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Field Notes

<--2012-10-04 10:00:00 | 2012-10-18 09:20:00-->
Other sites visited today: Mayberry | Twitchell Rice | West Pond | DWR Corn

Sherman Island: 2012-10-11 08:15:00 (DOY 285)
Author: Cove Sturtevant
Others: Sara, Laurie, Christina

Summary: Pepperweed looks a bit duller. Downloaded data, took soil co2 flux, moisture point, well depth. Cut wire on #4 soil co2 moisture probe.

Sherman
2012-10-11

We arrived about 08:15 PDT. Weather was mildly cloudy, windy, and a wee chilly, about 14°C. The site looked a bit less vibrant today (if pepperweed can look vibrant). Perhaps the cows have just trampled a bit more lately, but the green sprinklings looked duller to me.

I checked the tower and downloaded the data and camera pics while Sara, Laurie, and Christina did moisture point, well depth, and soil CO2 flux. No LAI or spectral today.

LGR readings: 07:15:38, 23.17 °C, 132.0 Torr (adjusted to 145.4 Torr), 13.86 us, 10 Hz, 1.88 ppm

7500 readings:
CO2: 16.17 mmol m-3
H2O: 575 mmol m-3
P: 101.2 kPa
diag: 248

I wiped down the 7500 windows.

MET and Soil CO2 looked good, except for the following:

Sara found that the #4 soil co2 moisture probe wire had been roughly snipped or chewed, and the wire pulled out of the fence. Perhaps a rat got a little carried away… She pulled the probe for repair. I also checked the wiring for the rest of the soil co2 moisture probes since Joe thinks the numbers look funny. The wiring looks good, and I also checked the wiring colors against the manual when I got home so I don’t think there is a problem here. I took photos of the connections into the multiplexor, and as soon as I figure out how to post photos I will put them up for other curious eyes. Sara mentioned she was going to play with the moisture sensors in the lab to see if she is missing anything.

5 photos found

view of field site
SI_SMwiring1.JPG ( 2012-10-11 08:47:03 ) Full size: 968x1296
view of field site

view of field site
SI_SMwiring2.JPG ( 2012-10-11 08:47:32 ) Full size: 1296x968
view of field site

view of field site
SI_SMwiring3.JPG ( 2012-10-11 08:48:02 ) Full size: 1296x968
view of field site

Birds and cows
SI_autocam_20121010_1715.jpg ( 2012-10-10 17:15:02 ) Full size: 1920x1440
Birds and cows

Cows and clouds
SI_autocam_20121011_1745.jpg ( 2012-10-11 17:45:03 ) Full size: 1920x1440
Cows and clouds

Graphs display:
7 sets found

No data found for SI_mp.
11 SI_met graphs found

Solar Radiation

Energy

Soil Temperatures Set 1

Soil Temperatures Set 2

Soil Temperatures Set 3

Soil Temperature at -16cm

LED NDVI Sensor Output

Solar Radiation from CNR1

Sherman Island Rain

Sherman Well Level

Box Temperatures

Can't check SI_mixed
2 SI_mixed graphs found

Theta Probes

Sherman Island Air Temperatures

4 SI_flx graphs found

Sonic Wind

CH4 Concentrations

Sample Counts

LI7500 CO2 and H2O

3 SI_soilco2 graphs found

Sherman Island Vaisala Soil CO2

Soil CO2 Temperatures

Soil CO2 Reference Soil Temperatures

Can't check TWSI_mixed
Can't check SIMBTWEE_met

 
 

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This material is based upon work supported by the National Science Foundation and US Department of Energy. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the supporters.