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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

Observations of pockmark flow structure in Belfast Bay, Maine, Part 2: evidence for cavity flow Observations of pockmark flow structure in Belfast Bay, Maine, Part 2: evidence for cavity flow

Pockmark flow circulation patterns were investigated through current measurements along the rim and center of two pockmarks in Belfast Bay, Maine. Observed time-varying current profiles have a complex vertical and directional structure that rotates significantly with depth and is strongly dependent on the phase of the tide. Observations of the vertical profiles of horizontal velocities...
Authors
Christina L. Fandel, Thomas C. Lippmann, Diane L. Foster, Laura L. Brothers
By
Woods Hole Coastal and Marine Science Center

Observations of pockmark flow structure in Belfast Bay, Maine, Part 1: current-induced mixing Observations of pockmark flow structure in Belfast Bay, Maine, Part 1: current-induced mixing

Field observations of current profiles and temperature, salinity, and density structure were used to examine vertical mixing within two pockmarks in Belfast Bay, Maine. The first is located in 21 m water depth (sea level to rim), nearly circular in shape with a 45 m rim diameter and 12 m rim-to-bottom relief. The second is located in 25 m water depth, more elongated in shape with an...
Authors
Christina L. Fandel, Thomas C. Lippmann, James D. Irish, Laura L. Brothers
By
Woods Hole Coastal and Marine Science Center

Smartphone-based distributed data collection enables rapid assessment of shorebird habitat suitability Smartphone-based distributed data collection enables rapid assessment of shorebird habitat suitability

Understanding and managing dynamic coastal landscapes for beach-dependent species requires biological and geological data across the range of relevant environments and habitats. It is difficult to acquire such information; data often have limited focus due to resource constraints, are collected by non-specialists, or lack observational uniformity. We developed an open-source smartphone...
Authors
E. Robert Thieler, Sara L. Zeigler, Luke Winslow, Megan Hines, Jordan S. Read, Jordan I. Walker
By
Woods Hole Coastal and Marine Science Center

Subsea ice-bearing permafrost on the U.S. Beaufort Margin: 2. Borehole constraints Subsea ice-bearing permafrost on the U.S. Beaufort Margin: 2. Borehole constraints

Borehole logging data from legacy wells directly constrain the contemporary distribution of subsea permafrost in the sedimentary section at discrete locations on the U.S. Beaufort Margin and complement recent regional analyses of exploration seismic data to delineate the permafrost's offshore extent. Most usable borehole data were acquired on a ∼500 km stretch of the margin and within 30...
Authors
Carolyn D. Ruppel, Bruce M. Herman, Laura L. Brothers, Patrick E. Hart
By
Woods Hole Coastal and Marine Science Center

Subsea ice-bearing permafrost on the U.S. Beaufort Margin: 1. Minimum seaward extent defined from multichannel seismic reflection data Subsea ice-bearing permafrost on the U.S. Beaufort Margin: 1. Minimum seaward extent defined from multichannel seismic reflection data

Subsea ice-bearing permafrost (IBPF) and associated gas hydrate in the Arctic have been subject to a warming climate and saline intrusion since the last transgression at the end of the Pleistocene. The consequent degradation of IBPF is potentially associated with significant degassing of dissociating gas hydrate deposits. Previous studies interpreted the distribution of subsea permafrost...
Authors
Laura L. Brothers, Bruce M. Herman, Patrick E. Hart, Carolyn D. Ruppel
By
Woods Hole Coastal and Marine Science Center

Carbon dioxide fluxes reflect plant zonation and belowground biomass in a coastal marsh Carbon dioxide fluxes reflect plant zonation and belowground biomass in a coastal marsh

Coastal wetlands are major global carbon sinks; however, they are heterogeneous and dynamic ecosystems. To characterize spatial and temporal variability in a New England salt marsh, greenhouse gas (GHG) fluxes were compared among major plant‐defined zones during growing seasons. Carbon dioxide (CO2) and methane (CH4) fluxes were compared in two mensurative experiments during summer...
Authors
Serena Moseman-Valtierra, Omar I. Abdul-Aziz, Jianwu Tang, Khandker S. Ishtiaq, Kate Morkeski, Jordan Mora, Ryan K. Quinn, Rose M. Martin, Katharine Egan, Elizabeth Q. Brannon, Joanna C. Carey, Kevin D. Kroeger
By
Woods Hole Coastal and Marine Science Center

High-resolution geophysical data from the Inner Continental Shelf: South of Martha's Vineyard and north of Nantucket, Massachusetts High-resolution geophysical data from the Inner Continental Shelf: South of Martha's Vineyard and north of Nantucket, Massachusetts

The U.S. Geological Survey and the Massachusetts Office of Coastal Zone Management have cooperated to map approximately 185 square kilometers of the inner continental shelf south of Martha’s Vineyard and north of Nantucket, Massachusetts. This report contains geophysical data collected by the U.S. Geological Survey during a survey in 2013. The geophysical data include (1) swath...
Authors
Seth D. Ackerman, Laura L. Brothers, David S. Foster, Brian D. Andrews, Wayne E. Baldwin, William C. Schwab
By
Woods Hole Coastal and Marine Science Center

Dynamic reusable workflows for ocean science Dynamic reusable workflows for ocean science

Digital catalogs of ocean data have been available for decades, but advances in standardized services and software for catalog search and data access make it now possible to create catalog-driven workflows that automate — end-to-end — data search, analysis and visualization of data from multiple distributed sources. Further, these workflows may be shared, reused and adapted with ease...
Authors
Richard P. Signell, Filipe Fernandez, Kyle Wilcox
By
Woods Hole Coastal and Marine Science Center

Submarine glacial landforms on the Bay of Fundy–northern Gulf of Maine continental shelf Submarine glacial landforms on the Bay of Fundy–northern Gulf of Maine continental shelf

The Bay of Fundy–northern Gulf of Maine region surrounds the southern part of Nova Scotia, encompassing, from west to east, the Bay of Fundy, Grand Manan Basin, German Bank, Browns Bank, Northeast Channel and northeastern Georges Bank (Fig. 1a, b). During the last glacial maximum (c. 24–20 14C ka BP), the SE margin of the Laurentide Ice Sheet (LIS) occupied the study area, the rest of...
Authors
B.J. Todd, J. Shaw, Page C. Valentine
By
Woods Hole Coastal and Marine Science Center

Determining the flux of methane into Hudson Canyon at the edge of methane clathrate hydrate stability Determining the flux of methane into Hudson Canyon at the edge of methane clathrate hydrate stability

Methane seeps were investigated in Hudson Canyon, the largest shelf-break canyon on the northern US Atlantic Margin. The seeps investigated are located at or updip of the nominal limit of methane clathrate hydrate stability. The acoustic identification of bubble streams was used to guide water column sampling in a 32 km2 region within the canyon's thalweg. By incorporating measurements...
Authors
A. Weinsten, L Navarrete, Carolyn D. Ruppel, T.C. Weber, M. Leonte, M. Kellermann, E. Arrington, D.L. Valentine, M.L Scranton, John D. Kessler
By
Woods Hole Coastal and Marine Science Center

Summary of oceanographic and water-quality measurements in Barnegat Bay, New Jersey, 2014–15 Summary of oceanographic and water-quality measurements in Barnegat Bay, New Jersey, 2014–15

Scientists and technical support staff from the U.S. Geological Survey measured suspended-sediment concentrations, currents, pressure, and water temperature in two tidal creeks, Reedy Creek and Dinner Creek, in Barnegat Bay, New Jersey, from August 11, 2014, to July 10, 2015 as part of the Estuarine Physical Response to Storms project (GS2–2D). The oceanographic and water-quality data...
Authors
Steven E. Suttles, Neil K. Ganju, Ellyn T. Montgomery, Patrick J. Dickhudt, Jonathan Borden, Sandra M. Brosnahan, Marinna A. Martini
By
Woods Hole Coastal and Marine Science Center

Pockmark asymmetry and seafloor currents in the Santos Basin offshore Brazil Pockmark asymmetry and seafloor currents in the Santos Basin offshore Brazil

Pockmarks form by gas/fluid expulsion into the ocean and are preserved under conditions of negligible sedimentation. Ideally, they are circular at the seafloor and symmetrical in profile. Elliptical pockmarks are more enigmatic. They are associated with seafloor currents while asymmetry is connected to sedimentation patterns. This study examines these associations through morphological...
Authors
U. Schattner, M. Lazar, L. A. P. Souza, Uri S. ten Brink, M. M. Mahiques
By
Woods Hole Coastal and Marine Science Center
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