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DATAVIEWER

DATAVIEWER

Name


      DATAVIEWER

Purpose



      The purpose of this routine is to provide an application for viewing
      passive microwave image files found at NSIDC.

Author



      David W. Fanning, Ph.D
      National Snow and Ice Data Center (NSIDC)
      NSIDC/CIRES University of Colorado
      Boulder, CO 80309
      E-Mail: fanning@nsidc.org

Category



      Data Visualization

Syntax



      IDL> DataViewer, files

Arguments



      files: The definition of "files" is fairly broad. This can be the name of one or more
                of the image files DataViewer can read (see below), an actual image variable,
                or it can be the name of a directory containing image files that DataViewer can
                read, in which case DataViewer reads all the image files in the directory. This
                is an optional argument.

Data Files



  Currently the DataViewer program reads the following NSIDC image data files.
  nsidc-0001: DMSP-SSM Daily Polar Gridded Brightness Temperatures
              http://nsidc.org/data/nsidc-0001.html
  nsidc-0032: DMSP SSM/I Pathfinder Daily EASE-Grid Brightness Temperatures
              http://nsidc.org/data/nsidc-0032.html
  nsidc-0046: Northern Hemisphere EASE-Grid Weekly Snow Cover and Sea Ice Extent
              http://nsidc.org/data/nsidc-0046.html
  nsidc-0051: Sea Ice Concentrations from SMMR and SSM/I platforms
              http://nsidc.org/data/nsidc-0051.html
  nsidc-0071: Nimbus-7 SMMR Pathfinder Daily EASE-Grid Brightness Temperatures
              http://nsidc.org/data/nsidc-0071.html
  nsidc-0079: Bootstrap Sea Ice Concentrations from Nimbus-7 SMMR and DMST SSM/I
              http://nsidc.org/data/nsidc-0079.html
  nsidc-0080: Near Real Time SMSP SSM/I Gridded Brightness Temperatures
              http://nsidc.org/data/nsidc-0080.html
  nsidc-0081: Near Real Time SMSP SSM/I Daily Polar Gridded Sea Ice Concentrations
              http://nsidc.org/data/nsidc-0081.html
  nsidc-0301: AMSR-E/Aqua Daily EASE-Grid Brightness Temperatures
              http://nsidc.org/data/nsidc-0301.html
  nsidc-0302: AMSR-E/Aqua Daily Global Quarter-Degree Gridded Brightness Temperatures
              http://nsidc.org/data/nsidc-0302.html
  nsidc-0342: Near Real Time SSM/I and SSMIS Daily Gridded Brightness Temperatures
              http://nsidc.org/data/nsidc-0342.html
  nsidc-ae_si25: AMSR-E Daily 25 km Gridded Brightness Temperature and Sea Ice Concentration
              http://nsidc.org/data/ae_si25.html
  Additionally, the program reads BMP, GIF, JPEG, PNG, PPM, SRF, TIFF, DICOM, or
  JPEG2000 image files .
  The DataViewer no longer supports the following NSIDC data set:
  nsidc-0116: Sea Ice Motion Vectors for Daily, Monthly, and Yearly Gridded Products
              http://nsidc.org/data/nsidc-0116.html

Modification History



      Written by: David W. Fanning and version 1.0 released to the public 11 November 2008.
      Extensively modified to read more passive microware data products from NSIDS. Changes
          include better ways of handling map projection information. 17 June 2010. DWF.
      Fixed problem caused by loading a configuration file before images were selected,
          and fixed a problem with Coyote Library routine cgLoadCT and the way it looks
          for the Brewer color table file. 28 June 2010. DWF.



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