Field Notes

Mayberry: 2013-06-13 11:00:00 (DOY 164)
Author: Cove Sturtevant
Others: Laurie, Yanel

Summary: Water samples. Changed 7550 clock back 1 day. Replaced LED sensor cover. All well.

Mayberry
2013-06-13

Yanel, Laurie, and I arrived about 11:00 PDT. It was warm, sunny and breezy. The site continues to be very green with a bit of old plant material visible. Laurie and Yanel went out in the water to grab water samples, clean the instruments, grab the s/n for the CO2 probe in the tules (H06300701) and replace the cap on the LED sensor that was missing one last week.

I downloaded the data and attended to the tower. Last week I could have sworn I changed the clock on the 7550 back one day to correct it, but it was again 1 day ahead this week. Perhaps I did not save the settings when I changed it. This week I reset it to the correct day (changed from 6/14 10:16 to 6/13 10:16) and made sure to save it.

7500 readings:
CO2: 380 ppm (same after cleaning)
H2O: 460 mmol m-3 (550 after cleaning)
signal strength = 83.2% (83.8% after firmware cleaning)
p = 101.8 kPa
t: 22.7 C
sos = 345 m s-1

Current 7700 readings:
CH4 = 1.87 ppm (1.93 after cleaning)
RSSI = 23.8 (adjusted to 86 after cleaning)
Topped off the reservoir, which was 5/6 full.

MET looked good.

1 photos found

MB_autocam_20130613_1115.jpg ( 2013-06-13 11:15:02 ) Full size: 1920x1440
Cove