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ScholarsArchive at Oregon State University
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We map the regional physiography and surficial lithology (Surficial Geologic Habitat or
SGH) over the continental margin of Oregon. This thesis develops, describes, and
implements an iterative interpretive method to map seafloor habitat types from...
2004-01-29 (iso8601)
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We present a spatially extensive record of dinitrogen (N₂) fixation rates and distributions
of N₂ fixing microorganisms along with the results of exogenous phosphorus (P) addition experiments
conducted during a series of cruises in the North...
2011-06-27 (iso8601)
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In this modeling study we investigate the dynamical mechanisms controlling the spreading of the Magellan Plume, which is a low-salinity tongue that extends along the Patagonian Shelf. Our results indicate that the overall characteristics of the...
2012-05-26 (iso8601)
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Coupled climate–carbon models have shown the potential for large feedbacks between climate change, atmospheric CO₂ concentrations, and global carbon sinks. Standard metrics of this feedback assume that the response of land and ocean carbon uptake...
2011-08-15 (iso8601)
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We examined the incidental
catches of American shad (Alosa
sapidissima) taken during research
cruises and in commercial and recreational
landings along the Pacific
coast of North America during over
30 years of sampling. Shad, an introduced...
2011 (iso8601)
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Better fisheries management is often given as one justification for research on improving forecasts of fish survival. However, the value gained from expected improvements in forecast skill in terms of achieving management goals is rarely...
2012-06 (iso8601)
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Isohaline coordinate analysis is used to compare the exchange flow in two contrasting estuaries, the long (with respect to tidal excursion) Hudson River and the short Merrimack River, using validated numerical models. The isohaline analysis...
2012-05 (iso8601)
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Interleaving motions on a wide, baroclinic front are modeled using a second-moment closure to represent unresolved fluxes by turbulence and salt fingering. A linear perturbation analysis reveals two broad classes of unstable modes. First are...
2012-05 (iso8601)
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It has been shown by Schlesinger and Mintz (1979) that the UCLA general
circulation model (GCM) is able to simulate the observed negative correlation
between the total amount of ozone in a vertical atmospheric column (the total ozone)
and the...
1987-08-24 (iso8601)
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The characterization of temporal and spatial distribution of sunlight is essential for understanding energy transport in natural ecosystems. Fiber-optic distributed temperature sensing (DTS) allows meter resolution measurements of temperature at...
2011-07-13 (iso8601)
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Euphotic zone depth, z[subscript]1%, reflects the depth where photosynthetic available radiation
(PAR) is 1% of its surface value. The value of z[subscript]1% is a measure of water clarity, which is
an important parameter regarding ecosystems....
2007-03-16 (iso8601)
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Ocean color remote-sensing systems require highly accurate calibration (<0.5%) for accurate retrieval of water properties. This accuracy is typically achieved by vicarious calibration which is done by comparing the atmospherically corrected...
2006-11-23 (iso8601)
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See article for abstract.
2005-02-22 (iso8601)
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One of a series of Chesapeake Outflow Plume Experiments, COPE-2, was conducted in May 1997 along the coast of Virginia/North Carolina. The objective of this experiment was to describe the coastal buoyancy jet formed by the outflow of water from...
2001-06-15 (iso8601)
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Two separate studies on the distribution of gammarid amphipods
in the bathyal and abyssal benthic environments demonstrated that
different assemblages could be found at a single depth over distances on
the order of 100 kilometers. These studies...
1976-06-07 (iso8601)
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In January-February 1971 five replicate 0.07 m² Van Veen grabs
were obtained from each of 12 stations in Arthur Harbor and nine Van
Veen grabs were obtained from two stations in nearby Bismark Strait.
The 69 grab samples yielded 78,395 individuals...
1976-07-21 (iso8601)
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The particulate and dissolved organic carbon and nitrogen data included in this report are a complete version of all data for GLOBEC cruises 1997-2004. The nutrient and chlorophyll data that correspond to this data set can be found in "Nutrient...
2006-08 (iso8601)
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In this study, we examine salinity stress tolerances of two populations of the invasive species New Zealand mud snail Potamopyrgus antipodarum, one population from a high salinity environment in the Columbia River estuary and the other from a...
2012-06 (iso8601)
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The response of already polluted marine stratocumulus to additional particles was examined by studying the clouds where two ship tracks cross. Nearly 100 such crossings were collected and analyzed using Terra and Aqua Moderate Resolution Imaging...
2012-06 (iso8601)
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Marine magnetic data from the northern Yucatan continental margin were used to
obtain the radially-averaged power-density spectra (RAPDS) of 34 grids, each with
dimensions of 128 by 128 km, overlapping 50 percent. Depths to the tops of three...
1990-09-05 (iso8601)
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Spatially isolated patches of soil located in Taylor Valley, McMurdo Dry Valleys, Antarctica, are sites of elevated salt content and soil moisture. During Antarctic spring, in the absence of snow melt, visibly wet (reduced albedo) patches of soil...
2012-03-06 (iso8601)
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The major evolution of the National Center for Atmospheric Research Community Atmosphere Model (CAM) is used to diagnose climate feedbacks, understand how climate feedbacks change with different physical parameterizations, and identify the...
2012-03-01 (iso8601)
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See article for abstract.
1998-11-15 (iso8601)
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Remotely sensed sea surface temperature (SST) and a model originally developed for Cap Blanc, northwest Africa [Dugdale et al., 1989], are used to estimate new production (i.e., nitrate uptake, in the sense of Dugdale and Goering [1967]) for the...
1997-04-15 (iso8601)
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