- Sediment data from the USGS publication, usSEABED: Atlantic Coast Offshore Surficial Sediment Data Release (USGS Data Series 118) were augmented by seafloor sediment data from DMF lobster surveys, DMF trawl surveys, EPA/EMAP grab samples, MWRA grab samples and SPI data, National Coastal Assessment grab samples, and USGS Open File Reports. The data points were converted to Thiessen polygons to create a surficial sediment map, resulting in the following four categories: muddy, sandy, gravelly, and hard bottom. Note that the distribution of points in the aggregate dataset is not uniform -- this causes polygons to differ in size and shape throughout Massachusetts waters.
- Massachusetts, Gulf of Maine, Massachusetts Bay, Cape Cod Bay, Nantucket Sound, Vineyard Sound, Buzzards Bay, Massachusetts, Gulf of Maine, Ocean > Atlantic Ocean > North Atlantic Ocean, Ocean > Atlantic Ocean > North Atlantic Ocean > Gulf Of Maine, and Continent > North America > United States Of America > Massachusetts
- oceans, 014, geoscientificInformation, 008, Oceans > Marine Sediments > Sedimentary Textures, Oceans > Marine Sediments > Sediment Composition, marine spatial planning, MSP, ocean management, coastal zone management, ecosystem-based management, and EBM
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