气候变化领域集成服务门户(CCPortal): El Niño-Southern Oscillation Impacts on Global Wave Climate and Potential Coastal Hazards

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DOI	10.1029/2020JC016464
	El Niño-Southern Oscillation Impacts on Global Wave Climate and Potential Coastal Hazards
	Odériz I.; Silva R.; Mortlock T.R.; Mori N.
发表日期	2020
ISSN	21699275
卷号	125 期号:12
英文摘要	Wave direction and wave power are the main climate-related drivers of large-scale coastal morphological hazards on open sandy coastlines. El Niño-Southern Oscillation (ENSO) is the main climate driver affecting global wave climates on interannual timescales. Hence, a quantification of wave climate variability with ENSO would aid the characterization of coastal risk as a first-pass assessment tool. However, no such data are available on the global scale at present. To address this, this work (1) quantifies ENSO impacts on global mean wave direction and wave power, and (2) classifies the global coast according to the ENSO wave climate hazard. The correlation coefficient (R) of the Multivariate ENSO Index between wave power and mean wave direction was calculated. Then, employing a multivariate technique, the resulting R values were used to classify the global coastlines. The results show that ENSO has distinct latitudinal impacts around the world. El Niño increases the wave power of swells generated in the extra-tropics which propagate toward the tropics, a phenomenon which is particularly notable in the Pacific Basin, while the most significant rotations in wave direction with ENSO occur at tropical and subtropical latitudes. Based on this new information, the global coastline was classified into five distinct types, depending on the directional wave climate response to ENSO. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	coastal hazards; ENSO; wave climate
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186539
作者单位	Institute of Engineering of National Autonomous University of Mexico, Mexico City, Mexico; Risk Frontiers (RF), Sydney, Australia; Department of Earth and Environmental Sciences, Macquarie University (MQ), Sydney, Australia; Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan
推荐引用方式 GB/T 7714	Odériz I.,Silva R.,Mortlock T.R.,et al. El Niño-Southern Oscillation Impacts on Global Wave Climate and Potential Coastal Hazards[J],2020,125(12).
APA	Odériz I.,Silva R.,Mortlock T.R.,&Mori N..(2020).El Niño-Southern Oscillation Impacts on Global Wave Climate and Potential Coastal Hazards.Journal of Geophysical Research: Oceans,125(12).
MLA	Odériz I.,et al."El Niño-Southern Oscillation Impacts on Global Wave Climate and Potential Coastal Hazards".Journal of Geophysical Research: Oceans 125.12(2020).