气候变化领域集成服务门户(CCPortal): A Partial Coupling Method to Isolate the Roles of the Atmosphere and Ocean in Coupled Climate Simulations

CCPortal

DOI	10.1029/2019MS002016
	A Partial Coupling Method to Isolate the Roles of the Atmosphere and Ocean in Coupled Climate Simulations
	Garuba O.A.; Rasch P.J.
发表日期	2020
ISSN	19422466
卷号	12 期号:9
英文摘要	This study describes the formulation and application of a partial coupling method that disentangles the coupling between the atmosphere and ocean and isolates the atmosphere- and ocean-driven components of the coupled climate interactions. In contrast to strategies using stand-alone simulations with prescribed atmosphere or ocean states, the climate components in the partially coupled method remain coupled, but the impact of ocean circulation changes is removed from the air-sea interaction using temperature-like tracers. The partially coupled simulation thereby suppresses the ocean-driven interaction and isolates an atmosphere-driven interaction only. The ocean-driven component can be inferred by comparing climate response in the partially coupled simulation with that of a standard fully coupled one. The partial coupling approach is applied to decompose the fully coupled climate response to CO2 quadrupling into atmosphere- and ocean-driven components. The linearity of the decomposition is validated by simulating the ocean-driven response using another complimentary partially coupled simulation forced only with the atmosphere-driven anomalous surface fluxes. A comparison of the two partially coupled simulations with the fully coupled simulation indicates that the sum of the atmosphere- and ocean-driven components accurately describes the fully coupled response. The decomposition identifies several robust atmosphere- and ocean-driven features of the global warming and provides new insights into the impacts of atmospheric feedbacks on the Atlantic overturning circulation and sea ice response to CO2 increase. © 2020. The Authors.
英文关键词	air-sea interaction; coupled climate modeling; ocean general circulation; ocean-atmosphere interaction; partial coupling; passive tracers
语种	英语
scopus关键词	Carbon dioxide; Global warming; Sea ice; Air sea interactions; Atmospheric feedbacks; Climate response; Climate simulation; Coupled simulation; Coupling methods; Ocean circulation; Overturning circulation; Oceanography; air-sea interaction; atmosphere-ocean coupling; global warming; sea ice
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/156651
作者单位	Pacific Northwest National Laboratory, Richland, WA, United States
推荐引用方式 GB/T 7714	Garuba O.A.,Rasch P.J.. A Partial Coupling Method to Isolate the Roles of the Atmosphere and Ocean in Coupled Climate Simulations[J],2020,12(9).
APA	Garuba O.A.,&Rasch P.J..(2020).A Partial Coupling Method to Isolate the Roles of the Atmosphere and Ocean in Coupled Climate Simulations.Journal of Advances in Modeling Earth Systems,12(9).
MLA	Garuba O.A.,et al."A Partial Coupling Method to Isolate the Roles of the Atmosphere and Ocean in Coupled Climate Simulations".Journal of Advances in Modeling Earth Systems 12.9(2020).