Browse by Archive
ScholarsArchive at Oregon State University
|
The three-dimensional (3D) double-ridge internal tide interference in the Luzon Strait in the South China
Sea is examined by comparing 3D and two-dimensional (2D) realistic simulations. Both the 3D simulations
and observations indicate the...
2014-03 (iso8601)
|
|
It is shown that the life cycles of nonlinear mesoscale eddies, a major component of low-frequency ocean
physical variability, have a characteristic structure that differs fundamentally from that which would be expected
on the basis of classical...
2014-03 (iso8601)
|
|
Influences of tidal and slower (subtidal) oceanic flows over the continental shelf and slope off Oregon are studied using a high-resolution ocean circulation model and comparative model-data analyses. The model is based on the Regional Ocean...
2014-03-12 (iso8601)
|
|
Atmospheric CO₂ records for the centennial scale cooling event 8200 years ago (8.2 ka event) may
help us understand climate-carbon cycle feedbacks under interglacial conditions, which are important for
understanding future climate, but existing...
2014-01-17 (iso8601)
|
|
Variable ocean conditions can greatly impact
prey assemblages and predator foraging in marine ecosystems.
Our goal was to better understand how a change in
ocean conditions influenced dietary niche overlap among
a suite of midtrophic-level...
2014-04 (iso8601)
|
|
Coastal upwelling in the northern California Current
varies seasonally, with downwelling in winter and upwelling
in summer, resulting in pronounced variability in
hydrography, nutrients, phytoplankton biomass, and species
composition. Winter was...
2014-03 (iso8601)
|
|
Global electromagnetic (EM) induction studies have been the focus of increasing attention
during the past few years. A primary stimulus for this interest has been increased quality,
coverage and variety of the newly available data sets especially...
2014-05 (iso8601)
|
|
Sedimentary records from the North Atlantic, instrumental in the development of modern paleo-geomagnetic concepts, show a highly variable field even during times of constant polarity. Yet, our understanding of how the magnetization is acquired in...
2014-04-04 (iso8601)
|
|
In order to evaluate the shallow stratigraphy along the southern Cascadia abyssal margin and northern California abyssal plain, CHIRP subbottom profiles capable of imaging individual turbidite beds in the upper tens of meters of the subsurface...
2014-04-21 (iso8601)
|
|
The importance of local versus distant forcing is studied for the wind driven intra-
seasonal (30-120 day) sea level anomaly (SLA) variations along the west coast of
India. Three locations on the continental slope are chosen to represent the west...
2014-03-20 (iso8601)
|
|
We present the first successful ⁸¹Kr-Kr radiometric dating of ancient polar ice. Krypton was extracted from the air bubbles in four ~350 kg polar ice samples from Taylor Glacier in the McMurdo Dry Valleys, Antarctica, and dated using Atom Trap...
2014-05-13 (iso8601)
|
|
Exploration and production of oil in the Gulf of Mexico has seen an astonishing increase since the first well was drilled in 1936. Much of the current exploration is occurring in waters greater than 5000 feet. The largest and most unprecedented...
2014-06-09 (iso8601)
|
|
The Pastos Grandes Caldera Complex (PGCC) in southwest Bolivia has produced two large-volume (≥800 km³ DRE) dacite ignimbrites from a nested caldera source over a period of 5.5 Myr. In addition to the large-volume ignimbrites, a small-volume...
2014-06-04 (iso8601)
|
|
Constraining the magma evolution and dynamics that lead to the eruption of large volume continental arc systems is fundamental to our understanding of continental crust formation. An investigation into the magmagenesis that results in the...
2014-05-29 (iso8601)
|
|
The ~1 Myr history of the Purico-Chascon volcanic complex (PCVC) records significant changes in the production and storage of magmas in the crust. At ~1 Ma activity at the PCVC initiated with the eruption of a large 80-100 km³ crystal-rich dacite...
2014-05-20 (iso8601)
|
|
A new model of long-period tidal variations in length of day is developed. The model
comprises 80 spectral lines with periods between 18.6 years and 4.7 days, and it consistently includes effects
of mantle anelasticity and dynamic ocean tides for...
2014-02 (iso8601)
|
|
To determine if a storm event (i.e., high winds, large volumes of precipitation) could
alter concentrations of Vibrio vulnificus and V. parahaemolyticus in aquacultured oysters
(Crassostrea virginica) and associated surface water and sediment,...
2014-05-07 (iso8601)
|
|
Simulations of past climates require altered
boundary conditions to account for known shifts in the Earth
system. For the Last Glacial Maximum (LGM) and subsequent
deglaciation, the existence of large Northern Hemisphere
ice sheets caused profound...
2014-03-13 (iso8601)
|
|
We describe an integrated spatially distributed hydrologic
and glacier dynamic model, and use it to investigate
the effect of glacier recession on streamflow variations
for the upper Bow River basin, a tributary of the South
Saskatchewan River,...
2014-02-27 (iso8601)
|
|
While conflict and cooperation in Central Asia are mainly focused on the larger basins
(Amu and Syr Darya) and the implementation of the agreement reached directly after
independence (1991), here an analysis of the history of water-sharing...
2013-10-18 (iso8601)
|
|
Variation in fluvial suspended sediment–discharge behavior is generally thought to be the product of changes in
processes governing the delivery of sediment and water to the channel. The objective of this study was to infer
sediment supply...
2014-06-01 (iso8601)
|
|
Few studies to date have demonstrated widespread biological impacts of ocean
acidification (OA) under conditions currently found in the natural environment.
From a combined survey of physical and chemical water properties
and biological sampling...
2014-06-22 (iso8601)
|
|
The transport and retention of zooplankton biomass in the shelf and
slope regions off Oregon were studied in June 2002. A towed undulating instrument
package was used with 2 pairs of Conductivity–Temperature–Depth (CTD) sensors, a
fluorometer and...
2014-08-04 (iso8601)
|
|
As a demonstrator for technologies for the next generation of ocean color sensors,
the Hyperspectral Imager for the Coastal Ocean (HICO) provides enhanced spatial and
spectral resolution that is required to understand optically complex aquatic...
2014-01-27 (iso8601)
|
|
The present paper describes the Variability of the American Monsoon Systems (VAMOS) Ocean–Cloud–Atmosphere–Land Study (VOCALS), an international research program focused on the improved understanding and modeling of the southeastern Pacific (SEP)...
2014-03 (iso8601)
|
