干旱区生态环境知识资源中心(Arid): Identifying components and controls of streamflow in a cold and arid headwater catchment

Arid

DOI	10.1016/j.jhydrol.2024.131022
	Identifying components and controls of streamflow in a cold and arid headwater catchment
	Yang, Wuchao; Zhang, Xueyan; Wang, Zhengshi; Li, Zhi
通讯作者	Li, Z
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2024
卷号	633
英文摘要	Streamflow is increasingly vulnerable to climate change over cold-arid regions. To understand the underlying mechanisms of streamflow changes, it is essential to distinguish streamflow components and identify their drivers due to various meltwater and rainfall runoff processes. This study combines the conceptual temperatureindex Snowmelt Runoff Model (SRM) and wavelet coherence analysis to unravel the impacts of environmental factors on streamflow and its components over the semiarid-and-cold headwater catchment of the Manas River in Northwest China during 2001-2015. Our results show that SRM reproduces monthly observed streamflow with determination coefficients of > 0.91, Nash-Sutcliffe Efficiency of > 0.82, and absolute relative error of < 5 % during SRM calibration (2001-2007) and validation (2008-2015) periods. The meltwater runoff and rainfall runoff contribute to 42 % and 31 % of the total streamflow, respectively. The wavelet-based spectral analysis, partial wavelet coherency analysis, and multiple-wavelet coherence together demonstrate that total streamflow (rainfall runoff) is predominantly influenced by snow cover area (precipitation) at a scale of 32 (4-16) months. But the meltwater runoff is simultaneously controlled by precipitation, potential evapotranspiration, and normalized difference vegetation index on scales of 4-16 and > 32 months. Our study provides technical support for streamflow partitioning and controlling factors identification, and has implication to sustainable water resources management in cold and arid regions.
英文关键词	Streamflow components Climate change Snowmelt runoff model Wavelet coherence analysis
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001218822100001
WOS关键词	SNOWMELT-RUNOFF MODEL ; MULTIPLE-WAVELET COHERENCE ; LAND-USE CHANGE ; TIANSHAN MOUNTAINS ; RIVER-BASIN ; BASEFLOW SEPARATION ; VARIABILITY ; MELTWATER ; WATER ; AREA
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/2XILL650/404565
推荐引用方式 GB/T 7714	Yang, Wuchao,Zhang, Xueyan,Wang, Zhengshi,et al. Identifying components and controls of streamflow in a cold and arid headwater catchment[J],2024,633.
APA	Yang, Wuchao,Zhang, Xueyan,Wang, Zhengshi,&Li, Zhi.(2024).Identifying components and controls of streamflow in a cold and arid headwater catchment.JOURNAL OF HYDROLOGY,633.
MLA	Yang, Wuchao,et al."Identifying components and controls of streamflow in a cold and arid headwater catchment".JOURNAL OF HYDROLOGY 633(2024).