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Field Notes

<--2013-07-16 09:00:00 | 2013-07-31 09:15:00-->
Other sites visited today: Twitchell Rice | West Pond | DWR Corn | Twitchell Alfalfa | Mayberry

Sherman Island: 2013-07-26 14:10:00 (DOY 207)
Author: Cove Sturtevant
Others: Laurie, Yanel

Summary: Field senescing. Regular field work. Data download.

Sherman
2013-07-26

We arrived about 14:10 PDT. It was sunny, windy, and warm (27 C). There was a lot of water under the bridge on the way in but the field was dry. The plants are mostly tan with a bit of dull green and dry flowers. I measured the general vegetation height at about 50 cm.

I checked the tower and downloaded data while Yanel did spectral and Laurie did soil CO2 flux and moisture point. I did well depth at the end.

No ant traffic in the computer box.

LGR readings: 1.85 ppm, 14:21, 27.8 C, 130 Torr (adjusted to 146 Torr), 12.6 us, 10 Hz

7500 readings:
CO2: 15.6 mmol m-3 (15.8 after cleaning)
H2O: 790 mmol m-3 (750 after cleaning)
diag: 248
p: 101.5 kPa
t: 29.6 C

MET looked good.
Soil CO2 looked good except for Ref_ST_1 which was reading 53.3 C. This may have been due to the sensor being on, because by the time we left it was reading 46. I will check the data.

Cleaned radiation instruments.

I checked the sns and MUX locations for the soil CO2 probes in the east profile at the surface (sn G0150036, MUX channel 4) and deep (sn G0150037, MUX channel 6) locations.

0 photos found

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.