Morphological Dynamics of the Jamuna River in Kazipur Subdistrict

Abstract

This study identifies and evaluates the morphologically changing trend and process–response mechanisms of Jamuna River. The study considers the bank erosion, bank-line shifting, rate of erosion, accretion, sedimentation, course changing directions, changes in river width, fluvial landform dynamics, and floodplain features. The lower Brahmaputra–Jamuna River (named Jamuna River) at Kazipur subdistrict, Sirajganj district in Bangladesh are the study area. Multispectral Landsat satellite imageries of dry seasons were used for time series analyses of time periods (1972–2016) to interpret the chronological changes of morphology. The outcomes obtained from the analyse, support the historical westward channel shifting of the river, alluvial material properties, explicate fluvial processes, discharge anabranch instability, erosion, and morphological responses.