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Advanced Ground Displacement Monitoring Using Radar Satellite Technology

Alain Arnaud, CEO of InSARmotionmapping, introduces a pioneering approach to monitoring ground displacement via radar satellite images. This method utilizes high-resolution InSAR data to create precise ground movement rate maps, enabling the detection of subtle changes over time. By superimposing measurements, we can capture differences in ground motion with millimeter accuracy. The advanced algorithms process full image data frames rapidly and allow for the integration of multiple datasets into comprehensive motion maps. This technology supports a wide range of geo-hazard-focused projects, including landslides, tectonics, volcanic activity, and more.

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Advanced Ground Displacement Monitoring Using Radar Satellite Technology

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  1. Alain Arnaud, CEO Ground displacement monitoring using radar satellite images Alain ARNAUD, CEO

  2. InSARmotionmapping Results Second measurement (afterwards) Radar satellites First measurement Ground movement rate maps Superimposition of waves to detect differences In terferometric = S ynthetic A perture R adar High resolution radar system = Ground movement time series Difference between two measurements indicates ground movement over time Travel phase between ground and sensor gives mmtric distance 3 cm InSARgroundmotion data utilised in a multiude of geo-hazardfocusedprojects PanGEO - 3 cm

  3. Wide area map initiative of Terrafirma • Traditionally InSAR analysis of local area or of single phenomena = inefficient • Advanced algorithms to process full image data frames rapidly and allow multiple applications of data • Methodology will be applicable to Sentinel-1 data to allow rapid wide area motion maps to be produced • Method for integrating multiple track datasets into a single motion map • Resulting datasets can be freely viewed • Resulting datasets can be used for multiple applications of InSAR to Geo Hazards • To allow continental scale and future worldwide ground motion dataset Process large land-masses as one dataset – one dataset ….. many applications

  4. InSAR motion mapping applied to GeoHazards Landslides • Wide area map for survey & ongoing local studies with VHR SAR Tectonics • Wide area ground motion data – strain data for EPOS and GEM etc Volcanics • Volcano inflation Mine subsidenceKarst Geology • Mining induced subsidence • Abandoned mine re-watering uplift • Karst Geology – sink hole formation Flooding • Dike stability • Subsidence monitoring of flood prone areas Many applications can be served from one InSAR ground motion dataset

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