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Federal
Long Island Sound, NY/CT (M040) Bathymetric Digital Elevation Model (30 meter resolution) Derived From Source Hydrographic Survey Soundings Collected by NOAA
National Oceanic and Atmospheric Administration, Department of Commerce —
Bathymetry for Long Island Sound was derived from fifty-five surveys containing 562,596 soundings. Twenty-four older, less accurate, overlapping surveys were entirely...