Field Notes

<--2013-04-11 10:15:00 | 2013-05-09 14:40:00-->
Other sites visited today: Sherman Island | Twitchell Rice | DWR Corn | West Pond

Mayberry: 2013-04-26 11:15:00 (DOY 116)
Author: Cove Sturtevant
Others: Sara, Wyatt

Summary: Site continues to green. Fixed tule CO2 thermocouple. Vaisala t/rh was out of radiation shield. Set 7550 clock to London time instead of UTC (whoops). All else well.

Mayberry
2013-04-26

We arrived about 11:15 PDT. It was warm and breezy. The tules continue to green up. Sara and Wyatt went out in the water to clean all instruments and collect water samples while I attended to the tower. The Tule CO2 thermocouple was reading INF and Sara fixed it by tightening a loose connection in the datalogger. The Vaisala temp/rh probe was hanging free of its radiation shield when I arrived. I replaced it. I also set the clock on the 7550 to what I thought was UTC time but Joe is going to kill me because I set it to London time instead, which I realized later was 1 hour ahead of UTC. Sorry Joe, will fix next week.

7500 readings:
CO2: 371 ppm (383 after cleaning)
H2O: 681 mmol m-3 (650 after cleaning)
agc: 32.3 (adjusted to 28.5)
p = 102.3 kPa

Current 7700 readings:
CH4 = 1.91 ppm
RSSI = 28.5 (adjusted to 66 after cleaning)
Reservoir full.

MET looked good.

1 photos found

MB_autocam_20130425_0815.jpg ( 2013-04-25 08:15:02 ) Full size: 1920x1440
Heron