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.

On the use of COSMO/SkyMed data and Weather Models for interferometric DEM generation / Nitti, D. O.; Bovenga, F.; Nutricato, R.; Intini, F.; Chiaradia, Maria Teresa. - In: EUROPEAN JOURNAL OF REMOTE SENSING. - ISSN 2279-7254. - ELETTRONICO. - 46:1(2013), pp. 250-271. [10.5721/EuJRS20134614]

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

CHIARADIA, Maria Teresa
2013-01-01

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.
2013
On the use of COSMO/SkyMed data and Weather Models for interferometric DEM generation / Nitti, D. O.; Bovenga, F.; Nutricato, R.; Intini, F.; Chiaradia, Maria Teresa. - In: EUROPEAN JOURNAL OF REMOTE SENSING. - ISSN 2279-7254. - ELETTRONICO. - 46:1(2013), pp. 250-271. [10.5721/EuJRS20134614]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/1456
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