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Earthquake recurrence estimates for northern Caribbean faults from combinatorial optimization

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Woods Hole Coastal and Marine Science Center

2023 Annual Report

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Pragmatically mapping Phragmites with unoccupied aerial systems: A comparison of invasive species land cover classification using RGB and multispectral imagery

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Hydroacoustic observations reveal drivers of mixing and salinization of a karst subterranean estuary during intense precipitation

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

Featured Journal Article

Invasive Phragmites plants on the shore of a lake

Pragmatically mapping Phragmites with unoccupied aerial systems: A comparison of invasive species land cover classification using RGB and multispectral imagery

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Featured USGS Series

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Woods Hole Coastal and Marine Science Center—2023 Annual Report.  The 2023 annual report highlights accomplishments, includes a list of publications, and summarizes the work of the center and each of the science groups.

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Sound Waves

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Coastal and Marine Research News from Across the USGS

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Filter Total Items: 1737

Temporal and spatial variation in habitat characteristics of Tilefish (Lopholatilus Chamaeleonticeps) off the east coast of Florida Temporal and spatial variation in habitat characteristics of Tilefish (Lopholatilus Chamaeleonticeps) off the east coast of Florida

The tilefish, Lopholatilus chamaeleonticeps, constructs burrows in carbonate sediments off the central east coast of Florida at similar temperatures (8.6-15.4°C) and in similar sediment textures (high proportion of silts and clays) to conspecifics in the Mid-Atlantic Bight. The depths at which we observed tile fish off Florida (150-290 m), based on submersible observations and sidescan...
Authors
Kenneth W. Able, Churchill B. Grimes, Robert Jones, David C. Twichell
By
Woods Hole Coastal and Marine Science Center

Carbonate-periplatform sedimentation by density flows: A mechanism for rapid off-bank and vertical transport of shallow-water fines Carbonate-periplatform sedimentation by density flows: A mechanism for rapid off-bank and vertical transport of shallow-water fines

Existing theories of off-bank sediment transport cannot account for rapid rates of sedimentation observed in Bahama bank and Florida shelf periplatform environments. Analysis of the physical processes operating during winter cold fronts suggests that accelerated off-bank transport of shallow-water mud may be achieved by sinking off-bank flows of sediment-charged hyperpycnal (super-dense)...
Authors
P.A. Wilson, Harry H. Roberts
By
Woods Hole Coastal and Marine Science Center

Velocity measurements and changes in position of Thwaites Glacier/iceberg tongue from aerial photography, Landsat images and NOAA AVHRR data Velocity measurements and changes in position of Thwaites Glacier/iceberg tongue from aerial photography, Landsat images and NOAA AVHRR data

The Thwaites Glacier/iceberg tongue complex has been a significant feature of the Antarctic coastline for at least 50 years. In 1986, major changes began to occur in this area. Fast ice melted and several icebergs calved from the base of the iceberg tongue and the terminus of Thwaites Glacier. The iceberg tongue rotated to an east-west orientation and drifted westward. Between 1986 and...
Authors
Jane G. Ferrigno, Baerbel K. Lucchitta, A. L. Mullinsallison, Robert J. Allen, W. G. Gould
By
Natural Hazards Mission Area, Woods Hole Coastal and Marine Science Center, Astrogeology Science Center

Publications of the Branch of Atlantic Marine Geology for Calendar Year 1992 Publications of the Branch of Atlantic Marine Geology for Calendar Year 1992

This U.S. Geological Survey Open-File Report contains a listing of publications authored or co-authored by members of the Branch of Atlantic Marine Geology and published in calendar year 1992. The Branch conducts a broad geologic and geophysical research and mapping program, primarily along the U.S. Atlantic Margin, in the Great Lakes, the Gulf of Mexico, the Caribbean and polar regions...
Authors
Margaret C. Mons-Wengler, Robert N. Oldale
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Subsurface temperatures and geothermal gradients on the north slope of Alaska Subsurface temperatures and geothermal gradients on the north slope of Alaska

On the North Slope of Alaska, geothermal gradient data are available from high-resolution, equilibrated well-bore surveys and from estimates based on well-log identification of the base of ice-bearing permafrost. A total of 46 North Slope wells, considered to be in or near thermal equilibrium, have been surveyed with high-resolution temperatures devices and geothermal gradients can be...
Authors
Timothy S. Collett, Kenneth J. Bird, Leslie B. Magoon
By
Energy Resources Program, Woods Hole Coastal and Marine Science Center

Modeling the tides of Massachusetts and Cape Cod Bays Modeling the tides of Massachusetts and Cape Cod Bays

A time-dependent, three-dimensional numerical modeling study of the tides of Massachusetts and Cape Code Bays, motivated by construction of a new sewage treatment plant and ocean outfall for the city of Boston, has been undertaken by the authors. The numerical model being used is a hybrid version of the Blumberg and Mellor ECOM3D model, modified to include a semi-implicit time-stepping...
Authors
H. L. Jenter, R. P. Signell, A.F. Blumberg
By
Woods Hole Coastal and Marine Science Center

Method of estimating the amount of in situ gas hydrates in deep marine sediments Method of estimating the amount of in situ gas hydrates in deep marine sediments

The bulk volume of gas hydrates in marine sediments can be estimated by measuring interval velocities and amplitude blanking of hydrated zones from true amplitude processed multichannel seismic reflection data. In general, neither velocity nor amplitude information is adequate to independently estimate hydrate concentration. A method is proposed that uses amplitude blanking calibrated by...
Authors
Myung W. Lee, D. R. Hutchinson, William P. Dillon, J. J. Miller, Warren F. Agena, B.A. Swift
By
Woods Hole Coastal and Marine Science Center

A procedure for partitioning bulk sediments into distinct grain-size fractions for geochemical analysis A procedure for partitioning bulk sediments into distinct grain-size fractions for geochemical analysis

A method to separate sediments into discrete size fractions for geochemical analysis has been tested. The procedures were chosen to minimize the destruction or formation of aggregates and involved gentle sieving and settling of wet samples. Freeze-drying and sonication pretreatments, known to influence aggregates, were used for comparison. Freeze-drying was found to increase the silt...
Authors
A. Barbanti, Michael H. Bothner
By
Woods Hole Coastal and Marine Science Center

Observations of currents and density structure across a buoyant plume front Observations of currents and density structure across a buoyant plume front

Observations of the Mobile Bay, Alabama, plume during a flood event in April 1991 reveal significant differences in the current field on either side of a front associated with the buoyant plume. During a strong southeasterly wind, turbid, low salinity water from Mobile Bay was pushed through an opening in the west side of the ebb-tidal delta and moved parallel to the coast. A stable...
Authors
G. Gelfenbaum, R. P. Stumpf
By
Woods Hole Coastal and Marine Science Center

Significant bed elevation changes related to Gulf Stream dynamics on the South Carolina continental shelf Significant bed elevation changes related to Gulf Stream dynamics on the South Carolina continental shelf

Photographs of the seabed taken from an instrumented bottom tripod located approximately 100 km east of Charleston, South Carolina, reveal bed elevation changes of over 20 cm between July and November 1978. The tripod was in 85 m of water and was equipped with two current meters at 38.7 and 100 cm from the bed, a pressure sensor, a transmissometer, which fouled early during the...
Authors
G. Gelfenbaum, M. Noble
By
Woods Hole Coastal and Marine Science Center

Paper plant effluent revisited-southern Lake Champlain, Vermont and New York Paper plant effluent revisited-southern Lake Champlain, Vermont and New York

We used geologic and geochemical techniques to document the change with time of the distribution and concentration of contaminated bottom sediments in southern Lake Champlain near an International Paper Company plant. Our work, initiated in 1972, was expanded on behalf of Vermont citizens in a class-action suit against the International Paper Company. To update our 1972-1973 results, we...
Authors
R.S. Haupt, D. W. Folger
By
Woods Hole Coastal and Marine Science Center

Processes affecting coastal wetland loss in the Louisiana deltaic plain Processes affecting coastal wetland loss in the Louisiana deltaic plain

Nowhere are the problems of coastal wetland loss more serious and dramatic than in the Mississippi River deltaic plain region of south-central Louisiana. In that area, rates of shoreline erosion of 20 m.yr and loss of land area of up to 75 km/yr result from a complex combination of natural (delta switching, subsidence, sea-level rise, storms) and human (flood control, navigation, oil and...
Authors
S. Jeffress Williams, Shea Penland, Harry H. Roberts
By
Woods Hole Coastal and Marine Science Center
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