Browse by Archive
ScholarsArchive at Oregon State University
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The sensitivity of model-produced time-dependent wind-driven circulation on the
continental shelf to the turbulent closure scheme employed is studied with a twodimensional
approximation (variations across-shelf and in depth) using the Princeton...
2003 (iso8601)
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We simulated the erosion and accretion of a natural beach using a wave-resolving
eddy-diffusive model of water and suspended sediment motion in the bottom boundary
layer. Nonlinear advection was included in this one-dimensional (vertical profile)...
2004 (iso8601)
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Time-dependent, three-dimensional, upwelling circulation on the continental shelf off
the Oregon coast is studied using a primitive equation numerical model. A limited area
domain with a high-resolution curvilinear grid is utilized. The response...
2005-10-20 (iso8601)
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An Eulerian analysis for wave forcing of three-dimensional (3D) wave-averaged mean
circulation in the surf zone is presented. The objective is to develop a dynamically
consistent formulation for applications in a 3D primitive equation model. The...
2007-08-31 (iso8601)
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A three-dimensional primitive-equation model for application to the nearshore surf
zone has been developed. This model, an extension of the Princeton Ocean Model (POM),
predicts the wave-averaged circulation forced by breaking waves. All of the...
2007-08-31 (iso8601)
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The linear stability of a coastal transition zone (CTZ) jet is analyzed using a six-layer quasi-geostrophic model with observed basic state velocity profiles. The velocity profiles are obtained from objectively analyzed hydrographic and acoustic...
1991 (iso8601)
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Knowledge of the physical oceanography of continental shelves has increased tremendously in recent years, primarily as a result of new current and hydrographic measurements made in locations where no comparable measurements existed previously. In...
1983 (iso8601)
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We present two profiles of collocated single-channel seismic reflection and heat flow determinations across Hawaiian flexural moat: one north of Oahu and the other north of Maro Reef. Seismic reflection data are used as an aid in determining depth...
2000-09-10 (iso8601)
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We perform numerical simulations of buoyancy-driven, pore fluid flow in the
Hawaiian archipelagic apron and underlying oceanic crust in order to determine the extent to
which heat redistributed by such flow might cause conductive heat flow...
2000-09-10 (iso8601)
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Temperature-depth data from six boreholes in western Utah and nine boreholes in
southeastern Utah are reanalyzed for evidence of ground surface temperature (GST)
histories. We invert the temperature-depth data using the functional space inverse...
1998-04-10 (iso8601)
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Long-period ground surface temperature variations contained in borehole
temperature-depth profiles form a complementary climate change record to high-frequency,
but noisy surface air temperature (SAT) records at weather stations. We illustrate...
1998-04-10 (iso8601)
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We construct a mid-latitude (30° – 60° N) reduced
temperature-depth profile from a global borehole temperature
database compiled for climate reconstruction. This
reduced temperature profile is interpreted in terms of past
surface ground...
2001 (iso8601)
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Temperature profiles from boreholes on the Colorado Plateau of southeastern Utah
have been examined for evidence of climate change. Because these boreholes penetrate layered
sedimentary rocks with different thermal conductivities, Bullard plots...
1995-04-10 (iso8601)
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We present thermal models of the 24 Ma Cocos plate
subducting under the Caribbean plate at the Nicoya
Peninsula, Costa Rica. Our modeling incorporates the effect
of hydrothermal cooling of the seafloor and the absence
of an accretionary prism....
2002 (iso8601)
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The southern portion of the Kodiak-Bowie seamonnt chain in the southeastern
Gulf of Alaska presents a unique opportunity to investigate loading on young oceanic
lithosphere. Oceanic lithosphere younger than 25 Ma is loaded both by sediments in a...
1994-05-10 (iso8601)
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In the North Atlantic, cold, relatively salty water sinks in the icy Labrador and Greenland seas, forming North Atlantic Deep Water (NADW). This circulates through the global ocean, driving ocean overturning and global heat transport and, thus,...
2006-03-28 (iso8601)
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We present the first comprehensive investigation of the concentrations, fluxes and sources of aerosol trace elements over the Gulf of Aqaba. We found that the mean atmospheric concentrations of crustally derived elements such as Al, Fe and Mn...
2008-03-06 (iso8601)
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We measured iron concentrations off the Oregon coast in spring (May–June) and
summer (August) of 2001 as part of the Coastal Ocean Advances in Shelf Transport
(COAST) program. Dissolvable and total dissolvable iron levels in surface waters were...
2005-09-09 (iso8601)
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The relationship between iron and nitrate concentrations was examined off the coast of
Oregon during the upwelling season. Surface Fe and N (nitrate + nitrite) concentrations
measured underway by flow injection analysis ranged from <0.3 to 20 nmol...
2002-10-25 (iso8601)
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Sonar techniques were used to quantitatively observe foraging predators and their prey
simultaneously in three dimensions. Spinner dolphins foraged at night in highly coordinated groups
of 16–28 individuals using strict four-dimensional patterns...
2008 (iso8601)
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The biosonar system of dolphins and porpoises has been studied for about 5 decades and much has
been learned [Au,W.W. L. )1993). The Sonar of Dolphins (Springer, New York)]. Most experiments
have involved human-made targets; little is known about...
2009 (iso8601)
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Bacteria and algae isolated from a wastewater oxidation pond were inoculated onto opposing surfaces of
double-layer agar plates (Lutri plates) to determine the usefulness of such plates for studying microbial
interactions. The altered growth...
1985-12 (iso8601)
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The copepod Calanus finmarchicus is the most important and biomass dominant mesozooplankter in the temperate-boreal North Atlantic. C. finmarchicus has an overwintering phase, termed diapause, during which it descends to great depths (300-2000m)...
2010-06-04T21:44:10Z (iso8601)
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Temporal variations in surface ground temperature impart a signal to the subsurface thermal regime that is captured in borehole temperature-depth profiles. Seventy temperature-depth profiles in India, located between 12° and 28°N, are analyzed to...
2002 (iso8601)
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