Response of Pacific subtropical-tropical thermocline water pathways and transports to global warming

IOCAS-IR > 海洋环流与波动重点实验室

	Response of Pacific subtropical-tropical thermocline water pathways and transports to global warming
	Luo Yiyong; Rothstein Lewis M.; Zhang Ronghua
	2009-02-17
发表期刊	GEOPHYSICAL RESEARCH LETTERS
期号	36 页码:L04601
摘要	Global warming may change the thermocline water pathways and transports from the subtropics to the tropics in the Pacific Ocean, which are known to have profound implications for the El Nino-Southern Oscillation (ENSO) and thereby global climate. This study investigates the changes by comparing solutions between a present-day climate and a future, warmer climate from a set of Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) models. As the climate warms, although the total transport from the subtropics to the tropics exhibits no significant change, transport via western boundary pathways increases and via interior pathways decreases. This shift is due to high potential vorticity (PV) zones that extend further westward, thus dynamically guiding thermocline water away from interior pathways to prefer western boundary pathways from the subtropics to the tropics. Additionally, a warmer climate induces a large temperature increase near the sea surface in the eastern tropics and a significantly enhanced Equatorial Undercurrent (EUC) in the western and central Pacific; the former is related to the decreased transport through interior pathways and the latter is linked to the increased transport through western boundary pathways. Implications of the results of this study are also discussed.
关键词	Meridional Overturning Circulation Ocean Climate
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/18179
专题	海洋环流与波动重点实验室
推荐引用方式 GB/T 7714	Luo Yiyong,Rothstein Lewis M.,Zhang Ronghua. Response of Pacific subtropical-tropical thermocline water pathways and transports to global warming[J]. GEOPHYSICAL RESEARCH LETTERS,2009(36):L04601.
APA	Luo Yiyong,Rothstein Lewis M.,&Zhang Ronghua.(2009).Response of Pacific subtropical-tropical thermocline water pathways and transports to global warming.GEOPHYSICAL RESEARCH LETTERS(36),L04601.
MLA	Luo Yiyong,et al."Response of Pacific subtropical-tropical thermocline water pathways and transports to global warming".GEOPHYSICAL RESEARCH LETTERS .36(2009):L04601.

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