Lithological discrimination of sun-facing and shadowed portions of Aravalli region

Details Lithological discrimination of sun-facing and shadowed portions of Aravalli region Lithological discrimination of sun-facing and shadowed portions of Aravalli region

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993adspr..13...91p&link_type=abstract

Advances in Space Research, Volume 13, Issue 11, p. 91-94.

Mathematics

Logic

Scientific paper

Surface illumination in the mountainous terrains is characterized differently on the sun-facing and shadowed portions of the geologic units. This causes misclassification of the litho-units using satellite remotely sensed data. In the present paper, an effort has been made to use Landsat thematic mapper data for the classification of the different litho-units of the Aravalli mountains of Rajasthan State (India) by applying supervised maximum likelihood classifier. The various litho-units of the Aravalli region have been classified considering the sun-facing and shadowed portions of each unit as different classes based on ground truth data. A geological map prepared from the digital image is found to compare closely with the published geological map.

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