In order to face desertification and sand encroachment of inter dunes depressions, as well as to protect soils in the area of Gouré (Southeast Niger) where it is possible to have food plantations, it is essential to localize the origin and drift of sands. This paper shows that radar satellite remote sensing and interferometry offers the opportunity to gather all the required information. Digital Elevation Models (DEM) generated by interferometry on ERS 1-2 SAR images (a tandem pair acquired on April 25 and 26 1996) helped to collect information on relief and provided an aeolian model, while giving some insight into the spatial distribution of sand formations. Interpreting the interferometric coherent image by means of a color composite allowed detecting and locating sand movements in the areas under study. This project mainly highlights the contribution of SAR interferometry in the study of sand movements by developing added-value products. Interpretations were validated using high-resolution satellite data (SPOT 5, IKONOS, and QUICKBIRD) and field observations made during a campaign in Niger in March 2004. The same procedure was also applied in Mauritania using two tandem pairs (2–3 November 1995 and 7–8 December 1995) and in Southern Morocco (18–19 May 1996) in order to identify active dunes in these regions. These observations will be taken into account when analyzing ENVISAT-ASAR data.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Bibliography
Bodart C., 2004. Etude de l'ensablement dans la région de Gouré (sud-est du Niger): processus et apport de la télédétection, Master Dissertation, Faculté des Sciences, Université de Liège
Derauw D., 1999. Phasimétrie par Radar à Synthèse d'Ouverture; théorie et applications, Ph.D. Dissertation, Faculté des Sciences, Université de Liège
Gassani J., 2004. Apport de la télédétection à l'analyse et à la gestion des risques naturels sur la zone du lac d'Aleg (Brakna, Mauritanie), Master Dissertation, Faculté des Sciences, Université de Liège
Ozer P., 2000. Les lithométéores en région sahélienne, in GEO-ECO-TROP, n.24, 1–4
Ozer A., Legat A., Schyns J.-C., Petit S., Salmon M., Goossens R., De Dapper M., Ost L., 2002. Etude par télédétection de l'ensablement dans la province de Ouarzazate, Maroc, Project report, Liège
Ozer P., Bodart C., Tychon B., 2005. Analyse climatique de la région de Gouré, Niger oriental: récentes modifications et impacts environnementaux, Cybergeo, n.308
Reynolds J.F., Stafford Smith D.M., 2002. The Dahlem desertification paradigm: a new approach to an old problem, in Global desertification: do human cause deserts? Eds. J.F. Reynolds and M. Stafford Smith. Dalhem University Press, Berlin, Germany, pp. 1–21
Author information
Authors and Affiliations
Corresponding authors
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer Science + Business Media B.V
About this paper
Cite this paper
Bodart, C., Gassani, J., Salmon, M., Ozer, A. (2009). Contribution Of SAR Interferometry (From Ers1/2) In The Study Of Aeolian Transport Processes: The Cases Of Niger, Mauritania And Morocco. In: Marini, A., Talbi, M. (eds) Desertification and Risk Analysis Using High and Medium Resolution Satellite Data. NATO Science for Peace and Security Series C: Environmental Security. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-8937-4_11
Download citation
DOI: https://doi.org/10.1007/978-1-4020-8937-4_11
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-8936-7
Online ISBN: 978-1-4020-8937-4
eBook Packages: Earth and Environmental ScienceEarth and Environmental Science (R0)