Stability of Geostrophic Vortices on a Rotating Sphere

Abstract

The original motivation for this study comes from the climatological observation of three semipermanent subtropical highs in each of the Northern and Southern hemispheres. The stability under perturbation of the following four types of configurations of 'geostrophic' vortices is studied: (a) N vortices of equal strength mu equally spaced on a circle of colatitude theta; (b) N vortices of equal strength mu equally space on a circle of colatitude theta, one vortex with strength (mu sub 0) at the pole; (c) the same distribution as in (a) but satisfying the boundary condition: vanishing normal velocity component at the equator; (d) the same distribution as (b) but satisfying the boundary CONDITION: vanishing normal velocity component at the equator.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1974
Accession Number
ADA008810

Entities

People

  • Carlos A. Leiva

Organizations

  • New York University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Amplitude
  • Bessel Functions
  • Boundaries
  • Computational Science
  • Eigenvalues
  • Equations
  • Equations Of Motion
  • Lepidoptera
  • Molecular Dynamics
  • New York
  • Northern Hemisphere
  • Numerical Integration
  • Polar Cap
  • Regions
  • Stratified Fluids
  • United States
  • United States Government

Readers

  • Atmospheric Science/Meteorology
  • Economics
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster