Data Set ID:

SMEX04 QuikSCAT/SeaWinds Backscatter Data: Sonora, Version 1

This data set includes data collected over the Soil Moisture Experiment 2004 (SMEX04) area of Sonora, Mexico during 1 June to 30 September 2004. The SeaWinds scatterometer on NASA's Quick Scatterometer (QuikSCAT) satellite collected backscatter data. Data are provided in Brigham Young University - Microwave Earth Remote Sensing (BYU-MERS) Scatterometer Image Reconstruction (SIR) images and Graphics Interchange Format (GIF) images, 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:
  • 2004-06-01 to 2004-09-30
Temporal Resolution:
Not specified
Sensor(s): SEAWINDS
Spatial Coverage:
  • N: 35, S: 20, E: -105, W: -115

Spatial Resolution:
Not Specified
  • Microwave
  • Radar > Radar Backscatter
Data Format(s):
  • GIF
  • SIR
Data Contributor(s): David Long

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.

Long, D. G. 2008. SMEX04 QuikSCAT/SeaWinds Backscatter Data: Sonora, Version 1. [indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center.

Questions? Please contact:

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Fax: 1 303 492-2468
Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA