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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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Age model for a continuous, ca 250-ka Quaternary lacustrine record from Bear Lake, Utah-Idaho Age model for a continuous, ca 250-ka Quaternary lacustrine record from Bear Lake, Utah-Idaho

The Quaternary sediments sampled by continuous 120-m-long drill cores from Bear Lake (Utah-Idaho) comprise one of the longest lacustrine sequences recovered from an extant lake. The cores serve as a good case study for the construction of an age model for sequences that extend beyond the range of radiocarbon dating. From a variety of potential age indicators, we selected a combination of
Authors
Steven M. Colman, D. S. Kaufman, Jordon Bright, C. Heil, J.W. King, W.E. Dean, J. G. Rosenbaum, R. M. Forester, J. L. Bischoff, Marie Perkins, J. P. McGeehin
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Geosciences and Environmental Change Science Center, Woods Hole Coastal and Marine Science Center

Physical properties of Long Island Sound sediment cores Physical properties of Long Island Sound sediment cores

This report presents data on x-radiography, water content, and sediment texture from sediment cores collected in 1996 in Long Island Sound, offshore of Connecticut and New York (Figure 1). Core locations and analytical data are presented in both graphical and numerical form. The physical properties data presented here are a subset of a larger dataset consisting of results from these...
Authors
Joel Moore, Erin Galvin Gutierrez, Ellen L. Mecray, Marilyn R. Buchholtz ten Brink
By
Woods Hole Coastal and Marine Science Center, USGS Science in Long Island Sound and its Watershed

Gas hydrate potential of the mid Atlantic outer continental shelf Gas hydrate potential of the mid Atlantic outer continental shelf

For the last two years, the Minerals Management Service (MMS) has been studying the resource potential of gas hydrates in federal offshore lands of the Outer Continental Shelf (OCS) off the Atlantic, Gulf of Mexico, Pacific, and Alaska in collaboration with the U.S. Geological Survey (USGS), the Department of Energy (DOE), the National Oceanic and Atmospheric Administration (NOAA), the...
Authors
William W. Shedd, Deborah R. Hutchinson
By
Woods Hole Coastal and Marine Science Center

Comment on "Thermal and visual time-series at a seafloor gas hydrate deposit on the Gulf of Mexico slope," by I.R. MacDonald, L.C. Bender, M. Vardaro, B. Bernard, and J.M. Brooks[Earth Planet. Sci. Lett. 233 (2005) 49-59] Comment on "Thermal and visual time-series at a seafloor gas hydrate deposit on the Gulf of Mexico slope," by I.R. MacDonald, L.C. Bender, M. Vardaro, B. Bernard, and J.M. Brooks[Earth Planet. Sci. Lett. 233 (2005) 49-59]

[No abstract available]
Authors
W.F. Waite, C.D. Ruppel, S. H. Kirby
By
Woods Hole Coastal and Marine Science Center

An effective medium inversion algorithm for gas hydrate quantification and its application to laboratory and borehole measurements of gas hydrate-bearing sediments An effective medium inversion algorithm for gas hydrate quantification and its application to laboratory and borehole measurements of gas hydrate-bearing sediments

The presence of gas hydrate in marine sediments alters their physical properties. In some circumstances, gas hydrate may cement sediment grains together and dramatically increase the seismic P- and S-wave velocities of the composite medium. Hydrate may also form a load-bearing structure within the sediment microstructure, but with different seismic wave attenuation characteristics...
Authors
S. Chand, T.A. Minshull, J.A. Priest, A.I. Best, C.R.I. Clayton, W.F. Waite
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Woods Hole Coastal and Marine Science Center

Shelf stratigraphy and the influence of antecedent substrate on Holocene reef development, south Oahu, Hawaii Shelf stratigraphy and the influence of antecedent substrate on Holocene reef development, south Oahu, Hawaii

Paired analyses of drill cores and high-resolution seismic reflection data show that development of Holocene framework reefs on the Oahu (Hawaii) shelf is limited to settings of low wave energy and to the period 8000 to 3000 yr BP. A prominent bounding surface that is mapped across much of the Oahu shelf is an erosion surface cut into Marine Isotope Stages 5 and 7 limestones that show...
Authors
E. E. Grossman, W. A. Barnhardt, P. Hart, B. M. Richmond, M.E. Field
By
Woods Hole Coastal and Marine Science Center

Flow convergence caused by a salinity minimum in a tidal channel Flow convergence caused by a salinity minimum in a tidal channel

Residence times of dissolved substances and sedimentation rates in tidal channels are affected by residual (tidally averaged) circulation patterns. One influence on these circulation patterns is the longitudinal density gradient. In most estuaries the longitudinal density gradient typically maintains a constant direction. However, a junction of tidal channels can create a local reversal...
Authors
John C. Warner, David H. Schoellhamer, Jon R. Burau, S. Geoffrey Schladow
By
Water Resources Mission Area, Woods Hole Coastal and Marine Science Center, California Water Science Center, San Francisco Bay and Sacramento-San Joaquin Delta Estuary

Rupture models for the A.D. 900-930 Seattle fault earthquake from uplifted shorelines Rupture models for the A.D. 900-930 Seattle fault earthquake from uplifted shorelines

A major earthquake on the Seattle fault, Washington, ca. A.D. 900-930 was first inferred from uplifted shorelines and tsunami deposits. Despite follow-up geophysical and geological investigations, the rupture parameters of the earthquake and the geometry of the fault are uncertain. Here we estimate the fault geometry, slip direction, and magnitude of the earthquake by modeling shoreline...
Authors
Uri S. ten Brink, J. Song, R.C. Bucknam
By
Woods Hole Coastal and Marine Science Center

Coastal vulnerability assessment of Point Reyes National Seashore (PORE) to sea-level rise Coastal vulnerability assessment of Point Reyes National Seashore (PORE) to sea-level rise

A coastal vulnerability index (CVI) was used to map the relative vulnerability of the coast to future sea-level rise within Point Reyes National Seashore in Northern California. The CVI ranks the following in terms of their physical contribution to sea-level rise-related coastal change: geomorphology, regional coastal slope, rate of relative sea-level rise, historical shoreline change...
Authors
Elizabeth A. Pendleton, E. Robert Thieler, S. Jeffress Williams
By
Woods Hole Coastal and Marine Science Center

Hydratools manual version 1.0, documentation for a MATLAB®-based post-processing package for the Sontek Hydra Hydratools manual version 1.0, documentation for a MATLAB®-based post-processing package for the Sontek Hydra

The Sediment Transport Instrumentation Group (STG) at the U.S. Geological Survey (USGS) Woods Hole Science Center has a long-standing comitment to providing scientists with high quality oceanographic data. To meet this commitment, STG personnel are vigilant in checking data as well as hardware for signs of instrument malfunction. STG data sets are accompanied by processing histories to...
Authors
Marinna A. Martini, Chris Sherwood, Rachel Horwitz, Andree Ramsey, Fran Lightsom, Jessie Lacy, Jingping Xu
By
Pacific Coastal and Marine Science Center, Woods Hole Coastal and Marine Science Center, Pacific Islands Water Science Center

Shear velocity estimates on the inner shelf off Grays Harbor, Washington, USA Shear velocity estimates on the inner shelf off Grays Harbor, Washington, USA

Shear velocity was estimated from current measurements near the bottom off Grays Harbor, Washington between May 4 and June 6, 2001 under mostly wave-dominated conditions. A downward-looking pulse-coherent acoustic Doppler profiler (PCADP) and two acoustic-Doppler velocimeters (field version; ADVFs) were deployed on a tripod at 9-m water depth. Measurements from these instruments were...
Authors
C. R. Sherwood, J.R. Lacy, G. Voulgaris
By
Woods Hole Coastal and Marine Science Center

Acoustic stratigraphy of Bear Lake, Utah-Idaho: late Quaternary sedimentation patterns in a simple half-graben Acoustic stratigraphy of Bear Lake, Utah-Idaho: late Quaternary sedimentation patterns in a simple half-graben

A 277-km network of high-resolution seismic-reflection profiles, supplemented with a sidescan-sonar mosaic of the lake floor, was collected in Bear Lake, Utah–Idaho, in order to explore the sedimentary framework of the lake's paleoclimate record. The acoustic stratigraphy is tied to a 120 m deep, continuously cored drill hole in the lake. Based on the age model for the drill core, the...
Authors
Steven M. Colman
By
Natural Hazards Mission Area, Coastal and Marine Hazards and Resources Program, Geosciences and Environmental Change Science Center, Woods Hole Coastal and Marine Science Center
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