气候变化领域集成服务门户(CCPortal): Analysis of seasonal snowmelt contribution using a distributed energy balance model for a river basin in the Altai Mountains of northwestern China

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DOI	10.1002/hyp.14046
	Analysis of seasonal snowmelt contribution using a distributed energy balance model for a river basin in the Altai Mountains of northwestern China
	Wu, Xuejiao; Zhang, Wei; Li, Hongyi; Long, Yinping; Pan, Xiaoduo; Shen, Yongping
通讯作者	Wu, XJ ; Shen, YP (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Koktokay Snow Stn, Lanzhou 730000, Gansu, Peoples R China.
发表日期	2021
ISSN	0885-6087
EISSN	1099-1085
卷号	35 期号:3
英文摘要	Snowmelt water is a vital freshwater resource in the Altai Mountains of northwestern China. Yet its seasonal hydrological cycle characteristics could change under a warming climate and more rapid spring snowmelt. Here, we simulated snowmelt runoff dynamics in the Kayiertesi River catchment, from 2000 to 2016, by using an improved hydrological distribution model that relied on high-resolution meteorological data acquired from the National Centers for Environmental Prediction (Fnl-NCEP) that were downscaled using the Weather Research Forecasting model. Its predictions were compared to observed runoff data, which confirmed the simulations' reliability. Our results show the model performed well, in general, given its daily validation Nash-Sutcliffe efficiency (NSE) of 0.62 (from 2013 to 2015) and a monthly NSE score of 0.68 (from 2000 to 2010) for the studied river basin of the Altai Mountains. In this river basin catchment, snowfall accounted for 64.1% of its precipitation and snow evaporation for 49.8% of its total evaporation, while snowmelt runoff constituted 29.3% of the annual runoff volume. Snowmelt's contribution to runoff in the Altai Mountains can extend into non-snow days because of the snowmelt water retained in soils. From 2000 to 2016, the snow-to-rain ratio decreased rapidly, however, the snowmelt contribution remained relatively stable in the study region. Our findings provide a sound basis for making snowmelt runoff predictions, which could be used prevent snowmelt-induced flooding, as well as a generalizable approach applicable to other remote, high-elevation locations where high-density, long-term observational data are currently lacking. How snowmelt contributes to water dynamics and resources in cold regions is garnering greater attention. Our proposed model is thus timely perhaps, enabling more comprehensive assessments of snowmelt contributions to hydrological processes in those alpine regions characterized by seasonal snow cover.
英文关键词	Altai Mountains; climate warming; hydrological processes; snow evaporation; snow sublimation; snowmelt runoff
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:000636346700036
来源期刊	HYDROLOGICAL PROCESSES
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/254044
作者单位	[Wu, Xuejiao; Zhang, Wei; Li, Hongyi; Shen, Yongping] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Koktokay Snow Stn, Lanzhou 730000, Gansu, Peoples R China; [Long, Yinping] Chengdu Univ Informat Technol, Coll Environm & Resource Sci, Chengdu, Peoples R China; [Pan, Xiaoduo] Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wu, Xuejiao,Zhang, Wei,Li, Hongyi,et al. Analysis of seasonal snowmelt contribution using a distributed energy balance model for a river basin in the Altai Mountains of northwestern China[J]. 中国科学院西北生态环境资源研究院,2021,35(3).
APA	Wu, Xuejiao,Zhang, Wei,Li, Hongyi,Long, Yinping,Pan, Xiaoduo,&Shen, Yongping.(2021).Analysis of seasonal snowmelt contribution using a distributed energy balance model for a river basin in the Altai Mountains of northwestern China.HYDROLOGICAL PROCESSES,35(3).
MLA	Wu, Xuejiao,et al."Analysis of seasonal snowmelt contribution using a distributed energy balance model for a river basin in the Altai Mountains of northwestern China".HYDROLOGICAL PROCESSES 35.3(2021).