Wave-activity conservation laws and stability theorems for semi-geostrophic dynamics. Part 1. Pseudomomentum-based theory
Journal Article
·
· Journal of Fluid Mechanics
- Univ. of Toronto, Toronto (Canada)
A body theory based on quasi-geostatic (QG) dynamics is central to the understanding of large-scale atmospheric and oceanic dynamics. This paper treats the f-plane Boussinesq form of semi-geostatic (SG) dynamics, and its recent extension to beta -plane, compressible flow by Magnusdottir & Schubert. In the limit of small Rossby number, the results reduce to their respective QG forms. Novel features particular to SG dynamic include apparently unnoticed lateral boundary stability criteria and the necessity of including additional zonal-mean eddy correlation terms besides the zonal-mean potential vorticity fluxes wave-mean-flow balance.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 117657
- Journal Information:
- Journal of Fluid Mechanics, Journal Name: Journal of Fluid Mechanics Vol. 290; ISSN JFLSA7; ISSN 0022-1120
- Country of Publication:
- United States
- Language:
- English
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