DOI: 10.1007/s00382-019-05065-9
论文题名: What happens to the ocean surface gravity waves when ENSO and MJO phases combine during the extended boreal winter?
作者: Godoi V.A. ; de Andrade F.M. ; Durrant T.H. ; Torres Júnior A.R.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2020
卷: 54, 期: 2020-03-04 语种: 英语
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
Scopus关键词: climate change
; climate variation
; El Nino-Southern Oscillation
; gravity wave
; Madden-Julian oscillation
; sea surface
; Pacific Ocean
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159691
Appears in Collections: 气候变化与战略
There are no files associated with this item.
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
Recommended Citation:
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]. Climate Dynamics,2020-01-01,54(2020-03-04)