The nautical chart of your area consists of some fifties information, but big parts in the nautical chart absence facts and the area has never been adequately mapped. The bad good quality of bathymetry offers a significant danger of grounding. This project will present modern day bathymetry information for updating https://hydrographicsurveyindhaka41334.dsiblogger.com/65389674/a-secret-weapon-for-hydrographic-survey