首页|Long-Term Extreme Wave Characteristics in the Water Adjacent to China Based on ERA5 Reanalysis Data

Long-Term Extreme Wave Characteristics in the Water Adjacent to China Based on ERA5 Reanalysis Data

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Extreme waves have a profound impact on coastal infrastructure;thus,understanding the variation law of risky analysis and disaster prevention in coastal zones is necessary.This paper analyzed the spatiotemporal characteristics of extreme wave heights adjacent to China from 1979 to 2018 based on the ERA5 datasets.Nonstationary extreme value analysis is undertaken in eight repre-sentative points to investigate the trends in the values of 50-and 100-year wave heights.Results show that the mean value of extreme waves is the largest in the eastern part of Taiwan Island and the smallest in the Bohai Sea from 1979 to 2018.Only the extreme wave height in the northeastern part of Taiwan Island shows a significant increase trend in the study area.Nonstationary analysis shows remarkable variations in the values of 50-and 100-year significant wave heights in eight points.Considering the annual mean change,E1,E2,S1,and S2 present an increasing trend,while S3 shows a decreasing trend.Most points for the seasonal mean change demon-strate an increasing trend in spring and winter,while other points show a decreasing trend in summer and autumn.Notably,the E1 point growth rate is large in autumn,which is related to the change in typhoon intensity and the northward movement of the typhoon path.

extreme wave heightNEVAwave climateERA5 reanalysis

DU Wenyan、ZHANG Xuri、SHI Hongyuan、LI Guanyu、ZHOU Zhengqiao、YOU Zaijin、ZHANG Kuncheng

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School of Hydraulic Engineering,Ludong University,Yantai 264025,China

Center for Ports and Maritime Safety(CPMS),Dalian Maritime University,Dalian 116026,China

Yantai Kekan Marine Technology Co.,Ltd.,Yantai 264025,China

Nation Ocean Technology Center,Tianjin 300111,China

Navigation Guarantee Center of South China Sea(NGCS)MOT Guangzhou Hydrographic Center,Guangzhou 510320,China

Institute of Marine Development/Military Teaching Department,School of Marxism,Ocean University of China,Qingdao 266100,China

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Natural Science Foundation of ChinaMajor Research the National Natural Science Foundation of China(NSFC)Major Research the National Natural Science Foundation of China(NSFC)

51909114U1806227U1906231

2024

10.1007/s11802-024-5446-y

中国海洋大学学报(自然科学英文版)
中国海洋大学

中国海洋大学学报(自然科学英文版)

CSTPCD
影响因子：0.268
ISSN：1672-5182
年,卷(期)：2024.23(1)
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