Browse by Archive
ScholarsArchive at Oregon State University
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The Hi-CLIMB broadband seismic experiment (2002-2005) operated 233 stations along an 800 km long north-south line from the Himalayan foreland into the central Tibetan Plateau and in a 350x350 km sub-array within southern Tibet and central and...
2015-03-20 (iso8601)
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Excess NO₃⁻ in streams is a growing and persistent problem for both inland and coastal ecosystems, and denitrification is the primary removal process for NO₃⁻. Hyporheic zones can have high denitrification potentials, but their role in reach- and...
2015-03 (iso8601)
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Groundwater–surface-water (GW-SW) interactions in streams are difficult to quantify because of heterogeneity
in hydraulic and reactive processes across a range of spatial and temporal scales. The challenge of
quantifying these interactions has led...
2015-03 (iso8601)
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Vegetation can protect communities by reducing nearshore wave height and altering sediment
transport processes. However, quantitative approaches for evaluating the coastal protection services, or benefits,
supplied by vegetation to people in a...
2015-01 (iso8601)
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Shipboard current measurements in the equatorial Indian Ocean in October and November of
2011 revealed oscillations in the meridional velocity with amplitude ~0.10 m/s. These were clearest in a layer
extending from ~300 to 600 m depth and had...
2015-01-09 (iso8601)
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The Pebble porphyry Cu-Au-Mo deposit in Alaska is one of the world's largest Cu-Au mineral resources. Late Cretaceous magmatic evolution in the Pebble district culminated with the intrusion of the Kaskanak Batholith and associated porphyry...
2015-03-10 (iso8601)
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Coastal foredunes protect lives, infrastructure, and ecosystems during severe storms. A range of
approaches, ranging from simple (e.g., geometric) to complex (e.g., process-based) predictive
models, have been developed to quantify overtopping and...
2014-11 (iso8601)
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Various ocean-climate models driven by increased
greenhouse gases and higher temperatures predict a
decline in oceanic dissolved oxygen (DO) as a result
of greater stratification, reduced ventilation below the
thermocline, and decreased solubility...
2015-03 (iso8601)
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The reason for the initial rise in atmospheric
CO₂ during the last deglaciation remains unknown. Most recent
hypotheses invoke Southern Hemisphere processes such
as shifts in midlatitude westerly winds. Coeval changes in
the Atlantic meridional...
2015-02-05 (iso8601)
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The West Antarctic Ice Sheet Divide (WAIS Divide, WD) ice core is a newly drilled, high-accumulation
deep ice core that provides Antarctic climate records of
the past ~68 ka at unprecedented temporal resolution. The
upper 2850 m (back to 31.2 ka...
2015-02-05 (iso8601)
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A thermal infrared (TIR) camera is used to remotely sense the foliage temperature in a mountain valley. The foliage temperature is used as a proxy for air temperature and can be used to study and map the dynamics of the nocturnal, weak-wind...
2015-03-12 (iso8601)
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In the past two decades, occurrences of summertime upwelling-driven low dissolved oxygen (DO) events, or hypoxia, have increased along the northeast Pacific coast. If hypoxic events are severe enough to cause marine species mortality, the areas...
2015-02-04 (iso8601)
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The goal of this thesis is to advance the methodology and thought regarding the transferability of ecological estimates of ecosystem services. Conceptually and in practice, ecological estimate transfer parallels economic benefit transfer in...
2015-03-19 (iso8601)
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Seep characteristics at different geologic settings are the subject of this review primarily based on results of the
Research Consortium SFB 574. Criteria are drawn from examples on the erosive convergent margin off Costa Rica,
the accretionary...
2014-10 (iso8601)
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Authigenic carbonates and chemosymbiotic biota are archives of seepage 1 history and record paleo-environmental conditions at seep sites. Based on mineral and stable isotope compositions and U/Th-isotope
systematics of seep carbonates and...
2014-10 (iso8601)
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Budburst is a key adaptive trait that can help us understand how plants respond to a changing
climate from the molecular to landscape scale. Despite this, acquisition of budburst
data is constrained by a lack of information at the plant scale on...
2015-03-10 (iso8601)
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Hydrate Ridge has the distinction of hosting the first documented subduction-driven cold
seep system that supports chemosynthetic life by Anaerobic Oxidation of Methane as well
as the most widely researched methane hydrate setting at any active...
2014-07-28 (iso8601)
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Ocean acidification is a global, long-term problem whose ultimate solution requires carbon dioxide reduction at a scope and
scale that will take decades to accomplish successfully. Until that is achieved, feasible and locally relevant adaptation...
2015-03 (iso8601)
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IODP Expedition 340 successfully drilled a series of sites offshore Montserrat, Martinique and
Dominica in the Lesser Antilles from March to April 2012. These are among the few drill sites gathered
around volcanic islands, and the first scientific...
2015-02-11 (iso8601)
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Over 5000 aircraft eddy-covariance measurements from four different aircraft in nine different experiments
are used to develop a simple model for the friction velocity over the sea. Unlike the widely used Coupled
Ocean–Atmosphere Response...
2015-03 (iso8601)
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To investigate the dynamics of the Atlantic meridional overturning circulation (AMOC) on
timescales longer than the observational records, model-data comparisons of past AMOC variability
are imperative. However, this remains challenging because of...
2015-02-19 (iso8601)
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The Emigrant Pass volcanics (EPV) are a 38.3 to 36.4 Ma calc-alkaline volcanic center that erupted andesite and dacite, and a late series of felsic dikes along the south flank of the Carlin gold district in north-central Nevada. The EPV includes...
2015-04-24 (iso8601)
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West Mata is a 1200 m deep submarine volcano where explosive boninite eruptions were observed
in 2009. The acoustic signatures from the volcano’s summit eruptive vents Hades and Prometheus were
recorded with an in situ (~25 m range) hydrophone...
2015-03-16 (iso8601)
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We apply GENMOM, a coupled atmosphere–ocean climate model, to simulate eight equilibrium time
slices at 3000-year intervals for the past 21,000 years forced
by changes in Earth–Sun geometry, atmospheric greenhouse
gases (GHGs), continental ice...
2015-03-17 (iso8601)
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Storm events can pulse nutrients and carbon from soils and provide an important
subsidy to food webs in oligotrophic streams and lakes. Bacterial nutrient limitation
and the potential response of stream aquatic bacteria to storm events was...
2015-03-31 (iso8601)
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