Sea floor image maps showing topography, sun-illuminated topography, backscatter intensity, ruggedness, slope, and the distribution of boulder ridges and bedrock outcrops in the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts
Series_Name: Scientific Investigations Map
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
The slope analysis of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts was performed using the slope tool in the Spatial Analyst extension in ArcGIS 8.3. The slope tool calculates the maximum rate of change in elevation over a pixel and its eight neighbors for a surface. The slope calculations were carried out for the bathymetric grids of the seafloor of this region.
The slope analysis provides an interpretation of the seabed features in the highly variable geomorphology of the Stellwagen Bank National Marine Sanctuary region. The seabed geometry is variable due to its glacial origin and is important to the region's wide range of habitats and high biodiversity.
Currentness_Reference: publication date
Maintenance_and_Update_Frequency: As needed
Theme_Keyword: Geographic Information Systems
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: Woods Hole Science Center
Theme_Keyword: topographic data
Theme_Keyword: sea floor topography
Theme_Keyword: sea floor features
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans and estuaries
Place_Keyword: Stellwagen Bank National Marine Sanctuary
Place_Keyword: Shallow EEZ
Place_Keyword: Gulf of Maine
Place_Keyword: Atlantic Ocean
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