气候变化领域集成服务门户(CCPortal): Interhemispheric effect of global geography on Earth's climate response to orbital forcing

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DOI	10.5194/cp-15-377-2019
	Interhemispheric effect of global geography on Earth's climate response to orbital forcing
	Roychowdhury R.; Deconto R.
发表日期	2019
ISSN	18149324
起始页码	377
结束页码	388
卷号	15 期号:1
英文摘要	The climate response of the Earth to orbital forcing shows a distinct hemispheric asymmetry due to the unequal distribution of land in the Northern Hemisphere versus Southern Hemisphere. This asymmetry is examined using a global climate model (GCM) for different climate responses such as mean summer temperatures and positive degree days. A land asymmetry effect (LAE) is quantified for each hemisphere and the results show how changes in obliquity and precession translate into variations in the calculated LAE. We find that the global climate response to specific past orbits is likely unique and modified by complex climate-ocean-cryosphere interactions that remain poorly known. Nonetheless, these results provide a baseline for interpreting contemporaneous proxy climate data spanning a broad range of latitudes, which may be useful in paleoclimate data-model comparisons, and individual time-continuous records exhibiting orbital cyclicity. . © 2019 BMJ Publishing Group.All Rights Reserved.
语种	英语
scopus关键词	asymmetry; climate variation; cryosphere; general circulation model; global perspective; Northern Hemisphere; orbital forcing; paleoclimate; Southern Hemisphere
来源期刊	Climate of the Past
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146848
作者单位	Department of Geosciences, 233 Morrill Science Center, University of Massachusetts, 627 North Pleasant Street, Amherst, MA 01003-9297, United States
推荐引用方式 GB/T 7714	Roychowdhury R.,Deconto R.. Interhemispheric effect of global geography on Earth's climate response to orbital forcing[J],2019,15(1).
APA	Roychowdhury R.,&Deconto R..(2019).Interhemispheric effect of global geography on Earth's climate response to orbital forcing.Climate of the Past,15(1).
MLA	Roychowdhury R.,et al."Interhemispheric effect of global geography on Earth's climate response to orbital forcing".Climate of the Past 15.1(2019).