This delta has been considered as one of the most dynamic ones which attribute the highest sediment discharge and one of the three highest water discharges in the world. This study showed a good agreement of measured data and simplifiedĮm-pirical relationships to predict the long-term morphodynamic behavior of theīangladesh, a major part of the Bengal basin which is the world’s largest delta (Fischer et al., 2017) formed by the alluvial deposits derived from the Himalayans and tectonic interactions and transported through the major rivers i.e., the Ganges, the Brahmaputra, and the Meghna (Sarker et al., 2011 Rogers & Overeem, 2017). The channel per-sistence (40% - 100%) selected part of the study area in theĬhannel inci-dence map, indicating the rapid dynamic behavior of the river Mostly, after the construction of some river training works. However, satellite imageĪnalysis revealed that the major bankline shifting occurred from 2000 to 2010Īnd the channel shifting was observed from 2014 to 2018 along the reach, Shifted towards the left (east) bank, and the channel within the study areaĭeveloped very fast along the right (west) bank. Moreover, aĬross-section com-parison revealed that the channel near Sirajganj Hardpoint Suggested that the rate of sedimentation is higher (60% to 80%), where theĭredging alignment crosses through the existing sandbar/char. Variation at selected sections along the reach during 2012-2013. Primary data were employed in numerical models to estimate theĮrosion-sedimentation and compared outputs with the real-time cross-sectional Of dredging on river morphology us-ing erosion-sedimentation numerical modelingĪpproaches. Initiated a pilot capital dredging project in the Jamuna river in 2011-2012,Īiming to guide the flow to reduce the risk of failure of the city area and Erosion and sedimentation in the Jamuna river cause a large flowįluctuation and floods round the year. Bangladesh, has an enormous hydrological impact on the surrounding areas and
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