Data Set ID:

SMEX04 Regional Soil Moisture Data: Arizona, Version 1

Notice to Data Users: The documentation for this data set was provided solely by the Principal Investigator(s) and was not further developed, thoroughly reviewed, or edited by NSIDC. Thus, support for this data set may be limited.

This data set combines data for several parameters measured as part of the Soil Moisture Experiment 2004 (SMEX04). Field measurements were obtained from 2 August through 26 August 2004 with a variety sensors, such as probes and pyrometers, within the regional study area of Arizona, USA. The parameters include gravimetric soil moisture, volumetric soil moisture, soil and surface temperature, and bulk density. Summary files containing field averages are also provided for simplicity. The total volume of this data set is approximately 1 MB. Data are provided in ASCII text files and are available via FTP.

These data were collected as part of a validation study for the Advanced Microwave Scanning Radiometer - Earth Observing System (AMSR-E). AMSR-E is a mission instrument launched aboard NASA's Aqua Satellite on 04 May 2002. AMSR-E validation studies linked to SMEX are designed to evaluate the accuracy of AMSR-E soil moisture data. Specific validation objectives include assessing and refining soil moisture algorithm performance; verifying soil moisture estimation accuracy; investigating the effects of vegetation, surface temperature, topography, and soil texture on soil moisture accuracy; and determining the regions that are useful for AMSR-E soil moisture measurements.

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Geographic Coverage

Data Set Tabs

Temporal Coverage:
  • 2004-08-03 to 2004-08-26
Temporal Resolution:
1 day
Spatial Coverage:
  • N: 32.1, S: 31.4, E: -109.7, W: -110.3

Spatial Resolution:
Not Specified
  • Soils > Electrical Conductivity
  • Soils > Hydraulic Conductivity
  • Land Temperature > Land Surface Temperature
  • Precipitation > Precipitation Amount
  • Soils > Soil Bulk Density
  • Soils > Soil Moisture/Water Content
  • Soils > Soil Salinity/Soil Sodicity
  • Soils > Soil Temperature
  • Soils > Thermal Conductivity
Data Format(s):
  • ASCII Text (.txt)
Data Contributor(s): Thomas Jackson, Michael Cosh, Jay Famiglietti, Rajat Bindlish

We kindly request that you cite the use of this data set in a publication using the following citation. For more information, see Use and Copyright.

Jackson, T., M. Cosh, J. Famiglietti, and R. Bindlish. 2009. SMEX04 Regional Soil Moisture Data: Arizona, Version 1. [indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center.

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Contact Address:
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Province or State: CO
Postal Code: 80309-0449
Country: USA