气候变化领域集成服务门户(CCPortal): The decrease in ocean heat transport in response to global warming

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DOI	10.1038/s41558-023-01829-8
	The decrease in ocean heat transport in response to global warming
	Mecking, Jennifer V.; Drijfhout, Sybren S.
发表日期	2023
ISSN	1758-678X
EISSN	1758-6798
英文摘要	The ocean is taking up additional heat but how this affects ocean circulation and heat transport is unclear. Here, using coupled model intercomparison project phase 5/6 (CMIP5/6) climate projections, we show a future decrease in poleward ocean heat transport (OHT) across all Northern Hemisphere latitudes and south of 10 degrees S. Most notably, the CMIP5/6 multimodel mean reduction in poleward OHT for the Atlantic at 26.5 degrees N and Indo-Pacific at 20 degrees S is 0.093-0.304 PW and 0.097-0.194 PW, respectively, dependent on scenario and CMIP phase. These changes in OHT are driven by decline in overturning circulation dampened by upper ocean warming. In the Southern Ocean, the reduction in poleward OHT at 55 degrees S is 0.071-0.268 PW. The projected changes are stronger in CMIP6, even when corrected for its larger climate sensitivity. This is especially noticable in the Atlantic Ocean for the weaker forcing scenarios (shared socioeconomic pathway SSP 1-2.6/representative concentration pathways RCP 2.6), where the decrease is 2.5 times larger at 26.5 degrees N due to a stronger decline in the Atlantic meridional overturning circulation. Projections of ocean heat transport show a decrease which is driven by a decline in overturning circulation. Such a decrease in ocean heat transport can dampen the global warming signal in Northwest Europe.
英文关键词	EDDY SATURATION; ATLANTIC; EXPORT; MODEL; AMOC; FLUX
WOS研究方向	Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001085301300002
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/282505
作者单位	NERC National Oceanography Centre; NERC National Oceanography Centre; University of Southampton; Royal Netherlands Meteorological Institute; Utrecht University
推荐引用方式 GB/T 7714	Mecking, Jennifer V.,Drijfhout, Sybren S.. The decrease in ocean heat transport in response to global warming[J],2023.
APA	Mecking, Jennifer V.,&Drijfhout, Sybren S..(2023).The decrease in ocean heat transport in response to global warming.Nature Climate Change.
MLA	Mecking, Jennifer V.,et al."The decrease in ocean heat transport in response to global warming".Nature Climate Change (2023).