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TitleGuidelines for the Selection of RADARSAT Beam Modes for Geological Mapping
AuthorSinghroy, V; Saint-Jean, R
SourceInternational Symposium, Geomatics in the Era of RADARSAT (GER'97), Ottawa, Canada, May 25-30; 1997 p. 10
Alt SeriesEarth Sciences Sector, Contribution Series 20042350
AbstractRADARSAT has 35 different beam and incidence angle positions with spatial resolution varying from 10-100 m. In order to maximize its use for geological and geomorphological mapping, it is necessary to evaluate the various beam modes and report on their suitability.

The study areas were selected to represent different terrain types and surfaces in Canada. The terrain types represent low, moderate and high relief. These surfaces are typical of rugged, forested, mountainous terrains; glaciated, forested Precambrian shield terrains; and partly vegetated, flat to rolling prairie landscapes.

Our results have shown that selected RADARSAT viewing geometry is significant for the delineation of geological structures, lithological units, landforms and terrain types. In mountainous terrains, incidence angles varying from 40-59 degrees, are suitable for structural and geomorphic mapping. Small incidence angles, varying from 20-31 degrees, are suitable for the Precambrian shield terrains. A wide range of incidence angles, varying from 25 to 45 degrees, is suitable for the flat and rolling prairies.


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