气候变化领域集成服务门户(CCPortal): Contemporary Trends in High and Low River Flows in Upper Indus Basin, Pakistan

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DOI	10.3390/w14030337
	Contemporary Trends in High and Low River Flows in Upper Indus Basin, Pakistan
	Yaseen, Muhammad; Latif, Yasir; Waseem, Muhammad; Leta, Megersa Kebede; Abbas, Sohail; Akram Bhatti, Haris
通讯作者	Latif, Y (通讯作者)
发表日期	2022
EISSN	2073-4441
卷号	14 期号:3
英文摘要	The Upper Indus Basin (UIB) features the high mountain ranges of the Hindukush, Karakoram and Himalaya (HKH). The snow and glacier meltwater contribution feeds 10 major river basins downstream including Astore, Gilgit, Hunza, Jhelum, Kabul, Shyok and Shigar. Climate change is likely to fluctuate the runoff generated from such river basins concerning high and low streamflows. Widening the lens of focus, the present study examines the magnitude and timing of high flows variability as well as trends variability in low streamflows using Sen's slope and the Mann-Kendall test in UIB from 1981 to 2016. The results revealed that the trend in the magnitude of the high flows decreased at most of the sub-basins including the Jhelum, Indus and Kabul River basins. Significantly increased high flows were observed in the glacier regime of UIB at Shigar and Shyok while decreased flows were predominant in Hunza River at Daniyor Bridge. A similar proclivity of predominantly reduced flows was observed in nival and rainfall regimes in terms of significant negative trends in the Jhelum, Kunhar, Neelum and Poonch River basins. The timing of the high flows has not changed radically as magnitude at all gauging stations. For the low flows, decreasing significant trends were detected in the annual flows as well as in other extremes of low flows (1-day, 7-day, 15-day). The more profound and decreasing pattern of low flows was observed in summer at most of the gauging stations; however, such stations exhibited increased low flows in autumn, winter and spring. The decrease in low flows indicates the extension of dry periods particularly in summer. The high-water demand in summer will be compromised due to consistently reducing summer flows; the lower the water availability, the lower will be the crop yield and electricity generation.
关键词	WATER-RESOURCES NORTHWESTERN HIMALAYA HYDROLOGICAL REGIME CLIMATE-CHANGE TIME-SERIES PRECIPITATION TEMPERATURE VARIABILITY MANAGEMENT MAGNITUDE
英文关键词	Upper Indus Basin; streamflows; flow extremes; high and low flows; Mann-Kendall; Jhelum River basin; Kabul River basin; significant trends; climate change
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
WOS类目	Environmental Sciences ; Water Resources
WOS记录号	WOS:000754661100001
来源期刊	WATER
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/260758
推荐引用方式 GB/T 7714	Yaseen, Muhammad,Latif, Yasir,Waseem, Muhammad,et al. Contemporary Trends in High and Low River Flows in Upper Indus Basin, Pakistan[J]. 中国科学院青藏高原研究所,2022,14(3).
APA	Yaseen, Muhammad,Latif, Yasir,Waseem, Muhammad,Leta, Megersa Kebede,Abbas, Sohail,&Akram Bhatti, Haris.(2022).Contemporary Trends in High and Low River Flows in Upper Indus Basin, Pakistan.WATER,14(3).
MLA	Yaseen, Muhammad,et al."Contemporary Trends in High and Low River Flows in Upper Indus Basin, Pakistan".WATER 14.3(2022).