Name
Title | ||
|---|---|---|
Dune Height Estimation on Titan Exploiting Pairs of Synthetic Aperture Radar Images With Different Observation Angles |
Abstract | ||
|---|---|---|
Widespread longitudinal dunes have been identified on Titan thanks to the 2.2-cm wavelength Cassini Synthetic Aperture Radar (SAR) instrument. Understanding the properties of these surface features, such as material composition and dune height, is very important for giving new clues about the Titan geology and climate. One of the major difficulties in the estimation of dune heights using SAR occurs when the material composition of the dunes is heterogeneous. In this paper, we propose a novel method for dune height estimation, which takes into account material heterogeneity, and in particular, the case in which the interdune exhibits different dielectric properties with respect to the remaining part of the dune. Paired data acquisitions with orthogonal observations are considered for separating the dielectric from the geometric effect on the backscattering coefficients in order to retrieve the slope and thus the height of the dunes. The results for a test area located in the Fensal region indicate that the slopes of the dune faces are generally lower than 5° and the heights range between 40 and 110 m. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/JSTARS.2014.2352037 | Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of |
Keywords | Field | DocType |
saturn,astronomical instruments,astronomical techniques,dielectric properties,planetary surfaces,remote sensing by radar,sand,synthetic aperture radar,cassini sar instrument,cassini synthetic aperture radar instrument,fensal region test area,sar image,titan climate,titan geology,titan longitudinal dunes,backscattering coefficients,dielectric effect,distance 40.00 m to 110.00 m,dune face slopes,dune height estimation difficulties,dune material heterogeneity,dune slope retrieval,dune surface feature properties,geometric effect,heterogeneous dune material composition,interdune dielectric properties,longitudinal dune identification,orthogonal observations,paired data acquisitions,wavelength 2.2 cm,synthetic aperture radar (sar),estimation,dielectrics,surface topography,materials,scattering,backscatter | Synthetic aperture radar,Dielectric,Backscatter,Remote sensing,Titan (rocket family),Scattering,Paired Data,Wavelength,Mathematics | Journal |
Volume | Issue | ISSN |
8 | 3 | 1939-1404 |
Citations | PageRank | References |
0 | 0.34 | 4 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| m callegari | 1 | 7 | 6.68 |
| Domenico Casarano | 2 | 2 | 2.12 |
| marco mastrogiuseppe | 3 | 1 | 2.10 |
| valerio poggiali | 4 | 1 | 1.42 |
| Claudia Notarnicola | 5 | 166 | 40.15 |