Use of Satellite Remote Sensing and GIS for extraction of Digital Elevation Models using Open source data products and software: Case studies

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Savitri Seetal Mantripragada


Digital Elevation models have grown to become an integral part of a number of scientific applications. DEMs can be created from the ground surveys, digitizing existing hardcopy topographic maps or by remote sensing techniques. DEM’s are now predominantly created using remote sensing techniques with observing the benefits that a large spatial area can be mapped by fewer people at a lower cost. For the present paper, the Digital Elevation model analysis has been done for the area of Chimmini Dam in Echippara in Chalakudy taluk of Thrissur District of Kerala and Idamalayar Dam in Ennakkal near Bhoothathankettu in Ernakulum district of Kerala has been selected for Watershed and Network Delineation


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Mantripragada, S. S. “Use of Satellite Remote Sensing and GIS for Extraction of Digital Elevation Models Using Open Source Data Products and Software: Case Studies”. Technix International Journal for Engineering Research, vol. 9, no. 8, Aug. 2022, pp. 25-31,
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