Spacelab data: A new contribution for structural interpretations of remotely sensed data on geology |
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| Authors: | Annick Blusson |
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| Institution: | (1) Laboratoire de Géologie Dynamique Interne, Université de Paris XI, Orsay, France;(2) Centre Scientifique IBM France, Paris, France |
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| Abstract: | This study deals with the comparison between Landsat MSS usual data, extensively used in the past, and Spacelab new photographies for geological application. Both data have been processed but the best results were obtained by interpreting original data. Classical image processing techniques were applied but they did not help much apart from geometrical correction which is essential for Landsat MSS images. Geological and structural interpretations were conducted for both types of data and compared. The results show that, even if Landsat MSS images provide a good approach for geological mapping, Spacelab photos allow more accurate and detailed interpretations. This is mostly due to the 20 meters resolution of the photos (80 meters for Landsat), and also to the potentiality of stereoscopic view (not immediate with Landsat). Spacelab data seem to be today the best document a geologist can use to produce geologic and structural maps. |
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