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Extended Special Sensor Microwave Imager (SSM/I) Temperature Data Record (TDR) in netCDF

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: April 12, 2026 at 09:15 PM | Dataset Last Updated: January 14, 2009 at 12:00 AM
The Special Sensor Microwave Imager (SSM/I) is a seven-channel linearly polarized passive microwave radiometer that operates at frequencies of 19.36 (vertically and horizontally polarized), 22.235 (vertically polarized), 37.0 (vertically and horizontally polarized), and 85.5 GHz (vertically and horizontally polarized). The instrument was carried aboard Defense Meteorological Satellite Program (DMSP) satellites F8, F10, F11, F12, F13, and F15. The Temperature Data Records (TDRs) from SSM/I contain calibrated and earth-located data prior to the (irreversible) antenna pattern correction process. These SSM/I TDRs in network Common Data Format (netCDF) have embedded temperature and geolocation flags as well as a climatology flag that calculates deviations from a climatological norm for each radiance footprint or z-score. The original radiance and geolocation data are not changed. Variable orbital files from the originating TDR dataset have been aggregated into 3-hourly files for ease of use.

Resources

4 resources available

  • NCEI Dataset Landing Page

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  • NOAA CLASS: Defense Meteorological Satellite Program data

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  • Global Change Master Directory (GCMD) Keywords

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  • SSM/I and SSMIS Monitoring and Documentation

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