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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

Documentation of the U.S. Geological Survey Oceanographic time-series measurement database Documentation of the U.S. Geological Survey Oceanographic time-series measurement database

The U.S. Geological Survey (USGS) Oceanographic Time-Series Measurement Database contains oceanographic observations made as part of studies designed to increase understanding of sediment transport processes and associated dynamics. Analysis of these data has contributed to more accurate prediction of the movement and fate of sediments and other suspended materials in the coastal ocean...
Authors
Ellyn T. Montgomery, Marinna A. Martini, Frances L. Lightsom, Bradford Butman, Daniel J. Nowacki, Steven E. Suttles
By
Woods Hole Coastal and Marine Science Center

Collaboration tools and techniques for large model datasets Collaboration tools and techniques for large model datasets

In MREA and many other marine applications, it is common to have multiple models running with different grids, run by different institutions. Techniques and tools are described for low-bandwidth delivery of data from large multidimensional datasets, such as those from meteorological and oceanographic models, directly into generic analysis and visualization tools. Output is stored using...
Authors
R. P. Signell, S. Carniel, J. Chiggiato, I. Janekovic, J. Pullen, C. R. Sherwood
By
Woods Hole Coastal and Marine Science Center

Application of RHIZON samplers to obtain high-resolution pore-fluid records during geochemical investigations of gas hydrate systems Application of RHIZON samplers to obtain high-resolution pore-fluid records during geochemical investigations of gas hydrate systems

Obtaining accurate, high-resolution profiles of pore fluid constituents is critical for characterizing the subsurface geochemistry of hydrate-bearing sediments. Tightly-constrained downcore profiles provide clues about fluid sources, fluid flow, and the milieu of chemical and diagenetic reactions, all of which are used to interpret where and why gas and gas hydrate occur in the natural...
Authors
John W. Pohlman, M Riedel, William F. Waite, K. Rose, L. Lapham
By
Woods Hole Coastal and Marine Science Center

Comparison of two U.S. power-plant carbon dioxide emissions data sets Comparison of two U.S. power-plant carbon dioxide emissions data sets

Estimates of fossil-fuel CO2 emissions are needed to address a variety of climate-change mitigation concerns over a broad range of spatial and temporal scales. We compared two data sets that report power-plant CO 2 emissions in the conterminous U.S. for 2004, the most recent year reported in both data sets. The data sets were obtained from the Department of Energy's Energy Information
Authors
K.V. Ackerman, E.T. Sundquist
By
Woods Hole Coastal and Marine Science Center

Assessing sulfate reduction and methane cycling in a high salinity pore water system in the northern Gulf of Mexico Assessing sulfate reduction and methane cycling in a high salinity pore water system in the northern Gulf of Mexico

Pore waters extracted from 18 piston cores obtained on and near a salt-cored bathymetric high in Keathley Canyon lease block 151 in the northern Gulf of Mexico contain elevated concentrations of chloride (up to 838 mM) and have pore water chemical concentration profiles that exhibit extensive departures (concavity) from steady-state (linear) diffusive equilibrium with depth. Minimum...
Authors
J. W. Pohlman, C. Ruppel, D. R. Hutchinson, R. Downer, R.B. Coffin
By
Woods Hole Coastal and Marine Science Center

Timing and patterns of basin infilling as documented in Lake Powell during a drought Timing and patterns of basin infilling as documented in Lake Powell during a drought

Between 1999 and 2005, drought in the western United States led to a >44 m fall in the level of Lake Powell (Arizona-Utah), the nation's second-largest reservoir. River discharges to the reservoir were halved, yet the rivers still incised the tops of deltas left exposed along the rim of the reservoir by the lake-level fall. Erosion of the deltas enriched the rivers in sediment such that...
Authors
Lincoln F. Pratson, John Hughes-Clarke, Mark Anderson, Thomas Gerber, David C. Twitchell, Ronald Ferrari, Charles A. Nittrouer, Jonathan D. Beaudoin, Jesse Granet, John Crockett
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Estuarine sediment transport by gravity-driven movement of the nepheloid layer, Long Island Sound Estuarine sediment transport by gravity-driven movement of the nepheloid layer, Long Island Sound

Interpretation of sidescan-sonar imagery provides evidence that down-slope gravity-driven movement of the nepheloid layer constitutes an important mode of transporting sediment into the basins of north-central Long Island Sound, a major US East Coast estuary. In the Western Basin, this transport mechanism has formed dendritic drainage systems characterized by branching patterns of low...
Authors
L.J. Poppe, K.Y. McMullen, S.J. Williams, J.M. Crocker, E. F. Doran
By
Woods Hole Coastal and Marine Science Center, USGS Science in Long Island Sound and its Watershed

Chapter 24 Lateral variability of the estuarine turbidity maximum in a tidal strait Chapter 24 Lateral variability of the estuarine turbidity maximum in a tidal strait

The behavior of the estuarine turbidity maximum (ETM) in response to freshwater flow, tidal forcing, and bed dynamics has been studied extensively by many researchers. However, the majority of investigations focus on the longitudinal position and strength of the ETM, which can vary over tidal, spring-neap, and seasonal timescales. ETMs may become longitudinally fixed due to bathymetric...
Authors
N. K. Ganju, D. H. Schoellhamer
By
Water Resources Mission Area, Woods Hole Coastal and Marine Science Center, California Water Science Center

Geologic framework of the 2005 Keathley Canyon gas hydrate research well, northern Gulf of Mexico Geologic framework of the 2005 Keathley Canyon gas hydrate research well, northern Gulf of Mexico

The Keathley Canyon sites drilled in 2005 by the Chevron Joint Industry Project are located along the southeastern edge of an intraslope minibasin (Casey basin) in the northern Gulf of Mexico at 1335 m water depth. Around the drill sites, a grid of 2D high-resolution multichannel seismic data designed to image depths down to at least 1000 m sub-bottom reveals 7 unconformities and...
Authors
D. R. Hutchinson, P. E. Hart, T. S. Collett, K.M. Edwards, D.C. Twichell, F. Snyder
By
Woods Hole Coastal and Marine Science Center

Interpolation of Reconnaissance Multibeam and Single-Beam Bathymetry Offshore of Milford, Connecticut Interpolation of Reconnaissance Multibeam and Single-Beam Bathymetry Offshore of Milford, Connecticut

This report releases echosounder data from the northern part of the National Oceanic and Atmospheric Administration (NOAA) hydrographic survey H11044 in Long Island Sound, off Milford, Connecticut. The data have been interpolated and regridded into a complete-coverage data set and image of the sea floor. The grid produced as a result of the interpolation is at 10-m resolution. These data...
Authors
L.J. Poppe, S.D. Ackerman, K.Y. McMullen, P.T. Schattgen, J.D. Schaer, E. F. Doran
By
Woods Hole Coastal and Marine Science Center

Sediment dispersal in the northwestern Adriatic Sea Sediment dispersal in the northwestern Adriatic Sea

Sediment dispersal in the Adriatic Sea was evaluated using coupled three-dimensional circulation and sediment transport models, representing conditions from autumn 2002 through spring 2003. The calculations accounted for fluvial sources, resuspension by waves and currents, and suspended transport. Sediment fluxes peaked during southwestward Bora wind conditions that produced energetic...
Authors
C. K. Harris, C. R. Sherwood, R. P. Signell, A.J. Bever, J.C. Warner
By
Woods Hole Coastal and Marine Science Center

Origin of pockmarks and chimney structures on the flanks of the Storegga Slide, offshore Norway Origin of pockmarks and chimney structures on the flanks of the Storegga Slide, offshore Norway

Seafloor pockmarks and subsurface chimney structures are common on the Norwegian continental margin north of the Storegga Slide scar. Such features are generally inferred to be associated with fluid expulsion, and imply overpressures in the subsurface. Six long gravity and piston cores taken from the interior of three pockmarks were compared with four other cores taken from the same area...
Authors
C. K. Paull, W. Ussler, W.S. Holbrook, T.M. Hill, R. Keaten, Jurgen Mienert, H. Haflidason, J.E. Johnson, W.J. Winters, T.D. Lorenson
By
Woods Hole Coastal and Marine Science Center
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