Three-dimensional spiral structure of tropical cyclone under four-force balance

doi:10.1088/1674-1056/23/6/069201

Abstract The steady axis-symmetrical atmosphere dynamical equations are used for describing spiral structure of tropical cyclones under four-force (pressure gradient force, Coriolis force, centrifugal force, and friction force) balance, and the dynamical systems of three-dimensional (3D) velocity field are introduced. The qualitative analysis of the dynamical system shows that there are down 3D spiral structures in eye of tropical cyclone and tropical cyclone is 3D counterclockwise up spiral structure. These results are consistent with the observed tropical cyclone on the weather map.

Keywords: tropical cyclones spiral structure dynamical systems four-force balance

Received: 26 September 2013
Revised: 12 November 2013
Accepted manuscript online:

PACS:	92.60.-e	(Properties and dynamics of the atmosphere; meteorology)
	92.60.Ox	(Tropical meteorology)

Fund: Project supported by the National Natural Science Foundation of China (Granted No. 40975027).

Corresponding Authors: Fu Zun-Tao
E-mail: fuzt@pku.edu.cn

Cite this article:

Liu Shi-Kuo (刘式适), Fu Zun-Tao (付遵涛), Liu Shi-Da (刘式达) Three-dimensional spiral structure of tropical cyclone under four-force balance 2014 Chin. Phys. B 23 069201

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Three-dimensional spiral structure of tropical cyclone under four-force balance

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