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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

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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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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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Coastal and Marine Research News from Across the USGS

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Filter Total Items: 1737

Thermodynamic insights into the production of methane hydrate reservoirs from depressurization of pressure cores Thermodynamic insights into the production of methane hydrate reservoirs from depressurization of pressure cores

We present results of slow (multiple day) depressurization experiments of pressure cores recovered from Green Canyon Block 955 in the northern Gulf of Mexico during The University of Texas at Austin Hydrate Pressure Coring Expedition (UT-GOM2-1). These stepwise depressurization experiments monitored the pressure and temperature within the core storage chamber during each pressure step...
Authors
Stephen C. Phillips, Peter B. Flemings, Kehua You, William F. Waite
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Modeling of barrier breaching during Hurricanes Sandy and Matthew Modeling of barrier breaching during Hurricanes Sandy and Matthew

Physical processes driving barrier island change during storms are important to understand to mitigate coastal hazards and to evaluate conceptual models for barrier evolution. Spatial variations in barrier island topography, landcover characteristics, and nearshore and back-barrier hydrodynamics can yield complex morphological change that requires models of increasing resolution and...
Authors
Christie Hegermiller, John C. Warner, Maitane Olabarrieta, Christopher R. Sherwood, Tarandeep S. Kalra
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities, Hurricane Matthew, Hurricane Sandy, Hurricanes

Primary deposition and early diagenetic effects on the high saturation accumulation of gas hydrate in a silt dominated reservoir in the Gulf of Mexico Primary deposition and early diagenetic effects on the high saturation accumulation of gas hydrate in a silt dominated reservoir in the Gulf of Mexico

On continental margins, high saturation gas hydrate systems (>60% pore volume) are common in canyon and channel environments within the gas hydrate stability zone, where reservoirs are dominated by coarse-grained, high porosity sand deposits. Recent studies, including the results presented here, suggest that rapidly deposited, silt-dominated channel-levee environments can also host high...
Authors
Joel E. Johnson, Douglas R. MacLeod, Stephen C. Phillips, Marcie Phillips Purkey, David L. Divins
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

U.S. Atlantic margin gas hydrates U.S. Atlantic margin gas hydrates

The minimum distribution of gas hydrates on the U.S. Atlantic margin is from offshore South Carolina northward to the longitude of Shallop Canyon on the southern New England margin. Few wells have logged or sampled the gas hydrate zone on this margin, meaning that the presence of gas hydrates is inferred primarily based on seismic data that reveal bottom simulating reflections, mostly at...
Authors
Carolyn D. Ruppel, William Shedd, Nathaniel C. Miller, Jared W. Kluesner, Matthew Frye, Deborah Hutchinson
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Gas hydrates on Alaskan marine margins Gas hydrates on Alaskan marine margins

Gas hydrate distributions on the marine margins of the U.S. state of Alaska are more poorly known than those on other U.S. margins, where bottom simulating reflections have been systematically mapped on marine seismic data to support modern, quantitative assessments of gas-in-place in gas hydrates. The extent of bottom simulating reflections in the U.S. Beaufort Sea has been known since...
Authors
Carolyn D. Ruppel, Patrick E. Hart
By
Coastal and Marine Hazards and Resources Program, Pacific Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, Deep Sea Exploration, Mapping and Characterization

Analysis of ocean dynamics during the impact of Hurricane Matthew using ocean-atmosphere coupling Analysis of ocean dynamics during the impact of Hurricane Matthew using ocean-atmosphere coupling

The main goal of this investigation is to improve the understanding of ocean-atmosphere coupling during hurricanes. The present work involves the integration of the ocean-atmosphere coupled components of the Coupled Ocean-Atmosphere-Wave-Sediment Transport Modeling System in the Very Short Term Prediction System (SisPI). Three experiments are performed: First, using a dynamic sea surface
Authors
Liset Vazquez Proveyer, Maibys Sierra Lorenzo, Roberto Carlos Cruz Rodriguez, John C. Warner
By
Woods Hole Coastal and Marine Science Center

Effect of wave skewness and asymmetry on the evolution of Fire Island, New York Effect of wave skewness and asymmetry on the evolution of Fire Island, New York

Bedload transport of sediment by waves and currents is one of the key physical processes that affect the evolution of coasts, nearshore areas, and the engineering practices there. Wave skewness and asymmetry, both of which increase as waves shoal, result in a net bedload sediment flux over a wave cycle. The impacts of this mechanism on large-scale coastal and shoreline change are...
Authors
Muhammed Parlak, Bilal Ayhan, John C. Warner, Tarandeep S. Kalra, Ilgar Safak
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Hydrometeorology and hydrology of flooding in Cape Fear River basin during Hurricane Florence in 2018 Hydrometeorology and hydrology of flooding in Cape Fear River basin during Hurricane Florence in 2018

Hurricanes are the major flood generating mechanism dominating the upper tail of the peak discharge distribution over the Cape Fear River Basin (CFRB). In 2018, Hurricane Florence swamped CFRB as the ninth-most-destructive hurricane ever hit the United States and set new records of peak discharges over the main river channel and three out of five of its major tributaries. In this study...
Authors
Dongxiao Yin, George Xue, John C. Warner, Daoyang Bao, Yongjie Huang, Wei Yu
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center, Supplemental Appropriations for Disaster Recovery Activities

Recent nitrogen storage and accumulation rates in mangrove soils exceed historic rates in the urbanized San Juan Bay Estuary (Puerto Rico, United States) Recent nitrogen storage and accumulation rates in mangrove soils exceed historic rates in the urbanized San Juan Bay Estuary (Puerto Rico, United States)

Tropical mangrove forests have been described as “coastal kidneys,” promoting sediment deposition and filtering contaminants, including excess nutrients. Coastal areas throughout the world are experiencing increased human activities, resulting in altered geomorphology, hydrology, and nutrient inputs. To effectively manage and sustain coastal mangroves, it is important to understand...
Authors
Cathleen Wigand, Autumn Oczkowski, Benjamin Branoff, Meagan J. Eagle, Alana Hanson, Rose M. Martin, Stephen Balogh, Kenneth Miller, Evelyn Huertas, Joseph Loffredo, Elizabeth Watson
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Digital Shoreline Analysis System (DSAS) version 5.1 user guide Digital Shoreline Analysis System (DSAS) version 5.1 user guide

The Digital Shoreline Analysis System version 5 software is an add-in to Esri ArcGIS Desktop version 10.4–10.7 that enables a user to calculate rate-of-change statistics from a time series of vector shoreline positions. The Digital Shoreline Analysis System provides an automated method for establishing measurement locations, performs rate calculations, provides the statistical data...
Authors
Emily A. Himmelstoss, Rachel E. Henderson, Meredith G. Kratzmann, Amy S. Farris
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Modeling marsh dynamics using a 3-D coupled wave-flow-sediment model Modeling marsh dynamics using a 3-D coupled wave-flow-sediment model

Salt marshes are dynamic biogeomorphic systems that respond to external physical factors, including tides, sediment transport, and waves, as well as internal processes such as autochthonous soil formation. Predicting the fate of marshes requires a modeling framework that accounts for these processes in a coupled fashion. In this study, we implement two new marsh dynamic processes in the...
Authors
Tarandeep S. Kalra, Neil K. Ganju, Alfredo Aretxabaleta, Joel A. Carr, Zafer Defne, Julia Moriarty
By
Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Contribution of deep-sourced carbon from hydrocarbon seeps to sedimentary organic carbon: Evidence from radiocarbon and stable isotope geochemistry Contribution of deep-sourced carbon from hydrocarbon seeps to sedimentary organic carbon: Evidence from radiocarbon and stable isotope geochemistry

Sulfate-driven anaerobic oxidation of methane (AOM) limits the release of methane from marine sediments and promotes the formation of carbonates close to the seafloor in seepage areas along continental margins. It has been established that hydrocarbon seeps are a source of methane, dissolved inorganic carbon, and dissolved organic carbon to marine environments. However, questions remain...
Authors
Dong Feng, John Pohlman, Jorn Peckmann, Yuedong Sun, Yu Hu, Harry Roberts, Duofu Chen
By
Woods Hole Coastal and Marine Science Center
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