HINDCASTING OF SURGE AND WAVE ON HOKKAIDO COASTS BY WINTER LOW PRESSURE SYSTEM USING SURGE-WAVE COUPLED SEA BOTTOM AND SURFACE STRESSES IN SUWAT

  • Kenzo Kumagai
  • Sooyoul Kim
  • Daiki Tsujio
  • Mase Hajime
  • Takahito Tsuji

Abstract

Typhoon-induced storm surge can cause catastrophic consequences in low-lying city areas on coasts. From the historical observations, it is found that Winter Low Pressure System (WLPS) has impacts similar to a typhoon in terms of surge and wave generation. For instance, from 16th to 17th in December 2014, a winter low pressure system of 951 hPa occurred in Hokkaido, Japan, generated a surge of 1.75 m high and flooded many low-lying regions on the Kushiro coast. This was the record-break surge level due to WLPS in Japan, since the WLPS-induced surge of 0.9 m was recorded in 1994.
Published
2018-12-30
How to Cite
Kumagai, K., Kim, S., Tsujio, D., Hajime, M., & Tsuji, T. (2018). HINDCASTING OF SURGE AND WAVE ON HOKKAIDO COASTS BY WINTER LOW PRESSURE SYSTEM USING SURGE-WAVE COUPLED SEA BOTTOM AND SURFACE STRESSES IN SUWAT. Coastal Engineering Proceedings, 1(36), waves.74. https://doi.org/10.9753/icce.v36.waves.74