Quantitative evaluation and analysis of morphometric parameters derived from ASTER DEM using ARC Hydro tool in a GIS Environment – A study of Vaishali River Basin of Madhya Pradesh
GIS has become a key source to understand the hydrological conditions of watersheds for the last few decades. Arc Hydro tool of ArcGIS has been proven its role in the automated extraction of drainage network and morphometric analysis from DEMs. The delineation of drainage network can be done either manually from topographic sheets or derived from Digital Elevation Model (DEM) data by means of computational methods. In the present work, ASTER DEM has been incurred to extract drainage network with the aid of Arc hydro tool. The Vaishali River basin of Madhya Pradesh has been taken as the study area. This study has been done primarily based on a geo-spatial software ARC GIS in which ARC HYDRO a tool has been used extensively. The quantitative evaluation and analysis of about twenty morphometric parameters has been done based on the linear, areal and relief aspects. The analysis has revealed that the Vaishali River basin is a fifth order basin showing dendritic drainage pattern with drainage density of 0.40 per km and stream frequency of 0.08 per km2. Low drainage density indicates the basin has not been much affected by structural disturbances while drainage frequency and very coarse drainage texture specifies low relief and porous, permeable rocks beneath the ground surface. The form factor, circularity ratio and elongated ratio suggest the basin shape as elongated. The area has low to moderate relief and slopes displays moderate relief ratios. It is concluded that this technique is not only reduces time but also provides valuable results which are very helpful for watershed management studies.
Semelhante a Quantitative evaluation and analysis of morphometric parameters derived from ASTER DEM using ARC Hydro tool in a GIS Environment – A study of Vaishali River Basin of Madhya Pradesh
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Semelhante a Quantitative evaluation and analysis of morphometric parameters derived from ASTER DEM using ARC Hydro tool in a GIS Environment – A study of Vaishali River Basin of Madhya Pradesh (20)
Quantitative evaluation and analysis of morphometric parameters derived from ASTER DEM using ARC Hydro tool in a GIS Environment – A study of Vaishali River Basin of Madhya Pradesh