Field Notes

<--2012-10-04 11:30:00 | 2012-10-18 12:20:00-->
Other sites visited today: Sherman Island | Mayberry | West Pond | DWR Corn
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Twitchell Rice: 2012-10-11 11:30:00 (DOY 285)
Author: Cove Sturtevant
Others: Sara, Laurie, Christina

Summary: Site continues to dry, though still moist. Rice plants are yellowish. Brian expects harvest in a month. Downloaded data, marked sensor cables with flagging, took clippings, LAI, and spectral.

Twitchell
2012-10-11

We arrived at approximately 11:30 PDT. Increasing clouds, breezy, and cool. The soil in the field continues to dry, although still moist, and the plants are mostly yellow. We were there when Dennis showed the Nature Conservancy folks around the site. Brian expected harvest in about a month.

I checked the tower, downloaded the data and camera pics, washed the solar panels, filled the 7700 reservoir, and marked the sensor cables leading into the rice with orange flagging in case Jim needs to pull them. Laurie and Christina did LAI, spectral, and took clippings.

Current 7500 readings:
CO2 = 392 ppm
H2O = 580 mmol m-3
agc = 43.8

7700 readings:
CH4 = 1.8 ppm
RSSI = 32 (bumped to 70 after cleaning)

MET values looked fine.

2 photos found

TW_autocam_20121010_1815.jpg ( 2012-10-10 18:15:04 ) Full size: 1920x1440
Nice sunset