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Open-File Report 2012–1103

Prepared in cooperation with the National Oceanic and Atmospheric Administration and the Connecticut Department of Energy and Environmental Protection

Sea-Floor Character and Geology Off the Entrance to the Connecticut River, Northeastern Long Island Sound

By L.J. Poppe, K.Y. McMullen, S.D. Ackerman, M.R. Guberski, and D.A. Wood

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Abstract

Datasets of gridded multibeam bathymetry and sidescan-sonar backscatter, together covering approximately 29.1 square kilometers, were used to interpret character and geology of the sea floor off the entrance to the Connecticut River in northeastern Long Island Sound. Although originally collected for charting purposes during National Oceanic and Atmospheric Administration hydrographic survey H12013, these acoustic data, sidescan-sonar imagery, and the sea-floor sampling and photography stations subsequently occupied to verify the acoustic data (1) show the composition and terrain of the seabed, (2) provide information on sediment transport and benthic habitat, and (3) are part of an expanding series of studies that provide a fundamental framework for research and resource management (for example, cables, pipelines, and dredging) activities in this major east coast estuary.

Revised February 25, 2013

First posted January 22, 2013

For additional information contact:
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Suggested citation:

Poppe, L.J., McMullen, K.Y., Ackerman, S.D., Guberski, M.R., and Wood, D.A., 2013, Sea-floor character and geology off the entrance to the Connecticut River, northeastern Long Island Sound: U.S. Geological Survey Open-File Report 2012–1103 DVD-ROM. (Also available at http://pubs.usgs.gov/of/2012/1103/.)




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