Universität zu Köln

Rostami, Masoud and Zeitlin, Vladimir (2020). Evolution, propagation and interactions with topography of hurricane-like vortices in a moist-convective rotating shallow-water model. J. Fluid Mech., 902. NEW YORK: CAMBRIDGE UNIV PRESS. ISSN 1469-7645

Full text not available from this repository.

Abstract

The so-called moist-convective shallow-water model, which incorporates moist convection in a simple albeit self-consistent way is used to analyse how intense localized vortices, with distributions of horizontal velocity and relative vorticity close to those observed in tropical cyclones (TC), evolve and interact with topography on the beta-plane at low latitudes. Instabilities of such TC-like vortices are studied first in the f-plane approximation, and their development, interplay with beta-gyres and the role they play in vorticity redistribution and intensification are then analysed along the vortex trajectories on the beta-plane, both in dry and moist-convective environments. Interactions of the vortices with an idealized topography in the form of zonal and meridional ridges and islands of elliptic form and the role of moist convection in these processes are then investigated, revealing rich vortex-dynamics patterns. The results can be helpful in crude analyses and predictions of the evolution of the barotropic component of TC, of their trajectories over the ocean and during landfall and of related condensation/precipitation patterns.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Rostami, Masoud UNSPECIFIED UNSPECIFIED UNSPECIFIED Zeitlin, Vladimir UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-311795
DOI:	10.1017/jfm.2020.567
Journal or Publication Title:	J. Fluid Mech.
Volume:	902
Date:	2020
Publisher:	CAMBRIDGE UNIV PRESS
Place of Publication:	NEW YORK
ISSN:	1469-7645
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language TROPICAL CYCLONE MOTION; VORTEX MOTION; IDEALIZED SIMULATIONS; NUMERICAL-SIMULATION; OROGRAPHIC INFLUENCE; BAROTROPIC VORTICES; TRACK DEFLECTION; TAIWAN OROGRAPHY; BETA-GYRES; DYNAMICS Multiple languages Mechanics; Physics, Fluids & Plasmas Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/31179