An Automatic Integrated Tool for Deriving Morphometric Parameters

In the present scenario, geoinformatics is an important factor in study of morphometry for designing, and development of hydraulic structures. In the present study, an effort has been made to develop an automatic integrated tool using ArcGIS (Proprietary) software, which can be used to derive the morphometric parameters with minimum human errors and strain on the workstations used for analysis. The primary inputs to run this tool are Digital elevation Model (DEM), watershed outlet shape file and minimum number of streams for defining a stream which are user defined. All the important data required for morphometric analysis after the processing of the input data will be obtained from the developed tool as output. In total 13 parameters will be created as output from this model which are slope, aspect, hill shade, drainage density, Compound topographic Index, Shape factor, form factor, elongation ratio, circulatory ratio, wandering ratio, lemniscate, length area relationship and fitness ratio. This method generates a reliable database of morphometric parameters and is very useful in the field of hydrology, and watershed analysis.