Detection of recent terrain subsidence on Lolland using persistent scatterer interferometry (PSI) processing of satellite radar scanning data. Analysis of the persistent scatterer interferometry data from satellite radar measurements of the area Lolland with focus on the vulnerable south coast of Lolland, a contribution to the EU project SubCoast

The EU project SubCoast started in the spring 2010 as a medium scale integration research project under the 7^th Framework Programme, Theme 9 – Space. SubCoast is a collaborative project aiming at monitoring subsidence motions for the risk assess-ment of ground displacement hazard by the application of satellite radar scanning data. The activity is based on the concept developed by Terrafirma project under the Global Monitoring Environment System (GMES) Service Element applying the remote sensing technique of Persistent Scatterer Interferometry (PSI), which is able to map millimetric ground motion phenomena over large areas from space. It is the aim of the service to be distributed throughout Europe via the national geological surveys and institutions (Pedersen et al. 2011).

SubCoast makes full use of Persistant Scatterer-InSAR data to map and monitor sub-sidence in lowland areas facing the sea. Three pilot areas are selected for the demon-stration of downstream service. These pilots are the Rhine-Meuse-Delta, the southern Emilia Romagna and the Baltic Sea area (Fig. 1).