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| Article Name : | | | INTEGRATED USE OF LANDSAT ETM+ AND SRTM DEM TO DECIPHER LATERITES IN AREA AROUND LANJA, DISTRICT RATNAGIRI, MAHARASHTRA, INDIA. | | Author Name : | | | V. M. Dikshit | | Publisher : | | | Ashok Yakkaldevi | | Article Series No. : | | | ROR-1843 | | Article : | |  | Author Profile | | Abstract : | | | Geological studies are requiring standard methods and procedures to acquire precisely information. However, traditional methods might be difficult to use due to complex topography, thick vegetation and soil cover and mountainous region in the area under study. In this paper, we consider the application of Landsat 7 ETM+ imagery and Shuttle Radar Topographic Mission (SRTM) digital elevation model (DEM) for laterite mapping of the study area. The accuracy assessment was based on ground control points acquired by GPS and reference points digitized from Landsat imagery along segments of selected rivers.The area of investigation is Konkan Coastal Belt (KCB) characterized by the common geological features as basaltic flows and laterite cappings.The laterites were discriminated using feature extraction workflow in ENVI EX platform. Different threshold values were used to find the most probable areas of lateritic zones in the image. | | Keywords : | | |
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