Coastal lowland areas may be affected by various geohazards; one of them is the subsidence that, when combined with sea level rise and extreme weather events, aggravates flood risk, deteriorating the flood defence and increasing the exposure, with a potential large range of social, economic and environmental impacts. Space-based techniques can be today used for monitoring this phenomenon, in addition to traditional geodetic methods; in particular PSI (Persistent Scatterer Interferometry) data from radar satellite sensors can provide detailed information to assess with high precision the terrain motion for long periods and at different scales of investigation: local, regional, national. Within the EU FP7 framework, the ongoing SubCoast project aims to provide data on changes in land elevation for coastal lowland areas combining the information coming from PSI processing with other kind of data, providing services for stakeholders dealing with issues pertaining to hazard management, monitoring and policy development (e.g. water boards, departments of ministries, provinces, regions and municipalities throughout European coastal regions, as well as authorities at European scale such as the European Environment Agency). Three pilot studies have been devised to develop the SubCoast service, together with a fourth pilot comprised of a parallel ‘European integration’ of services.
Monitoring subsidence of coastal lowland areas by satellite radar interferometry
BITELLI, GABRIELE;
2013
Abstract
Coastal lowland areas may be affected by various geohazards; one of them is the subsidence that, when combined with sea level rise and extreme weather events, aggravates flood risk, deteriorating the flood defence and increasing the exposure, with a potential large range of social, economic and environmental impacts. Space-based techniques can be today used for monitoring this phenomenon, in addition to traditional geodetic methods; in particular PSI (Persistent Scatterer Interferometry) data from radar satellite sensors can provide detailed information to assess with high precision the terrain motion for long periods and at different scales of investigation: local, regional, national. Within the EU FP7 framework, the ongoing SubCoast project aims to provide data on changes in land elevation for coastal lowland areas combining the information coming from PSI processing with other kind of data, providing services for stakeholders dealing with issues pertaining to hazard management, monitoring and policy development (e.g. water boards, departments of ministries, provinces, regions and municipalities throughout European coastal regions, as well as authorities at European scale such as the European Environment Agency). Three pilot studies have been devised to develop the SubCoast service, together with a fourth pilot comprised of a parallel ‘European integration’ of services.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
