The nautical chart of the region has some fifties data, but massive parts with the nautical chart lack facts and the location hasn't been adequately mapped. The inadequate high-quality of bathymetry provides a superior risk of grounding. This job will provide modern bathymetry facts for updating NOAA’s nautical charting products https://hydrographic-survey-in-ba19345.ka-blogs.com/85796536/hydrographic-survey-in-bangladesh-no-further-a-mystery