气候变化领域集成服务门户(CCPortal): Surface Flux Drivers for the Slowdown of the Atlantic Meridional Overturning Circulation in a High-Resolution Global Coupled Climate Model

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DOI	10.1029/2018MS001447
	Surface Flux Drivers for the Slowdown of the Atlantic Meridional Overturning Circulation in a High-Resolution Global Coupled Climate Model
	Putrasahan D.A.; Lohmann K.; von Storch J.-S.; Jungclaus J.H.; Gutjahr O.; Haak H.
发表日期	2019
ISSN	19422466
起始页码	1349
结束页码	1363
卷号	11 期号:5
英文摘要	This paper investigates the causation for the decline of the Atlantic Meridional Overturning Circulation (AMOC) from approximately 17 Sv to about 9 Sv, when the atmospheric resolution of the Max Planck Institute-Earth System Model is enhanced from ∼1° to ∼0.5°. The results show that the slowdown of the AMOC is caused by the cessation of deep convection. In most modeling studies, this is thought to be controlled by buoyancy fluxes in the convective regions, for example, by surface freshwater flux that is introduced locally or via enormous input from glacier or iceberg melts. While we find that freshwater is still the key to the reduction of AMOC seen in the higher-resolution run, the freshening of the North Atlantic does not need to be directly caused by local freshwater fluxes. Instead, it can be caused indirectly through winds via a reduced wind-driven gyre circulation and salinity transport associated to this circulation, as seen in the higher-resolution run. ©2019. The Authors.
英文关键词	Atlantic Meridional Overturning Circulation; flux correction in a coupled system; high-resolution global coupled climate model; Wind stress effect
语种	英语
scopus关键词	Climate models; Sea ice; Water; Atlantic meridional overturning circulations; Coupled climate model; Coupled systems; Earth system model; Freshwater fluxes; Higher resolution; Max Planck Institute; Stress effects; Oceanography; buoyancy; climate modeling; convection; gyre; iceberg; meridional circulation; oceanic circulation; overturn; surface flux; wind stress; Atlantic Ocean; Atlantic Ocean (North)
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156913
作者单位	Max Planck Institute for Meteorology, Hamburg, Germany
推荐引用方式 GB/T 7714	Putrasahan D.A.,Lohmann K.,von Storch J.-S.,et al. Surface Flux Drivers for the Slowdown of the Atlantic Meridional Overturning Circulation in a High-Resolution Global Coupled Climate Model[J],2019,11(5).
APA	Putrasahan D.A.,Lohmann K.,von Storch J.-S.,Jungclaus J.H.,Gutjahr O.,&Haak H..(2019).Surface Flux Drivers for the Slowdown of the Atlantic Meridional Overturning Circulation in a High-Resolution Global Coupled Climate Model.Journal of Advances in Modeling Earth Systems,11(5).
MLA	Putrasahan D.A.,et al."Surface Flux Drivers for the Slowdown of the Atlantic Meridional Overturning Circulation in a High-Resolution Global Coupled Climate Model".Journal of Advances in Modeling Earth Systems 11.5(2019).