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  • 标题:Multistage Data Evaluation for Geomorphological Mapping in Part of Doon Valley (UP) - India
  • 本地全文:下载
  • 作者:Rajiv Chopra
  • 期刊名称:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
  • 印刷版ISSN:2194-9042
  • 电子版ISSN:2194-9050
  • 出版年度:1992
  • 卷号:XXIX Part B7
  • 页码:352-351
  • 出版社:Copernicus Publications
  • 摘要:Panchromatic black and white aerial photographs on 1 :50,000 (approx.) scale in the formof false colour composites on 1:1M (film diapositives) and 1:250,000 ( print form)scale were used to evaluate their utility for geomorphological mapping in part of DoonValley. Using photo elements like tone, texture, pattern and shape, five geomorphicunits viz; denudational hills, structural hills, residual hills, piedmont plain andriver terraces were delineated and several structures e.g. folds, faults etc., aremarked. Aerial photo interpretation gives more classes because of 3-D view and higherresolution. River terraces which are very distinct in aerial photographs cannot beidentified in satellite data. The structures like small folds and lineaments are easyto mark. Visual interpretation of satellite data helps in identification of structuralhills, active flood plain, abandoned channels and extent of agricultural landuse. Thecontact between Siwalik belt and Piedmont zone are easy to pick up. Digital imageprocessing enhances the interpretation of major geological structures and lineaments
  • 关键词:Classification; Image Analysis; Image interpretation; Remote Sensing;Application; Space Imagery
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