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Defense Meteorological Satellite Program (DMSP) Film

The United States Air Force Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS) is a polar orbiting meteorological sensor with two spectral bands (visible and thermal infrared) capable of acquiring global coverage on a daily basis at .27 km spatial resolution. Until 1992, there was no digital archive for DMSP-OLS data. Air Force meteorologists did their analysis using visible and thermal band film strips. The National Snow and Ice Data Center maintained an archive for OLS film from 1972-1992 through a cooperative institute with NOAA. In 1992, a digital archive for the OLS data was established at the NOAA National Geophysical Data Center (NGDC). In 1996, NGDC had the film archive shipped to the Federal Records Center at the Denver Federal Center due to storage limitations.

Cite this dataset when used as a source.

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    Distribution Formats
      Distributor DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
      Point of Contact DMSP Data Manager
      DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
      (303) 497-3053
      ngdc.dmsp@noaa.gov
      Documentation links not available.
      Originator
      • DOD/USAF/SMC > Space and Missile Systems Center, U.S. Air Force, U.S. Department of Defense
      Publisher
        Publisher information not available.
      Date(s)
      • publication: unknown
      Dataset Progress Status Complete
      Data Update Frequency: Not planned
      Purpose: The film is slowly decaying and the data are no longer readily accessible. Quantitative use of the data has always been limited due to the difficulties in converting to a digital format. Access to the data has been extremely limited.
      Use Limitations
      • Not distributed
      Time Period: 1972-01-01  to  1992-01-01
      Spatial Bounding Box Coordinates:
      N: 90
      S: -90
      E: 180
      W: -180
      Spatial Coverage Map:
      Themes
      • Earth Science > Atmosphere > Clouds
      • Earth Science > Biosphere > Ecological Dynamics > Fire Occurrence
      • Earth Science > Human Dimensions > Environmental Impacts
      • Earth Science > Spectral/Engineering > Infrared Wavelengths > Thermal Infrared
      • Earth Science > Spectral/Engineering > Visible Wavelengths
      • DMSP
      • Film
      • Nighttime Lights
      • OLS
      • WDC/STP, BOULDER > World Data Center for Solar-Terrestrial Physics, Boulder
      • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
      Use Constraints
      • Use Constraints: none
      Access Constraints
      • Access Constraints: In House Only
      Fees Fee information not available.
      Source Datasets
      • Defense Meteorological Satellite Program (DMSP) Film
        • Description of Source: Source Contribution: Film Source Type: Film
        • Temporal extent used:  1999-01-01  to  present
      Lineage Statement Lineage statement not available.
      Processor
      • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
      Processing Steps
      • The OLS film strips are scanned at or near 600 dpi (584 dpi for the Howtek scanner) on a high quality scanner with 8 bit quantitization (0-255). The film is illuminated from the opposite side of the scan head. The scanning is done on intact strips of film, up to 100 inches. Film longer than 100 inches may be cut and individually labeled prior to scanning. For expanded swath film the two strips of film will be separated, then labeled and scanned individually. TIFF files are converted to JPEG2000 (J2K) 8 bit images, file type jp2, with lossless compression. Once a box has cleared QC, the resulting jp2 images are written to a primary and backup LTO tape, into directories named based on box numbers (e.g. 007/400).
      • The OLS film strips should be scanned at or near 600 dpi on a high quality scanner with 8 bit quantitization (0-255). The film should be illuminated from the opposite side of the scan head. The scanning will be done on strips of film that fit on the scanner bed. Film longer than the scanner bed may be cut and individually labeled prior to scanning. For expanded swath film the two strips of film will be separated, then labeled and scanned individually.TIFF files are converted to MrSid file type sid, with lossy compression. Once a box has cleared QC, the resulting sid images are written to a primary and backup LTO tape, into directories named based on box numbers (e.g. 007/306). TIFF files are converted to JPEG2000 (J2K) 8 bit images, file type jp2, with lossless compression. Once a box has cleared QC, the resulting jp2 images are written to a primary and backup CD, into directories named based on box numbers (e.g. 007/400).
      • MrSid files were decompressed into TIFF and recompressed into JPEG200 with a lossless compression.
      • Mission Start Date

      Metadata Last Modified: 2011-11-09

      For questions about the information on this page, please email: ngdc.dmsp@noaa.gov