Western Massachusetts Bay

A portion of western Massachusetts Bay, from Stellwagen Basin west to approximately the 30 m isobath, was mapped using a Simrad EM-1000 multibeam echo sounder. The data are divided in 3 quadrangles. For quadrangles 1 and 2, paper maps of topography, shaded relief topography, and shaded relief topography colored by backscatter intensity are available. Quadrangle 3 is not completed. The digital data for all three quadrangles are published in USGS Data Series 99. The Massachusetts Water Resources Authority (MWRA) ocean outfall is located in Quadrangle 2.

Cooperators: National Oceanic and Atmospheric Administration (NOAA), University of New Brunswick (UNB), Canadian Hydrographic Service (CHS).

Survey area for Massachusetts Bay. Click on figure for larger image.

Maps and Data available:

Quadrangle 1 (scale 1:25,000)

Seafloor topography	Shaded-relief topography	Shaded-relief topography colored by backscatter intensity
Map I-2731-A	Map I-2731-B	Map I-2731-C

Quadrangle 2 (scale 1:25,000)

Seafloor topography	Shaded-relief topography	Shaded-relief topography colored by backscatter intensity
Map I-2732-A	Map I-2732-B	Map I-2732-C

GIS data for western Massachusetts Bay maps

Butman, B., Valentine, P.C., Middleton, T.J., and Danforth, W.W., 2007, A GIS Library of multibeam data for Massachusetts Bay and the Stellwagen Bank National Marine Sanctuary, Offshore of Boston, Massachusetts. U.S. Geological Survey Data Series 99. 1 DVD-ROM. Also online at http://pubs.usgs.gov/ds/99/

List of publications and citations from Western Massachusetts Bay mapping

For more information:

Bradford Butman
U.S. Geological Survey
Woods Hole Coastal and Marine Science Center
384 Woods Hole Rd.
Woods Hole, MA 02543-1598
bbutman@usgs.gov