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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

Contaminant distribution and accumulation in the surface sediments of Long Island Sound Contaminant distribution and accumulation in the surface sediments of Long Island Sound

The distribution of contaminants in surface sediments has been measured and mapped as part of a U.S. Geological Survey study of the sediment quality and dynamics of Long Island Sound. Surface samples from 219 stations were analyzed for trace (Ag, Ba, Cd, Cr, Cu, Hg, Ni, Pb, V, Zn and Zr) and major (Al, Fe, Mn, Ca, and Ti) elements, grain size, and Clostridium perfringens spores...
Authors
E.L. Mecray, Marilyn R. Buchholtz ten Brink
By
Woods Hole Coastal and Marine Science Center, USGS Science in Long Island Sound and its Watershed

Circulation and sediment transport in the vicinity of the Hudson Shelf Valley Circulation and sediment transport in the vicinity of the Hudson Shelf Valley

Sediment transport in the Hudson Shelf Valley and on the adjacent Long Island Shelf are evaluated using available data along with a three-dimensional wind-driven circulation model and a one-dimensional sediment transport model. Winds from the northwest drive currents up the Hudson Shelf Valley, while winds from the east produce weaker currents directed down the valley. Consistent with...
Authors
Courtney K. Harris, Richard P. Signell
By
Woods Hole Coastal and Marine Science Center

Data report: Effects of drying methods and temperatures on water content and porosity of sediment from the Blake Ridge Data report: Effects of drying methods and temperatures on water content and porosity of sediment from the Blake Ridge

[No abstract available]
Authors
W.J. Winters
By
Woods Hole Coastal and Marine Science Center

Bottom currents and sediment transport in Long Island Sound: A modeling study Bottom currents and sediment transport in Long Island Sound: A modeling study

A high resolution (300-400 m grid spacing), process oriented modeling study was undertaken to elucidate the physical processes affecting the characteristics and distribution of sea-floor sedimentary environments in Long Island Sound. Simulations using idealized forcing and high-resolution bathymetry were performed using a three-dimensional circulation model ECOM (Blumberg and Mellor...
Authors
R. P. Signell, J. H. List, A.S. Farris
By
Woods Hole Coastal and Marine Science Center, USGS Science in Long Island Sound and its Watershed

Distribution of surficial sediment in Long Island Sound and adjacent waters: Texture and total organic carbon Distribution of surficial sediment in Long Island Sound and adjacent waters: Texture and total organic carbon

The surficial sediment distribution within Long Island Sound has been mapped and described using bottom samples, photography, and sidescan sonar, combined with information from the geologic literature. The distributions of sediment type and total organic carbon (TOC) reveal several broad trends that are largely related to the sea-floor geology, the bathymetry, and the effects of modern...
Authors
L.J. Poppe, H.J. Knebel, Z.J. Mlodzinska, M. E. Hastings, B. A. Seekins
By
Woods Hole Coastal and Marine Science Center, USGS Science in Long Island Sound and its Watershed

Seabed observation and sampling system Seabed observation and sampling system

No abstract available.
Authors
Page C. Valentine, Dann Blackwood, Kenneth F. Parolski
By
Woods Hole Coastal and Marine Science Center

Formation of natural gas hydrates in marine sediments. Gas hydrate growth and stability conditioned by host sediment properties Formation of natural gas hydrates in marine sediments. Gas hydrate growth and stability conditioned by host sediment properties

The stability conditions of submarine gas hydrates (methane clathrates) are largely dictated by pressure, temperature, gas composition, and pore water salinity. However, the physical properties and surface chemistry of the host sediments also affect the thermodynamic state, growth kinetics, spatial distributions, and growth forms of clathrates. Our model presumes that gas hydrate behaves...
Authors
M. B. Clennell, P. Henry, M. Hovland, J.S. Booth, W.J. Winters, M. Thomas
By
Woods Hole Coastal and Marine Science Center

Numerical model of frazil ice and suspended sediment concentrations and formation of sediment laden ice in the Kara Sea Numerical model of frazil ice and suspended sediment concentrations and formation of sediment laden ice in the Kara Sea

A one-dimensional (vertical) numerical model of currents, mixing, frazil ice concentration, and suspended sediment concentration has been developed and applied in the shallow southeastern Kara Sea. The objective of the calculations is to determine whether conditions suitable for turbid ice formation can occur during times of rapid cooling and wind- and wave-induced sediment resuspension...
Authors
C. R. Sherwood
By
Woods Hole Coastal and Marine Science Center

Photographic evaluation of the impacts of bottom fishing on benthic epifauna Photographic evaluation of the impacts of bottom fishing on benthic epifauna

The gravel sediment habitat on the northern edge of Georges Bank (East coast of North America) is an important nursery area for juvenile fish, and the site of a productive scallop fishery. During two cruises to this area in 1994 we made photographic transects at sites of varying depths that experience varying degrees of disturbance from otter trawling and scallop dredging. Differences...
Authors
J.S. Collie, G.A. Escanero, P. C. Valentine
By
Woods Hole Coastal and Marine Science Center

Predicting the physical effects of relocating Boston's sewage outfall Predicting the physical effects of relocating Boston's sewage outfall

Boston is scheduled to cease discharge of sewage effluent in Boston Harbor in Spring 2000 and begin discharge at a site 14 km offshore in Massachusetts Bay in a water depth of about 30 m. The effects of this outfall relocation on effluent dilution, salinity and circulation are predicted with a three-dimensional hydrodynamic model. The simulations predict that the new bay outfall will...
Authors
R. P. Signell, H. L. Jenter, A.F. Blumberg
By
Woods Hole Coastal and Marine Science Center

Post-Mazama (7 KA) faulting beneath Upper Klamath Lake, Oregon Post-Mazama (7 KA) faulting beneath Upper Klamath Lake, Oregon

High-resolution seismic-reflection profiles (3.5 kHz) show that a distinctive, widespread reflection occurs in the sediments beneath Upper Klamath Lake, Oregon. Coring reveals that this reflection is formed by Mazama tephra (MT), about 7 ka in age. The MT horizon is faulted in many places and locally displaced by as much as 3.1 m. Differential displacement of multiple horizons indicates...
Authors
Steven M. Colman, J. G. Rosenbaum, R. L. Reynolds, A.M. Sarna-Wojcicki
By
Woods Hole Coastal and Marine Science Center

Time-averaged fluxes of lead and fallout radionuclides to sediments in Florida Bay Time-averaged fluxes of lead and fallout radionuclides to sediments in Florida Bay

Recent, unmixed sediments from mud banks of central Florida Bay were dated using 210Pb/226Ra, and chronologies were verified by comparing sediment lead temporal records with Pb/Ca ratios in annual layers of coral (Montastrea annularis) located on the ocean side of the Florida Keys. Dates of sediment lead peaks (1978±2) accord with prior observations of a 6 year lag between the occurrence...
Authors
J. A. Robbins, C. Holmes, R. Halley, Michael H. Bothner, E. Shinn, J. Graney, G. Keeler, M. TenBrink, K.A. Orlandini, D. Rudnick
By
Woods Hole Coastal and Marine Science Center
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