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Open-File Report 2010–1178

Geophysical Data from offshore of the Gulf Islands National Seashore, Cat Island to Western Horn Island, Mississippi

By E.A. Pendleton, W.E. Baldwin, W.W. Danforth, N.T. Dewitt, A.S. Forde, D.S. Foster, K.W. Kelso, W.R. Pfeiffer, A.M. Turecek, J.G. Flocks, and D.C. Twichell

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Abstract

This report contains the geophysical and geospatial data that were collected along the western offshore side of the Gulf Islands of Mississippi on the research vessel Tommy Munro during two cruises in 2010. Geophysical data were collected by the U.S. Geological Survey in Woods Hole, Massachusetts, and St. Petersburg, Forida, in cooperation with the U.S. Army Corps of Engineers Mobile District. Bathymetric-sonar, sidescan-sonar, and Chirp seismic-reflection data were acquired with the following equipment, respectively: Systems Engineering and Assessment, Ltd., SwathPlus interferometric sonars; Klein 3000 and 3900 dual-frequency sidescan sonars; and an EdgeTech 512i Chirp sub-bottom profiling system. The long-term goals of this mapping effort are to produce high-quality, high-resolution geologic maps and interpretations that can be utilized to identify sand resources within the region, to better understand the Holocene evolution, and to anticipate future changes in this coastal system. Processed geospatial data files and the geophysical data provided in this report help attain these goals.

Posted August 8, 2011

For additional information contact:
Director
U.S. Geological Survey
Woods Hole Coastal and Marine Science Center
384 Woods Hole Road
Quissett Campus
Woods Hole, MA 02543
Telephone: (508) 548–8700

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Suggested citation:

Pendleton, E.A., Baldwin, W.E., Danforth, W.W., Dewitt, N.T., Forde, A.S., Foster, D.S., Kelso, K.W., Pfeiffer, W.R., Turecek, A.M., Flocks, J.G., and Twichell, D.C, 2011, Geophysical data from offshore of the Gulf Islands National Seashore, Cat Island to Western Horn Island, Mississippi: U.S. Geological Survey Open-File Report 2010-1178, DVD-ROM. (Also available online at http://pubs.usgs.gov/of/2010/1178/.)



Contents

Abstract

Introduction

Data Acquisition and Processing

Data Catalog

Acknowledgements

Glossary


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