Environmental, Studies; island, dynamics; shoreline, shifting; DSAS; seismic; geospatial, techniques; Bhasan, Char; Bangladesh; Environmental, assessment; Wave, action; Landsat; Migration; Groundwater, quality; Dynamic, tests; Fluvial, sediments; Historical, account; Groundwater, data; Shorelines; Coasts; Anticlines; COVID-19; Sediments; Data, analysis; Remote, sensing; Spatial, data; Shoreline, protection; Water, pollution, effects; Rehabilitation; Accommodation; Digital, imaging; Seismic, studies; Seismic, stability; Deposition; War, crimes; Floods; Soil, erosion; Satellite, imagery; Area; Water, quality; Global, positioning, systems--GPS; Refugees; Coastal, currents; Geology; Accretion; Sustainable, development; Geomorphology; Landforms; Cyclones; Longshore, currents; Groundwater; Geographic, information, systems; Landsat, satellites; Morphology; Myanmar, (Burma); Bay, of, Bengal