Field Notes

<--2015-09-16 10:30:00 | 2015-10-15 10:40:00-->
Other sites visited today: Mayberry | Twitchell Alfalfa | West Pond | East End

Twitchell Rice: 2015-09-30 09:30:00 (DOY 273)
Author: Sara Knox
Others: Joe, Kyle

Summary: moved tower back in the field, calibrated 7700, and normal data download

We arrived at 9:30am. It was rainy, cool and breezy. The field was harvested and disked, but not flooded yet. We moved the tower back into the field and installed all ground sensors. Soil heat flux plate sn 6499 was installed to replace the one that was broken on removal. The soil TC profiles were cleaned up and repaired in the lab. Joe installed and fixed the boardwalk leading to the tower. We downloaded data and calibrated the LI-7700 sn TG1-0211

We need to measure instrument heights and boom direction next time. The top of the well is 50 cm above the soil surface and the pressure transducer was installed 80 cm from the top of the well.

7500
CO2: 392 Âµmol/mol
H2O: 619 mmol/m3
SS: 76.9 %
Pressure: 102.01 kPa
Temperature: 17.48 ËšC
7700
CH4: 1.909 ppm
RSSI: 40.9% (73.4% after cleaning)

Reservoir: filled since it was about 1/2 empty
Met: OK

1 photos found

TW_autocam_20150930_1815.jpg ( 2015-09-30 18:15:03 ) Full size: 1920x1440
Nice sunset