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ScholarsArchive at Oregon State University
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Earth's climate and the concentrations of the atmospheric greenhouse gases carbon dioxide (CO2) and nitrous oxide (N2O) varied strongly on millennial timescales during past glacial periods. Large and rapid warming events in Greenland and the North...
2008-11-20 (iso8601)
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The subaerial beach, composed of sand dunes and the foreshore, provides a natural buffer zone between vulnerable land and the dissipation of storm wave energy due to wave breaking. The natural beauty of this region is attractive to people, and as...
2011-01-12 (iso8601)
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This technical report summarizes the
results of a three year study of the zooplankton
living in the nearshore zone off
Newport, Oregon. The sampling program was
part of the Early Life History (ELH) project
of the Oregon State University Sea Grant...
1976-06 (iso8601)
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Fluctuations of the low frequency sound field in the presence of
an internal solitary wave packet during the Shallow Water ’06 experiment are
analyzed. Acoustic, environmental, and on-board ship radar image data were
collected simultaneously...
2009-09 (iso8601)
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Twelve days of microstructure measurements at the equator (140°W) in November 1984 showed a
surprisingly strong effect of both the daily cycle of solar heating and wind on mixing in the upper ocean.
Because of limited variations in atmospheric...
1989-02-15 (iso8601)
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Varied observations over Oregon’s continental shelf illustrate the
beauty and complexity of geophysical flows in coastal waters. Rapid, creative, and
sometimes fortuitous sampling from ships and moorings has allowed detailed looks
at boundary...
2008-12 (iso8601)
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An experimental investigation of a two·dimensional turbulent jet in a quiescent environment has been
carried out to determine the structural characteristics of the outer, intermittent turbulent motion. An
overall picture of this motion was deduced...
1979-07 (iso8601)
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This dissertation investigates the dynamics of the tidally modulated outflow from the Columbia River mouth using high resolution measurements of velocity, density and turbulent microstructure. At high tide, flow through the river mouth reverses...
2011-01-27 (iso8601)
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This study was conducted to determine the composition and size of prey consumed by northern fur seals (Callorhinus ursinus) in the eastern Bering Sea. Eighty three northern fur seals were collected in the summer and fall of 1981, 1982, and 1985...
1988-12-16 (iso8601)
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Preliminary results are presented from an analysis of mid-frequency
acoustic transmission data collected at range 550 m during the
Shallow Water 2006 Experiment. The acoustic data were collected on a vertical
array immediately before, during, and...
2008-09 (iso8601)
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Since the end of the Cold War,
the US Navy has had an increasing interest
in continental shelves and slopes as
operational areas. To work in such areas
requires a good understanding of ocean
acoustics, coastal physical oceanography,
and, in the...
2007 (iso8601)
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Csanady (1998) presents solutions for time-dependent wind-driven flow in a barotropic
coastal ocean. We disagree with two of his three boundary condition options and wish to
clarify the origin of the non-wavelike aspect of the flow
1998 (iso8601)
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Project CROOS, Collaborative Research on Oregon Ocean Salmon, is a unique partnership of scientists and commercial fishermen that combines catch location data with stock assignments obtained from genetic micro-satellite analysis to investigate the...
2011-01-19 (iso8601)
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Rates of benthic O₂ exchange are important measurements for determining organic matter remineralization, and can shed light on factors driving biogeochemical processes in coastal environments. Measurement of in situ O₂ consumption and production...
2011-01-24 (iso8601)
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Teleseismic body waves from large earthquakes are used to study the downdip
geometry of continental normal faults in the Aegean. Waveform modeling technique~ together
with rigorous statistical tests are applied to put firm bounds on the amount of...
1996-02-10 (iso8601)
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The Explorer region offshore western Canada is a tectonically complex area
surrounded by the Pacific, North America, and Juan de Fuca plates. Existing tectonic
models for the region differ fundamentally. Proposed plate configurations range from...
2002 (iso8601)
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The Blanco Transform Fault Zone (BTFZ) forms the ~350 km long Pacific–Juan de
Fuca plate boundary between the Gorda and Juan de Fuca ridges. Nearby broadband
seismic networks provide a unique framework for a detailed, long-term seismotectonic...
2008 (iso8601)
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We use regional broadband seismograms to obtain
seismic moment-tensor solutions of the two September 20, 1993,
Mw =6, Klamath Falls, Oregon earthquakes, their foreshock and
largest aftershocks (MD>3.5). Several sub-groups with internally...
1995-01-15 (iso8601)
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Discrete layers of phytoplankton and zooplankton were observed over the Oregon
continental shelf in summer and fall of 2001 and summer 2002 using optical and
acoustical technologies and a pump sampling system. Layers of phytoplankton had steep...
2004-06-04 (iso8601)
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Bi-weekly sampling of zooplankton and environmental parameters was conducted along a cross-shelf transect off the coast of Newport, OR, USA (44.65°N) from 1996 to present. Results have demonstrated the feasibility of using copepod community...
2011-03-23 (iso8601)
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