Feasibility of the Sentinel-1 Multi-temporal InSAR system based on the SNAP and StaMPS: Case study from the Tatra Mts., Slovakia

Abstract

We present first full-resolution and large area Sentinel-1 multi-temporal InSAR analysis of the Tatra Mts. region within Slovakia as a case study on a feasibility of processing chain based on the Sentinels Application Platform (SNAP) and Stanford method for Persistent Scatterers (StaMPS). We utilize all Sentinel-1 data from three individual orbits, acquired from the beginning of the mission until the end of 2017. Study area was chosen to test the performance of our system over mountainous and sparsely urbanized land characteristic for strong atmospheric perturbations. Our results reveal several distinct areas of small-scale deformation phenomena, e.g. rockslides or land subsidence. InSAR displacement time series are validated via GNSS observations at the points of Slovakian permanent reference network. We conclude with the potential of proposed workflow for the future Slovakian nation-wide multi-temporal InSAR processing.