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2018•Coastal Engineering ProceedingsOpen access

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

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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.

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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.

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Available 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.

Key concepts: Storm surge, Typhoon, Surge, Low-pressure area, Hindcast, Climatology, Environmental science, Current (fluid)

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