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Digital Bathymetric Model (DBM)

of Florida Continental Shelf

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Composite image of the Florida Atlantic and Gulf continental shelves. Digital bathymetric data from the National Ocean Survey (NOS), National Oceanographic and Atmospheric Administration (NOAA), was reformatted so that the DBM could be imaged and color ramped in brownish topographic tints rather than traditional bluish tints for water depth. The resulting composite highlights the narrow continental shelf (about 2.5 km wide) offshore Broward County. Here, the abrupt transition from the shelf break to the Florida-Hatteras Slope occurs at a shallow depth, about 30 to 40 m, seaward of which the seafloor drops of precipitously to several hundred meters depth. The central and northern Atlantic shelves support large sand deposits in the form of ridges, sand flats, and sand waves. The wide Gulf continental shelf along the central-west coast of Florida contains many large transverse sand ridges whereas the Panhandle shelf is characterized by transverse bars, sand ridges, sand sheets, and inlet retreat paths.


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