Deformation monitoring over a large area via the ESD technique with data takes on adjacent tracks

Abstract

Enhanced spatial differences (ESD) is a new processing chain for monitoring ground deformations at small scale over wide areas. Core of the processing is the spatial differencing (SD) step that performs a quick preliminary estimation of the mean deformation velocity and residual topography via spatial differences. We show the results achieved by applying the ESD algorithm to data collected over adjacent tracks for ERS and ENVISAT.