气候变化领域集成服务门户(CCPortal): What happens to the ocean surface gravity waves when ENSO and MJO phases combine during the extended boreal winter?

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DOI	10.1007/s00382-019-05065-9
	What happens to the ocean surface gravity waves when ENSO and MJO phases combine during the extended boreal winter?
	Godoi V.A.; de Andrade F.M.; Durrant T.H.; Torres Júnior A.R.
发表日期	2020
ISSN	0930-7575
起始页码	1407
结束页码	1424
卷号	54
英文摘要	The safety of vulnerable coastal and offshore infrastructures requires an in-depth understanding of wave variability and climate drivers. We investigate the association of significant wave height (Hs) and peak wave period (Tp) with the co-occurrence of El Niño–Southern Oscillation (ENSO) and the Madden–Julian Oscillation (MJO) at the global scale. We calculate composites of daily anomalies in modelled Hs, Tp, and surface wind for periods of ENSO–MJO phase combinations. Calculations spanned November–March seasons over the period 1979–2018. Wave anomalies are widespread across the world’s oceans, with remarkable strength during several ENSO–MJO phase combinations, demonstrating strong tropic–tropic and tropic-extratropic teleconnections. Positive Hs anomalies are strongest in the Pacific Ocean during El Niño–MJO phase 8, in the Atlantic Ocean during ENSO-neutral-MJO phase 3, and in the Indian Ocean during ENSO-neutral-MJO phase 4. Positive Tp anomalies are strongest in the Pacific Ocean during La Niña–MJO phase 8, in the Atlantic Ocean during El Niño–MJO phase 1, and in the Indian Ocean during El Niño–MJO phase 8. In the Southern Ocean, the strongest Hs anomalies occur during El Niño–MJO phase 8, whereas in the Maritime Continent, they appear during ENSO-neutral-MJO phases 5–6. Despite previous studies finding low correlations of ENSO indices with wave parameters in the North Atlantic, our results suggest that ENSO-related conditions play a significant role in the area when combined with certain MJO-related conditions. This study also reveals that the wave anomalies associated with ENSO–MJO phase combinations can be twice as strong as those found in previous work, related only to the MJO. Therefore, considering multiple concurrent climate patterns in the analysis of wave anomalies is essential to developing more reliable coastal management plans. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Climate patterns; El Niño–Southern Oscillation (ENSO); ENSO–MJO combined activity; Global wave variability; Madden–Julian Oscillation (MJO); Wave climate
语种	英语
scopus关键词	climate change; climate variation; El Nino-Southern Oscillation; gravity wave; Madden-Julian oscillation; sea surface; Pacific Ocean
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/145636
作者单位	Marine Science Institute (ICMar), Federal University of Maranhão, Av. dos Portugueses, 1966, São Luís, 65080-805, Brazil; Department of Meteorology, Harry Pitt Building, University of Reading, Whiteknights Campus, Earley Gate, PO Box 243, Reading, RG6 6BB, United Kingdom; Oceanum Ltd, 7 Bow Street, Raglan, 3225, New Zealand
推荐引用方式 GB/T 7714	Godoi V.A.,de Andrade F.M.,Durrant T.H.,et al. What happens to the ocean surface gravity waves when ENSO and MJO phases combine during the extended boreal winter?[J],2020,54.
APA	Godoi V.A.,de Andrade F.M.,Durrant T.H.,&Torres Júnior A.R..(2020).What happens to the ocean surface gravity waves when ENSO and MJO phases combine during the extended boreal winter?.Climate Dynamics,54.
MLA	Godoi V.A.,et al."What happens to the ocean surface gravity waves when ENSO and MJO phases combine during the extended boreal winter?".Climate Dynamics 54(2020).