干旱区生态环境知识资源中心(Arid): Streamflow response to snow regime shift associated with climate variability in four mountain watersheds in the US Great Basin

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DOI	10.1016/j.jhydrol.2019.03.021
	Streamflow response to snow regime shift associated with climate variability in four mountain watersheds in the US Great Basin
	Tang, Guoping 1,2; Li, Shuping 1; Yang, Muzhen 1; Xu, Zhenwu 1; Liu, Yonglin 1; Gu, Hui 1
通讯作者	Tang, Guoping
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2019
卷号	573 页码:255-266
英文摘要	Mountain watersheds serve as important water sources for socioeconomic activities in semiarid and arid regions. This study examined the streamflow response to snow regime shifts associated with climate variability in the US Great Basin. To this end, the coupled hydro-ecological simulation system (CHESS), a process-based and distributed model, was applied to four mountain watersheds in the US Great Basin. Historical weather records for the period of 1961-1990 were used to spin-up model simulations so that the soil water and vegetation reached the equilibrium state under long-term climate conditions; the period of 1991-2015 was selected as the study period. The model evaluation suggested that CHESS was able to simulate major hydrological processes in the four mountain watersheds. In addition, it was found that annual streamflow was more strongly correlated with snowfall than with rainfall during 1991-2015 and increased by 0.62-0.76 mm as snowfall increased by 1 mm in the study regions. Recent regional warming advanced the timing of the peak flow and shifts in the snow regime also affected the intra-annual pattern of the soil moisture content. Seasonally, spring rainfall and snowmelt were dominant factors in generating spring streamflow and summer baseflow. The mechanisms for flow generation were more complex and more variable in the four watersheds in autumn and winter than in spring and summer. On an annual basis, shifts in snowmelt resulting from climate variability accounted for more than 60% of the variability in the annual streamflow, surpassing the contribution of rainfall in the four watersheds. Overall, our results suggest that shifts in the snow regime due to climate variability have important implications for the intra-annual distribution and availability of water resources in semiarid and arid regions of the US Great Basin.
英文关键词	Climate variability Snow hydrology Snowmelt Streamflow Precipitation
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000474327800020
WOS关键词	WESTERN UNITED-STATES ; RUNOFF ; TRENDS ; DISCHARGE ; 20TH-CENTURY ; TEMPERATURE ; GENERATION ; CALIFORNIA ; DYNAMICS ; EXTREMES
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217148
作者单位	1.Sun Yat Sen Univ, Sch Geog & Planning, Dept Water Resources & Environm, Guangzhou 510275, Guangdong, Peoples R China; 2.Sun Yat Sen Univ, Sch Atmospher Sci, Guangdong Prov Key Lab Climate Change & Nat Dis S, Guangzhou 510275, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Tang, Guoping,Li, Shuping,Yang, Muzhen,et al. Streamflow response to snow regime shift associated with climate variability in four mountain watersheds in the US Great Basin[J],2019,573:255-266.
APA	Tang, Guoping,Li, Shuping,Yang, Muzhen,Xu, Zhenwu,Liu, Yonglin,&Gu, Hui.(2019).Streamflow response to snow regime shift associated with climate variability in four mountain watersheds in the US Great Basin.JOURNAL OF HYDROLOGY,573,255-266.
MLA	Tang, Guoping,et al."Streamflow response to snow regime shift associated with climate variability in four mountain watersheds in the US Great Basin".JOURNAL OF HYDROLOGY 573(2019):255-266.