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DOI	10.1038/s41612-018-0030-z
	Does elevation-dependent warming hold true above 5000 m elevation? Lessons from the Tibetan Plateau
	Gao Y.; Chen F.; Lettenmaier D.P.; Xu J.; Xiao L.; Li X.
发表日期	2018
ISSN	23973722
卷号	1 期号:1
英文摘要	Available observations below 5000 m altitude suggest that some mountain regions are undergoing accelerated elevation-dependent warming (EDW) in response to global or regional climate change. We address the question of whether EDW exists above 5000 m altitude, which is the elevation of much of the mountainous portion of the Tibetan Plateau, and headwaters to most of Asia’s major rivers. We analyzed four data sources: in situ observations, gridded observations, ERA-Interim reanalysis, and Weather Research and Forecasting (WRF) regional climate model output over the portion of the Tibetan Plateau above 5000 m elevation. We also analyzed the relative contributions of changes in water vapor, diabatic heating, snow, and surface energy changes to EDW in WRF simulations and ERA-Interim. Gridded observations over the Tibetan Plateau show EDW below 5000 m, in apparent consistency with studies elsewhere. However, the gridded observations above 5000 m are essentially entirely extrapolated from lower elevations. Despite differences in details, neither ERA-Interim nor WRF indicate EDW above 5000 m. The WRF simulation produces more realistic temperature profiles at elevations where observations exist, which are also consistent with the simulated profiles of factors contributing to vertical heating. Furthermore, WRF projects no EDW above 5000 m in future climate projections (with CCSM4 boundary conditions) for RCP 4.5 and 8.5 global emission scenarios. Therefore, we conclude that EDW above 5000 m over the Tibetan Plateau is not occurring, nor is it likely to occur in future decades. © 2018, The Author(s).
语种	英语
scopus关键词	climate change; climate modeling; computer simulation; elevation; future prospect; mountain region; numerical model; regional climate; temperature profile; warming; weather forecasting; China; Qinghai-Xizang Plateau
来源期刊	npj Climate and Atmospheric Science
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/178159
作者单位	Key Laboratory of Land-surface Process and Climate Change in Cold and Arid Regions, Northwest Institute of Eco-environment and Resources, Chinese Academy of Sciences, Lanzhou, China; National Center for Atmospheric Research, Boulder, CO 80301, United States; State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, China Meteorological Administration, Beijing, China; Department of Geography, University of California Los Angeles, Los Angeles, CA, United States
推荐引用方式 GB/T 7714	Gao Y.,Chen F.,Lettenmaier D.P.,et al. Does elevation-dependent warming hold true above 5000 m elevation? Lessons from the Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2018,1(1).
APA	Gao Y.,Chen F.,Lettenmaier D.P.,Xu J.,Xiao L.,&Li X..(2018).Does elevation-dependent warming hold true above 5000 m elevation? Lessons from the Tibetan Plateau.npj Climate and Atmospheric Science,1(1).
MLA	Gao Y.,et al."Does elevation-dependent warming hold true above 5000 m elevation? Lessons from the Tibetan Plateau".npj Climate and Atmospheric Science 1.1(2018).