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Radar Interferometry with Public Domain Tools

Bert Kampes(1) and Zbigniew Perski(2)

(1) DLR, Munchner Strasse 20, 82234 Wessling, Germany
(2) University of Silesia, 41-200 Sosnowiec, Bedzinska 60, Poland

Abstract

The development of public-domain software in the scientific community can stimulate a fast and free dissemination of ideas. Here we present latest contributions and state-of-the art public-domain radar interferometry software to create interferometric products and to analyze and visualize these results. We present the feasibility of the doris radar interferometric software of Delft University to create ENVISAT interferometric products such as DEMs and deformation maps. A stepwise description of the creation of an ENVISAT DEM of the Las Vegas area is presented, using besides doris the ENVISAT reader libraries (ESA BEST toolbox), the statistical cost phase unwrapper software SNAPHU (Stanford University), the Generic Mapping Tools (University of Hawaii), and the PROJ.4 package (USGS). Finally, GRASS software has been used to drape a LandSAT image on top of the computed DEM in order to show the analysis and visualization capabilities of this free GIS package. These packages are also described briefly in this paper. Both the advantages as well as the drawbacks of the mentioned tools are discussed.

It is the intention of this paper to demonstrate how a larger scientific community can benefit from freely available tools, and which contributions need to be sollicited for.

 

Workshop presentation

Full paper

Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry