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ScholarsArchive at Oregon State University
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Predatorprey interactions are a primary structuring force vital to the resilience of marine communities and sustainability of the worlds oceans. Human influences on marine ecosystems mediate changes in species interactions. This generality is...
2011-12 (iso8601)
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Climate changes in the Pacific Northwest, USA, may cause both retreat of alpine glaciers and increases in the frequency and magnitude of storms delivering rainfall at high elevations absent significant snowpack, and both of these changes may...
2012-04 (iso8601)
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The Hyperspectral Imager for the Coastal Ocean (HICO) presently onboard the International Space Station (ISS) is an imaging spectrometer designed for remote sensing of coastal waters. The instrument is not equipped with any onboard spectral and...
2012-05-10 (iso8601)
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We show that the geometry of motions in atmospheric boundary-layer time series exhibits considerable independence from scale in spite of changing physics. The scale-independence of structure shapes is shown by using a simple technique to extract...
2012-05-10 (iso8601)
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In the existing 276 international river basins, the increase in water variability projected by most climate change scenarios
may present serious challenges to riparian states.This research maps the institutional resilience to water variability in...
2012-01 (iso8601)
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Analytical challenges in obtaining high quality measurements of rare earth elements (REEs) from small pore fluid volumes have limited the application of REEs as deep fluid geochemical tracers. Using a recently developed analytical technique, we...
2012-01-06 (iso8601)
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The localized impact of blooms of the mixotrophic ciliate Myrionecta rubra in the Columbia River estuary during 2007-2010 was evaluated with biogeochemical, light microscopy, physiological, and molecular data. M. rubra affected surrounding...
2012-02-29 (iso8601)
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Deciphering the evolution of global climate from the end of the Last Glacial Maximum approximately 19 ka to the early Holocene 11 ka presents an outstanding opportunity for understanding the transient response of Earth's climate system to external...
2012-02-13 (iso8601)
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Widespread stratocumulus clouds were observed on nine transects from seven research cruises to the southeastern tropical Pacific Ocean along 20°S, 75°–85°W in October–November of 2001–08. The nine transects sample a unique combination of synoptic...
2012-12-15 (iso8601)
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We review and synthesize the geologic record that
constrains the sources of sea level rise and freshwater discharge
to the global oceans associated with retreat of ice
sheets during the last deglaciation. The Last Glacial Maximum
(~26–19 ka) was...
2012-12-22 (iso8601)
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In this report, I examine the process of establishing marine reserves and marine
protected areas both from a national and a state perspective. In order to do so, I have
investigated the implementation process currently underway in Oregon....
2012-12-10 (iso8601)
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The ocean accommodates a wide variety of uses that are separated by time of day, season,
location, and zones. Conflict can and does occur, however, when two or more groups wish to use
the same space at the same time in an exclusive manner. The...
2012 (iso8601)
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Equilibrium climate sensitivity of the Community Climate System Model, version 4 (CCSM4) is 3.20 degrees C for 1 degrees horizontal resolution in each component. This is about a half degree Celsius higher than in the previous version (CCSM3). The...
2012-05 (iso8601)
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The range in the projections of future climate warming can be attributed to the inherent uncertainty in the representation of climate model parameters and processes. In this study, we assess the effect of uncertainty in climate sensitivity and...
2012 (iso8601)
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The early Pliocene warm phase was characterized by high sea surface temperatures and a deep thermocline in the eastern equatorial Pacific. A new hypothesis suggests that the progressive closure of the Panamanian seaway contributed substantially to...
2012-02-01 (iso8601)
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We determine rates of gross photosynthetic O₂ production (GOP) and net community O₂ production (NCP) using the triple oxygen isotope and O₂/Ar approach on two spring and two late summer meridional transects of the NE Pacific. Observed GOP and NCP...
2012-05-15 (iso8601)
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Temperature is a fundamentally important driver of ecosystem processes in streams. Recent warming of terrestrial climates around the globe has motivated concern about consequent increases in stream temperature. More specifically, observed trends...
2012-05-16 (iso8601)
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We present a novel approach based on fibre-optic distributed temperature sensing (DTS) to measure the two-dimensional thermal structure of the surface layer at high resolution (0.25 m, ≈ 0.5 Hz). Air temperature observations obtained from a...
2012-02 (iso8601)
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To maximize the utility of research to decisionmaking, especially given limited financial resources, scientists must set priorities for their efforts.
We present a list of the top 40 high-priority, multidisciplinary research questions directed...
2011-04 (iso8601)
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The importance of spatial pattern in ecosystems has long been recognized. However,
incorporating patchiness into our understanding of forces regulating ecosystems has proven
challenging. We used a combination of continuously sampling moored...
2012-10-23 (iso8601)
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Spatial coherence between predators and prey has rarely been observed in pelagic marine ecosystems. We used measures of the environment, prey abundance, prey quality, and prey distribution to explain the observed distributions of three...
2013-01-03 (iso8601)
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Well-functioning food webs are fundamental for sustaining rivers as ecosystems and maintaining associated aquatic and terrestrial communities. The current emphasis on restoring habitat structure-without explicitly considering food webs-has been...
2012-11-28 (iso8601)
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In 2004-2005, 2007 and 2009, three major drought disasters occurred in Guangdong
Province of southern China, which caused serious economic losses. Hence, it has recently become
an important research subject in China to monitor surface soil...
2012-08-16 (iso8601)
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