Abstract
In the present study morphometric analysis of Arkavathi watershed is based on remote sensing and geographic information systems. The morphometric parameters are calculated with Carto sat DEM using Arc GIS 10.3 extension and Arc Hydrology tool in order to characterize it quantitatively. The current study involved determining the linear, aerial, and relief dimensions of the eight sub-watersheds for soil and water planning and management of the watershed. The watershed characterizes to have a dendritic pattern of drainage which has a medium stream frequency and moderate drainage density. Circularity ratio and form factor values indicate that sub watersheds are more or less elongated. The Length of the overland flow has a high value with gentle slopes and long flow paths. Understanding the procedures and methods of various morphometric factors can thus be used to prioritize watersheds for management, rainwater collection, and conservation planning. Keywords: Morphometric Analysis; Carto SATDEM; Remote Sensing; GIS
Highlights
The entire area that provides runoff to and retains part or all of the stream flow of the main stream and its tributaries is referred to as a watershed(Prabhakaran & Jawahar Raj, 2018)
The analysis shows that the sub watersheds are more or less elongated
The length of the overland flow of the whole watershed is 0.51 km which means the Lg has a high value with gentle slopes and long flow paths
Summary
The entire area that provides runoff to and retains part or all of the stream flow of the main stream and its tributaries is referred to as a watershed(Prabhakaran & Jawahar Raj, 2018). The climate, geology, geomorphology, and relief elements of a basin are often highlighted during drainage network delineation and parameter analysis (Sharma et al, 2016). Understanding the impact of drainage morphometry on landscapes and their characteristics requires a detailed morphometric analysis of a watershed (Chandrashekar et al, 2015). The morphometric analysis of a river basin provides the first hand information to understand the geomorphology and watershed characteristics. The channel network uses morphometric analysis to understand the drainage basin’s geo-hydrological behavior and expresses the catchment’s current climate, geology, geomorphology, structural, and other factors. ‘Many workers are aware of the relationship between
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