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  Evolution of double-eye wall hurricanes and emergence of complex tripolar end states in moist-convective rotating shallow water model

Rostami, M., Zeitlin, V. (2022): Evolution of double-eye wall hurricanes and emergence of complex tripolar end states in moist-convective rotating shallow water model. - Physics of Fluids, 34, 6, 066602.
https://doi.org/10.1063/5.0096554

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 Creators:
Rostami, Masoud1, Author              
Zeitlin, Vladimir2, Author
Affiliations:
1Potsdam Institute for Climate Impact Research, Potsdam, ou_persistent13              
2External Organizations, ou_persistent22              

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 Abstract: A detailed investigation of linear instabilities of double-eyewall hurricane-like vortices with double maxima (“walls”) of azimuthal velocity and vorticity around the central minimum (“eye”) and of their nonlinear saturation is carried out in the framework of the moist-convective rotating shallow water model. It is shown that developing barotropic instability leads to inward displacement and gradual disappearance of the inner wall and to the formation of a nontrivial tripolar quasi-stationary structure, provided the second, outer, wall of the initial vortex is high enough. The effects of moist convection lead to the enhancement of the outer wall. In comparison, under the influence of the same instability, vortices with an inner wall stronger than the outer one evolve toward monopolar single-eyewall structures.

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Language(s): eng - English
 Dates: 2022-05-192022-06-072022-06
 Publication Status: Finally published
 Pages: 12
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1063/5.0096554
PIKDOMAIN: RD1 - Earth System Analysis
Organisational keyword: RD1 - Earth System Analysis
Research topic keyword: Atmosphere
Research topic keyword: Nonlinear Dynamics
Regional keyword: Global
Working Group: Earth System Modes of Operation
MDB-ID: No data to archive
OATYPE: Green Open Access
 Degree: -

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Title: Physics of Fluids
Source Genre: Journal, SCI, Scopus, p3
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Pages: - Volume / Issue: 34 (6) Sequence Number: 066602 Start / End Page: - Identifier: CoNE: https://publications.pik-potsdam.de/cone/journals/resource/physics-of-fluids
Publisher: American Institute of Physics (AIP)