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ScholarsArchive at Oregon State University
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Located approximately 360 nm off the coast of Chile there is a disjoint realm of two small
oceanic islands systems, the Juan Fernández and the Desventuradas archipelago. Currently the local economy
of the islands is almost exclusively supported by...
2012 (iso8601)
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In this study a model system consisting of the three-dimensional General Estuarine Transport Model (GETM) and the third generation wind wave model SWAN was developed. Both models were coupled in two-way mode. The effects of waves were included...
2013-10 (iso8601)
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Abstract: A series of 23 thin, mostly mud-silt turbidites are found interspersed between larger, well-dated and regionally correlated paleoseismic sandy turbidites that extend along most of the Cascadia margin, northwestern United States....
2013-07-23 (iso8601)
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Large river basins integrate the signal of water from atmospheres to oceans. Climate change is
widely expected to alter streamflow and potentially disrupt water management systems. We
tested the ecological resilience -- capacity of headwater...
2013-06-20 (iso8601)
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Lipid classes, fatty acids (FAs), and stable carbon isotopes of FAs were used to investi-
gate dietary sources of organic carbon for juvenile Atlantic cod
Gadus morhua
during settlement into
eelgrass
Zostera marina
. Primary producers, epibenthic...
2009-07-02 (iso8601)
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The seasonality of sea surface temperatures (SST) estimated from the alkenone-U[superscript K’]₃₇ index has been a debated issue since the development of the proxy. Using a compilation of
sediment trap time series data from 34 sampling locations,...
2013-07-15 (iso8601)
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The main purpose of this report was to draw together in one place, for the first time, all
available information on trace contaminant levels in sediment, water, and biota from Oregon in
the hope that sufficient data could be gathered to identify...
1989-03 (iso8601)
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To assist with risk-assessment with deepwater and ultra-deepwater prospects for offshore energy extraction as well as provide a useful tool for oil spill response, a spatially-explicit model was developed for comprehensive simulations of a blowout...
2013-09-13 (iso8601)
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See Article for Abstract.
2013-09-06 (iso8601)
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Analysis of observations and sensitivity experiments with a new three-dimensional global model of stable carbon isotope cycling elucidate processes that control the distribution of delta C-13 of dissolved inorganic carbon (DIC) in the contemporary...
2013-09-04 (iso8601)
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A sharp temperature front, oriented along the south-west corner of the leading edge of a Tropical Instability Wave (TIW) warm trough, was encountered at 0°N, 140°W on November 2, 2008 and detected by a 0.45°C increase in SST that occurred over 7...
2013-09-30 (iso8601)
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We investigated the use of output from Bayesian stable isotope mixing models as constraints for a linear
inverse food web model of a temperate intertidal seagrass system in the Marennes-Oléron Bay, France.
Linear inverse modeling (LIM) is a...
2013-08-31 (iso8601)
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The Rocknest aeolian deposit is similar to aeolian features analyzed by the Mars Exploration Rovers (MERs) Spirit and Opportunity. The fraction of sand <150 micrometers in size contains ~55% crystalline material consistent with a basaltic heritage...
2013-09-27 (iso8601)
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Abstract: The ChemCam instrument, which provides insight into martian soil chemistry at the submillimeter scale, identified two principal soil types along the Curiosity rover traverse: a fine-grained mafic type and a locally derived,...
2013-09-27 (iso8601)
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The effect of non-zero, but small, viscosity and diffusivity on the marginal stability
of a stably stratified shear flow is examined by making perturbations around the
neutral solution for an inviscid and non-diffusive flow. The results apply to...
2013-08-15 (iso8601)
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Abstract: Significant declines in spring Northern Hemisphere (NH) snow cover extent (SCE) have been observed over the last five decades. As one step toward understanding the causes of this decline, an optimal fingerprinting technique is used to...
2013-09 (iso8601)
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In the productive central-Oregon coastal upwelling environment, wind-driven upwelling, tides, and topographic effects vary across the shelf, setting the stage for varied biogeochemical responses to physical drivers. Current, temperature, salinity,...
2013-10-02 (iso8601)
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The exchange of carbon on earth is one of the fundamental processes that sustains life and regulates climate. Since the onset of the Industrial Revolution, the burning of fossil fuels and anthropogenic land conversion have altered the carbon...
2013-10-08 (iso8601)
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A three-part algorithm is described and tested to provide robust bathymetry maps based solely on long time series observations of surface wave motions. The first phase consists of frequency-dependent characterization of the wave field in which...
2013-05-22 (iso8601)
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We investigate the momentum balance in the surf zone, in a setting which is weakly varying in the alongshore direction. Our focus is on the role of nonlinear advective terms. Using numerical experiments, we find that advection tends to counteract...
2013-05-09 (iso8601)
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The semidiurnal mode-1 internal tide receives 0.1-0.3 TW from the surface tide and is capable of propagating across ocean basins. The ultimate fate of mode-1 energy after long-distance propagation is poorly constrained by existing observations and...
2013-09-05 (iso8601)
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We document effects of postfire forest conditions on snow accumulation, albedo, and ablation in the Oregon Cascades. We measured snow water equivalent, solar radiation, snow albedo, and snowpack surface debris at a pair of burned and unburned...
2013-09-10 (iso8601)
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To test the utility of otolith chemical composition as a tool for determining the natal stream of origin for salmon, we examined water chemistry and otoliths of juvenile and adult Chum Salmon Oncorhynchus keta and Coho Salmon O. kisutch from three...
2013-09-02 (iso8601)
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High-resolution (km in space and hourly in time) surface currents observed by an array of high-frequency radars off Oregon are analyzed to quantify the decorrelation time and length scales of their near-inertial motions. The near-inertial surface...
2013-07-31 (iso8601)
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