Calculation of area, mapping and vulnerability assessment of a geomorphosite from GPS survey and high resolution Google Earth satellite image: a study in Mama Bhagne Pahar, Dubrajpur C. D. block, Birbhum district, West Bengal

• Published in: Spatial information research (Online) 2019, 27(5), 110, pp.521-528
• Main Authors: Datta, Krishanu, Sarkar, Somnath
• Format: Article
• Language: English
• Subjects: Database Management; Earth and Environmental Science; Geographical Information Systems/Cartography; Geography; Remote Sensing/Photogrammetry; 공학일반
• ISSN: 2366-3286; 2366-3294
• DOI: 10.1007/s41324-019-00249-1

Geomorphosites are the geomorphological landforms that have scientific, cultural, aesthetic and socio-economic values due to human perception. Mama Bhagne Pahar is one of the ancient geomorphosites in West Bengal which has specific and unique geomorphic characteristics than its surrounding area. Now a days, Global Positioning System (GPS) has become a standard surveying technique due to its accuracy and effectiveness. In the present study, perimeter and area of Mama Bhagne Pahar has been calculated from the data collected from GPS survey. Here, principle of Pythagorean theorem has been applied to calculate the perimeter of Mama Bhagne Pahar and calculation of area has been done by applying Coordinate method. Finally, vulnerability of the study area has been assessed using both qualitative and quantitative approaches. In this respect, a map showing encroachment of Mama Bhagne Pahar by human settlements has been prepared by using data collected from GPS survey coupled with high resolution Google Earth satellite image with the help of Arc GIS software.