气候变化领域集成服务门户(CCPortal): Co-existing climate attractors in a coupled aquaplanet

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DOI	10.1007/s00382-019-04926-7
	Co-existing climate attractors in a coupled aquaplanet
	Brunetti M.; Kasparian J.; Vérard C.
发表日期	2019
ISSN	0930-7575
起始页码	6293
结束页码	6308
卷号	53 期号:2020-09-10
英文摘要	The first step in exploring the properties of dynamical systems like the Earth climate is to identify the different phase space regions where the trajectories asymptotically evolve, called ‘attractors’. In a given system, multiple attractors can co-exist under the effect of the same forcing. At the boundaries of their basins of attraction, small changes produce large effects. Therefore, they are key regions for understanding the system response to perturbations. Here we prove the existence of up to five attractors in a simplified climate system where the planet is entirely covered by the ocean (aquaplanet). These attractors range from a snowball to a hot state without sea ice, and their exact number depends on the details of the coupled atmosphere–ocean–sea ice configuration. We characterise each attractor by describing the associated climate feedbacks, by using the principal component analysis, and by measuring quantities borrowed from the study of dynamical systems, namely instantaneous dimension and persistence. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Attractors; Complexity; Coupled aquaplanet; GCM
语种	英语
scopus关键词	atmosphere-ocean coupling; climate feedback; complexity; general circulation model; ocean; perturbation; principal component analysis; sea ice; trajectory
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145869
作者单位	Institute for Environmental Sciences and Group of Applied Physics, University of Geneva, 66 Bd Carl-Vogt, Geneva, 1205, Switzerland; Section of Earth and Environmental Sciences, University of Geneva, 13 Rue des Maraîchers, Geneva, 1205, Switzerland
推荐引用方式 GB/T 7714	Brunetti M.,Kasparian J.,Vérard C.. Co-existing climate attractors in a coupled aquaplanet[J],2019,53(2020-09-10).
APA	Brunetti M.,Kasparian J.,&Vérard C..(2019).Co-existing climate attractors in a coupled aquaplanet.Climate Dynamics,53(2020-09-10).
MLA	Brunetti M.,et al."Co-existing climate attractors in a coupled aquaplanet".Climate Dynamics 53.2020-09-10(2019).