20221206 13560400 1.0 TRUE High-resolution Bathymetry Location of completed mapping surveys with a very high sounding density (1 sounding per meter squared or greater). Mapping surveys with very high sounding densities were most commonly acquired with newer technologies (i.e. Light Detection and Ranging-LIDAR, multibeam echosounders, interferometric sidescan, etc.), and are commonly used to develop high-resolution seamless digital elevation models. NOAA/NOS/National Centers for Coastal Ocean Science