Browse by Archive
ScholarsArchive at Oregon State University
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The backscattering properties of marine phytoplankton, which are assumed to vary widely with differences in size, shape, morphology and internal structure, have been directly measured in the laboratory on a very limited basis. This work presents...
2010-07-05 (iso8601)
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See Article for Abstract.
2009-04 (iso8601)
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The Garrett–Munk (GM) spectrum continues to be a useful description of the oceanic internal wave field. However, there are several inconsistencies and ambiguities that make it difficult to use in comparing internal wave fields at different...
2002-11 (iso8601)
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Tidal mixing over a slope was explored using moored time series observations on Kaena Ridge extending northwest from Oahu, Hawaii, during the Survey component of the Hawaii Ocean Mixing Experiment (HOME). A mooring was instrumented to sample the...
2006-06 (iso8601)
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We describe the spectral analysis of temperature and velocity measurements made in the northeast Pacific as part of the Mixed Layer Experiment (MILE) and attempt to relate the observed fluctuations to internal-wave models of the upper ocean. From...
1983-02 (iso8601)
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A thermistor chain was moored below the pack ice from 50–150 m in the Arctic Ocean for five days in 1981. Oscillations in temperature are attributed to the vertical dispalcement of internal waves. The spectral shape of isotherm dispalcement is...
1985-06 (iso8601)
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We constructed an experimental apparatus that used lasers to provide the probe beams for measuring the transient absorption kinetics of bacterioplankton that contain proteorhodopsin, a microbial protein that binds retinal and is analogous to...
2007-10-10 (iso8601)
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The eastern South Pacific (ESP) oxygen minimum zone (OMZ) is a permanent hydrographic feature located directly off the coasts of northern Chile and Peru. The ESP OMZ reaches from coastal waters out to thousands of kilometers offshore, and can...
2009-11-23 (iso8601)
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This note considers the decay of a bottom-trapped freshwater plume after the causative freshwater inflow
has ceased. It is shown that shortly after the low-density inflow stops, the barotropic pressure field that it
created radiates away and the...
2010-07 (iso8601)
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It is well known that numerical simulations of freshwater discharges produce plumes that spread in the
direction opposite to that of the propagation of coastally trapped waves (the upstream direction). The lack of
a theory explaining these motions...
2010-07 (iso8601)
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The oceanic circulation near the eastern margin of the African continent is dominated by the poleward flow of the Agulhas Current. The Agulhas Current separates from the African coast near the southern tip of the continent, makes an abrupt turn to...
1996-10 (iso8601)
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This article presents a semianalytic method to investigate the properties of energy transmission across bottom topography by barotropic Rossby waves. The method is first used to revisit the analytical estimates derived from wave-matching...
2005-11 (iso8601)
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The term “downwelling currents” refers to currents with a downslope mass flux in the bottom boundary layer. Examples are the Malvinas and Southland Currents in the Southern Hemisphere and the Oyashio in the Northern Hemisphere. Although many of...
2008-11 (iso8601)
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This article describes the results of numerical experiments carried out with a general circulation ocean model to investigate the effect of the seasonal cycle of the wind forcing on the Agulhas transport. Two cases are described. The first was...
1999-02 (iso8601)
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Observations of near-inertial oscillations collected during the Ocean Storms Experiment in the northeast Pacific Ocean are compared with results from a linear, numerical model on a β plane, developed by Zervakis and Levine. A slab mixed layer...
1995-11 (iso8601)
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To understand the characteristics of sea surface height signatures of tropical instability waves (TIWs), a linearized model of the central Pacific Ocean was developed in which the vertical structures of the state variables are projected onto a set...
2005-02 (iso8601)
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See Article for Abstract.
1979-07 (iso8601)
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Seasat scatterometer and altimeter data are analyzed to investigate time-dependent Sverdrup dynamics in the Southern Ocean (40°S to 60°S) over seasonal time scales. Sverdrup dynamics are shown to be inadequate to describe the circulation in the...
1992-08 (iso8601)
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The Kalman filter is implemented and tested for a simple model of sea level anomalies in the tropical Pacific, using tide gauge data from six selected island stations to update the model. The Kalman filter requires detailed statistical assumptions...
1989-06 (iso8601)
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See Article for Abstract.
1994-10 (iso8601)
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No Abstract Available.
1990-09 (iso8601)
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Simultaneous measurements of vertical velocity fluctuations, w′, and temperature fluctuations, T′, on scales of three-dimensional turbulence yield a direct measure of the turbulent heat flux, J[subscript]q. The scales contributing most...
1990-12 (iso8601)
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The purpose of this study is to identify, characterize and quantify local, regional and remote effects of snow cover on western U.S. climate and water resources. An ensemble of predictability and sensitivity studies was made with the U.S. National...
2001-01 (iso8601)
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Leads act as windows through which solar radiation enters the upper ocean. Studies of the heat budget and ice melt require accurate parameterization of the albedo. Results from summertime measurements of albedo over leads show that under cloudy...
2001-01 (iso8601)
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We describe a new tide model for the seas surrounding Antarctica, including the ocean cavities under the floating ice shelves. The model uses data assimilation to improve its fit to available data. Typical peak-to-peak tide ranges on ice shelves...
2002-01-01 (iso8601)
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