瀬戸内海における波浪推算に基づく確率波高の推定

書誌事項

タイトル別名
  • Estimating Return Wave Height in the Seto Inland Sea Based on Wave Hindcasting
  • セトナイカイ ニ オケル ハロウ スイサン ニ モトズク カクリツ ハコウ ノ スイテイ

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抄録

Shallow water wave hindcasting for each of many intense storms in the past 45 years was conducted on 3 sea areas of the Seto Inland Sea using input wind distributions of the wind data acquired at on-land meteorological stations around the Inland Sea. A high quality of wave hindcasting is ensured by a reasonable agreement between the measurements and hindcasts for many cases of the peak wave height during any given storm. Extreme value analysis yields an estimate of 50-year return wave height in the areas (H50) and the H50 value ranges from 10 to 12 m in the outer area connecting to the open ocean and from 3 to 8 m in the inner area depending greatly on the topological situations. Also the effects of AM or POT-based data extraction method data period length and other factors on the estimate of H50 are discussed.

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