Year: 2025
Type: article
Abstract: An investigation of morphometric parameter for the Umtung River basin, situated in Meghalaya, India, employing advanced GIS and remotely sensed data. Various morphometric parameters were quantified, including basin area (224.91 km²), length (24.32 km), perimeter (147.04 km), and drainage density (1.34 km/km²). With 255 streams overall, the research showed a clearly defined stream order system up to the fifth order. Key findings indicate that the basin exhibits low stream frequency (1.13 stream/km²) and a bifurcation ratio (Rb) averaging 4.03, suggesting a complex, interconnected hydrological system with significant tributary contributions. The sinuosity index (SI) of 1.32 indicates a moderately sinuous channel morphology. An extended basin shape that is advantageous for flood management is suggested by a low form factor (0.38) and elongation ratio (0.39). With a ruggedness number (Rn) of 1.18, a relief ratio (Rr) of 35.85, and a basin relief of 872 m, relief metrics show notable topographical diversity driven by tectonic activity and differential erosion. Hypsometric analysis indicates a mature landscape characterized by concave slopes, underscoring the erosion-dominated landforms formed over geological time.
Source: Current World Environment
DOI: 10.12944/cwe.20.1.36
Author: Jonestar Lyngdoh Nonglait
Institution: North Eastern Hill University
Language: English
Subfield: Environmental Engineering
Field: Environmental Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4410413956