气候变化领域集成服务门户(CCPortal): Snow Hydrology in the Upper Yellow River Basin Under Climate Change: A Land Surface Modeling Perspective

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DOI	10.1029/2018JD028984
	Snow Hydrology in the Upper Yellow River Basin Under Climate Change: A Land Surface Modeling Perspective
	Liu, Wenbin; Wang, Lei; Sun, Fubao; Li, Zehua; Wang, Hong; Liu, Jiahong; Yang, Tao; Zhou, Jing; Qi, Jia
通讯作者	Liu, WB ; Sun, FB (通讯作者)
发表日期	2018
ISSN	2169-897X
EISSN	2169-8996
起始页码	12676
结束页码	12691
卷号	123 期号:22
英文摘要	Snow has been widely recognized as a crucial component of water resources and is expected to be vulnerable to climate change in cold and mountainous regions. Here we projected climate change impacts on snow hydrology in the upper Yellow River (UYR) basin through a distributed biosphere hydrological model with improved snow physics, forced with Inter-Sectoral Impact Model Intercomparison Project climate model outputs under two emission scenarios (representative concentration pathways, RCP4.5 and RCP8.5) during the period of 1996-2025. The results indicated that the climate in the UYR basin is turning warmer and wetter. In this context, more precipitation would occur as rain (snow-to-precipitation ratio would decrease accordingly). The total runoff generation would increase slightly with increased precipitation. The simulated snow depth and snow water equivalent would decrease by 33% and 19% per 1 degrees C warming under the RCP4.5. These declined rates would further enlarge under the RCP8.5. Accordingly, the multimodel ensemble mean snowmelt-to-runoff ratio decreases by 9% and 7% per 1 degrees C warming under the two emission scenarios. The projected responses of snow hydrology (e.g., snow depth, snow water equivalent, and snowmelt) to the changing climate in the UYR basin are consistent among different climate models and RCP scenarios, which would provide valuable insights for water resources management, environmental protection, and climate change adaption in high mountainous basins and their downstream regions.
关键词	WATER AVAILABILITY CHANGE IMPACTS LOESS PLATEAU VARIABILITY TRENDS RUNOFF EVAPOTRANSPIRATION UNCERTAINTIES SIMULATION STREAMFLOW
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000452994100012
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259302
推荐引用方式 GB/T 7714	Liu, Wenbin,Wang, Lei,Sun, Fubao,et al. Snow Hydrology in the Upper Yellow River Basin Under Climate Change: A Land Surface Modeling Perspective[J]. 中国科学院青藏高原研究所,2018,123(22).
APA	Liu, Wenbin.,Wang, Lei.,Sun, Fubao.,Li, Zehua.,Wang, Hong.,...&Qi, Jia.(2018).Snow Hydrology in the Upper Yellow River Basin Under Climate Change: A Land Surface Modeling Perspective.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(22).
MLA	Liu, Wenbin,et al."Snow Hydrology in the Upper Yellow River Basin Under Climate Change: A Land Surface Modeling Perspective".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.22(2018).