基于非對稱臺風(fēng)風(fēng)場的風(fēng)暴潮模擬研究

作者：邱超1  劉暢2  王淑英1  陳永平3

單位：1. 浙江省水文管理中心, 浙江 杭州 310027; 2. 浙江省水利河口研究院(浙江省海洋規(guī)劃設(shè)計研究院), 浙江 杭州 310020; 3. 河海大學(xué)港口海岸與近海工程學(xué)院, 江蘇 南京 210098

關(guān)鍵詞：最大風(fēng)速半徑 非對稱風(fēng)場 風(fēng)暴潮 數(shù)值模擬

分類號：P731.23

出版年·卷·期（頁碼）：2025·42·第四期（1-10）

摘要：

在對2001—2021年西北太平洋熱帶氣旋最大風(fēng)速半徑特征分析的基礎(chǔ)上，基于最優(yōu)風(fēng)速半徑Lin&Fang公式，提出了與方位角相關(guān)的四象限非對稱最大風(fēng)速半徑計算公式。選取影響浙江沿海的4場歷史臺風(fēng)（臺風(fēng)“菲特”、“馬勒卡”、“摩羯”、“利奇馬”）進(jìn)行研究，通過與原始公式計算結(jié)果進(jìn)行對比發(fā)現(xiàn)，四象限非對稱最大風(fēng)速半徑計算公式可以更加準(zhǔn)確地模擬臺風(fēng)風(fēng)速的變化過程，基于該公式得到的風(fēng)暴潮模擬結(jié)果更準(zhǔn)確地反映了臺風(fēng)期間浙江沿海地區(qū)的最大風(fēng)暴增水過程。

Based on the analysis of maximum wind speed radius of tropical cyclones in the Northwest Pacific from 2001 to 2021, a four-quadrant asymmetric maximum wind speed radius calculation formula relying on azimuth angle is proposed based on the optimal wind speed radius formula of Lin&Fang. Four historical typhoons（ "Fitow", "Malakas", "Yagi", "Lekima"） affecting the Zhejiang coast are selected to validate the proposed formula in comparison with the original Lin&Fang formula. The results show that the proposed formula simulates the typhoon wind speed change more accurately. The storm surge calculation using the proposed formula products more accurate maximum storm surge along the Zhejiang coast.

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