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Scientific literature and information products produced by Woods Hole Coastal and Marine Science Center staff

Filter Total Items: 1737

Distribution and tsunamigenic potential of submarine landslides in the Gulf of Mexico Distribution and tsunamigenic potential of submarine landslides in the Gulf of Mexico

The Gulf of Mexico (GOM) is a geologically diverse ocean basin that includes three distinct geologic provinces: a carbonate province, a salt province, and canyon to deep-sea fan province, all of which contain evidence of submarine mass movements. The threat of submarine landslides in the GOM as a generator of near-field damaging tsunamis has not been widely addressed. Submarine...
Authors
Jason D. Chaytor, David C. Twichell, Patrick Lynett, Eric L. Geist

Shaded seafloor relief, backscatter strength, and surficial geology; German Bank, Scotian Shelf, offshore Nova Scotia Shaded seafloor relief, backscatter strength, and surficial geology; German Bank, Scotian Shelf, offshore Nova Scotia

This map is part of a three-map series of German Bank, located on the Scotian Shelf off southern Nova Scotia. This map is the product of a number of surveys (1997-2003) that used a multibeam sonar system to map 5321 km2 of the seafloor. Other surveys collected geological data for scientific interpretation. This map sheet shows the seafloor topography of German Bank in shaded-relief view...
Authors
B.J. Todd, Page C. Valentine

Exploring active tectonics in the Dominican Republic Exploring active tectonics in the Dominican Republic

The devastating 12 January 2010 Haiti earthquake (M = 7.0), which killed an estimated 230,000 people and caused extensive damage to homes and buildings, drew attention to the crucial need for improved knowledge of the active tectonics of the Caribbean region. But even before this disastrous event, interest in understanding the active and complex northeastern Caribbean plate boundary had...
Authors
A Carbo-Gorosabel, D. Cordoba-Barbara, J. Martin-Davila, J. L. Granja-Bruna, Estrada P. Llanes, A. Munoz-Martin, Uri S. ten Brink

The tail of the Storegga Slide: Insights from the geochemistry and sedimentology of the Norwegian Basin deposits The tail of the Storegga Slide: Insights from the geochemistry and sedimentology of the Norwegian Basin deposits

Deposits within the floor of the Norwegian Basin were sampled to characterize the deposition from the Storegga Slide, the largest known Holocene-aged continental margin slope failure complex. A 29 to 67 cm thick veneer of variable-coloured, finely layered Holocene sediment caps a homogeneous, extremely well-sorted, poorly consolidated, very fine-grained, grey-coloured sediment section...
Authors
C. K. Paull, W. Ussler, W.S. Holbrook, T.M. Hill, H. Haflidason, W. Winters, T. Lorenson, I. Aiello, J.E. Johnson, E. Lundsten

Regional seismic stratigraphy and controls on the Quaternary evolution of the Cape Hatteras region of the Atlantic passive margin, USA Regional seismic stratigraphy and controls on the Quaternary evolution of the Cape Hatteras region of the Atlantic passive margin, USA

Seismic and core data, combined with amino acid racemization and strontium-isotope age data, enable the definition of the Quaternary stratigraphic framework and recognition of geologic controls on the development of the modern coastal system of North Carolina, U.S.A. Seven regionally continuous high amplitude reflections are defined which bound six seismic stratigraphic units consisting...
Authors
D. J. Mallinson, S.J. Culver, S.R. Riggs, E.R. Thieler, D. Foster, J. Wehmiller, K.M. Farrell, J. Pierson

The national assessment of shoreline change: A GIS compilation of vector shorelines and associated shoreline change data for the New England and Mid-Atlantic Coasts The national assessment of shoreline change: A GIS compilation of vector shorelines and associated shoreline change data for the New England and Mid-Atlantic Coasts

Sandy ocean beaches are a popular recreational destination, often surrounded by communities containing valuable real estate. Development is on the rise despite the fact that coastal infrastructure is subjected to flooding and erosion. As a result, there is an increased demand for accurate information regarding past and present shoreline changes. The U.S. Geological Survey's National...
Authors
Emily A. Himmelstoss, Meredith G. Kratzmann, Cheryl Hapke, E. Robert Thieler, Jeffrey List

The release of dissolved nutrients and metals from coastal sediments due to resuspension The release of dissolved nutrients and metals from coastal sediments due to resuspension

Coastal sediments in many regions are impacted by high levels of contaminants. Due to a combination of shallow water depths, waves, and currents, these sediments are subject to regular episodes of sediment resuspension. However, the influence of such disturbances on sediment chemistry and the release of solutes is poorly understood. The aim of this study is to quantify the release of...
Authors
Linda H. Kalnejais, William R. Martin, Michael H. Bothner

Serving ocean model data on the cloud Serving ocean model data on the cloud

The NOAA-led Integrated Ocean Observing System (IOOS) and the NSF-funded Ocean Observatories Initiative Cyberinfrastructure Project (OOI-CI) are collaborating on a prototype data delivery system for numerical model output and other gridded data using cloud computing. The strategy is to take an existing distributed system for delivering gridded data and redeploy on the cloud, making...
Authors
Michael Meisinger, Claudiu Farcas, Emilia Farcas, Charles Alexander, Matthew Arrott, Jeff de La Beaujardiere, Paul Hubbard, Roy Mendelssohn, Richard P. Signell

Standard-target calibration of an acoustic backscatter system Standard-target calibration of an acoustic backscatter system

The standard-target method used to calibrate scientific echo sounders and other scientific sonars by a single, solid elastic sphere is being adapted to acoustic backscatter (ABS) systems. Its first application, to the AQUAscat 1000, is described. The on-axis sensitivity and directional properties of transducer beams at three operating frequencies, nominally 1, 2.5, and 4 MHz, have been...
Authors
Kenneth G. Foote, Marinna A. Martini

Parametric study of the physical properties of hydrate-bearing sand, silt, and clay sediments: 1. Electromagnetic properties Parametric study of the physical properties of hydrate-bearing sand, silt, and clay sediments: 1. Electromagnetic properties

The marked decrease in bulk electrical conductivity of sediments in the presence of gas hydrates has been used to interpret borehole electrical resistivity logs and, to a lesser extent, the results of controlled source electromagnetic surveys to constrain the spatial distribution and predicted concentration of gas hydrate in natural settings. Until now, an exhaustive laboratory data set...
Authors
J.Y. Lee, J.C. Santamarina, C. Ruppel

The three scales of submarine groundwater flow and discharge across passive continental margins The three scales of submarine groundwater flow and discharge across passive continental margins

Increased study of submarine groundwater systems in recent years has provided a wealth of new data and techniques, but some ambiguity has been introduced by insufficient distinguishing of the relevant spatial scales of the phenomena studied. Submarine groundwater flow and discharge on passive continental margins can be most productively studied and discussed by distinct consideration of...
Authors
John F. Bratton
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