Browse by Archive
ScholarsArchive at Oregon State University
|
The tidally varying circulation, stratification, and salt flux mechanisms are
investigated in a shallow salt wedge estuary where fluvial and tidal velocities are large and
the steady baroclinic circulation is comparatively weak. The study...
2010-06-09 (iso8601)
|
|
Wetland‐estuarine‐shelf interaction processes in the Plum Island Sound and
Merrimack River system in the Massachusetts coast are examined using the high‐resolution
unstructured grid, finite volume, primitive equations, coastal ocean model. The...
2010-10-16 (iso8601)
|
|
Calanoid copepod eggs have a robust, chitinous outer chorion, which makes field-collected, formaldehydefixed
eggs difficult to penetrate with stains or molecular probes. Egg development studies in copepods have
involved physical, chemical, and...
2007 (iso8601)
|
|
1988-07-13 (iso8601)
|
|
We examine the relation between δ¹⁸O in rainwater collected in southwestern Oregon
and climate variables including temperature, parcel trajectory, precipitation amount, and
specific humidity. Local surface air temperature at the time of sample...
2010-05-13 (iso8601)
|
|
The typically sparse distribution of weather stations in mountainous terrain
inadequately resolves temperature variability. Accordingly, high‐resolution gridding of
climate data (for applications such as hydrological modeling) often relies on...
2010-07-30 (iso8601)
|
|
Shoreward propagating, mode 2 nonlinear waves appear sporadically in mooring
records obtained off the coast of New Jersey in the summer of 2006. Individual mode
2 packets were tracked between two moorings separated by 1 km; however, packets could...
2010-07-02 (iso8601)
|
|
In this paper, measurements of high-frequency
broadband (160–590 kHz) acoustic backscattering from surface
trapped nonlinear internal waves of depression are presented.
These waves are ideal for assessing the contribution from oceanic...
2010-11-30 (iso8601)
|
|
Comprehensive observations of velocity, density, and
turbulent dissipation permit quantification of the nonlinear
internal wave (NLIW) contribution to vertical heat flux and
lateral mass transport over New Jersey’s shelf. The effect of
NLIWs on...
2010-04-24 (iso8601)
|
|
During the Ice in Clouds Experiment‐Layer Clouds (ICE‐L), dry lakebed, or playa,
salts from the Great Basin region of the United States were observed as cloud nuclei in
orographic wave clouds over Wyoming. Using a counterflow virtual impactor in...
2010-08-03 (iso8601)
|
|
New analyses of teleseismic body waves from moderate
earthquakes in western Argentina demonstrate that active
shortening of the Andean foreland occurs on reverse faults
extending to 40–50 km depth. Existing crustal‐scale
models of foreland...
2010-06-11 (iso8601)
|
|
The method used to separate surface and internal tides ultimately defines properties
such as internal‐tide generation and the depth structure of internal‐tide energy flux. Here,
we provide a detailed analysis of several surface‐/internal‐tide...
2010-06-19 (iso8601)
|
|
Internal‐tide generation is usually predicted from local
topography, surface tides, and stratification. However,
internal tides are often observed to be unrelated to local
spring‐neap forcing, appearing intermittently in 3–5 day
bursts. Here we...
2010-12-10 (iso8601)
|
|
Time‐dependent buoyant plumes form at the outflow of tidally dominated estuaries.
When estuary discharge velocity exceeds plume internal wave speed c, a sharp front forms
at the plume’s leading edge that expands from the time‐dependent source....
2010-05-29 (iso8601)
|
|
A methodology is described for assimilating observations in a steady state twodimensional
horizontal (2‐DH) model of nearshore hydrodynamics (waves and currents),
using an ensemble‐based statistical estimator. In this application, we treat...
2010-12-21 (iso8601)
|
|
Climate regime shifts force fish communities
through rapid transitions between alternate species
assemblages, but little is known about the role that biochemical
ecology plays in these transitions. We document
a biochemical effect of...
2006 (iso8601)
|
|
High‐resolution surveys of oceanographic and atmospheric conditions made during the
winter over the inner shelf off northwest Australia are used to examine the coastal ocean
response to large outgoing heat and freshwater fluxes. Relatively cool,...
2010-06-29 (iso8601)
|
|
Heat and salt balances over the New England shelf are examined using 10 month time
series of currents, temperature, and salinity from a four element moored array and surface
heat and freshwater fluxes from a meteorological buoy. A principal result...
2010-07-29 (iso8601)
|
|
We report the development of a numerical model simulating vertical movement of the
cyanobacterium Trichodesmium spp. Given a range of physiological parameters derived from the literature,
resultant model solutions allow us to explore the...
2006 (iso8601)
|
|
We have developed a coupled 3‐D pan‐Arctic biology/sea ice/ocean model to
investigate the impact of declining Arctic sea ice on the marine planktonic ecosystem over
1988–2007. The biophysical model results agree with satellite observations of a...
2010-10-08 (iso8601)
|
|
The calculated flow field and tide wave propagation in the Chilean Inland
Seas is modeled with a non-linear tidal embayment method (TEA-NL, Westerink
et al, 1988) and assimilation of tide records of the Chilean Hydrographic Institute.
Model is...
1990-08-03 (iso8601)
|
|
The link between anthropogenic nutrient loads and the magnitude and extent of diatom
and Phaeocystis colony blooms in the Southern Bight of the North Sea was explored with the complex
ecosystem model MIRO. The model was adapted for resolving the...
2005 (iso8601)
|
|
During the Tropical Composition, Clouds and Climate Coupling (TC4) experiment
that occurred in July and August of 2007, extensive sampling of active convection in the
ITCZ region near Central America was performed from multiple aircraft and...
2010-10-13 (iso8601)
|
