High Wave and Strong Wind in Seto Inland Sea Generated by Typhoon 9119

• Published in: Oceanography in Japan Vol. 5; no. 5-6; pp. 301 - 310
• Main Authors: Okada, Kozo, Isozaki, Ichiro, Kawamura, Hiroshi, Toba, Yoshiaki
• Format: Journal Article
• Language: Japanese; English
• Published: The Oceanographic Society of Japan 1996
• ISSN: 0916-8362; 2186-3105
• DOI: 10.5928/kaiyou.5.301

The temporal and spatial change in characteristics of wind and wave generated by Typhoon 9119 in Seto Inland Sea is analysed by using the wind and wave prediction models. High waves which attacked the coast of Yamaguchi Prefecture were generated over the outer ocean and invaded through Bungo Strait, growing owing to local gale winds. After the passage of the typhoon, westerly gale winds occurred over the Inland Sea. Associated with these winds, waves suddenly developed and a high wave area initially formed around Hoh-yo Islands. Then, the high wave area moved toward the east and attacked the coast of Ehime Prefecture. These gale winds and high waves caused severe disasters along the coast of the Inland Sea. One of the main causes of the disasters is that the gale winds in the typhoon area are amplified by the local topographic effect, and high waves and storm surges are also amplified by the gale winds. It is also pointed out that salt harm occurred because of gale winds, high waves and small rainfall.