Using GIS for verification of bathymetric data from Long Island sound

Accurate depiction of the topography of the seafloor in coastal areas is needed for modeling of ecosystems and processes, and also as a framework for analyzing and displaying information used in management decisions. Often, errors must be corrected before acquired digital data bases can be used. To create an acceptable data set, two corrected versions of a Long Island Sound data base were compared with each other and with contours produced prior to the compilation of the digital data base.