气候变化领域集成服务门户(CCPortal): A global analysis of austral summer ocean wave variability during SAM

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DOI	10.1007/s00382-020-05217-2
	A global analysis of austral summer ocean wave variability during SAM–ENSO phase combinations
	Godoi V.A.; Torres Júnior A.R.
发表日期	2020
ISSN	0930-7575
起始页码	3991
结束页码	4004
卷号	54
英文摘要	Anticipating and mitigating wave-related hazards rely heavily on understanding wave variability drivers. Here, we describe wave conditions related to concurrent Southern Annular Mode (SAM) and El Niño–Southern Oscillation (ENSO) phases during the austral summer. To identify such conditions, significant wave height (Hs) and peak wave period (Tp) daily anomalies were composited during different SAM–ENSO phase combinations over the last four decades (1979–2018). Surface wind anomalies were also composited to assist in the interpretation of wave conditions. The composites show significant wave variability across all ocean basins and in several semi-enclosed seas throughout the different SAM–ENSO phase combinations. The Southern, Indian, and Pacific Oceans generally experience the strongest Tp anomalies during combinations of SAM phases with El Niño, and the weakest Tp anomalies during combinations of SAM phases with La Niña. The anomalously large waves observed in the south-western Pacific, Tasman Sea, and the Southern Ocean, previously ascribed to ENSO conditions, seem to be instead associated with the SAM variability. SAM-related atmospheric conditions are found to be able to modulate the intensity of ENSO-related winds over the South China Sea, which, in turn, alter the magnitude of waves in that region. These and other wave anomaly structures described here, especially those contrasting the behaviour expected for a given ENSO phase, such as the one found along the California coast, stress the importance of understanding relationships between wave parameters and climate patterns interactions. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Climate patterns; El Niño–Southern Oscillation (ENSO); Global wave climate; SAM–ENSO interactions; Southern Annular Mode (SAM); Wave variability
语种	英语
scopus关键词	atmospheric dynamics; atmospheric wave; El Nino-Southern Oscillation; ocean wave; seasonal variation; temperature effect; wave height; Pacific Ocean; South China Sea
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145494
作者单位	Marine Science Institute (ICMar), Federal University of Maranhão, Av. dos Portugueses, 1966, São Luís, 65080-805, Brazil
推荐引用方式 GB/T 7714	Godoi V.A.,Torres Júnior A.R.. A global analysis of austral summer ocean wave variability during SAM–ENSO phase combinations[J],2020,54.
APA	Godoi V.A.,&Torres Júnior A.R..(2020).A global analysis of austral summer ocean wave variability during SAM–ENSO phase combinations.Climate Dynamics,54.
MLA	Godoi V.A.,et al."A global analysis of austral summer ocean wave variability during SAM–ENSO phase combinations".Climate Dynamics 54(2020).