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THE ANALYSES OF TYPHOON "RAMASUN" INTENSITY WEAKEN SLOWLY IN THE NORTHWARD COURSE

Lin Wei

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Abstract

Typhoon Ramasun effected Zhoushan in the early July, 2002When it went northward, it remained strong intensity. By analyzing typhoon structure itself and other surrounding situation, we found that typhoon regularly structure, large scale and strong typhoon circulation provided extensive convergence, necessary water vapor and energy by the warm and damp vapor transfer zone surrounding typhoon. Upper air divergence enhanced lower air convergence, symmetrical vorticity distribution made vapor and energy revolving to typhoon center. Weak vertical shear and warm sea surface are other reasons to remain the intensity of typhoon.

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What this paper is about

Typhoon Ramasun effected Zhoushan in the early July, 2002When it went northward, it remained strong intensity. By analyzing typhoon structure itself and other surrounding situation, we found that typhoon regularly structure, large scale and strong typhoon circulation provided extensive convergence, necessary water vapor and energy by the warm and damp vapor transfer zone surrounding typhoon. Upper air divergence enhanced lower air convergence, symmetrical vorticity distribution made vapor and energy revolving to typhoon center. Weak vertical shear and warm sea surface are other reasons to remain the intensity of typhoon.

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Available abstract

Typhoon Ramasun effected Zhoushan in the early July, 2002When it went northward, it remained strong intensity. By analyzing typhoon structure itself and other surrounding situation, we found that typhoon regularly structure, large scale and strong typhoon circulation provided extensive convergence, necessary water vapor and energy by the warm and damp vapor transfer zone surrounding typhoon. Upper air divergence enhanced lower air convergence, symmetrical vorticity distribution made vapor and energy revolving to typhoon center. Weak vertical shear and warm sea surface are other reasons to remain the intensity of typhoon.

Key concepts: Typhoon, Climatology, Intensity (physics), Geology, Water vapor, Tropical cyclone, Meteorology, Environmental science

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