Ground deformation
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Three types of products are made available for each orbit portion processed (see <a href="https://formater.pages.in2p3.fr/flatsim/" target="_blank"> detailed description </a> ) - "INTERFEROGRAM": this brings together the differential interferograms, wound and unwound, in radar or terrain geometry, filtered or not, at different resolutions, as well as the atmospheric correction maps used and spatial coherence for each interferogram. - "TIMESERIES": this includes maps of movement in time series and average speed, according to the satellite line of sight (LOS), and quality indices of time series processing. - "AUXILIARYDATA": this directory contains maps indicating the LOS vector, the DTM in radar geometry, at different resolutions, the radar-field geometry transcoding tables, and temporal coherence, as well as a set of figures and parameter files specific to the processing of the time series.
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This collection includes radar images acquired by the sensor TerraSAR-X (monostatic) over Merapi volcano (Indonésie) in the framework of the projects DLR « Study of dome growth and summit topographic changes at andesitic strato-volcanoes» (OTHER6947) and « Tracking of dome growth at Merapi volcano, Indonesia » (XTIGEOL7375) . The data format is SSC (Single Look Slant Range Complex). The acquisition mode is stripMap (SM) for two ascending track A20 and A96 and one descending track D134.
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This collection includes radar images acquired by the sensor TerraSAR-X (monostatic) over Merapi volcano (Indonésie) in the framework of the project DLR (GEO1598) « Study of andesitic strato-volcanoes topographic changes and deformation through high-resolution SAR imagery ». The data format is SSC (Single Look Slant Range Complex). There are two acquisition modes: - mode StripMap (SM) for ascending track A20 and descending track D134. - mode SpotLight (SL) for ascending track A96 and descending track D58.
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This collection includes radar images acquired by the sensor PAZ (monostatic) over Merapi volcano (Indonésie) in the framework of the project (AO-003-022) «Characterization of erupted volumes and ground deformation signals over Indonesian active volcanoes ». The data format is SSC (Single Look Slant Range Complex) with the acquisition mode High-resolution SpotLight (HS) for the descending tracks D020 and D111.
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This project focuses on the study of the deformations associated with the Ozark aquifer (south of the Mississippi basin) subjected to strong variations in groundwater level, and in neighboring regions where significant seismicity is observed, at strong seasonal component (New Madrid), or linked to wastewater injections (Oklahoma). The objective is to better understand the geodesic signature of the hydrological cycle. Three types of products are made available for each orbit portion processed (see <a href="https://formater.pages.in2p3.fr/flatsim/" target="_blank"> detailed description </a> ) - "INTERFEROGRAM": this brings together the differential interferograms, wound and unwound, in radar or terrain geometry, filtered or not, at different resolutions, as well as the atmospheric correction maps used and spatial coherence for each interferogram. - "TIMESERIES": this includes maps of movement in time series and average speed, according to the satellite line of sight (LOS), and quality indices of time series processing. - "AUXILIARYDATA": this directory contains maps indicating the LOS vector, the DTM in radar geometry, at different resolutions, the radar-field geometry transcoding tables, and temporal coherence, as well as a set of figures and parameter files specific to the processing of the time series.
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This collection includes radar images acquired by the TerraSAR-X / TanDEM-X constellation over Montagne Pelée (Martinique). Images are in SSC format (Single Look Slant Range Complex). Acquisition mode is either SPT (Spotlight) or SM (Stripmap). Tracks are either o104 (ascending track) or o020 (descending track).