In order to do quantitative modeling of the output of ROI_PAC, you will probably want to load the derived products into other programs. Below are some hints and software that will help you do this.
GOOGLE EARTH Perl scripts: unw2png.pl and importIMGtoKML.pl will convert a geocoded interferogram to a Google Earth kml file and png file Download the scripts here. This code requires that you have imagemagick installed. It's free and the "convert" command line utility is fantastically useful. This code also requires mdx.
GMT Various GMT scripts are available in the Contributed software section, particularly roipac2grdfile
MATLAB Example Matlab script for loading data in a variety of formats. Available in the Contributed software section
GIS For GIS software, use .rsc file to create metadata file and perhaps rmg2mag_phs to make a single binary file from the Richard M. Goldstein (rmg) format (real*4: including .unw, .hgt, .msk and .cor): each line has twice the number of columns specified. For each line, first there is a column width of "amplitude" values, then a column's width of "phase" values.
MAKE_LOS There is a script in ROI_PAC called make_los.pl that will generate a file that gives the incidence angle (the magnitude portion of the rmg file) and satellite heading (the phase portion) for each pixel. This information is essential for use in converted modeled ground displacements in x, y, and z to the projection in the satellite LOS.
Run "make_los.pl" on the int.proc file used to process the interferogram (e.g., make_los.pl int.proc). This may require adding the full file paths to all of the directories specified in the "int.proc" file.