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Super- and sub-rotating equatorial jets in shallow water models of Jovian atmospheres: Newtonian cooling versus Rayleigh friction

Abstract:

Numerical simulations of the shallow water equations on rotating spheres produce mixtures of robust vortices and alternating zonal jets, as seen in the atmospheres of the gas giant planets. However, simulations that include Rayleigh friction invariably produce a sub-rotating (retrograde) equatorial jet for Jovian parameter regimes, whilst observations of Jupiter show a super-rotating (prograde) equatorial jet that has persisted over several decades. Super-rotating equatorial jets have recentl...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Accepted manuscript

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Publisher copy:
10.1017/jfm.2017.232

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Department:
Oxford, MPLS, Mathematical Institute
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Department:
Corpus Christi College
Publisher:
Cambridge University Press Publisher's website
Journal:
Journal of Fluid Mechanics Journal website
Volume:
822
Pages:
484-511
Publication date:
2017-06-07
Acceptance date:
2017-04-07
DOI:
EISSN:
1469-7645
ISSN:
0022-1120
Pubs id:
pubs:700095
URN:
uri:02ecfa66-ecd3-42a5-8093-d8c03753fb45
UUID:
uuid:02ecfa66-ecd3-42a5-8093-d8c03753fb45
Local pid:
pubs:700095

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