Share Email Print

Proceedings Paper

Synergy of Cassini SAR and altimeter acquisitions for the retrieval of dune field characteristics on Titan
Author(s): Valerio Poggiali; Marco Mastrogiuseppe; Mattia Callegari; Riccardo Martufi; Roberto Seu; Domenico Casarano; Luca Pasolli; Claudia Notarnicola
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

This work focuses on the retrieval of Titan’s dune field characteristics addressing different radar modes. The main purpose of the proposed work is to exploit a possible synergy between SAR and altimeter acquisitions modes to provide information about dune field. Cassini has performed 86 Titan flybys in which several observations of dune fields have been collected in altimetry mode. There are several cases in which SAR and altimeter have been acquired over same areas covered by dune fields, such as during T28 (SAR) and T30 (altimeter) flybys. Altimetry together with SAR data have been used to derive the rms slopes of dunes (large scale) over Fensal area, this information has been employed to calculate SAR incidence angle with respect to dunes. We extracted backscattering coefficients of bright and dark areas detected in the analyzed SAR image in order to evaluate the angular response of scattering. Through the Geometric Optics model we retrieve roughness values (small scale rms slope) for both dune bright and dark areas.

Paper Details

Date Published: 21 November 2012
PDF: 8 pages
Proc. SPIE 8536, SAR Image Analysis, Modeling, and Techniques XII, 853608 (21 November 2012); doi: 10.1117/12.978185
Show Author Affiliations
Valerio Poggiali, Univ. degli Studi di Roma La Sapienza (Italy)
Marco Mastrogiuseppe, Univ. degli Studi di Roma La Sapienza (Italy)
Mattia Callegari, EURAC Research (Italy)
Riccardo Martufi, Univ. degli Studi di Roma La Sapienza (Italy)
Roberto Seu, Univ. degli Studi di Roma La Sapienza (Italy)
Domenico Casarano, CNR-IRPI (Italy)
Luca Pasolli, EURAC Research (Italy)
Claudia Notarnicola, EURAC Research (Italy)

Published in SPIE Proceedings Vol. 8536:
SAR Image Analysis, Modeling, and Techniques XII
Claudia Notarnicola; Simonetta Paloscia; Nazzareno Pierdicca, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?