Shoreline Change Assessment in the Coastal Region of Bangladesh Delta Using Tasseled Cap Transformation from Satellite Remote Sensing Dataset

Bangladesh is a global south hotspot due to climate change and sea level rise concerns. It highly disaster-prone country in the world with active deltaic shorelines. The shorelines are quickly changing coastal accretion erosion. Erosion one of water hazards landmass sinking, relates land rises sediment load deposition on Bay Bengal continental shelf. Therefore, this study aimed explore shoreline status assessment for three years 1991, 2006, 2021 using satellite remote sensing geographical information system (GIS) approaches. Landsat 5, 7 ETM+, 8 OLI imageries were employed onshore tasseled cap transformation (TCT) classification calculations create shore boundaries, baseline assessment, accretion, erosion, point distance, near feature analysis. We converted 16,550 vertices points as ground reference (GRPs) validated those datasheet collected from Survey (SoB). observed that delta’s changed, overall lands accredited land-increasing characteristics total areas during time periods 1991 2006 825.15 km2, was 756.69 1223.94 km2 30-year period. Similarly, erosion analysis indicated results gained period 475.87 682.75 respectively. 800.72 2021. Neat 73.94 This research indicates changes shorelines, referring evidence formation through processes ‘climate change’ ‘sea rise’. projects process threatens use toward agriculture settlements regions Bangladesh.