Journal of Natural Disaster Science

ANALYSIS OF TYPHOON PRESSURE PATTERNS OVER JAPANESE ISLANDS

Yasushi MITSUTA
Professor, Disaster Prevention Research Institute, Kyoto University
Takeshi FUJII
Professor, Department of General Culture, Kyoto Sangyo University, Kyoto
and
Koji KAWAHIRA
Research Associate, Geophysical Institute, Kyoto University, Kyoto

(Received 24 November, 1979 and in revised form 20 December, 1979)

Abstract

The surface pressure profiles of forty typhoons which landed on the main islands of Japan from 1951 to 1978, with central pressures below 980 mb, were analyzed to provide generalized typhoon specifications. The hourly position of the center, the central pressure depth, and the radius of maximum cyclostrophic wind were objectively evaluated from surface weather reports. With these evaluations, statistical properties of pressure profiles at the time of landing and their modifications after landing were investigated.

Key words

typhoons, tropical syclones, pressure profile, minimum pressure