气候变化领域集成服务门户(CCPortal): North Pacific subtropical mode water is controlled by the Atlantic Multidecadal Variability

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DOI	10.1038/s41558-020-0692-5
	North Pacific subtropical mode water is controlled by the Atlantic Multidecadal Variability
	Wu B.; Lin X.; Yu L.
发表日期	2020
ISSN	1758678X
卷号	10 期号:3
英文摘要	North Pacific subtropical mode water, a vertically homogeneous thermocline water mass, occupies the entire subtropical Western Pacific Ocean. It transports mass, heat and nutrients from the surface to the subsurface ocean, providing memory of climate variability1–11. Decadal variability of the mode water temperature has been attributed to the Pacific Decadal Oscillation (PDO)2,3,12,13, but this is based on short data records. Here, using long records of observations, we show that decadal-to-multidecadal variability of the mode water mean temperature is instead controlled by the Atlantic Multidecadal Variability (AMV). During an AMV-positive phase, warm sea surface temperatures (SSTs) in the North Atlantic Ocean weaken the subtropical North Pacific westerlies; the associated anomalous easterlies in the subtropical west Pacific4,5 drive a northward Ekman transport of warm water to the mode water formation area. Subduction of the warm water increases mode water temperature, influencing Northwestern Pacific upper ocean heat content and fish catches. A long pre-industrial model simulation with multiple AMV cycles and a pacemaker experiment support this mechanism—the AMV forcing alone can drive decadal variability of the mode water. Thus, the AMV provides important memory for prediction of decadal climate and ecosystem variability in the Pacific Ocean. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/124213
作者单位	Frontier Science Center for Deep Ocean Multispheres and Earth System (FDOMES) and Laboratory of Physical Oceanography, Ocean University of China, Qingdao, China; Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
推荐引用方式 GB/T 7714	Wu B.,Lin X.,Yu L.. North Pacific subtropical mode water is controlled by the Atlantic Multidecadal Variability[J],2020,10(3).
APA	Wu B.,Lin X.,&Yu L..(2020).North Pacific subtropical mode water is controlled by the Atlantic Multidecadal Variability.Nature Climate Change,10(3).
MLA	Wu B.,et al."North Pacific subtropical mode water is controlled by the Atlantic Multidecadal Variability".Nature Climate Change 10.3(2020).