Field Notes

Sherman Island: 2014-09-25 09:30:00 (DOY 268)
Author: Cove Sturtevant
Others: Dennis, Sara

Summary: All loggernet connections erased, made new ones. Downloaded Met. Regular field work. Wasp nest in Met box. Swapped IRGA.

Sherman
2014-09-25

We arrived around 09:30 PDT. It had rained fairly heavily the previous several hours and was down to a few sprinkles when we arrived. There is a hefty grass layer in patches, with only a few green pepperweed plants among the golden field. The mosquitoes were out in force.

When we arrived at the tower, the computer was running fine but all the Loggenet connections had been erased. I set up new connections for the flux and Met, and downloaded all the Met data from the logger since there were no daily files from the last week. Sara did veg height, spectral, and well depth. Dennis did moisture point, and then he and I swapped the IRGA for a freshly calibrated one (removed sn 0042, installed sn 0418).

There is a big wasp nest in the Met box. Bring spray next time.

LGR readings: 1.92 ppm, 09:30, 21.6 C, 138.9 Torr (adjusted to 142 Torr), 14.7 us, 10 Hz

7500 readings after swap:
CO2: 16.9 mmol m-3
H2O: 720 mmol m-3
P = 101.7 kPa
T = 18.4 C
Diag: 248
Sos: 343.0 m s-1

Met looked good.
Finally some water in the well.

Veg Height (cm): Tape measure from ground to top of plant
45, 10, 30, 25, 28, 54, 22, 75, 30, 10, 30, 26, 50, 30, 15, 60, 58, 15, 30, 23, avg = 33.3, stdev = 17.92

0 photos found

7 sets found

No data found for SI_mp.
11 SI_met graphs found