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.
|Autori interni:||CHIARADIA, Maria Teresa|
|Titolo:||On the use of COSMO/SkyMed data and Weather Models for interferometric DEM generation|
|Rivista:||EUROPEAN JOURNAL OF REMOTE SENSING|
|Data di pubblicazione:||2013|
|Digital Object Identifier (DOI):||10.5721/EuJRS20134614|
|Appare nelle tipologie:||1.1 Articolo in rivista|