Rossby waves and zonons in zonostrophic turbulence

Semion Sukoriansky; Nadejda Dikovskaya; Roger Grimshaw; Boris Galperin

doi:10.1063/1.3701355

Rossby waves and zonons in zonostrophic turbulence

Semion Sukoriansky, Nadejda Dikovskaya, Roger Grimshaw, Boris Galperin

Department of Mechanical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

12 Scopus citations

Abstract

Two-dimensional, small-scale forced turbulent flows on the surface of a rotating sphere, along with the familiar Rossby-Haurwitz waves, reveal a new class of waves termed zonons. The zonons form non-dispersive wave packets that propagate in the westward direction with the velocity equal to the phase speed of the most energetic Rossby-Haurwitz wave. Zonons preserve their identity even after the forcing is switched off and the flow undergoes structural reorganization. Zonons reside in locations with the maximum meridional shear and are engaged in strong energy exchange with themean flow. These physical properties of zonons point to their identitywith Rossby solitary waves. The symbiosis between themean flow and the solitarywaves plays an important role in the large-scale dynamics.

Original language	English
Title of host publication	Waves and Instabilities in Space and Astrophysical Plasmas
Pages	111-122
Number of pages	12
DOIs	https://doi.org/10.1063/1.3701355
State	Published - 1 Dec 2012
Event	Workshop on Waves and Instabilities in Space and Astrophysical Plasmas - Eilat, Israel Duration: 19 Jun 2011 → 24 Jun 2011

Publication series

Name	AIP Conference Proceedings
Volume	1439
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	Workshop on Waves and Instabilities in Space and Astrophysical Plasmas
Country/Territory	Israel
City	Eilat
Period	19/06/11 → 24/06/11

Keywords

Geostrophic turbulence
Rossby solitary waves
Rossby-Haurwitz waves
Zonostrophic turbulence

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1063/1.3701355

Cite this

@inproceedings{66e6c154aed14436bb94ee54a404b34d,

title = "Rossby waves and zonons in zonostrophic turbulence",

abstract = "Two-dimensional, small-scale forced turbulent flows on the surface of a rotating sphere, along with the familiar Rossby-Haurwitz waves, reveal a new class of waves termed zonons. The zonons form non-dispersive wave packets that propagate in the westward direction with the velocity equal to the phase speed of the most energetic Rossby-Haurwitz wave. Zonons preserve their identity even after the forcing is switched off and the flow undergoes structural reorganization. Zonons reside in locations with the maximum meridional shear and are engaged in strong energy exchange with themean flow. These physical properties of zonons point to their identitywith Rossby solitary waves. The symbiosis between themean flow and the solitarywaves plays an important role in the large-scale dynamics.",

keywords = "Geostrophic turbulence, Rossby solitary waves, Rossby-Haurwitz waves, Zonostrophic turbulence",

author = "Semion Sukoriansky and Nadejda Dikovskaya and Roger Grimshaw and Boris Galperin",

year = "2012",

month = dec,

day = "1",

doi = "10.1063/1.3701355",

language = "English",

isbn = "9780735410312",

series = "AIP Conference Proceedings",

pages = "111--122",

booktitle = "Waves and Instabilities in Space and Astrophysical Plasmas",

note = "Workshop on Waves and Instabilities in Space and Astrophysical Plasmas ; Conference date: 19-06-2011 Through 24-06-2011",

}

TY - GEN

T1 - Rossby waves and zonons in zonostrophic turbulence

AU - Sukoriansky, Semion

AU - Dikovskaya, Nadejda

AU - Grimshaw, Roger

AU - Galperin, Boris

PY - 2012/12/1

Y1 - 2012/12/1

N2 - Two-dimensional, small-scale forced turbulent flows on the surface of a rotating sphere, along with the familiar Rossby-Haurwitz waves, reveal a new class of waves termed zonons. The zonons form non-dispersive wave packets that propagate in the westward direction with the velocity equal to the phase speed of the most energetic Rossby-Haurwitz wave. Zonons preserve their identity even after the forcing is switched off and the flow undergoes structural reorganization. Zonons reside in locations with the maximum meridional shear and are engaged in strong energy exchange with themean flow. These physical properties of zonons point to their identitywith Rossby solitary waves. The symbiosis between themean flow and the solitarywaves plays an important role in the large-scale dynamics.

AB - Two-dimensional, small-scale forced turbulent flows on the surface of a rotating sphere, along with the familiar Rossby-Haurwitz waves, reveal a new class of waves termed zonons. The zonons form non-dispersive wave packets that propagate in the westward direction with the velocity equal to the phase speed of the most energetic Rossby-Haurwitz wave. Zonons preserve their identity even after the forcing is switched off and the flow undergoes structural reorganization. Zonons reside in locations with the maximum meridional shear and are engaged in strong energy exchange with themean flow. These physical properties of zonons point to their identitywith Rossby solitary waves. The symbiosis between themean flow and the solitarywaves plays an important role in the large-scale dynamics.

KW - Geostrophic turbulence

KW - Rossby solitary waves

KW - Rossby-Haurwitz waves

KW - Zonostrophic turbulence

UR - http://www.scopus.com/inward/record.url?scp=84886015814&partnerID=8YFLogxK

U2 - 10.1063/1.3701355

DO - 10.1063/1.3701355

M3 - Conference contribution

AN - SCOPUS:84886015814

SN - 9780735410312

T3 - AIP Conference Proceedings

SP - 111

EP - 122

BT - Waves and Instabilities in Space and Astrophysical Plasmas

T2 - Workshop on Waves and Instabilities in Space and Astrophysical Plasmas

Y2 - 19 June 2011 through 24 June 2011

ER -

Rossby waves and zonons in zonostrophic turbulence

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this