UAVSAR RPI Zip Products

The UAVSAR products have been zipped using an extension called Zip64. Most new Zip decompression software
supports the Zip64 extension. However, some operating systems, such as Mac OS X, Windows XP and older, and
Red Hat Enterprise Linux 5 and older, are bundled with Zip decompression software that does not support the
Zip64 extension. For these systems, please use a newer, third-party Zip utility.

  For Windows we recommend using 7zip: http://www.7-zip.org/

  For Mac OS X we recommend using Keka. Free download: http://www.kekaosx.com/en/
  The tool can also be purchased through the Mac App Store

  For Linux distributions without bundled support for Zip64 we recommend using unzip 6.0 from
  Info-Zip: http://www.info-zip.org/UnZip.html


*amp.zip contains:
	.amp1 and .amp2 - Calibrated multi-looked amplitude products, one file per repeat track,
                    floating point format 4 bytes per pixel, little endian.
	.ann - Text annotation file(s) with metadata

*amp_grd.zip contains:
	.amp1.grd and .amp2.grd - Calibrated multi-looked amplitude products, one file per repeat track,
                            projected to the ground, floating point format 4 bytes per pixel, little endian.
  .hgt.grd  - The DEM that the imagery was projected to, in the same geographic coordinates as the ground
              projected files.  Floating point (4 bytes per pixel), little endian, ground elevation in meters.
  .ann - Text annotation file(s) with metadata

*ann.zip contains:
  .ann - Text annotation file(s) with metadata

*int.zip contains:
  .int - Interferogram product, one file per pair of repeat tracks, complex floating point format 8 bytes
         per pixel, little endian. 
  .cor - Interferometric correlation product, one file per pair of repeat tracks, floating point format
         4 bytes per pixel, little endian. 
  .unw - Unwrapped interferometric phase product, one file per pair of repeat tracks, floating point format
         4 bytes per pixel, little endian. 
  .ann - Text annotation file(s) with metadata

*int_grd.zip contains:
  .int.grd - Interferogram product, one file per pair of repeat tracks,  projected to the ground, complex
             floating point format 8 bytes per pixel, little endian.
  .hgt.grd - The DEM that the imagery was projected to, in the same geographic coordinates as the ground
             projected files.  Floating point (4 bytes per pixel), little endian, ground elevation in meters.
  .cor.grd - Interferometric correlation product, one file per pair of repeat tracks, projected to the ground,
             floating point format 4 bytes per pixel, little endian. 
  .unw.grd - Unwrapped interferometric phase product, one file per pair of repeat tracks, projected to the
             ground, floating point format 4 bytes per pixel, little endian.
  .ann - Text annotation file(s) with metadata

*kmz.zip contains:
	*.kmz - These files allow you to view a representation of their corresponding file type in Google Earth or
          similar software.
	
*hgt_grd_tiff.zip contains:
	hgt.grd.tiff - geotiff(s) of the height file, one for each polarization

Contact us at:
Alaska Satellite Facility
User Support
www.asf.alaska.edu (questions, requests, problems)
uso@asf.alaska.edu
1-907-474-6166 (M-F, 8 AM - 5 PM AKST)