The paper describes the results of Persistent Scatterers Interferometry (PSI) study of Sambia peninsula. The idea of this work was to verify the hypothesis whether any terrain surface deformation that occur in Sambia area, could be interpreted as related to tectonic processes. Moreover, if any movements are detected what is their relationship to the 21 September 2004 earthquake? To answer these questions SAR (Synthetic Aperture Radar) data from European satellites ERS-1 and ERS-2 acquired from 1992 to 2001 were processed with interferometric techniques to archive independent data about terrain surface deformation. The obtained results - 4 sets of PS (Persistent Scatterers) points with calculated movement velocities (mm/yr) according to linear model were compared with published results of terrestrial measurements. The analysis of PS results confirms the occurrence of terrain deformations of tectonic origin of few mm/yr. The distribution of deformation velocities suggest its relationship to the recent activity occurring along two E-W trending seismoactive sub-zones located along Pregola river valley and possibly in the northern coast of Sambia Peninsula., Zbigniew Perski and Marek Mróz., and Obsahuje bibliografii
This paper presents preliminary results of the application of Persistent Scatterers Interferometry (PSI) supported with detailed field landslide mapping. The research was focused on the areas located near the towns Rabka Zdroj and Jordanow located in southern-central Poland where detailed landslide mapping campaigns were preformed in the summer of 2009. According to the field experience the average spatial density of landslide occurrence in both areas is up to 3 landslides/sq km. The application of various Synthetic Aperture Radar (SAR) interferometry techniques on the above-mentioned areas was very difficult due to the very rough topography, vegetation and forest cover, and the long season with the snow cover. Following previous successful studies on other rural areas, PSI technique was therefore applied. Field work has been carried out within the frame of a national project launched in 2008 aimed to create a detailed database of all landslides in Poland. The areas where landslide problems are extremely important are the Polish Carpathians. As in previous experiments on a sparse urbanized area we noticed that it is still possible to successfully detect a number of persistent scatterers but, the interpretation of the associated deformation is difficult. However, based on cartographic data collected during the field mapping campaign it is possible to significantly improve analysis and interpretation of PSI results., Zbigniew Perski, Tomasz Wojciechowski and Andrzej Borkowski., and Obsahuje bibliografii