Field Notes

Sherman Island: 2014-06-26 09:10:00 (DOY 177)
Author: Cove Sturtevant
Others: Sara, Kathleen

Summary: Regular field work. Swapped 7500 IRGA.

Sherman
2014-06-26

We arrived around 09:10 PDT. It was sunny and warm. I attended to the tower while Sara did a veg height transect and moisture point. Kathleen did LAI2000 and well depth. We left soil respiration measurements for Patty, Joe and Madeline who arrived just after us to start the Picarro N2O campaign.

I downloaded data and swapped the 7500 IRGA for a freshly calibrated one (removed sn 0976, installed sn 0042). Checked the clock on the autocam which Joe said seemed an hour off. It was reading correctly in standard time.

LGR readings: 1.85 ppm, 09:13, 22.1 C, 137.4 Torr (adjusted to 146.0 Torr), 14.73 us, 10 Hz

7500 readings after swap:
CO2: 16.3 mmol m-3
H2O: 630 mmol m-3
P = 101.6 kPa
T = 23.9 C
Diag: 248

Soil CO2 looked good.
Met looked good.
Cleaned rad.

Veg Height (cm): Tape measure from ground to top of plant - pepperweed mostly dried out.Grass dry.
80, 85, 20, 10, 50, 75, 82, 8, 88, 55, 81, 78, 72, 54, 6, 45, 50, 75, 44, 80, avg = 56.9, stdev = 27.46

1 photos found

SI_autocam_20140627_2015.jpg ( 2014-06-27 20:15:02 ) Full size: 1920x1440
Nice sunset