气候变化领域集成服务门户(CCPortal): Hydrological cycle amplification reshapes warming-driven oxygen loss in the Atlantic Ocean

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DOI	10.1038/s41558-023-01897-w
	Hydrological cycle amplification reshapes warming-driven oxygen loss in the Atlantic Ocean
	Hogikyan, Allison; Resplandy, Laure; Liu, Maofeng; Vecchi, Gabriel
发表日期	2024
ISSN	1758-678X
EISSN	1758-6798
英文摘要	The loss of oxygen from the ocean due to warming is not ubiquitous. In the Atlantic Ocean above 1 km depth, there is oxygen loss at subpolar latitudes, but there has been no oxygen loss or gain in the subtropics over the past six decades. Here we show that the amplification of the hydrological cycle, a response to climate change that results in a 'salty-get-saltier, fresh-get-fresher' sea surface salinity pattern, influences ocean ventilation and introduces a spatial pattern in the rate of climate change-driven oxygen loss in an Earth system model. A salinification enhances ventilation of (already salty) mode waters that outcrop in the subtropics and opposes warming-driven oxygen loss, while a freshening reduces ventilation of (already fresh) deep waters that outcrop at subpolar latitudes and accelerates oxygen loss. These results suggest that climate change introduces patterns of oxygenation through surface salinity changes, key to understanding observed and future regional changes. Oxygen loss has been observed in the world's oceans, due mainly to warming temperatures that reduce oxygen solubility and increase stratification. This study shows climate-induced salinity changes also impact oxygen patterns with effects either accelerating or counteracting warming-driven changes.
英文关键词	NORTH-ATLANTIC; DEOXYGENATION; TEMPERATURE; VARIABILITY; SIMULATION; SALINITY; DECLINE; SYSTEM; CIRCULATION; FORMULATION
WOS研究方向	Environmental Sciences ; Environmental Studies ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:001138116400001
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/282398
作者单位	National Oceanic Atmospheric Admin (NOAA) - USA; Princeton University; Princeton University; Princeton University; University of Miami
推荐引用方式 GB/T 7714	Hogikyan, Allison,Resplandy, Laure,Liu, Maofeng,et al. Hydrological cycle amplification reshapes warming-driven oxygen loss in the Atlantic Ocean[J],2024.
APA	Hogikyan, Allison,Resplandy, Laure,Liu, Maofeng,&Vecchi, Gabriel.(2024).Hydrological cycle amplification reshapes warming-driven oxygen loss in the Atlantic Ocean.Nature Climate Change.
MLA	Hogikyan, Allison,et al."Hydrological cycle amplification reshapes warming-driven oxygen loss in the Atlantic Ocean".Nature Climate Change (2024).