EVALUATING THE CHANGES IN THE CHARACTERISTICS OF CENTRAL ATMOSPHERIC PRESSURE AND SPEED BASED ON THE DIFFERENCES IN TYPHOON TRACKS FOR DEVELOPING TYPHOON MODELS

Abstract

 The aim of this study is to evaluate the changes in the characteristics of central atmospheric pressure and speed based on the differences in typhoon tracks and to develop typhoon models necessary for preparing prediction maps for the largest storm-surge inundation areas.
 The study reveals two features. The first is that the atmospheric pressure of typhoons that pass through the western region of Tsushima straits is higher than that of the eastern region and that the minimum pressure for the region spanning the latitudes between 34°N to 38°N is 940 hPa. The second observation is that the speed of movement is preferably either 96 km/h (the second Muroto Typhoon) or 73 km/h (the Ise Bay Typhoon) in some coastal areas spanning the Hokkaido, Tohoku, and Hokuriku regions.