Assessment of Morphological Changes and Vulnerability of River Bank Erosion alongside the River Jamuna Using Remote Sensing (2011)

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River morphology describes the shapes of river channels and how they change over time. Channel processes reflected in river morphology are erosion, transportation and sedimentation. This study examines the morphology on the river Jamuna by using Remote Sensing (RS) and Geographic Information Systems (GIS) techniques. Vulnerability and morphological changes have been identified using 2010, 2003, 1989, 1980 and 1973 five different years Landsat Enhanced Thematic Mapper Plus (ETM+), Thematic Mapper (TM) and Multispectral Scanner (MSS) image and settlement identified using topographic maps 1947. Using eCognition/Definiens object base image classification performed for river channel mapping and ArcGIS used for accurate information engendered about river channel movement and bank erosion. The enumerated average bank erosion and siltation rates were found very high. Per year average erosion was 1235.25 km2 and siltation 29.82 km2. Maximum river movement was 35847 meters in the year of 2003 and minimum river movement was 16415 meters in the year of 2010.
Year: 2011
Language: English
In: Journal of Earth Science and Engineering, 1 (1): 29-34 p.