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Zonostrophic instability driven by discrete particle noise

Abstract:

The consequences of discrete particle noise for a system possessing a possibly unstable collective mode are discussed. It is argued that a zonostrophic instability (of homogeneous turbulence to the formation of zonal flows) occurs just below the threshold for linear instability. The scenario provides a new interpretation of the random forcing that is ubiquitously invoked in stochastic models such as the second-order cumulant expansion or stochastic structural instability theory; neither intri...

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

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Publisher copy:
10.1063/1.4978786

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Physics
Subgroup:
Theoretical Physics
ORCID:
0000-0003-3112-9221
Krommes, JA More by this author
Publisher:
American Institute of Physics Publisher's website
Journal:
Physics of Plasma
Volume:
24
Issue:
4
Publication date:
2017-04-03
Acceptance date:
2017-03-03
DOI:
EISSN:
1089-7674
ISSN:
1070-664X
Pubs id:
pubs:1043320
URN:
uri:141c62e4-e394-4c32-a0e1-58bebf01ab3a
UUID:
uuid:141c62e4-e394-4c32-a0e1-58bebf01ab3a
Local pid:
pubs:1043320
Keywords:

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