• Sakshi Naithani
• R.C.Joshi

A morphometric analysis of Asan basin, a part of Doon Valley, has been attempted using remote sensing and GIS. Watershed boundary and drainage map were prepared using 30m Cartosat DEM and SOI toposheets. A sub-dendritic pattern was observed for the basin. Highest stream order is sixth order, for main river Asan. A drainage density of 1.79 km /km2 suggests resistant but permeable sub-surface Mean bifurcation ratio was estimated to be between 2 to 4.4 which signifies negligible control of surface by subsurface structures. An elongation ratio of 0.84 suggests an oval shape of basin. It is concluded that geospatial technologies provide a fairly reliable and speedy analysis of the basin for watershed prioritization.

Morphometry, Asan, Drainage, DEM, GIS

"Morphometric Analysis of Asan River Basin Using Geo-spatial Technique a Case study from Central Himalaya", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.100-108, July-2018, Available :http://www.jetir.org/papers/JETIR1807912.pdf

"Morphometric Analysis of Asan River Basin Using Geo-spatial Technique a Case study from Central Himalaya", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp100-108, July-2018, Available at : http://www.jetir.org/papers/JETIR1807912.pdf