Abstract
A simple two-dimensional model for quasigeostrophic flow is contrasted with the two-dimensional incompressible Euler equations. The model arises under the assumptions of fast rotation, uniform stratification and uniform potential vorticity. It is found that the more local feed-back of the quasigeostrophic model gives rise to strongly nonlinear front formation, as opposed to two-dimensional Euler, where the steepening process of mature fronts obeys a nonlocal, nearly linear mechanism.
Original language | English (US) |
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Pages (from-to) | 515-522 |
Number of pages | 8 |
Journal | Physica D: Nonlinear Phenomena |
Volume | 98 |
Issue number | 2-4 |
DOIs | |
State | Published - 1996 |
Keywords
- Euler equations
- Frontogenesis
- Geostrophic balance
- Singular behavior
- Vortex stretching
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Mathematical Physics
- Condensed Matter Physics
- Applied Mathematics