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ScholarsArchive at Oregon State University
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In this thesis, data collected during the Dynamics of the Madden Julian Oscillation (DYNAMO) field campaign, conducted in the Indian Ocean in Fall of 2011, is used to compute heat fluxes at the air-sea interface by evaluating eddy covariances and...
2014-08-19 (iso8601)
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Marine sediments around volcanic islands contain an archive of volcaniclastic deposits, which
can be used to reconstruct the volcanic history of an area. Such records hold many advantages over often
incomplete terrestrial data sets. This includes...
2014-07-25 (iso8601)
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See article for Abstract.
2014-06-10 (iso8601)
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The deep sea is often viewed as a vast, dark, remote,
and inhospitable environment, yet the deep ocean and
seafloor are crucial to our lives through the services that
they provide. Our understanding of how the deep sea functions
remains limited,...
2014-07-29 (iso8601)
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Freshwater provided from river discharge influences the dynamics and circulation of most continental shelves around the world. It has profound effects on the transport and fate of materials and substances originated from rivers and estuaries, as...
2014-09-12 (iso8601)
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The Caribbean Plateau is an oceanic large igneous province (CLIP). A widely accepted model for LIP petrogenesis proposes that these large bodies of igneous rock are formed by decompression melting associated with upwelling mantle plume heads...
2014-09-08 (iso8601)
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Wind-driven coastal upwelling brings subsurface water onto the central-Oregon shelf after the spring transition each year. This cold and salty source water is oxygen-poor, yet above the hypoxic threshold, dissolved oxygen < 1.4 ml l⁻¹. Once on the...
2014-09-04 (iso8601)
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For a key season in the annual water cycle (L[subscript s]~120°) a mesoscale model is used to study atmospheric water vapor and water ice clouds in the northern polar region of Mars. Model results at high-resolution (15 km) allow the examination...
2014-07-15 (iso8601)
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The low-level baroclinic eddy activity seen in the NASA Ames Mars General Circulation Model (MGCM) for simulations under three annual dust cycles are characterized. Simulations were conducted with both radiatively active and radiatively inert...
2014-08-18 (iso8601)
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Paleoclimate archives have revealed abrupt climate events that are superimposed on more gradual climate changes throughout the last glacial and deglacial periods. The underlying causes of such rapid climate changes are still poorly understood, but...
2014-09-19 (iso8601)
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The last decade has seen considerable progress in the development of algorithms for nearshore bathymetry estimation based on celerity observations of ocean surface waves. This work has evolved into a robust algorithm called cBathy which produces...
2013 (iso8601)
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This is a case study of the cooperative development of an ocean condition
forecasting tool by Oregon commercial fishermen, Oregon State University (OSU)
scientists, and OSU student software engineers. Ocean condition forecasting models
developed...
2014-09-16 (iso8601)
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The state of the knowledge for fault behavior in the northwest Himalaya and California varies dramatically. In the Pakistan and Kashmir Himalaya, few data constrain the role that individual active faults play in accommodating Indo-Eurasian...
2014-08-15 (iso8601)
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The relative lability, elemental stoichiometry, and remineralization rates of various
particulate organic matter (POM) substrates by natural heterotrophic marine microorganisms was
investigated. POM was harvested from laboratory cultures of a...
2014-07-20 (iso8601)
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Pressure differences across topography generate a form drag that opposes the flow in the water column, and
viscous and pressure forces acting on roughness elements of the topographic surface generate a frictional drag
on the bottom. Form drag and...
2014-09 (iso8601)
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A major achievement in research supported by the Kluane Lake Research Station was the recovery, in 2001–02,
of a suite of cores from the icefields of the central St. Elias Mountains, Yukon, by teams of researchers from Canada, the
United States,...
2014-01-17 (iso8601)
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Early Holocene summer warmth drove dramatic Greenland ice sheet (GIS) retreat. Subsequent
insolation-driven cooling caused GIS margin readvance to late Holocene maxima, from which ice margins
are now retreating. We use ¹⁰Be surface exposure ages...
2014-08-16 (iso8601)
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Resazurin (Raz) and its reaction product resorufin
(Rru) have increasingly been used as reactive tracers to quantify
metabolic activity and hyporheic exchange in streams.
Previous work has indicated that these compounds undergo
sorption in stream...
2014-08-25 (iso8601)
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Coastal environments are characterized by complex feedbacks between flow, sediment transport, and morphology, often resulting in the formation of nearshore sandbars. In many locations, such as Hasaki (Japan), the Netherlands, and the Columbia...
2014-04 (iso8601)
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Climate warming is projected to affect forest water yields but the effects are expected to vary. We investigated how forest
type and age affect water yield resilience to climate warming. To answer this question, we examined the variability in...
2014-10 (iso8601)
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Alaska fishing charter service owners are seeking an increased share of halibut fish resources be reserved for the recreational guided angler sector. An organization representing the owners who fish in the International Pacific Halibut Commission...
2013-08 (iso8601)
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Cognitive
and
other
neural
processes
emerge
from
the
interactions
be-
tween
neurons.
Major
advances
have
been
made
in
studying
networks
in
which
the
interac-
fions
occur
instantaneously
by
means
ofgraded
synapses
(Guckenheimer
and
Rowat,
I
997)....
1998 (iso8601)
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Ungulate behavior has been studied extensively but direct observation of free-ranging animals over long periods of time and large geographic areas is often prohibitively difficult. Improved technology, such as GPS collars fitted with...
2013-06-24 (iso8601)
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We examined the multivariate life-history trajectories of age 0 and age 1 female
Gambusia affinis to determine relative effects of age-based and environment-based
cues on reproductive investment. Age 0 females decreased reproductive
investment...
2014-05 (iso8601)
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Relieving phosphorus loading is a key management tool for controlling Lake Erie eutrophication. During the
1960s and 1970s, increased phosphorus inputs degraded water quality and reduced central basin hypolimnetic
oxygen levels which, in turn,...
2014-06 (iso8601)
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