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江蘇沿海臺(tái)風(fēng)暴潮過(guò)程中的波浪增水分布研究

單位：1. 河海大學(xué) 港口、海岸與近海工程學(xué)院, 江蘇南京 210098;
2. 浙江水利科學(xué)研究院, 浙江杭州 310020

關(guān)鍵詞：江蘇沿海風(fēng)暴潮波浪增水臺(tái)風(fēng)

分類號(hào)：P731.23

出版年·卷·期（頁(yè)碼）：2022·39·第一期（48-55）

摘要：

基于淺水方程和第三代波浪模型，構(gòu)建了江蘇沿海的風(fēng)暴潮和臺(tái)風(fēng)浪耦合模型，并通過(guò)對(duì)天文潮、風(fēng)暴潮和臺(tái)風(fēng)浪的模擬對(duì)模型進(jìn)行驗(yàn)證。通過(guò)比較6場(chǎng)典型臺(tái)風(fēng)過(guò)程中江蘇沿海的波浪增水特征，剖析了江蘇沿海波浪增水的量級(jí)及空間分布特征。研究表明：受岸灘地形控制，不同臺(tái)風(fēng)暴潮期間江蘇沿海最大波浪增水分布呈現(xiàn)類似特征，總體上，江蘇中部和南部沿海及近海淺灘波浪最大增水較為顯著，可達(dá)0.2 m以上；由于波生流會(huì)受岸線地形影響，岸線凹陷處較易產(chǎn)生更大的波浪增水，個(gè)別地區(qū)最大波浪增水高于0.4 m。

Based on the shallow water equation and the third-generation wave model, a coupled model is set up to simulate storm surge and typhoon waves along the coast of Jiangsu Province. The model is verified by comparing the simulated and measured astronomical tidal, storm surge and typhoon waves. By comparing the characteristics of wave-induced setup along the coast of Jiangsu Province during six typical typhoon processes, the magnitude and spatial distribution of wave-induced setup along the coast of Jiangsu Province are analyzed. The results show that the distribution patterns of the maximum wave-induced setup along the coast of Jiangsu Province during different storm surge processes are similar under the control of nearshore bathymetry. In general, the maximum wave-induced setup is significant in the coastal and offshore shoals of central and southern Jiangsu Province with the maximum setup over 0.2 m. Larger wave-induced setup with the maximum value over 0.4 m is more likely to occur in the area with concaved shorelines due to the influence of shoreline topography on wavegenerated current.

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