<?xml version="1.0" encoding="utf-8"?><article><front><Journal-meta><journal-id journal-id-type='publisher'>CWE/1695/2025</journal-id><journal-title >Current World Environment</journal-title><issn pub-type='PPub'>0973-4929</issn><issn pub-type='ePub'>2320-8031</issn><publisher><publisher-name>4</publisher-name></publisher></Journal-meta><article-meta><article-id pub-id-type='other'>CWE--96-00</article-id><title-group><article-title>&lt;p&gt;Morphometric Analysis of Umtung River Basin using GIS and Remote Sensing&lt;/p&gt;</article-title></title-group><contrib-group><contrib contrib-type='author'><name><surname></surname><given-names></given-names></name><xref ref-type='aff' rid='aff00'><sup></sup></xref></contrib></contrib-group><aff id='aff001'><sup>1</sup><instname>North Eastern Hills University</instname>,<deptname>Department of Geography</deptname>, <instaddress>Union Christian College</instaddress>, <instcity>Umiam Khwan</instcity>, <instcountry>India</instcountry>.</aff><pub-date pub-type='ppub'><publicationDate></publicationDate></pub-date><doi>10.12944/CWE.20.1.36</doi><volume>Volume 20</volume><issue>Volume 20</issue><page>488-500</page><abstract><title>Abstract</title><p>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.</p></abstract><kwd-group><title>Keywords</title><kwd>Digital Elevation Model (DEM)</kwd><kwd> GIS</kwd><kwd> Morphometric analysis</kwd><kwd> River basin</kwd><kwd> Remote sensing</kwd></kwd-group><counts><ref-count count='' /><page-count count='' /></counts></article-meta></front></article>