气候变化领域集成服务门户(CCPortal): AMOC Recovery in a Multicentennial Scenario Using a Coupled Atmosphere-Ocean-Ice Sheet Model

CCPortal

DOI	10.1029/2019GL086810
	AMOC Recovery in a Multicentennial Scenario Using a Coupled Atmosphere-Ocean-Ice Sheet Model
	Ackermann L.; Danek C.; Gierz P.; Lohmann G.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:16
英文摘要	We simulate the two Coupled Model Intercomparison Project scenarios RCP4.5 and RCP8.5, to assess the effects of melt-induced fresh water on the Atlantic meridional overturning circulation (AMOC). We use a newly developed climate model with high resolution at the coasts, resolving the complex ocean dynamics. Our results show an AMOC recovery in simulations run with and without an included ice sheet model. We find that the ice sheet adds a strong decadal variability on the freshwater release, resulting in intervals in which it reduces the surface runoff by high accumulation rates. This compensating effect is missing in climate models without dynamic ice sheets. Therefore, we argue to assess those freshwater hosing experiments critically, which aim to parameterize Greenland's freshwater release. We assume the increasing net evaporation over the Atlantic and the resulting increase in ocean salinity, to be the main driver of the AMOC recovery. ©2020. The Authors.
英文关键词	Glaciers; Ice; Oceanography; Recovery; Water; Accumulation rates; Atlantic meridional overturning circulations; Coupled Model Intercomparison Project; Decadal variability; High resolution; Ice sheet models; Ocean dynamics; Surface runoffs; Climate models; air-sea interaction; climate modeling; decadal variation; evaporation; experimental study; freshwater input; ice sheet; melting; meridional circulation; parameterization; runoff; salinity; scenario analysis; sea ice; Arctic; Greenland; Greenland Ice Sheet
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169916
作者单位	Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany
推荐引用方式 GB/T 7714	Ackermann L.,Danek C.,Gierz P.,et al. AMOC Recovery in a Multicentennial Scenario Using a Coupled Atmosphere-Ocean-Ice Sheet Model[J],2020,47(16).
APA	Ackermann L.,Danek C.,Gierz P.,&Lohmann G..(2020).AMOC Recovery in a Multicentennial Scenario Using a Coupled Atmosphere-Ocean-Ice Sheet Model.Geophysical Research Letters,47(16).
MLA	Ackermann L.,et al."AMOC Recovery in a Multicentennial Scenario Using a Coupled Atmosphere-Ocean-Ice Sheet Model".Geophysical Research Letters 47.16(2020).