Morphological Dynamics of the Brahmaputra-Jamuna River

accretion active anabranches analysis anastomosing average Bahadurabad Bangladesh bank erosion bankline bars Brahmaputra River Brahmaputra-Jamuna River braid belt braiding indices braiding intensity Bridge calculated changes channel char age char elevation classes classification considered consistent continue Cumulative dates define degree of braiding deposition described determined developed discharge distributaries Distribution divided downstream EGIS eight elevation maps entire erosion floodplain flow frequency function Ganges growth historical hyperbolic identified increased island-chars islands Jamuna land cover left bank length less lower m/yr major maximum mean meandering measure method migration Morphological Dynamics movement narrow nodal northing observed occurred pattern percent period persistent planform points present processes Project rapid Reach relationship relatively represent retreat right bank sand satellite images sediment segments selected shown in Figure Sirajganj spatial step sub-reaches surface Survey Table total sinuosity trends upstream values water level width