Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmos44b..03f&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #OS44B-03
Physics
0343 Planetary Atmospheres (5210, 5405, 5704), 3265 Stochastic Processes (3235, 4468, 4475, 7857), 3319 General Circulation (1223), 3379 Turbulence (4490)
Scientific paper
Coherent jets, such as the Jovian banded winds, are a prominent feature of rotating turbulence. Shallow water turbulence models capture the essential mechanism of this jet formation process which is systematic eddy momentum flux directed up the mean velocity gradient. Understanding how this systematic eddy flux convergence is maintained and how the mean zonal flow and the eddy field mutually adjust to produce the observed jet structure constitutes a fundamental theoretical problem. In this presentation a shallow water equatorial beta plane model implementation of Stochastic Structural Stability Theory is described which produces detailed agreement with the structure of jets observed on the giant planets including a strong prograde equatorial jet and multiple midlatitude jets with robust reversals in sign of absolute vorticity gradient.
Farrell Brian F.
Ioannou Petros J.
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