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U.S. Geological Survey Open-File Report 2008-1288

Prepared in cooperation with the Office of Naval Research (ONR)

Geophysical Data Collected off the South Shore of Martha's Vineyard, Massachusetts

By J.F. Denny, W.W. Danforth, D.S. Foster, and C.R. Sherwood

Right-click to OFR2008-1288

Abstract

The U.S. Geological Survey Woods Hole Science Center conducted a nearshore geophysical survey offshore of the southern coast of Martha's Vineyard, in the vicinity of the Martha's Vineyard Coastal Observatory in 2007. This mapping program was part of a larger research effort supporting the Office of Naval Research Ripples Directed-Research Initiative studies at Martha's Vineyard Coastal Observatory designed to improve our understanding of coastal sediment-transport processes. The survey was conducted aboard the Megan T. Miller August 9-13, 2007. The study area covers 35 square kilometers from about 0.2 kilometers to 5 kilometers offshore of the south shore of Martha's Vineyard, and ranges in depth from ~6 to 24 meters. The geophysical mapping utilized the following suite of high-resolution instrumentation to map the surficial sediment distribution, bathymetry, and sub-surface geology: a dual-frequency 100/500 kilohertz sidescan-sonar system, 234 kilohertz interferometric sonar, and 500 hertz -12 kilohertz chirp subbottom profiler. These geophysical data will be used to provide initial conditions for wave and circulation modeling within the study area.

First posted January 2010

For additional information contact:
Jane Denny
U.S. Geological Survey
Coastal and Marine Geology Program
Woods Hole Science Center
384 Woods Hole Road
Woods Hole, MA 02543
(508)457-2311

http://woodshole.er.usgs.gov/

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Suggested citation:

Denny, J.F., Danforth, W.W., Foster, D.S., and Sherwood, C.R., 2009, Geophysical data collected off the south shore of Martha's Vineyard, Massachusetts: U.S. Geological Survey Open-File Report 2008-1288, (Also available at http://pubs.usgs.gov/of/2008/1288/.)



Contents

Abstract

Introduction

Data Acquisition and Processing Overview

Field Program

Swath Bathymetry

Sidescan Sonar

Chirp Seismic Reflection

Supplemental Data: Sediment Samples

Geographic Information System Data Catalog

Data Access

Raster and Vector Data Description

Data Preview

Acknowledgments

References Cited



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