Page 1 Alain Arnaud, CEO Contribution to GEOSS Satellite InSAR – PSI for ground displacement mapping Alain ARNAUD, CEO
Page 2 InSAR motion mapping basics and current projects - 3 cm 3 cm Travel phase between ground and sensor gives mmtric distance Radar satellites Difference between two measurements indicates ground movement over time First measurement Second measurement (afterwards) In terferometric S ynthetic A perture R adar Superimposition of waves to detect differences High resolution radar system = = PanGEO Results Ground movement time series InSAR ground motion data utilised in a multiude of geo-hazard focused projects Ground movement rate maps
Page 3 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 Wide area map initiative of Terrafirma Process large land-masses as one dataset – one dataset ….. many applications
Page 4 Wide area map initiative of Terrafirma SPACE SEGMENT SENTINEL 1 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 InSAR to Geo Hazards 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 To allow continental scale and future worldwide ground motion dataset NEW CONCEPT and NEW ALGORITHMS for a NEW PRODUCT Process large land-masses as one dataset – one dataset ….. many applications
Page 5 Wide area map for survey & ongoing local studies with VHR SAR Wide area ground motion data – strain data for EPOS and GEM etc Volcano activity monitoring: inflation/deflation cycle Mining induced subsidence Abandoned mine re-watering uplift Karst Geology – sink hole formation Dike stability Subsidence monitoring of flood prone areas Mine subsidence Karst Geology Volcanics Tectonics Landslides Flooding InSAR Benefits for Disasters: GeoHazards mapping Many applications can be served from one InSAR ground motion dataset