6-m resolution image of shaded relief multibeam bathymetry in western Massachusetts Bay map Quadrangle 3, pseudo-colored by backscatter intensity (Q3_BACKPC.TIF)

• Main Authors: Bradford Butman, William W. Danforth
• Format: Dataset
• Language: unknown
• Published: USGS Science Data Catalog 2007
• Subjects: backscatter intensity; pseudo-colored backscatter intensity; multibeam; image; GeoTIFF; 6-m resolution; sea floor; sea floor mapping; USGS Map I-2732; Simrad; EM 1000; Frederick G. Creed; Woods Hole Science Center; WHSC; Coastal and Marine Geology Program; CMGP; U.S. Geological Survey; USGS; oceans; imageryBaseMapsEarthCover; Massachusetts Bay; western Massachusetts Bay; western Massachusetts Bay map Quadrangle 3; Boston; Gloucester; Massachusetts; Stellwagen Basin; Gulf of Maine; United States; North Atlantic Ocean; Quadrangle; North Atlantic
• Online Access: https://search.dataone.org/view/ee9ac44a-42d8-45a4-b8f3-4253aa162bc3

The U.S. Geological Survey has conducted geologic mapping to characterize the sea floor offshore of Massachusetts. The mapping was carried out using a Simrad Subsea EM 1000 Multibeam Echo Sounder on the Frederick G. Creed on four cruises conducted between 1994 and 1998. The mapping was conducted in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and with support from the Canadian Hydrographic Service and the University of New Brunswick. The long-term goal of this mapping effort is to produce high-resolution geologic maps and a Geographic Information System (GIS) project that presents images and grids of bathymetry, shaded relief bathymetry, and backscatter intensity data from these surveys that will serve the needs of research, management and the public.