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Field Notes

<--2013-12-19 14:00:00 | 2014-01-23 14:00:00-->
Other sites visited today: Sherman Island | Mayberry | Twitchell Rice | West Pond | East End

Twitchell Alfalfa: 2014-01-10 14:50:00 (DOY 10)
Author: Cove Sturtevant
Others: Joe, Dennis

Summary: Alfalfa not growing. Resealed 7700 reservoir filter with silicone tape. Still need to replace LED sensor.

Twitchell Alfalfa
2014-01-10

We arrived about 14:50 PST. It was sunny and warm with a mild breeze. The alfalfa is not growing.

We downloaded data, cleaned the flux instruments, and resealed the 7700 reservoir filter with silicone tape.

7500 readings:
CO2 = 400 ppm (384 after cleaning)
H2O = 414 mmol m-3 (600 after cleaning)
SS = 75.3% (76.9% after cleaning)
T = 19.9 C
p = 102.1 kPa
sos = 344.5 m s-1

7700 readings:
CH4: 2.6 ppm (2.0 ppm after cleaning)
RSSI: 2% (84% after cleaning)
Reservoir was empty - refilled.

Cleaned radiation instruments. Rad measurements good except for LED sensor which we still need to replace.

MET looked good. No water in the well.

0 photos found

Graphs display:
7 sets found

Can't check TA_met
11 TA_met graphs found

Alfalfa Temperatures

Alfalfa Soil Heat Flux

Alfalfa Soil Moisture

Alfalfa Soil Temperatures Set A

Alfalfa Soil Temperatures Set B

Alfalfa Soil Temperatures Set C

NDVI Narrow Band Radiation

Soil CO2 Flux

Relative Humidity and BattV

SRS NDVI and PRI

PRI Narrow Band Channels

Can't check TA_rad
3 TA_rad graphs found

Alfalfa Radiation

Alfalfa LED NDVI Sensor

Alfalfa PAR

Can't check TA_flux
5 TA_flux graphs found

Alfalfa Sonic Wind

Alfalfa CO2 and H2O

Alfalfa Methane

Alfalfa Pressure

Alfalfa Flux Data Counts

Can't check TA_soilco2
7 TA_soilco2 graphs found

Set A Soil CO2

Set B Soil CO2

Soil CO2 Soil Moisture

Forced Diffusion CO2

Alfalfa Forerunner Soil CO2

Alfalfa Forerunner Temperatures

Alfalfa Forerunner Probe RH

No data found for TA_arable.
1 TA_cam graphs found

GCC

Can't check TATWBABCSB_cam

 
 

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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.