气候变化领域集成服务门户(CCPortal): Robust late twenty-first century shift in the regional monsoons in RegCM-CORDEX simulations

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DOI	10.1007/s00382-020-05306-2
	Robust late twenty-first century shift in the regional monsoons in RegCM-CORDEX simulations
	Ashfaq M.; Cavazos T.; Reboita M.S.; Torres-Alavez J.A.; Im E.-S.; Olusegun C.F.; Alves L.; Key K.; Adeniyi M.O.; Tall M.; Sylla M.B.; Mehmood S.; Zafar Q.; Das S.; Diallo I.; Coppola E.; Giorgi F.
发表日期	2020
ISSN	0930-7575
英文摘要	We use an unprecedented ensemble of regional climate model (RCM) projections over seven regional CORDEX domains to provide, for the first time, an RCM-based global view of monsoon changes at various levels of increased greenhouse gas (GHG) forcing. All regional simulations are conducted using RegCM4 at a 25 km horizontal grid spacing using lateral and lower boundary forcing from three General Circulation Models (GCMs), which are part of the fifth phase of the Coupled Model Inter-comparison Project (CMIP5). Each simulation covers the period from 1970 through 2100 under two Representative Concentration Pathways (RCP2.6 and RCP8.5). Regional climate simulations exhibit high fidelity in capturing key characteristics of precipitation and atmospheric dynamics across monsoon regions in the historical period. In the future period, regional monsoons exhibit a spatially robust delay in the monsoon onset, an increase in seasonality, and a reduction in the rainy season length at higher levels of radiative forcing. All regions with substantial delays in the monsoon onset exhibit a decrease in pre-monsoon precipitation, indicating a strong connection between pre-monsoon drying and a shift in the monsoon onset. The weakening of latent heat driven atmospheric warming during the pre-monsoon period delays the overturning of atmospheric subsidence in the monsoon regions, which defers their transitioning into deep convective states. Monsoon changes under the RCP2.6 scenario are mostly within the baseline variability. © 2020, The Author(s).
语种	英语
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/145714
作者单位	Computational Sciences and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, TN, United States; Center for Scientific Research and Higher Education of Ensenada, Ensenada, Baja California, Mexico; Federal University of Itajubá, Itajubá, MG, Brazil; Abdus Salam International Centre for Theoretical Physics, Trieste, Italy; Department of Civil and Environmental Engineering/Division of Environment and Sustainability, The Hong Kong University of Science and Technology, Kowloon, Hong Kong; Centre for Atmospheric Research, National Space Research and Development Agency, Anyigba, Nigeria; National Institute for Space Research, Earth System Science Center, São José dos Campos, São Paulo, Brazil; Department of Physics, University of Ibadan, Ibadan, Nigeria; Laboratoire de Physique de L’Atmosphère Et de L’Océan-Siméon Fongang, Ecole Supérieure Polytechnique, Université Cheikh Anta Diop, Dakar-Fann, PO Box: 5085, Dakar, Senegal; African Institute for Mathematical Sciences, AIMS Rwanda Center, P. O. Box, ...
推荐引用方式 GB/T 7714	Ashfaq M.,Cavazos T.,Reboita M.S.,et al. Robust late twenty-first century shift in the regional monsoons in RegCM-CORDEX simulations[J],2020.
APA	Ashfaq M..,Cavazos T..,Reboita M.S..,Torres-Alavez J.A..,Im E.-S..,...&Giorgi F..(2020).Robust late twenty-first century shift in the regional monsoons in RegCM-CORDEX simulations.Climate Dynamics.
MLA	Ashfaq M.,et al."Robust late twenty-first century shift in the regional monsoons in RegCM-CORDEX simulations".Climate Dynamics (2020).