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Conditional nonlinear optimal perturbations of the double-gyre ocean circulation
Conditional nonlinear optimal perturbations double-gyre ocean circulation
2009/11/2
In this paper, we study the development of finite amplitude perturbations on linearly stable steady barotropic double-gyre flows in a rectangular basin using the concept of Conditional Nonlinear Optim...
Eddy Resolution versus Eddy Diffusion in a Double Gyre GCM. Part II：Mixing of Passive Tracers
Eddy Resolution Double Gyre GCM Eddy Diffusion Passive Tracers
2008/12/15
The parameterization of the effect of the unresolved scales of motion on a passive tracer field in large-scale numerical ocean models is analyzed through a combination of Lagrangian and Eulerian veloc...
Eddy Resolution versus Eddy Diffusion in a Double Gyre GCM. Part I：The Lagrangian and Eulerian Description
double gyre Eddy Resolution Eddy Diffusion
2008/12/15
The Lagrangian and Eulerian descriptions of the flow in a double gyre, eddy-resolving numerical simulation are compared in the context of exploring the use of drifter arrays to describe ocean circulat...
The Statistics and Sensitivity of a Double-Gyre Model：The Reduced-Gravity, Quasigeostrophic Case
double-gyre model Quasigeostrophic Case Reduced-Gravity
2008/12/11
The sensitivity of the time-averaged circulation of an oceanic double-gyre model to variations in the model's parameters and forcing is studied. Unresolved low-frequency variability in the solution le...
Multiple Equilibria, Periodic, and Aperiodic Solutions in a Wind-Driven, Double-Gyre, Shallow-Water Model
shallow-water western boundary currents quasigeostrophic
2008/12/11
A reduced-gravity shallow-water (SW) model is used to study the nonlinear behavior of western boundary currents (WBCs), with particular emphasis on multiple equilibria and low-frequency variations. Wh...
Phenomenology of the Low-Frequency Variability in a Reduced-Gravity, Quasigeostrophic Double-Gyre Model
low-frequency variability Double-Gyre Model oceanic wind-driven circulation
2008/12/9
The low-frequency variability of the oceanic wind-driven circulation is investigated by use of a reduced-gravity, quasigeostrophic model with slight variations on the classic double-gyre wind forcing....
Multiple Equilibria of a Double-Gyre Ocean Model with Super-Slip Boundary Conditions
Multiple Equilibria Super-Slip Boundary Conditions Double-Gyre Ocean Model
2008/10/23
The steady-state solutions of a barotropic double-gyre ocean model in which the wind stress curl input of vorticity is balanced primarily by bottom friction are studied. The bifurcations away from a u...
Global Bifurcation of Shilnikov Type in a Double-Gyre Ocean Model
Global Bifurcation Shilnikov Type Double-Gyre Ocean Model
2008/7/31
The dynamics of an idealized wind-driven double-gyre circulation in an ocean basin are studied from a dynamical systems point of view in an effort to better understand its variability. While previous ...
Geometry of Cross-Stream Mixing in a Double-Gyre Ocean Model
Cross-Stream Mixing Double-Gyre Ocean Model
2008/7/21
New dynamical systems techniques are used to analyze fluid particle paths in an eddy resolving, barotropic ocean model of the Gulf Stream. Specifically, the existence of finite-time invariant manifold...
Four-Gyre Circulation in a Barotropic Model with Double-Gyre Wind Forcing
Four-Gyre Circulation Barotropic Model Double-Gyre Wind Forcing
2008/6/30
Results from a barotropic vorticity equation model driven by symmetric, double-gyre wind forcing are described. The authors work in a regime in which the model reaches a state of turbulent equilibrium...