气候变化领域集成服务门户(CCPortal): Two tropical routes for the remote influence of the northern tropical atlantic on the indo-western pacific summer climate

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DOI	10.1175/JCLI-D-20-0503.1
	Two tropical routes for the remote influence of the northern tropical atlantic on the indo-western pacific summer climate
	Takaya Y.; Saito N.; Ishikawa I.; Maeda S.
发表日期	2021
ISSN	08948755
起始页码	1619
结束页码	1634
卷号	34 期号:5
英文摘要	This study investigates the influence of sea surface temperature (SST) in the northern tropical Atlantic (NTA) on the Indo-western Pacific summer climate by analyzing record-high NTA SSTs in summer 2010. In that time, a decaying El Niño and developing La Niña were accompanied by widespread anomalous climate conditions in the Indo-western Pacific. These conditions are typical of summers that follow El Niño events and are often explained as being due to the influence of Indian Ocean warming induced by El Niños. Meanwhile, the record-high NTA SSTs that resulted from the influence of El Niño, the negative phase of the North Atlantic Oscillation and the interdecadal-and-longer NTA SST variability are one of the possible causes of anomalous conditions in the Indo-western Pacific. The results of sensitivity experiments using a coupled atmosphere-ocean model clearly indicate that the high NTA SSTs had a considerable influence on the summer weather in the Indo-western Pacific via two tropical routes: an eastbound route that involved a reinforcement of the atmospheric equatorial Kelvin wave and a westbound route that involved altering the Walker circulation over the Atlantic-Pacific region. The altered Walker circulation facilitated the transition to La Niña, amplifying the impact on the western North Pacific monsoon. Further evaluation reveals that both the interannual and interdecadal-and-longer variability of the NTA SST contributed to the anomalous Indo-western Pacific summer. The results highlight the interannual to multidecadal predictability of the Indo-western Pacific summer climate that originates in the NTA. © 2021 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).
英文关键词	Atmosphere-ocean interaction; Coupled models; El Nino; Interannual variability; Monsoons
语种	英语
scopus关键词	Atmospheric pressure; Atmospheric thermodynamics; Surface waters; Tropics; Anomalous climate; Atmosphere-ocean modeling; North Atlantic oscillations; Sea surface temperature (SST); Tropical atlantic; Walker circulation; Western North Pacific; Western Pacific; Oceanography; air-sea interaction; annual variation; atmosphere-ocean coupling; climate conditions; El Nino; Kelvin wave; La Nina; monsoon; North Atlantic Oscillation; sea surface temperature; summer; Atlantic Ocean; Atlantic Ocean (Tropical); Indian Ocean
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178698
作者单位	Meteorological Research Institute, Japan Meteorological Agency, Ibaraki, Japan; Aerological Observatory, Japan Meteorological Agency, Ibaraki, Japan
推荐引用方式 GB/T 7714	Takaya Y.,Saito N.,Ishikawa I.,et al. Two tropical routes for the remote influence of the northern tropical atlantic on the indo-western pacific summer climate[J],2021,34(5).
APA	Takaya Y.,Saito N.,Ishikawa I.,&Maeda S..(2021).Two tropical routes for the remote influence of the northern tropical atlantic on the indo-western pacific summer climate.Journal of Climate,34(5).
MLA	Takaya Y.,et al."Two tropical routes for the remote influence of the northern tropical atlantic on the indo-western pacific summer climate".Journal of Climate 34.5(2021).