DEVELOPMENT OF MESOSCALE DISTURBANCE IN THREE-DIMENSIONAL INHOMOGENEOUS VORTEX

SONG Xiao-liang; LU Han-cheng

Abstract:

Starting from the anelastic equations describing deep convection in cylindrical coordinates, the WKBJ method is used to discuss the stability of asymmetric three-dimensional inhomogeneous vortex under the conditions of nonhydrostatic and non-equilibrium gradient wind. From the equation of wave action, the development of disturbance is qualitatively analyzed.

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SONG Xiao-liang, LU Han-cheng. DEVELOPMENT OF MESOSCALE DISTURBANCE IN THREE-DIMENSIONAL INHOMOGENEOUS VORTEX [J]. Journal of Tropical Meteorology, 2000, 6(1): 54-64.

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DEVELOPMENT OF MESOSCALE DISTURBANCE IN THREE-DIMENSIONAL INHOMOGENEOUS VORTEX

Meteorological College, China PLA University of Science and Engineering, Nanjing 211101 China

Received Date: 1999-05-13

Rev Recd Date: 2000-02-15

Abstract: Starting from the anelastic equations describing deep convection in cylindrical coordinates, the WKBJ method is used to discuss the stability of asymmetric three-dimensional inhomogeneous vortex under the conditions of nonhydrostatic and non-equilibrium gradient wind. From the equation of wave action, the development of disturbance is qualitatively analyzed.

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Reference (8)

[1]	CHEN Ying-yi,1984.Conservation of wave action density and stability in vortex motion(in Chinese)[J].Sci. Sin.,(4):476-483.
[2]	FEI Jian-fang,LU Han-cheng,1996.Instability of inertia-internal gravity waves and symmetric instability in circular vortexes(in Chinese)[J].Sci.Atmos.Sin.,20(1):54-62.
[3]	HUANG Rui-xin,CHAO Ji-ping,1980.The linear theory of spiral cloud bands of typhoon(in Chinese)[J].Sci. Atmos.Sin.,4(2):148-158.
[4]	LIU Shi-kuo,LIU Shi-da,1991.Atmospheric dynamics(in Chinese)[M].Beijing:Peking University Press, 135-137.
[5]	LUO Zhe-xian,1995.Barotropical instability of disturbances on a large circle vortex(in Chinese)[J].Acta Meteor.Sin.,53(3):281-288.
[6]	XU Qin,1982.Unstable spiral inertia gravitational waves in typhoons(in Chinese)[J].Sci.Sin.,(7):665-672.
[7]	ZHANG Ming,1995.A study of the unstability in the barotropic vortex(in Chinese)[J].Sci.Atmos.Sin.,19(6):677-686.
[8]	ZHANG Ke-su,1988.On mesoscale instability of a baroclinic flow I.Symmetric instability(in Chinese)[J].Acta Meteor.Sin.,46(3):258-266.

[1]	CHEN Ying-yi,1984.Conservation of wave action density and stability in vortex motion(in Chinese)[J].Sci. Sin.,(4):476-483.
[2]	FEI Jian-fang,LU Han-cheng,1996.Instability of inertia-internal gravity waves and symmetric instability in circular vortexes(in Chinese)[J].Sci.Atmos.Sin.,20(1):54-62.
[3]	HUANG Rui-xin,CHAO Ji-ping,1980.The linear theory of spiral cloud bands of typhoon(in Chinese)[J].Sci. Atmos.Sin.,4(2):148-158.
[4]	LIU Shi-kuo,LIU Shi-da,1991.Atmospheric dynamics(in Chinese)[M].Beijing:Peking University Press, 135-137.
[5]	LUO Zhe-xian,1995.Barotropical instability of disturbances on a large circle vortex(in Chinese)[J].Acta Meteor.Sin.,53(3):281-288.
[6]	XU Qin,1982.Unstable spiral inertia gravitational waves in typhoons(in Chinese)[J].Sci.Sin.,(7):665-672.
[7]	ZHANG Ming,1995.A study of the unstability in the barotropic vortex(in Chinese)[J].Sci.Atmos.Sin.,19(6):677-686.
[8]	ZHANG Ke-su,1988.On mesoscale instability of a baroclinic flow I.Symmetric instability(in Chinese)[J].Acta Meteor.Sin.,46(3):258-266.

DEVELOPMENT OF MESOSCALE DISTURBANCE IN THREE-DIMENSIONAL INHOMOGENEOUS VORTEX

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