Sequential characteristics of tropical cyclone induced winds, surges, currents and waves

IF 4.2 2区工程技术 Q1 ENGINEERING, CIVIL

Coastal Engineering Pub Date : 2025-04-11 DOI:10.1016/j.coastaleng.2025.104755

Zhiheng Yang , Xiaojing Niu

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引用次数: 0

Abstract

Tropical cyclones are common meteorological disasters around Hainan Island. The tropical cyclone induced wind, storm surge, strong currents, and large waves can impose cyclic loads on the foundations of offshore wind turbines, transoceanic bridges and other structures, leading to structural fatigue and even failure. Understanding the sequential characteristics of these dynamic factors are beneficial for better simulating the structural response. This paper studies 807 independent tropical cyclones from 1949 to 2022 through numerical reconstruction. Based on statistics, the paper proposes the duration peak profiles of tropical cyclone induced wind, surge, current and wave. It is found that there are time lags between the profiles' peaks, and are distributed regularly across the sea area. The research shows that storm surges and large waves usually occur ahead of the front of tropical cyclones about 1 h, but the sheltering effect of islands could significantly influence the time lags of storm surges and large waves. Strong currents typically lag behind strong winds, and the time lag of strong currents is complex due to the influence of topography.

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热带气旋引起的风、浪、流和波的顺序特征

热带气旋是海南岛周边常见的气象灾害。热带气旋引发的风、风暴潮、强流、大浪会对海上风电机组、跨洋桥梁等结构的基础施加循环载荷，导致结构疲劳甚至破坏。了解这些动力因素的序列特征有助于更好地模拟结构响应。本文通过数值重建研究了1949 - 2022年807个独立热带气旋。在统计的基础上，提出了热带气旋引起的风、浪、流、波的持续峰值剖面图。结果表明，各剖面峰间存在时间滞后，且在整个海域有规律地分布。研究表明，风暴潮和大浪通常发生在热带气旋锋前1 h左右，但岛屿的遮挡作用会显著影响风暴潮和大浪的时间滞后。强流通常滞后于强风，并且由于地形的影响，强流的时间滞后是复杂的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Coastal Engineering 工程技术-工程：大洋

CiteScore

9.20

自引率

13.60%

发文量

审稿时长

3.5 months

期刊介绍： Coastal Engineering is an international medium for coastal engineers and scientists. Combining practical applications with modern technological and scientific approaches, such as mathematical and numerical modelling, laboratory and field observations and experiments, it publishes fundamental studies as well as case studies on the following aspects of coastal, harbour and offshore engineering: waves, currents and sediment transport; coastal, estuarine and offshore morphology; technical and functional design of coastal and harbour structures; morphological and environmental impact of coastal, harbour and offshore structures.