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Quarterly Journal of Engineering Geology and Hydrogeology
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Quarterly Journal of Engineering Geology and Hydrogeology; 1979; v. 12; issue.3; p. 181-187;
DOI: 10.1144/GSL.QJEG.1979.012.03.05
© 1979 Geological Society of London

Session 5: Terrain Evaluation and Remote Sensing

An example of the value of infra-red multispectral remote sensing in mapping

Y. Patoureaux

Centre de Géologie de l'Ingénieur. Ecole Nationale Supérieure des Mines, , 60 boulevard Saint Michel, 75272 Paris, Cedex 06 (France). Groupement pour le Développement de la Télédétection Aérospatiale, , 18 avenue Edouard Belin-31055 Toulouse, Cedex ( France).

Infra-red multispectral remote sensing can supply data to supplement the information provided by aerial photographs for geological and geomorphological mapping of areas of the earth's surface.

The shades of colours obtained by combining the black and white images of the spectral bands are due partly to differences in the spectral emissivity of the surface, and partly to variations in the thermal properties of the surface materials, themselves dependent upon the nature and state of the surface.

In this paper, the author describes a case study carried out in the vicinity of Carcassonne (Aude, France) where, at several scales, the imagery obtained by aerial survey has helped to define boundaries, for example, between the alluvial terraces and the molassic formations of Lutetien, and between various types of alluvial sediments.




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