On the use of COSMO/SkyMed data and Weather Models for interferometric DEM generation

Abstract

This work experiments the potentialities of COSMO/SkyMed (CSK) data in providing interferometric Digital Elevation Model (DEM). We processed a stack of CSK data for measuring with meter accuracy the ground elevation on the available coherent targets, and used these values to check the accuracy of DEMs derived from 5 tandem-like CSK pairs. In order to suppress the atmospheric signal we experimented a classical spatial filtering of the differential phase as well as the use of numerical weather prediction (NWP) model RAMS. Tandem-like pairs with normal baselines higher than 300 m allows to derive DEMs fulfilling the HRTI Level 3 specifications on the relative vertical accuracy, while the use of NWP models still seems unfeasible especially for X-band.

Cite this paper

@inproceedings{Nitti2013OnTU, title={On the use of COSMO/SkyMed data and Weather Models for interferometric DEM generation}, author={Davide Oscar Nitti and Fabio Bovenga and Raffaele Nutricato and Francesca Intini and Maria Teresa Chiaradia}, year={2013} }