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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

usSEABED: Atlantic coast offshore surficial sediment data release usSEABED: Atlantic coast offshore surficial sediment data release

No abstract available.
Authors
Jamey M. Reid, Jane A. Reid, Chris J. Jenkins, Mary E. Hastings, S. Jeffress Williams, Larry J. Poppe
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center

Sedimentary environments of east and west Flower Garden Banks area Sedimentary environments of east and west Flower Garden Banks area

No abstract available.
Authors
Kathryn M. Scanlon, Seth D. Ackerman, Jill E. Rozycki
By
Woods Hole Coastal and Marine Science Center

Vertical motions of the Puerto Rico Trench and Puerto Rico and their cause Vertical motions of the Puerto Rico Trench and Puerto Rico and their cause

The Puerto Rico trench exhibits great water depth, an extremely low gravity anomaly, and a tilted carbonate platform between (reconstructed) elevations of +1300 m and -4000 m. I argue that these features are manifestations of large vertical movements of a segment of the Puerto Rico trench, its forearc, and the island of Puerto Rico that took place 3.3 m.y. ago over a time period as short...
Authors
Uri S. ten Brink
By
Woods Hole Coastal and Marine Science Center

Seismic architecture and lithofacies of turbidites in Lake Mead (Arizona and Nevada, U.S.A.), an analogue for topographically complex basins Seismic architecture and lithofacies of turbidites in Lake Mead (Arizona and Nevada, U.S.A.), an analogue for topographically complex basins

Turbidites, which have accumulated in Lake Mead since completion of the Hoover Dam in 1935, have been mapped using high-resolution seismic and coring techniques. This lake is an exceptional natural laboratory for studying fine-grained turbidite systems in complex topographic settings. The lake comprises four relatively broad basins separated by narrow canyons, and turbidity currents run...
Authors
D.C. Twichell, V.A. Cross, A.D. Hanson, B.J. Buck, J.G. Zybala, M.J. Rudin
By
Woods Hole Coastal and Marine Science Center

Surficial geology of the sea floor in west-central Long Island Sound as shown by sidescan-sonar imagery Surficial geology of the sea floor in west-central Long Island Sound as shown by sidescan-sonar imagery

We used sidescan-sonar imagery detailing almost 300 km2 of the sea floor in west-central Long Island Sound in conjunction with bathymetry, sediment samples, bottom video, and seismic data to interpret the area's surficial geology. The distribution of sediments and sedimentary environments interpreted from these data sets represents the Quaternary geology, regional bathymetry, and effects...
Authors
K.Y. McMullen, L.J. Poppe, M. L. DiGiacomo-Cohen, M. S. Moser, E. B. Christman
By
Woods Hole Coastal and Marine Science Center

Catastrophic meltwater discharge down the Hudson Valley: A potential trigger for the Intra-Allerød cold period Catastrophic meltwater discharge down the Hudson Valley: A potential trigger for the Intra-Allerød cold period

Glacial freshwater discharge to the Atlantic Ocean during deglaciation may have inhibited oceanic thermohaline circulation, and is often postulated to have driven climatic fluctuations. Yet attributing meltwater-discharge events to particular climate oscillations is problematic, because the location, timing, and amount of meltwater discharge are often poorly constrained. We present...
Authors
Jeffrey P. Donnelly, Neal W. Driscoll, Elazar Uchupi, Loyd D. Keigwin, William C. Schwab, E. Robert Thieler, Stephen A. Swift
By
Woods Hole Coastal and Marine Science Center

Strange bedfellows - A deep-water hermatypic coral reef superimposed on a drowned barrier island; Southern Pulley Ridge, SW Florida platform margin Strange bedfellows - A deep-water hermatypic coral reef superimposed on a drowned barrier island; Southern Pulley Ridge, SW Florida platform margin

The southeastern component of a subtle ridge feature extending over 200 km along the western ramped margin of the south Florida platform, known as Pulley Ridge, is composed largely of a non-reefal, coastal marine deposit. Modern biostromal reef growth caps southern Pulley Ridge (SPR), making it the deepest hermatypic reef known in American waters. Subsurface ridge strata are layered...
Authors
B. D. Jarrett, A. C. Hine, R. B. Halley, D. F. Naar, S. D. Locker, A.C. Neumann, D. Twichell, C. Hu, B.T. Donahue, W.C. Jaap, D. Palandro, K. Ciembronowicz
By
Woods Hole Coastal and Marine Science Center

Physical properties of sediment containing methane gas hydrate Physical properties of sediment containing methane gas hydrate

A study conducted by the US Geological Survey (USGS) on the formation, behavior, and properties of mixtures of gas hydrate and sediment is presented. The results show that the properties of host material influence the type and quantity of hydrates formed. The presence of hydrate during mechanical shear tests affects the measured sediment pore pressure. Sediment shear strength may be...
Authors
W.J. Winters, W.F. Waite, D.H. Mason, L.Y. Gilbert
By
Woods Hole Coastal and Marine Science Center

Structure and variability of the Western Maine Coastal Current Structure and variability of the Western Maine Coastal Current

Analyses of CTD and moored current meter data from 1998 and 2000 reveal a number of mechanisms influencing the flow along the western coast of Maine. On occasions, the Eastern Maine Coastal Current extends into the western Gulf of Maine where it takes the form of a deep (order 100 m deep) and broad (order 20 km wide) southwestward flow with geostrophic velocities exceeding 20 cm s -1...
Authors
J.H. Churchill, N.R. Pettigrew, R. P. Signell
By
Woods Hole Coastal and Marine Science Center

A modified beam-to-earth transformation to measure short-wavelength internal waves with an acoustic Doppler current profiler A modified beam-to-earth transformation to measure short-wavelength internal waves with an acoustic Doppler current profiler

The algorithm used to transform velocity signals from beam coordinates to earth coordinates in an acoustic Doppler current profiler (ADCP) relies on the assumption that the currents are uniform over the horizontal distance separating the beams. This condition may be violated by (nonlinear) internal waves, which can have wavelengths as small as 100-200 m. In this case, the standard...
Authors
A. Scotti, B. Butman, R.C. Beardsley, P. S. Alexander, S. Anderson
By
Woods Hole Coastal and Marine Science Center

Performance of four turbulence closure models implemented using a generic length scale method Performance of four turbulence closure models implemented using a generic length scale method

A two-equation turbulence model (one equation for turbulence kinetic energy and a second for a generic turbulence length-scale quantity) proposed by Umlauf and Burchard [J. Marine Research 61 (2003) 235] is implemented in a three-dimensional oceanographic model (Regional Oceanographic Modeling System; ROMS v2.0). These two equations, along with several stability functions, can represent...
Authors
J.C. Warner, C. R. Sherwood, H.G. Arango, R. P. Signell
By
Woods Hole Coastal and Marine Science Center

A preliminary evaluation of nutrient and ground-water fluxes to the Neuse River Estuary, North Carolina A preliminary evaluation of nutrient and ground-water fluxes to the Neuse River Estuary, North Carolina

No abstract available.
Authors
Timothy B. Spruill, John F. Bratton, John Crusius, Beth M. Wrege, G. Strickland
By
Woods Hole Coastal and Marine Science Center
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