Field Notes

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Sherman Island: 2012-10-18 09:20:00 (DOY 292)
Author: Cove Sturtevant
Others: Joe, Sara, Laurie

Summary: Site is cow-trampled and dry. Removed ATI sonic. Tower readings look good. Took LAI, spectral, well depth measurements.

Sherman
2012-10-18

We arrived about 09:20 PDT. Weather was sunny and warm, no wind, about 18°C. The site clearly looks cow-trampled, very little dull green among the dry and brittle pepperweed. The cows have completely destroyed the fence around the power pole near the tower, and have knocked off one of the metal power boxes. It hangs to the ground with the wires still attached. Joe did his best to partially rebuild the fence and provide a modicum of protection.

Joe removed the ATI sonic. I checked the tower, pulled the CR1000 card and reloaded the 8/27 program (without the ATI data feed). Sara and Laurie did LAI, spectral, and well depth.

LGR readings: 08:32, 24.74 °C, 147.5 Torr (no adjustment necessary), 13.87 us, 10 Hz, 2.76 ppm

7500 readings:
CO2: 19.01 mmol m-3
H2O: 520 mmol m-3
P: 101.8 kPa
diag: 248

I cleared spider webs out of the sonic and 7500 paths and cleaned the 7500 window which was dusty. Also cleaned radiation sensors.

The 10Hz values looked good after removing the ATI and reloading the old program. MET and Soil CO2 looked good, the Soil CO2 Theta probes 3 & 4 are still in the lab.

Next time we need to bring sealant to reseal the hole where the ATI cable was fed into the box. Joe repacked it pretty well but more sealant would be good.

5 photos found

Geese in V formation
20121018SI_GeeseFlock.jpg ( 2012-10-18 10:17:16 ) Full size: 1920x1440
Geese in V formation

Flock of geese in a V
20121018SI_GeeseFlockZoom.jpg ( 2012-10-18 10:17:23 ) Full size: 1920x1440
Flock of geese in a V

Cows destroyed the fence around the power pole
20121018SI_PowerPole.jpg ( 2012-10-18 10:00:47 ) Full size: 1920x1440
Cows destroyed the fence around the power pole

Taking down ATI and cleaning IRGA
SI_autocam_20121018_0845.jpg ( 2012-10-18 08:45:02 ) Full size: 1920x1440
Taking down ATI and cleaning IRGA

Wasp near IRGA
SI_autocam_20121018_1215.jpg ( 2012-10-18 12:15:02 ) Full size: 1920x1440
Wasp near IRGA

Graphs display:
7 sets found

No data found for SI_mp.
11 SI_met graphs found

Explore the graph:Solar Radiation in a new window

Explore the graph:Energy in a new window

Explore the graph:Soil Temperatures Set 1 in a new window

Explore the graph:Soil Temperatures Set 2 in a new window

Explore the graph:Soil Temperatures Set 3 in a new window

Explore the graph:Soil Temperature at -16cm in a new window

Explore the graph:LED NDVI Sensor Output in a new window

Explore the graph:Solar Radiation from CNR1 in a new window

Explore the graph:Sherman Island Rain in a new window

Explore the graph:Sherman Well Level in a new window

Explore the graph:Box Temperatures in a new window

Can't check SI_mixed
2 SI_mixed graphs found

Explore the graph:Theta Probes in a new window

Explore the graph:Sherman Island Air Temperatures in a new window

4 SI_flx graphs found

Explore the graph:Sonic Wind in a new window

Explore the graph:CH4 Concentrations in a new window

Explore the graph:Sample Counts in a new window

Explore the graph:LI7500 CO2 and H2O in a new window

3 SI_soilco2 graphs found

Explore the graph:Sherman Island Vaisala Soil CO2 in a new window

Explore the graph:Soil CO2 Temperatures in a new window

Explore the graph:Soil CO2 Reference Soil Temperatures in a new window

Can't check TWSI_mixed
Can't check SIMBTWEE_met