“Substrate” represents the character and composition of the surface and near surface of the sea floor in subtidal or intertidal areas, as defined in the Substrate Component of CMECS or in similar classification systems.
- National Seafloor Sediment (usSEABED)
- GLORIA National Seafloor Geology
- Ocean Sediment Thickness Contours, NOAA, 2013
- Physiographic Habitat, ATSML, 2011
- Seafloor Induration Data Quality
- Surficial Sediment Classification
- West Coast Surficial Geologic Habitats