Data Set ID:

SMEX04 Precipitation Network 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 contains data from in situ precipitation measurements collected at the Walnut Gulch Micronet during the Soil Moisture Experiment 2004 (SMEX04) in Arizona, USA. Accumulated hourly precipitation was measured using electronic weighing bucket rain gauges and one tipping bucket rain gage from 20 June 2004 to 24 September 2004. The total volume of this data set is approximately 167 kilobytes in five ASCII text files. The data 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:
  • 2004-06-20 to 2004-09-24
Temporal Resolution:
1 hour
Sensor(s): RAIN GAUGES
Spatial Coverage:
  • N: 31.422, S: 31.112, E: -109.718, W: -110.239

Spatial Resolution:
Not Specified
  • Precipitation > Precipitation Amount
Data Format(s):
  • ASCII Text (.txt)
Data Contributor(s): Timothy Keefer, David Goodrich, Susan Moran

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.

Keefer, T., D. Goodrich, and S. Moran. 2009. SMEX04 Precipitation Network 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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Province or State: CO
Postal Code: 80309-0449
Country: USA