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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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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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Coastal and Marine Research News from Across the USGS

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Filter Total Items: 1737

The role of pre-magmatic rifting in shaping a volcanic continental margin: An example from the Eastern North American Margin The role of pre-magmatic rifting in shaping a volcanic continental margin: An example from the Eastern North American Margin

Both magmatic and tectonic processes contribute to the formation of volcanic continental margins. Such margins are thought to undergo extension across a narrow zone of lithospheric thinning (~100 km). New observations based on existing and reprocessed data from the Eastern North American Margin contradict this hypothesis. With ~64,000 km of 2‐D seismic data tied to 40 wells combined with...
Authors
G. Lang, Uri S. ten Brink, Deborah Hutchinson, G.S. Mountain, U. Schattner
By
Woods Hole Coastal and Marine Science Center

Numerical characterization of cohesive and non-cohesive ‘sediments’ under different consolidation states using 3D DEM triaxial experiments Numerical characterization of cohesive and non-cohesive ‘sediments’ under different consolidation states using 3D DEM triaxial experiments

The Discrete Element Method has been widely used to simulate geo-materials due to time and scale limitations met in the field and laboratories. While cohesionless geo-materials were the focus of many previous studies, the deformation of cohesive geo-materials in 3D remained poorly characterized. Here, we aimed to generate a range of numerical ‘sediments’, assess their mechanical response...
Authors
Hadar Elyashiv, Revital Bookman, Lennart Siemann, Uri S. ten Brink, Katrin Huhn
By
Woods Hole Coastal and Marine Science Center

Modeling the spatial dynamics of marsh ponds in New England salt marshes Modeling the spatial dynamics of marsh ponds in New England salt marshes

Ponds are common features on salt marshes, yet it is unclear how they affect large-scale marsh evolution. We developed a spatially explicit model that combines cellular automata for pond formation, expansion, and drainage, and partial differential equations for elevation dynamics. We use the mesotidal Barnstable marsh (MA, USA) as a case study, for which we measured pond expansion rate...
Authors
G. Mariotti, A. Spivak, S.Y. Luk, G. Ceccherini, M. Tyrrell, Meagan Gonneea Eagle
By
Woods Hole Coastal and Marine Science Center

High concentration methane hydrate in a silt reservoir from the deep-water Gulf of Mexico High concentration methane hydrate in a silt reservoir from the deep-water Gulf of Mexico

We present results from 30 quantitative degassing experiments of pressure core sections collected during The University of Texas-Gulf of Mexico 2-1 (UT-GOM2-1) Hydrate Pressure Coring Expedition at Green Canyon Block 955 in the deep-water Gulf of Mexico as part of The University of Texas at Austin–US Department of Energy Deepwater Methane Hydrate Characterization and Scientific...
Authors
Stephen Philips, Peter Flemings, Melanie Holland, Peter Schultheiss, William F. Waite, Junbong Jang, Ethan Petrou, Helen Hammon
By
Woods Hole Coastal and Marine Science Center

Pressure coring a Gulf of Mexico deep-water turbidite gas hydrate reservoir: Initial results from The University of Texas–Gulf of Mexico 2-1 (UT-GOM2-1) Hydrate Pressure Coring Expedition Pressure coring a Gulf of Mexico deep-water turbidite gas hydrate reservoir: Initial results from The University of Texas–Gulf of Mexico 2-1 (UT-GOM2-1) Hydrate Pressure Coring Expedition

The University of Texas Hydrate Pressure Coring Expedition (UT-GOM2-1) recovered cores at near in situ formation pressures from a gas hydrate reservoir composed of sandy silt and clayey silt beds in Green Canyon Block 955 in the deep-water Gulf of Mexico. The expedition results are synthesized and linked to other detailed analyses presented in this volume. Millimeter- to meter-scale beds...
Authors
Peter Flemings, Stephen Phillips, Ray Boswell, Timothy Collett, Ann Cook, Tian Dong, Matthew Frye, David Goldberg, Giles Guerin, Melanie Holland, Junbong Jang, Kevin Meazell, Jamie Morrison, Joshua O’Connell, Ethan Petrou, Tom Pettigrew, Peter Polito, Alexey Portnov, Manasj Santra, Peter Schultheiss, Yongkoo Seol, William Shedd, Evan S. Solomon, Carla Thomas, William F. Waite, Kehua You
By
Woods Hole Coastal and Marine Science Center

Wave-resolving Shoreline Boundary Conditions for Wave-Averaged Coastal Models Wave-resolving Shoreline Boundary Conditions for Wave-Averaged Coastal Models

Downscaling broadscale ocean model information to resolve the fine-scale swash-zone dynamics has a number of applications, such as improved resolution of coastal flood hazard drivers, modeling of sediment transport and seabed morphological evolution. A new method is presented, which enables wave-averaged models for the nearshore circulation to include short-wave induced swash zone...
Authors
Francesco Memmola, Alessandro Coluccelli, Aniello Russo, John C. Warner, Maurizio Brocchini
By
Woods Hole Coastal and Marine Science Center

Woods Hole Coastal and Marine Science Center—2019 annual report Woods Hole Coastal and Marine Science Center—2019 annual report

The 2019 annual report of the U.S. Geological Survey Woods Hole Coastal and Marine Science Center highlights accomplishments of 2019, includes a list of 2019 publications, and summarizes the work of the center, as well as the work of each of its science groups. This product allows readers to gain a general understanding of the focus areas of the center’s scientific research and learn...
Authors
Sara Ernst
By
Woods Hole Coastal and Marine Science Center

Plant biomass and rates of carbon dioxide uptake are enhanced by successful restoration of tidal connectivity in salt marshes Plant biomass and rates of carbon dioxide uptake are enhanced by successful restoration of tidal connectivity in salt marshes

Salt marshes, due to their capability to bury soil carbon (C), are potentially important regional C sinks. Efforts to restore tidal flow to former salt marshes have increased in recent decades in New England (USA), as well as in some other parts of the world. In this study, we investigated plant biomass and carbon dioxide (CO2) fluxes at four sites where restoration of tidal flow...
Authors
Fanning Wang, Meagan J. Eagle, Kevin D. Kroeger, Amanda C. Spivak, Jianwu Tang
By
Woods Hole Coastal and Marine Science Center

Focused fluid flow along the Nootka Fault Zone and continental slope, Explorer-Juan de Fuca plate boundary Focused fluid flow along the Nootka Fault Zone and continental slope, Explorer-Juan de Fuca plate boundary

Geophysical and geochemical data indicate there is abundant fluid expulsion in the Nootka fault zone (NFZ) between the Juan de Fuca and Explorer plates and the Nootka continental slope. Here we combine observations from > 20 years of investigations to demonstrate the nature of fluid-flow along the NFZ, which is the seismically most active region off Vancouver Island. Seismicity reaching...
Authors
M. Riedel, K .M. M. Rohr, G. D. Spence, D. Kelley, J. Delaney, L. Lapham, John Pohlman, R.D. Hyndman, E.C. Willoughby
By
Natural Hazards Mission Area, Woods Hole Coastal and Marine Science Center

Sediment delivery to marsh platforms minimized by source decoupling and flux convergence Sediment delivery to marsh platforms minimized by source decoupling and flux convergence

Sediment supply is a primary factor in determining marsh response to sea level rise and is typically approximated through high‐resolution measurements of suspended sediment concentrations (SSCs) from adjacent tidal channels. However, understanding sediment transport across the marsh itself remains limited by discontinuous measurements of SSC over individual tidal cycles. Here, we use an...
Authors
Daniel Coleman, Neil K. Ganju, Matthew Kirwan
By
Woods Hole Coastal and Marine Science Center

Seismic stratigraphic framework of the continental shelf offshore Delmarva, U.S.A.: Implications for Mid-Atlantic Bight evolution since the Pliocene Seismic stratigraphic framework of the continental shelf offshore Delmarva, U.S.A.: Implications for Mid-Atlantic Bight evolution since the Pliocene

Understanding how past coastal systems have evolved is critical to predicting future coastal change. Using over 12,000 trackline kilometers of recently collected, co-located multi-channel boomer, sparker and chirp seismic reflection profile data integrated with previously collected borehole and vibracore data, we define the upper ( 115 m below mean lower low water) seismic stratigraphic...
Authors
Laura L. Brothers, David S. Foster, Elizabeth A. Pendleton, Wayne E. Baldwin
By
Woods Hole Coastal and Marine Science Center

An international code comparison study on coupled thermal, hydrologic and geomechanical processes of natural gas hydrate-bearing sediments An international code comparison study on coupled thermal, hydrologic and geomechanical processes of natural gas hydrate-bearing sediments

Geologic reservoirs containing gas hydrate occur beneath permafrost environments and within marine continental slope sediments, representing a potentially vast natural gas source. Numerical simulators provide scientists and engineers with tools for understanding how production efficiency depends on the numerous, interdependent (coupled) processes associated with potential production...
Authors
M.D. White, T.J. Kneafsey, Y. Seol, William F. Waite, S. Uchida, J.S. Lin, E.M. Myshakin, X Gai, S. Gupta, M.T. Reagan, A.F. Queiruga, S. Kim
By
Woods Hole Coastal and Marine Science Center
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