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ScholarsArchive at Oregon State University
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In October 2007 the NOAA ship Ronald H. Brown sailed southward within 300 km of the coast of Ecuador and Peru, sampling surface meteorology, air–sea turbulent and radiative fluxes, cloud properties, and upper-air soundings from the equator to...
2009-01 (iso8601)
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A depth-dependent boundary layer lapse rate was empirically deduced from 156 radiosondes released during six month-long research cruises to the southeast Pacific sampling a variety of stratocumulus conditions. The lapse-rate dependence on boundary...
2009-09 (iso8601)
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Warmer SST and more rain in the Northern Hemisphere are observed year-round in the tropical eastern Pacific with southerly wind crossing the equator toward the atmospheric heating. The southerlies are minimal during boreal spring, when two...
2008-06 (iso8601)
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An analytical two-layer model consisting of a time-dependent stratified
boundary layer topped by stratified free flow is developed in order
to study atmospheric boundary layer production of vertical motion. To
avoid use of a constant eddy...
1979-05-30 (iso8601)
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During boreal summer and fall, there is a strong southerly boundary layer flow across the equator into the east Pacific intertropical convergence zone (ITCZ). The modulation of this flow on synoptic to seasonal time scales is studied using an...
2005-12 (iso8601)
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The tropical Pacific Ocean is a climatically important region, home to El Niño and the Southern Oscillation. The simulation of its climate remains a challenge for global coupled ocean–atmosphere models, which suffer large biases especially in...
2007-04 (iso8601)
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The midsummer drought (MSD) is a diminution in rainfall experienced during the middle of the rainy season in southern Mexico and Central America, as well as in the adjacent Caribbean, Gulf of Mexico, and eastern Pacific seas. The aim of this paper...
2007-10 (iso8601)
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A coupled ocean–atmosphere regional model suggests a mechanism for formation of a sharp sea surface temperature (SST) front north of the equator in the eastern Pacific Ocean in boreal summer and fall. Meridional convergence of Ekman transport at...
2007-06 (iso8601)
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The effectiveness of the passive anti-roll tank system aboard
the R/V YAQUINA was determined. Measurements of ship roll,
effective waveslope and tank water transfer were analyzed using a
systems analysis technique. Time series of the inputs and...
1970-07-15 (iso8601)
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The thesis examines the applicability of a two-dimensional flow
acceleration model to describe a terrain-induced flow perturbation as
measured at Yaquina Head on the central Oregon coast. The geometry of
Yaquina Head together with the upstream...
1978-05-05 (iso8601)
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The Taylor–Goldstein (T–G) equation is extended to include the effects of small-scale
turbulence represented by non-uniform vertical and horizontal eddy viscosity and
diffusion coefficients. The vertical coefficients of viscosity and diffusion,...
2012-03-25 (iso8601)
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In this paper, we present an approach to extracting mineralogic information from thermal infrared (TIR) spectra that is not based on an input library of pure mineral spectra nor tries to extract spectral end-members from the data. Instead,...
2012-03-24 (iso8601)
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Average characteristics of subsidence inversions associated with
the Pacific High have only been documented for areas along the U.S.
West Coast and over the tropical eastern North Pacific Ocean. This
study, which is based on 3414 upper-air...
1977-11-28 (iso8601)
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This paper investigates the atmospheric circulation and transport characteristics
of the Martian atmosphere (as modeled by a Mars GCM) for three sets of
conditions. The conditions are based on a combination of season and dust loading
(as...
1994-06-27 (iso8601)
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For the purpose of investigating the fundamental nature of the
interannual oscillation observed in the tropical Pacific in conjunction with
El Nino/Southern Oscillation (ENSO), the Comprehensive Ocean
Atmosphere Data Set was analyzed. Based upon...
1990-08-23 (iso8601)
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Data from the Surveyor 1968 Spring cruise were used to study
the vertical distribution of salinity, temperature, dissolved oxygen,
apparent oxygen utilization, pH, alkalinity, specific alkalinity and
percent saturation of calcite in two sections,...
1970-05-04 (iso8601)
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The specific activity of ⁶⁵Zn (nanocuries ⁶⁵Zn/g total Zn)
was determined in various organs of the common coastal mussel,
Mytilus californianus Conrad, collected from six locations along
the Pacific Coast. These organs included the gills, mantle,...
1970-12-15 (iso8601)
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Plankton samples for this present study were collected from an
area off the southern Oregon coast, extending westward to about 83
kilometers offshore. Over this sampling area, 41 species of adult
copepods were identified, including representatives...
1970-11-30 (iso8601)
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The processes responsible for transporting and depositing thick
sections of coarse-grained terrigenous clastics on the abyssal floor
and for forming associated sedimentary structures are still conjectural.
Many workers attribute coarse deep-sea...
1969-09-19 (iso8601)
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Sudden changes occur where the mean values associated with two adjacent non-overlapping
windows of data are anomalously different, and the transition between the
window means occurs over a scale that is small relative to the scale of the windows....
1995-12-08 (iso8601)
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The sea as a dynamic conducting medium interacts continually
with the earth' s magnetic field. The physical principles underlying
this interaction are reviewed. These results are applied to the
particular problem of towed electrodes at the sea...
1970-08-14 (iso8601)
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Across-shelf transects over the eastern flank of Barrow Canyon were obtained in August 2005 with an autonomous underwater vehicle (AUV). Here, the shelf topography creates a “choke” point in which a substantial portion of Pacific inflow from the...
2012-03-20 (iso8601)
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Phosphate, silicate and nitrate concentrations in the sea off
the coast of Oregon were determined to study their seasonal distribution
patterns. The water samples were collected monthly along the
east-west hydrographic line off Newport, Oregon,...
1970-03-16 (iso8601)
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The distribution of particles in the Eastern Pacific Ocean was
investigated from 2 January to 14 February, l969, on the YALOC-69
cruise of Oregon State University. The size distributions were well
fitted by the two-parameter Weibull distribution...
1969-09-30 (iso8601)
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This paper examines the effect of “stencil width” on surface ocean geostrophic velocity and vorticity estimated from differentiating gridded satellite altimeter sea surface height products. In oceanographic applications, the value of the first...
2012-03-17 (iso8601)
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