Index Catalog // ScholarsArchive@OSU

Kinematics and Dynamics of a Model Eastern-boundary Poleward Undercurrent

Creator:: Duran, Rodrigo
Abstract:: A carefully calibrated primitive-equation model from 41°N to 48°N is used to study the poleward undercurrent off the US west coast. Chapter 2 describes poleward flow over the slope from Eulerian and Lagrangian perspectives. The model is robust, in the sense of several characteristics being qualitatively consistent with observational and...
Resource Type:: Dissertation
Full Text:: approved: Roger M. Samelson A carefully calibrated primitive-equation model from 41ıN to 48ıN is used to

Quantifying linear disturbance growth in periodic and aperiodic systems

Creator:: Wolfe, Christopher Lee
Abstract:: The mathematical and physical connections between three different ways of quantifying linear predictability in geophysical fluid systems are studied in a series of analytical and numerical models. Normal modes, as they are traditionally formulated in the instabilities theories of geophysical fluid dynamics, characterize the asymptotic development of disturbances to stationary...
Resource Type:: Dissertation
Full Text:: Disturbance Growth in Periodic and Aperiodic Systems Abstract approved: Roger M. Samelson The mathematical

Mathematical approaches to the physics of mesoscale oceanography

Creator:: Early, Jeffrey J.
Abstract:: The long-term evolution of Gaussian eddies is studied in an equivalent barotropic model using both linear and nonlinear quasi-geostrophic theory in an attempt to understand westward propagating satellite altimetry tracked mesoscale eddies. By examining both individual eddies and a large basin seeded with eddies, it is shown that long term...
Resource Type:: Dissertation
Full Text:: Approaches to the Physics of Mesoscale Oceanography Abstract approved: Roger M. Samelson The long-term

Observations and modelling of fronts and frontogenesis in the upper ocean

Creator:: Samelson, Roger M.
Resource Type:: Dissertation

The cross-equatorial structure of tropical instability waves in sea surface height

Creator:: Lyman, John M.
Abstract:: A linearized model with two vertical modes has been developed to understand observed characteristics of monthly variability in the Equatorial Pacific from TOPEX/POSEIDON measurements of Sea Surface Height (SSH). The 2-mode model is obtained from an equatorial beta plane model that has been linearized about a geostrophically balanced mean flow...
Resource Type:: Dissertation
Full Text:: Instability Waves in Sea Surface Height by John M. Lyman A DISSERTATION submitted to Oregon State

Long baroclinic planetary waves in a nonzonal vertically sheared mean flow

Creator:: Cerovecki, Ivana
Abstract:: We consider long planetary waves of annual period linearized about a steady, wind-driven subtropical (ST) gyre circulation. The circulation divides the gyre into an eastern zone (EZ) where only the surface layer is in steady motion and a western zone (WZ) where both the surface and the middle layer are...
Resource Type:: Dissertation
Full Text:: Roger Samelson to be on my committee before I had met him. I could not have made a better choice

The effects of thermodynamic parameterizations, ice shelf geometry, and tides on modeled basal melting of Weddell Sea ice shelves

Creator:: Mueller, Rachael D.
Abstract:: Antarctic Ice Sheet mass balance and, hence, sea level change is affected by the floating extensions of outlet glaciers and ice streams that take up about 44% of the coastline (Drewry et al., 1982) and are referred to as "ice shelves". Ice sheet mass loss accelerates when these ice shelves...
Resource Type:: Dissertation
Full Text:: , Roger Samelson, and Peter Ruggiero. Thank you, Eric, for your willingness to assume the role of my

Surface wind modification near mid-latitude ocean fronts : observational and dynamical analysis

Creator:: O'Neill, Larry W.
Abstract:: Interactions between surface winds and meanders in mid-latitude sea surface temperature (SST) fronts with horizontal length scales of 100-1000 km are investigated from satellite observations and numerical simulations. Observations from the Sea- Winds scatterometer on the QuikSCAT satellite show that the magnitude, direction, curl, and divergence of the surface wind...
Resource Type:: Dissertation
Full Text:: , Eric Maloney, and Roger Samelson for their enthusiastic guidance and help. To my wonderful close

Vertical Coastal Trapped Wave Propagation Produced by a Subsurface Ridge

Creator:: Dhage, Laxmikant
Abstract:: The vertical propagation of Coastal Trapped Waves (CTWs) due to subsurface ridges is explored with the help of linear numerical and analytical models. Results show that submerged ridges projecting from the shoreline can scatter a horizontally propagating single baroclinic mode Kelvin wave into both upward and downward propagating Kelvin wave...
Resource Type:: Dissertation
Full Text:: guidance even at the personal level. I would also like to thank the other members of my committee Roger and

Satellite observations of the inﬂuence of mesoscale ocean eddies on near-surface temperature, phytoplankton and surface stress

Creator:: Gaube, Peter
Abstract:: The influence of mesoscale ocean eddies on near-surface ocean temperature, surface stress and phytoplankton communities is investigated by collocating numerous satellite measurements along with vertical profiles of oceanic temperature and salinity to the interiors of eddies identified and tracked in altimetric sea surface height maps. The surface currents associated with...
Resource Type:: Dissertation
Full Text:: , Ricardo Matano, Roger Samel- son and Allen Milligan deserve much credit for developing some of the

ScholarsArchive@OSU

Kinematics and Dynamics of a Model Eastern-boundary Poleward Undercurrent

Quantifying linear disturbance growth in periodic and aperiodic systems

Mathematical approaches to the physics of mesoscale oceanography

Observations and modelling of fronts and frontogenesis in the upper ocean

The cross-equatorial structure of tropical instability waves in sea surface height

Long baroclinic planetary waves in a nonzonal vertically sheared mean flow

The effects of thermodynamic parameterizations, ice shelf geometry, and tides on modeled basal melting of Weddell Sea ice shelves

Surface wind modification near mid-latitude ocean fronts : observational and dynamical analysis

Vertical Coastal Trapped Wave Propagation Produced by a Subsurface Ridge

Satellite observations of the inﬂuence of mesoscale ocean eddies on near-surface temperature, phytoplankton and surface stress

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