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Federal
Hard and Soft Bottom Seafloor Substrate Maps Derived from an Unsupervised Classification of Gridded Backscatter at Select U.S. Locations in the Pacific
National Oceanic and Atmospheric Administration, Department of Commerce —
Substrate, Hard bottom vs. Soft bottom: This is a preliminary product. Cell values reflect whether the seafloor is hard bottom or soft bottom based on an unsupervised... -
Federal
Derived bathymetry from IKONOS satellite imagery of nearshore benthic habitats
National Oceanic and Atmospheric Administration, Department of Commerce —
Methods used were adapted from a "cookbook" of instructions developed by Kyle Hogref for using IKONOS imagery data to derive seafloor elevations in optically clear...