Monitoring of Ground Deformations in Bratislava Urban-Area using PSInSAR Technology
Bakon, Matus; Papco, Juraj
Department of Theoretical Geodesy, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, SLOVAKIA
The main purpose of this research is to study ground displacement characteristics and determine the causes of subsidence and/or uplift in urban-area of Bratislava, capital city of Slovakia. This project represents first such academic initiative conducted from Slovakia country. The study area is situated in geologically interesting and tectonically active area. The current state of relief and spatial distribution of individual geological forms is the result for vertical tectonic movements, e.g. subsiding parts of Vienna Basin and Danubian Basin or uplifting mountains. The work aims to perform a series of differential interferograms and PSInSAR technique, covering the target area with 45 Envisat ASAR images from ascending track No. 229 and descending track No. 265 from years 2002 - 2010. Processing involves two different software solutions for obtaining differential interferograms and performing PS methodology: SARscape v4.4 and StaMPS v3.2.1. The final analysis of results shown that investigated urban-area of Bratislava is stable with deformations rates within few milimeters around noise level.