气候变化领域集成服务门户(CCPortal): Projected changes in snow water equivalent over the tibetan plateau under global warming of 1.5° and 2°C

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DOI	10.1175/JCLI-D-19-0719.1
	Projected changes in snow water equivalent over the tibetan plateau under global warming of 1.5° and 2°C
	You Q.; Wu F.; Wang H.; Jiang Z.; Pepin N.; Kang S.
发表日期	2020
ISSN	0894-8755
起始页码	5141
结束页码	5154
卷号	33 期号:12
英文摘要	Snow water equivalent (SWE) is a critical parameter for characterizing snowpack, which has a direct influence on the hydrological cycle, especially over high terrain. In this study, SWE from 18 coupled model simulations from phase 5 of the Coupled Model Intercomparison Project (CMIP5) is validated against the Canadian Sea Ice and Snow Evolution Network (CanSISE) SWE. The model simulations under RCP8.5 and RCP4.5 are employed to investigate projected changes in spring/winter SWE over the Tibetan Plateau (TP) under global warming of 1.5° and 2°C. Most CMIP5 models overestimate the CanSISE SWE. A decrease in mean spring/winter SWE for both RCPs over most regions of the TP is predicted in the future, with most significant reductions over the western TP, consistent with pronounced warming in that region. This is supported by strong positive correlations between SWE and mean temperature in the future in both seasons. Compared with the preindustrial period, spring/winter SWE over the TP under global warming of 1.5° and 2°C will reduce significantly, at faster rates than over China as a whole and the Northern Hemisphere. SWE changes over the TP do not show a simple elevation dependency under global warming of 1.5° and 2°C, with maximum changes in the elevation band of 4000-4500m. Moreover, there are also strong positive correlations between projected SWE and historical mean SWE, indicating that the initial conditions of SWE are an important parameter of future SWE under specific global warming scenarios. © 2020 American Meteorological Society.
英文关键词	Climate models; Global warming; Sea ice; Snow melting systems; Coupled Model Intercomparison Project; Hydrological cycles; Initial conditions; Mean temperature; Model simulation; Northern Hemispheres; Positive correlations; Snow water equivalent; Snow; climate change; climate effect; climate modeling; computer simulation; correlation; global warming; hydrological response; Northern Hemisphere; numerical model; snow water equivalent; China; Qinghai-Xizang Plateau
语种	英语
来源期刊	Journal of Climate
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171505
作者单位	Department of Atmospheric and Oceanic Sciences, Institute of Atmospheric Sciences, Fudan University, Shanghai, China; Innovation Center of Ocean and Atmosphere System, Zhuhai Fudan Innovation Research Institute, Zhuhai, China; Key Laboratory of Meteorological Disaster, Ministry of Education (KLME), Nanjing University of Information Science and Technology, Nanjing, China; School of Tourism, Shanghai Normal University, Shanghai, China; Department of Geography, University of Portsmouth, Portsmouth, United Kingdom; State key laboratory of Cryospheric Science, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, China
推荐引用方式 GB/T 7714	You Q.,Wu F.,Wang H.,et al. Projected changes in snow water equivalent over the tibetan plateau under global warming of 1.5° and 2°C[J]. 中国科学院西北生态环境资源研究院,2020,33(12).
APA	You Q.,Wu F.,Wang H.,Jiang Z.,Pepin N.,&Kang S..(2020).Projected changes in snow water equivalent over the tibetan plateau under global warming of 1.5° and 2°C.Journal of Climate,33(12).
MLA	You Q.,et al."Projected changes in snow water equivalent over the tibetan plateau under global warming of 1.5° and 2°C".Journal of Climate 33.12(2020).