气候变化领域集成服务门户(CCPortal): Robust Longitudinally Variable Responses of the ITCZ to a Myriad of Climate Forcings

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DOI	10.1029/2020GL088833
	Robust Longitudinally Variable Responses of the ITCZ to a Myriad of Climate Forcings
	Atwood A.R.; Donohoe A.; Battisti D.S.; Liu X.; Pausata F.S.R.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:17
英文摘要	We evaluate the longitudinal variation in meridional shifts of the tropical rainbelt in response to natural and anthropogenic forcings using a large suite of coupled climate model simulations. We find that the energetic framework of the zonal mean Hadley cell is generally not useful for characterizing shifts of the rainbelt at regional scales, regardless of the characteristics of the forcing. Forcings with large hemispheric asymmetry such as extratropical volcanic forcing, meltwater forcing, and the Last Glacial Maximum give rise to robust zonal mean shifts of the rainbelt; however, the direction and magnitude of the shift vary strongly as a function of longitude. Even the Pacific rainband does not shift uniformly under any forcing considered. Forcings with weak hemispheric asymmetry such as CO2 and mid-Holocene forcing give rise to zonal mean shifts that are small or absent, but the rainbelt does shift regionally in coherent ways across models that may have important dynamical consequences. ©2020. The Authors.
英文关键词	Earth sciences; Geophysics; Climate forcings; Coupled climate model; Extratropical; Hemi-spheric asymmetries; Last Glacial Maximum; Longitudinal variations; Regional scale; Volcanic forcing; Climate models; climate forcing; climate modeling; extratropical environment; Hadley cell; intertropical convergence zone; Last Glacial Maximum; longitudinal gradient; meltwater; rainband; Pacific Ocean
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/169842
作者单位	Department of Earth, Ocean, and Atmospheric Science, Florida State University, Tallahassee, FL, United States; Polar Science Center, Applied Physics Laboratory, University of Washington, Seattle, WA, United States; Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Centre ESCER (Étude et la Simulation du Climat à l'Échelle Régionale) and GEOTOP (Research Center on the dynamics of the Earth System), Department of Earth and Atmospheric Sciences, University of Quebec in Montreal, Montreal, QC, Canada
推荐引用方式 GB/T 7714	Atwood A.R.,Donohoe A.,Battisti D.S.,et al. Robust Longitudinally Variable Responses of the ITCZ to a Myriad of Climate Forcings[J],2020,47(17).
APA	Atwood A.R.,Donohoe A.,Battisti D.S.,Liu X.,&Pausata F.S.R..(2020).Robust Longitudinally Variable Responses of the ITCZ to a Myriad of Climate Forcings.Geophysical Research Letters,47(17).
MLA	Atwood A.R.,et al."Robust Longitudinally Variable Responses of the ITCZ to a Myriad of Climate Forcings".Geophysical Research Letters 47.17(2020).