Now showing items 1-17 of 17

  • Assessment of mesoscale eddy parameterizations for coarse resolution ocean models 

    Solovev, Mikhail A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-09)
    Climate simulation with numerical oceanic models requires a proper parameterization scheme in order to represent the effects of unresolved mesoscale eddies. Even though a munber of schemes have been proposed and some ...
  • Baroclinic vortices over a sloping bottom 

    LaCasce, Joseph H. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1996-09)
    Nonlinear quasigeostrophic flows in two layers over a topographic slope are considered. The evolution depends on the size of two parameters which indicate the degree of nonlinearity at depth. The first measures the ...
  • Eddies and friction : removal of vorticity from the wind-driven gyre 

    Fox-Kemper, Baylor (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2003-06)
    Inertial terms dominate the single-gyre ocean model and prevent western-intensification when the viscosity is small. This occurs long before the oceanically-appropriate parameter range. It is demonstrated here that the ...
  • Eddy dynamics of ß plumes 

    Kida, Shinichiro (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2003-09)
    The importance of eddies and nonlinearities in ß-plume dynamics in the deep ocean was investigated using reduced gravity models of the deep ocean forced by a small region of cross isopycnal transport in the interior. The ...
  • Eddy forcing of the mean circulation in the western North Atlantic 

    Brown, Ellen Dunning (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1984-08)
    This thesis addresses several aspects of the problem of determining the effect of the low-frequency eddy variability on the mean circulation of the Western North Atlantic. A framework for this study is first established ...
  • Eddy generation at a convex corner by a coastal current in a rotating system 

    Klinger, Barry A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1992-03)
    Rotating baroclinic and barotropic boundary currents flowing around a corner in the laboratory were studied in order to discover the circumstances under which eddies were produced at the corner. Such flows are reminiscent ...
  • Energy pathways and structures of oceanic eddies from the ECCO2 state estimate and simplified models 

    Chen, Ru (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2013-02)
    Studying oceanic eddies is important for understanding and predicting ocean circulation and climate variability. The central focus of this dissertation is the energy exchange between eddies and mean flow and banded ...
  • Evolution of the Irminger Current anticyclones in the Labrador Sea from hydrographic data 

    Rykova, Tatiana A. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2006-06)
    The continuous supply of heat and fresh water from the boundaries to the interior of the Labrador Sea plays an important role for the dynamics of the region and in particular, for the Labrador Sea Water formation. Thus, ...
  • Flow over finite isolated topography 

    Thompson, LuAnne (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1990-11)
    One and two layer models are used to study flow over axisymmetric isolated topography. Inviscid or nearly inviscid flow in which non-linear effects have order one importance is considered, and both the effects of β and ...
  • Generation of mid-ocean eddies : the local baroclinic instability hypothesis 

    Arbic, Brian K. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2000-08)
    The plausibility of local baroclinic instability as a generation mechanism for midocean mesoscale eddies is examined with a two-layer, quasi-geostrophic (QG) model forced by an imposed, horizontally homogeneous, vertically ...
  • Influence of topography on the dynamics of baroclinic oceanic eddies 

    Pankratov, Kirill K. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1994-02)
    In this work we study motion of a baroclinic upper-ocean eddy over a large-scale topography which simulates a continental slope. We use a quasigeostrophic f-plane approximation with continuous stratification. To study ...
  • Interaction of an eddy with a continental slope 

    Wang, Xiaoming (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1992-09)
    This study concerns the barotropic interactions between a mesoscale eddy and a straight monotonic bottom topography. Through simple to relatively complicated modeling effort, some of the fundamental properties of the ...
  • A model of a Mediterranean salt lens in external shear 

    Walsh, David (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1992-04)
    A pair of simple models representing the interaction of a continuously stratified f-plane quasigeostrophic lens with a uniform external shear flow is examined. The study is motivated by the desire to understand the ...
  • Monthly variability in upper ocean biogeochemistry due to mesoscale eddy activity in the Saragasso Sea 

    Sweeney, Erin N. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2001-05)
    A comparison of monthly biogeochemical measurements made from 1993 to 1995, combined with hydrography and satellite altimetry, was used to observe the impacts of nine eddy events on primary productivity and particle flux ...
  • Radiating instability of nonzonal ocean currents 

    Kamenkovich, Igor V. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1996-09)
    This thesis addresses the question of how a highly energetic eddy field could be generated in the interior of the ocean away from the swift boundary currents. The energy radiation due to the temporal growth of non-trapped ...
  • Representation of eddies in climate models by a potential vorticity flux 

    Wardle, Richard M. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1999-02)
    This thesis addresses the parameterization of the heat and momentum transporting properties of eddy motions for use in three-dimensional, primitive equation, z-coordinate atmosphere and ocean models. Determining the ...
  • Submesoscale coherent vortices in the deep Brazil Basin 

    Kassis, Patricia (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2000-08)
    With Lagrangian and hydrographic data taken in the deep Brazil Basin, we identify several submesoscale coherent vortices (SCVs). These features contrast with SCV paradigms in that float data indicate approximately equal ...