700 was originally removed from this site to put on a temporary tower, but now the towers are down we can return the 7700 to this site. I connected the 7700 to the 24V screw terminal inside the met datalogger enclosure. I forgot to check if the wash/pump was working and what the heat/wash cycle was, so we'll have to check that next time.

LI-7500 readings:
CO2 387.6 --> 402 after cleaning
H2O 654.2 --> 576 after cleaning
T 19.6
P 101.5
SS 93.7 --> 100.3 after cleaning

LI7700 readings:
CH4 1.95
RSSI 71

We left around 11:55.

Next Mowing: 2018-01-13

Veg Height (cm): Tape measure from ground to top of plant
15, 9, 17, 12, 15, 27, 13, 15, 13, 15, 19, 10, 13, 9, 19, 10, 12, 14, 14, 22, 8, 16, 12, avg = 14.3, stdev = 4.43

0 photos found

7 sets found

5 BA_flux graphs found