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Field Notes

<--2014-11-25 15:30:00 | 2014-12-23 13:15:00-->
Other sites visited today: Sherman Island | Mayberry | Twitchell Rice | East End | West Pond

Twitchell Alfalfa: 2014-12-10 11:15:00 (DOY 344)
Author: Cove Sturtevant
Others: Sara

Summary: Sheep in field with flimsy barrier laid over soil CO2 setup. Rad boom rotated 180 degrees and not level. Data download.

Twitchell Alfalfa
2014-12-10

We arrived at about 11:15 PST. It was overcast and cold. There were sheep in the field. There was a poor barrier constructed out of some mesh material covering the soil CO2 setup. The radiation boom was also rotated inside this barrier and not level. See photo. Nothing seemed broken but some of the probes were out of place. We left the setup as is since the sheep were still in the field.

Downloaded data.

7500 readings:
CO2 = 635 ppm (460 after cleaning)
H2O = 53 mmol m-3 (330 after cleaning)
signal strength = 60% (81% after cleaning)
p = 101.3 kPa
t = 12 C
sos = 343.2 m s-1

1 photos found

view of field site
20141210TA_CrappySheepBarrier.jpg ( 2014-12-10 11:24:51 ) Full size: 1920x1434
view of field site

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.