NAAS Journal

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P-ISSN: 2618-060X, E-ISSN: 2618-0618   |   NAAS: 5.20

2025, Vol. 8, Special Issue 1

Remote sensing and GIS-based morphometric analysis: a case study of the Mann river watershed


Stanzin Angmo and Kishore D Gharde

The Remote Sensing and Geographic Information System (GIS) has emerged as a highly efficient tool for collecting remotely sensed data over large areas in a periodic and systematic manner. One notable example is the globally available Digital Elevation Model (DEM), which is developed through various satellite missions. DEMs provide critical terrain elevation data that can be used to analyse and characterize watersheds of any size. This data is instrumental in estimating morphometric parameters, which play a vital role in watershed management and planning. The present study focuses on the Mann River watershed, and analyses its influence on the physical element responsible for key hydrological processes. Using a 30 m resolution CARTOSAT DEM, the drainage networks and other key morphometric features were extracted within a Geographic Information System (GIS) environment. This analysis provides valuable insights into how the shape and structure of the watershed impact water flow, erosion, and flood dynamics. Standard mathematical formulae were applied to compute parameters like linear aspects. Areal aspects and relief aspects. An analysis of these parameters gives tremendous insights into the shape of the watershed, its efficiency in drainage, and vulnerability to flooding and erosion. The results reveal that the Mann River watershed has characteristic features indicative of a dendritic drainage pattern and, therefore is subjected to moderate drainage density, which portrays this system as a well-drained one, prone to erosion and flash floods. This research holds significant implications for watershed management and planning. By understanding the morphometric behaviour of watersheds, it becomes possible to design effective conservation measures, implement flood control strategies, and plan sustainable land use and watershed development. Additionally, the study provides a framework for conducting further hydrological analyses and supports the effective management of riverine watersheds, particularly in semi-arid regions. The findings highlight that GIS-based morphometric analysis is a powerful tool for gaining insights into various characteristics of watershed while reducing time and cost, thereby enhancing the efficiency of watershed management efforts.
Pages : 453-458 | 60 Views | 23 Downloads
How to cite this article:
Stanzin Angmo, Kishore D Gharde. Remote sensing and GIS-based morphometric analysis: a case study of the Mann river watershed. Int J Res Agron 2025;8(1S):453-458. DOI: 10.33545/2618060X.2025.v8.i1Sg.2458
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