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DOI	10.1029/2018GL079511
	Slower Snowmelt in Spring Along With Climate Warming Across the Northern Hemisphere
	Wu, Xuejiao; Che, Tao; Li, Xin; Wang, Ninglian; Yang, Xiaofan
发表日期	2018
ISSN	0094-8276
EISSN	1944-8007
起始页码	12331
结束页码	12339
卷号	45 期号:22
英文摘要	Climate warming is altering historical patterns of snow accumulation and ablation, hence threatening natural water resources. We evaluated the impact of climate warming on snowmelt rates using the GlobSnow v2.0 and the second Modern-Era Retrospective analysis for Research and Applications data sets over the Northern Hemisphere (NH) during the past 38years (1980-2017). Higher ablation rates were found in the locations with deeper snow water equivalent (SWE) because high snow melt rates occurred in late spring and early summer in deep snowpack regions. In addition, due to the reduction of SWE in deep snowpack regions, moderate and high snow ablation rates showed a decreasing trend. Therefore, slower snowmelt rates were found over the entire NH in a warmer climate in general. Based on projections of SWE in Representative Concentration Pathways 2.6, 4.5, and 8.5 climate scenarios, slower snowmelt rates in the NH may continue to happen in the future. Plain Language Summary Snowmelt is a major fresh water resource that supplies human lives and ecosystems in the Northern Hemisphere (NH). Recent climate warming has altered the patterns of snow distribution and snowmelt processes. However, such processes are poorly understood. In the current research, we investigated the snowmelt rates over the NH between 1980 and 2017 using the GlobSnow v2.0 and the second Modern-Era Retrospective analysis for Research and Applications data sets. In contrast to previous hypotheses, we found that slower snowmelt rate has occurred with climate warming, which can be explained by the decrease of snow water equivalent in deep snowpack regions. Based on the projected snow water equivalent data sets in this century, we also predicted that slower snowmelt rates in the NH may continue to happen in the future. Our analyses also indicated that slower snowmelt would decrease spring runoff and influence vegetation phenology and ecological processes.
英文关键词	snow water equivalent; snowmelt; Northern Hemisphere; climate change; remote sensing; snow cover
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS关键词	WATER EQUIVALENT ; RADIOMETER DATA ; PRODUCTS ; DEPTH ; RESPONSES ; REGIMES ; BOREAL ; MODEL ; FLOW
WOS记录号	WOS:000453250000026
来源期刊	GEOPHYSICAL RESEARCH LETTERS
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/241039
作者单位	[Wu, Xuejiao] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Cryospher Sci, Lanzhou, Gansu, Peoples R China; [Che, Tao] Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Remote Sensing Gansu Prov, Heihe Remote Sensing Expt Res Stn, Lanzhou, Gansu, Peoples R China; [Che, Tao; Li, Xin; Wang, Ninglian] Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China; [Li, Xin] Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China; [Wang, Ninglian] Northwestern Univ, Inst Earth Surface Syst & Hazards, Coll Urban & Environm Sci, Xian, Shaanxi, Peoples R China; [Yang, Xiaofan] Beijing Normal Univ, Fac Geog Sci, State Key Lab Earth Surface Proc & Resource Ecol, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wu, Xuejiao,Che, Tao,Li, Xin,et al. Slower Snowmelt in Spring Along With Climate Warming Across the Northern Hemisphere[J]. 中国科学院西北生态环境资源研究院,2018,45(22).
APA	Wu, Xuejiao,Che, Tao,Li, Xin,Wang, Ninglian,&Yang, Xiaofan.(2018).Slower Snowmelt in Spring Along With Climate Warming Across the Northern Hemisphere.GEOPHYSICAL RESEARCH LETTERS,45(22).
MLA	Wu, Xuejiao,et al."Slower Snowmelt in Spring Along With Climate Warming Across the Northern Hemisphere".GEOPHYSICAL RESEARCH LETTERS 45.22(2018).