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International MODIS/AIRS Processing Package

 MODIS Polar2grid Reprojection Software Version 1.2 Release     28 August 2014

   Update to the IMAPP software that enables users to create:
  • High Resolution MODIS Level 1B GeoTIFF files for a selection of visible and infrared bands;
  • High Resolution MODIS True Color 24 bit GeoTIFF files.

What's new in Version 1.2?

  • A 250m resolution predefined grid definition is available that will fit data to a 250m Platte Carrée (wgs84) projection.
  • Fixed a problem with 250m MODIS file interpolations from 1km geolocation files that contained missing values.
  • Proj4 grid entries used by the polar2grid software now use latitude/longitude degrees as reference coordinates instead of radians. If you are using grids previously defined by the grid_helper.sh script, you will have to define the grids again.

The software uses standard IMAPP or NASA Archive HDF4 files as input, and allows the user a selection of projections or grids to use for the remapping. The default GeoTIFF projection is the WGS 84/Platte Carrée coordinate system. The software also allows the user to define and create grids covering a locally defined region.

The execution takes place using simple bash shell scripts, with the user specifying a directory containing the MODIS L1B files, or the files themselves.

Software, execution scripts and documentation are included with the release.

This software is also capable of creating S-NPP VIIRS instrument GeoTIFF files, and is being co-released as part of the Community Satellite Processing Package (CSPP).

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