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Scientific literature and information products produced by Woods Hole Coastal and Marine Science Center staff

Filter Total Items: 1737

Tidal oscillation of sediment between a river and a bay: A conceptual model Tidal oscillation of sediment between a river and a bay: A conceptual model

A conceptual model of fine sediment transport between a river and a bay is proposed, based on observations at two rivers feeding the same bay. The conceptual model consists of river, transitional, and bay regimes. Within the transitional regime, resuspension, advection, and deposition create a mass of sediment that oscillates landward and seaward. While suspended, this sediment mass...
Authors
N. K. Ganju, D. H. Schoellhamer, J.C. Warner, M.F. Barad, S.G. Schladow

Petrography and character of the bedrock surface beneath western Cape Cod, Massachusetts Petrography and character of the bedrock surface beneath western Cape Cod, Massachusetts

Cores collected during recent drilling in western Cape Cod, Massachusetts provide insight into the topography and petrology of the underlying bedrock. 62 drill sites spread over a ???140 km2 study area produced cores of granitoids (31), orthogneisses (20), basalts/diabases (4), amphibolites (3), felsic mylonites (2), and dolomitic rock (2). Granitoid cores range in composition from...
Authors
B.W. Hallett, L.J. Poppe, S.G. Brand

Bioturbation depths, rates and processes in Massachusetts Bay sediments inferred from modeling of 210Pb and 239 + 240Pu profiles Bioturbation depths, rates and processes in Massachusetts Bay sediments inferred from modeling of 210Pb and 239 + 240Pu profiles

Profiles of 210Pb and 239 + 15 cm depth or that biodiffusive mixing mediated by other organisms is occurring at depth. Additional constraints from surficial sediment 234Th data suggest that in this half of the cores, the vast majority of the present-day flux of recent, nuclide-bearing material to these core sites is transported over a timescale of a month or more to a depth of a few...
Authors
John Crusius, Michael H. Bothner, Christopher K. Sommerfield

Coastal Vulnerability Assessment of Padre Island National Seashore (PAIS) to Sea-Level Rise Coastal Vulnerability Assessment of Padre Island National Seashore (PAIS) 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 Padre Island National Seashore in Texas. 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, shoreline change rates, mean tidal range...
Authors
Elizabeth A. Pendleton, E. Robert Thieler, S. Jeffress Williams, Rebecca L. Beavers

Coastal vulnerability assessment of Cumberland Island National Seashore (CUIS) to sea-level rise Coastal vulnerability assessment of Cumberland Island National Seashore (CUIS) 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 Cumberland Island National Seashore in Georgia. 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 rates...
Authors
Elizabeth A. Pendleton, E. Robert Thieler, S. Jeffress Williams

Chronology of sediment deposition in Upper Klamath Lake, Oregon Chronology of sediment deposition in Upper Klamath Lake, Oregon

A combination of tephrochronology and 14C, 210Pb, and 137Cs measurements provides a robust chronology for sedimentation in Upper Klamath Lake during the last 45 000 years. Mixing of surficial sediments and possible mobility of the radio-isotopes limit the usefulness of the 137Cs and 210Pb data, but 210Pb profiles provide reasonable average sediment accumulation rates for the last 100-150...
Authors
Steven M. Colman, J.P. Bradbury, J. P. McGeehin, C. W. Holmes, D. Edginton, A.M. Sarna-Wojcicki

Time-series photographs of the sea floor in western Massachusetts Bay: June 1997 to June 1998 Time-series photographs of the sea floor in western Massachusetts Bay: June 1997 to June 1998

This report presents time-series photographs of the sea floor obtained from an instrumented tripod deployed at Site A in western Massachusetts Bay (42° 22.6' N., 70? 47.0' W., 30 m water depth, from June 1997 through June 1998. Site A is approximately 1 km south of an ocean outfall that began discharging treated sewage effluent from the Boston metropolitan area into Massachusetts Bay in...
Authors
Bradford Butman, P. Soupy Alexander, Michael H. Bothner

Coastal vulnerability assessment of Olympic National Park to sea-level rise Coastal vulnerability assessment of Olympic National Park 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 Olympic National Park (OLYM), Washington. The CVI scores 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, shoreline change rates, mean tidal range...
Authors
Elizabeth A. Pendleton, Erika S. Hammar-Klose, E. Robert Thieler, S. Jeffress Williams

Coastal vulnerability assessment of Fire Island National Seashore to sea-level rise Coastal vulnerability assessment of Fire Island National Seashore 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 Fire Island National Seashore (FIIS), New York. 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, shoreline change rates, mean tidal...
Authors
Elizabeth A. Pendleton, S. Jeffress Williams, E. Robert Thieler

The freshwater transport and dynamics of the western Maine coastal current The freshwater transport and dynamics of the western Maine coastal current

Observations in the Gulf of Maine, USA, were used to characterize the freshwater transport, temporal variability and dynamics of the western Maine coastal current. These observations included moored measurements, multiple hydrographic surveys, and drifter releases during April–July of 1993 and 1994. There is a strong seasonal signal in salinity and along-shore velocity of the coastal...
Authors
W.R. Geyer, R. P. Signell, D.A. Fong, Jingyuan Wang, D.M. Anderson, B.A. Keafer

Late Eocene impacts: Geologic record, correlation, and paleoenvironmental consequences Late Eocene impacts: Geologic record, correlation, and paleoenvironmental consequences

We present new magnetostratigraphic and stable isotopic (𝜹18C, 𝜹13Ccarb) data to help improve correlations among three late Eocene impact craters and their inferred breccia and ejecta deposits. Our analyses also shed light on potential global environmental consequences attributable to the impacts. The new data come from a continuously cored interval of the subsurface Chickahominy...
Authors
C. Wylie Poag, Edward A. Mankinen, Richard D. Norris
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