Share Email Print
cover

Proceedings Paper

Surface soil roughness estimation from the synergistic use of the active microwave ERS Wind Scatterometer and ERS/SAR data
Author(s): Mehrez Zribi; S. Le Hegarat-Mascle; Christine Guerin; Beatrice Marticorena; M. Kardous
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

This paper discusses the potential of radar signal to characterize the bare surface roughness in arid or semi-arid regions. Two different scales have been considered with two microwave sensors: high resolution ERS/SAR and low resolution ERS Wind Scatterometer instruments. Ground truth measurements were acquired over different arid sites in the South of Tunisia. An empirical approach is proposed to derive the surface roughness from SAR measurements. In this approach, the surface roughness is characterized by a parameter called Zs. Then, a good correlation between SAR and WSC data is demonstrated. Using these two sensors, we are able to derive the backscattering signal versus incidence angle, in the cases of big sand dunes, rocky relief and others. An empirical model is then proposed to retrieve the sand dune percentage within the different cells of the WSC.

Paper Details

Date Published: 5 February 2004
PDF: 9 pages
Proc. SPIE 5238, Image and Signal Processing for Remote Sensing IX, (5 February 2004); doi: 10.1117/12.512070
Show Author Affiliations
Mehrez Zribi, Ctr. d'Etude des Environnements Terrestre et Planetaires (France)
S. Le Hegarat-Mascle, Ctr. d'Etude des Environnements Terrestre et Planetaires (France)
Christine Guerin, Ctr. d'Etude des Environnements Terrestre et Planetaires (France)
Beatrice Marticorena, Univs. de Paris VII et XII (France)
M. Kardous, Institut des Regions Arides (Tunisia)


Published in SPIE Proceedings Vol. 5238:
Image and Signal Processing for Remote Sensing IX
Lorenzo Bruzzone, Editor(s)

© SPIE. Terms of Use
Back to Top