Journal of the Meteorological Society of Japan. Ser. II
Online ISSN : 2186-9057
Print ISSN : 0026-1165
ISSN-L : 0026-1165
A Theory of Rain Band in Typhoon
Ryõzaburõ Yamamoto
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1963 Volume 41 Issue 6 Pages 309-316

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Abstract

Elastoid-gravoid wave in a circular vortex can assume a radially banded feature under some conditions. Combining the factor exp (ikr) expressing pproximately such feature with the factor exp (ilθ) inherent for elastoid-gravoid wave, spiral regions of upward motion can exist, where γ and θ are radius and azimuthal angle, respectively. The wave of small l assumes a radially banded feature only near the center, and the wave of large l does not there.
Discussions are given about generation of these waves, noticing the concentrated strong upward motion and abrupt change of wind velocity near the center.

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