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ScholarsArchive at Oregon State University
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During the Internal Waves on the Continental Margin (IWAVES) field experiments of 1996 and 1997 off of Mission Beach, California (32.75° N), we observed energetic, dirunal-band motions across the entire study site in water depths ranging from 15...
2001-09-15 (iso8601)
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We give a detailed description of the semidiurnal-band current and temperature
variability observed during the Internal Waves on the Continental Margin (IWAVES) field
experiments of 1996 and 1997 off of Mission Beach, California. This variability...
2003-03-12 (iso8601)
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Numerical simulations of the Hudson River estuary using a terrain-following, three-dimensional
model (Regional Ocean Modeling System (ROMS)) are compared with an
extensive set of time series and spatially resolved measurements over a 43 day period...
2005-05-04 (iso8601)
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To constrain the fluxes of methane (CH4) in the water column above the accretionary
wedge along the Cascadia continental margin, we measured methane and its stable carbon
isotope signature (δ¹³C-CH₄). The studies focused on Hydrate Ridge (HR),...
2005-05-05 (iso8601)
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Methane reservoirs and seeps are an active component
of the continental margin carbon budget and represent a
poorly characterized pathway for reduced carbon cycling
and methane input to the atmosphere. Active gas seeps from
three shelf settings on...
2005-03-31 (iso8601)
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Instability and turbulence in sheared, salt-fingering favorable stratification are studied
using three-dimensional direct numerical simulations (DNS). Salt-fingering favorable
stratification is gravitationally stable, because the unstable vertical...
2010-07-09T17:22:26Z (iso8601)
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Small pelagic fish represent a critical trophic link between plankton and large predators in marine upwelling ecosystems such as the California Current System. Populations of these fish are highly variable over time and are characterized by...
2010-06-17T15:49:30Z (iso8601)
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We investigate the freshwater composition of the shelf
and slope of the Arctic Ocean north of the New Siberian
Islands using geochemical tracer data (δ¹⁸O, Ba, and PO₄*)
collected following the extreme summer of 2007. We find
that the anomalous...
2009-04-02 (iso8601)
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Monitoring the sources and fate of freshwater in the
East Greenland Current (EGC) is important, as this water
has the potential to suppress deep convection in the Nordic
and Labrador Seas if the outflow of freshwater from the
Arctic Ocean...
2009-10-13 (iso8601)
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Here we report results from an extensive survey of
dissolved organic carbon (DOC) in the Arctic Ocean, which
was achieved by means of a high-resolution, in situ UV fluorometer
deployed on a nuclear submarine. Based on a strong
linear correlation...
1999-04-15 (iso8601)
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Upper ocean hydrography in the central Arctic Ocean
has relaxed since 2000 to near-climatological conditions
that pertained before the dramatic changes of the 1990s. The
behavior of the anomalies of temperature and salinity in the
central Arctic...
2006-09-08 (iso8601)
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Hydrographic and tracer data from 2002 illustrate Atlantic water pathways and
variability in the Mendeleev Ridge and Chukchi Borderland (CBLMR) region of the
Arctic Ocean. Thermohaline double diffusive intrusions (zigzags) dominate both the Fram...
2007-02-03 (iso8601)
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Hydrothermal vents appear to be the tip of the subsurface biosphere in the ocean crust. The primary prducers in this biosphere are prokaryotes that tolerate a wide variety of physical and chemical conditions and are versatile in their use of...
1999-05-25 (iso8601)
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The Hawaii Scientific Drilling Program (HSDP) cored and recovered igneous rock from the surface to a
depth of 3109 m near Hilo, Hawaii. Much of the deeper parts of the hole is composed of hyaloclastite
(fractured basalt glass that has been...
2003-12-11 (iso8601)
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The interaction of basalt melt with mantle harzburgite at low pressure might result in silica enrichment of the melt by assimilation of orthopyroxene. Experimental tests of this hypothesis show that silica-rich liquids (56 wt %) are produced by...
1986-05 (iso8601)
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Cartwright and Longuet-Higgins (1956) describe the statistical distribution of maxima that would result
from the linear superposition of random, Gaussian waves. The distribution function depends solely upon the
relative width of the power spectrum...
1993 (iso8601)
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Field measurements of onshore and longshore velocities in the surf zone have been obtained on Martinique
Beach, Nova Scotia, for the purpose of investigating the dynamics of the infragravity band (0.003-
0.03 Hz) of the spectra. A total of35 data...
1981 (iso8601)
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In shallow water, any two waves of the same frequency are shown to produce complex patterns of
drift velocity above the sea bed. If the longshore components λ₁, λ₂ of the wave numbers of the two
waves are different, these steady flow patterns...
1982 (iso8601)
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Synchronous runup records were collected from 14 locations spaced irregularly over a 7 km stretch of
a low-slope beach. The significant runup height, herein defined as the significant vertical excursion of
water level at the shoreline, was...
1984 (iso8601)
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Wave setup and swash statistics were calculated from 154 runup time series measured on a moderately
steep beach under incident waves varying from 0.4 to 4.0 m significant wave height. When scaled by the
incident wave height, setup, swash height,...
1985 (iso8601)
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The wave-induced velocity field in the nearshore is composed of contributions from incident wind waves (f
> 0.05 Hz), surface infragravity waves (f < 0.05 Hz, lkl < (σ²/gβ) and shear waves (f < 0.05 Hz, lkl > σ²/gβ),
where ƒ is the frequency, σ =...
1991 (iso8601)
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A form of the linear, inviscid shallow water wave equation which includes alongshore uniform, but
cross-shore variable, longshore currents and bathymetry is presented. This formulation provides a
continuum between gravity waves (either leaky or...
1992 (iso8601)
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A technique is presented to remotely measure the scales and morphology of natural sandbars based
on the preferential dissipation of wind waves and swell over the crests of the bar. Photographic or
video images are recorded and statistical...
1989 (iso8601)
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The spatial and temporal variability of nearshore sand bar morphology is quantified using a unique data set
spanning 2 years. The data consist of daily time exposure images of incident wave breaking on an open coast
sandy beach which may be used...
1990 (iso8601)
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Theoretical growth rates for resonantly driven edge waves in the nearshore are
estimated from the forced, shallow water equations of motion for the case of a plane sloping bed.
The forcing mechanism arises from spatial and temporal variations in...
1997 (iso8601)
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