PROBABILISTIC STORM SURGE INUNDATION ESTIMATION ALONG IBARAKI PREFECTURE COAST BY USING REGIONAL FREQUENCY ANALYSIS METHOD
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- MAKINO Kohei
- 株式会社エコー 構造設計部
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- NOBUOKA Hisamichi
- 茨城大学 工学部都市システム工学科
Bibliographic Information
- Other Title
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- 地域頻度解析手法を用いた茨城県沿岸における確率的な高潮浸水想定
- チイキ ヒンド カイセキ シュホウ オ モチイタ イバラキケン エンガン ニ オケル カクリツテキ ナ タカシオ シンスイ ソウテイ
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Abstract
The purposes of this study are considering to reduce the statistical variability of the region to target storm surge disaster for the prediction of that probabilistic storm surge inundation area by using the regional frequency analysis in coastal areas. It was possible to select a function that summarized variation between adjacent tide level observation points by using regional common distribution. Considering the regional classification of five points from Onahama port to the Chiba port including Ibaraki Prefecture coast in Japan by the regional frequency analysis. The results of extreme statistical analysis for various storm surge showed us that it was possible to reduce the statistical variability of the extreme value data at Oarai Port and Choshi Port by using the regional frequency analysis. The results of the probabilistic inundation area for each return period by using an numerical simulation of storm surge, also showed that it was possible to restrain the local variation by the regional frequency analysis and to predict average inundation in the Ibaraki Prefecture coast.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 72 (2), I_193-I_198, 2016
Japan Society of Civil Engineers