Interferometric Processing of Envisat-1/Asar Image Mode and Alternating Polarisation Mode for Application in Land Cover and Crop Mapping

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Scientific paper

The paper describes the progress and the preliminary results of the "interferometric part" of the project entitled "Synergetic use of ASAR and SPOT data for land cover mapping and crop monitoring" carried out in the framework of ESA's ENVISAT AO Projects (ID:783). The main data sources for this research are ENVISAT / ASAR detected products (both Image Mode and Alternating Polarization Mode - Geocoded). The acquisition dates and imaging parameters were programmed regarding ASAR flight schedule and instrument availability. Some of the images were demanded in two options: as geocoded detected products and as single look complex data. Long time interval between the acquisitions (temporal interferometric decorrelation) and unpredictable baselines at the moment of image ordering made the data set not optimal for interferometric processing. The interferometric set is undergoing the processing using BEST, DORIS and EV_InSAR Atlantis software packages. Two pairs of ASA_IMS images were processed to coherence maps but the ASA_APS data is still under processing - testing several processing options and variants.

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