气候变化领域集成服务门户(CCPortal): Neutral modes of surface temperature and the optimal ocean thermal forcing for global cooling

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DOI	10.1038/s41612-020-0112-6
	Neutral modes of surface temperature and the optimal ocean thermal forcing for global cooling
	Lu J.; Liu F.; Leung L.R.; Lei H.
发表日期	2020
ISSN	23973722
卷号	3 期号:1
英文摘要	Inquiry into the climate response to external forcing perturbations has been the central interest of climate dynamics. But the understanding of two important aspects of climate change response—nonlinearity and regionality—is still lacking. Here a Green’s function approach is developed to estimate the linear response functions (LRFs) for both the linear and quadratic nonlinear response to ocean thermal forcing in a climate model, whereby the most excitable temperature modes, aka the neutral modes, can be identified for the current Earth climate. The resultant leading mode of the nonlinear response is characterized by a polar-amplified global cooling pattern, unveiling an intrinsic inclination of the modern climate towards cooling. Moreover, optimal forcing patterns are identified to most efficiently excite the corresponding neutral mode patterns. The forcing-response framework developed herein can be utilized to determine the optimal forcing patterns to inform solar geoengineering experiments and to interpret regional climate response and feedback in general. © 2020, This is a U.S. government work and not under copyright protection in the U.S.; foreign copyright protection may apply.
语种	英语
scopus关键词	climate change; climate forcing; cooling; Green function; numerical model; regional climate; surface temperature
来源期刊	npj Climate and Atmospheric Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178050
作者单位	Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA 99354, United States; Physical Oceanography Laboratory/CIMST, Ocean University of China and Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; Department of Computational Mathematics, Science and Engineering, Michigan State University, East Lansing, MI 48824, United States
推荐引用方式 GB/T 7714	Lu J.,Liu F.,Leung L.R.,et al. Neutral modes of surface temperature and the optimal ocean thermal forcing for global cooling[J],2020,3(1).
APA	Lu J.,Liu F.,Leung L.R.,&Lei H..(2020).Neutral modes of surface temperature and the optimal ocean thermal forcing for global cooling.npj Climate and Atmospheric Science,3(1).
MLA	Lu J.,et al."Neutral modes of surface temperature and the optimal ocean thermal forcing for global cooling".npj Climate and Atmospheric Science 3.1(2020).