DOI: 10.1007/s00382-012-1628-1
Scopus记录号: 2-s2.0-84891635105
论文题名: Influence of Indian Ocean Dipole and Pacific recharge on following year's El Niño: Interdecadal robustness
作者: Izumo T. ; Lengaigne M. ; Vialard J. ; Luo J.-J. ; Yamagata T. ; Madec G.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 42, 期: 2017-01-02 起始页码: 291
结束页码: 310
语种: 英语
英文关键词: Air-sea interactions
; El Niño-Southern Oscillation (ENSO)
; Indian and Asian monsoons
; Indian Ocean basin-wide warming/cooling (IOBW)
; Indian Ocean Dipole
; Interannual and interdecadal climate variability and predictability
; Observational uncertainties
; Tropical Indo-Pacific
; Tropical Tropospheric Biennial Oscillation (TBO)
; Walker circulation
; Warm Water Volume (WWV) recharge-discharge of the equatorial Pacific Ocean
英文摘要: The Indian Ocean Dipole (IOD) can affect the El Niño-Southern Oscillation (ENSO) state of the following year, in addition to the well-known preconditioning by equatorial Pacific Warm Water Volume (WWV), as suggested by a study based on observations over the recent satellite era (1981-2009). The present paper explores the interdecadal robustness of this result over the 1872-2008 period. To this end, we develop a robust IOD index, which well exploits sparse historical observations in the tropical Indian Ocean, and an efficient proxy of WWV interannual variations based on the temporal integral of Pacific zonal wind stress (of a historical atmospheric reanalysis). A linear regression hindcast model based on these two indices in boreal fall explains 50 % of ENSO peak variance 14 months later, with significant contributions from both the IOD and WWV over most of the historical period and a similar skill for El Niño and La Niña events. Our results further reveal that, when combined with WWV, the IOD index provides a larger ENSO hindcast skill improvement than the Indian Ocean basin-wide mode, the Indian Monsoon or ENSO itself. Based on these results, we propose a revised scheme of Indo-Pacific interactions. In this scheme, the IOD-ENSO interactions favour a biennial timescale and interact with the slower recharge-discharge cycle intrinsic to the Pacific Ocean. © 2013 Springer-Verlag Berlin Heidelberg. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54446
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: University of Tokyo, Tokyo, Japan; Laboratoire d'Océanographie: Expérimentation et Approches Numériques (LOCEAN), IRD, CNRS, UPMC, Case 100, 4 Place Jussieu, 75252 Paris Cedex 05, France; Application Laboratory, JAMSTEC, Yokohama, Japan; CAWCR, Bureau of Meteorology, Melbourne, Australia; National Oceanographic Centre, Southampton, United Kingdom; Research Institute for Global Change, JAMSTEC, Yokohama, Japan
Recommended Citation:
Izumo T.,Lengaigne M.,Vialard J.,et al. Influence of Indian Ocean Dipole and Pacific recharge on following year's El Niño: Interdecadal robustness[J]. Climate Dynamics,2014-01-01,42(2017-01-02)