气候变化领域集成服务门户(CCPortal): Observed Evidence for Steep Rise in the Extreme Flow of Western Himalayan Rivers

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DOI	10.1029/2020GL087815
	Observed Evidence for Steep Rise in the Extreme Flow of Western Himalayan Rivers
	Chug D.; Pathak A.; Indu J.; Jain S.K.; Jain S.K.; Dimri A.P.; Niyogi D.; Ghosh S.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	We present the first observational evidence of changing patterns of extreme streamflows at multiple locations across Western Himalayan (WH) rivers. We find that the frequency of extreme flow events during the period 1980–2003 has doubled with a statistically significant increasing trend in annual maximum streamflow. We postulate that this streamflow change is due to the increased precipitation extremes occurring during both the summer monsoon and the winter seasons. We further found a stepwise increase of “chi-gradient” in Bhagirathi and Sutlej Rivers, indicative of a landscape that facilitates rapid flow of water generating severe floods downstream. Our results highlight the severity of hydroclimatic changes underway in the WH region and the critical need for a hydro-infrastructure for flood forecasting to benefit more than 17 million inhabitants and for ecosystem services to mitigate increasing flood hazards. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Ecosystems; Flood control; Rivers; Stream flow; Ecosystem services; Flood forecasting; Himalayan rivers; Precipitation extremes; Stepwise increase; Streamflow changes; Summer monsoon; Winter seasons; Floods; climate change; extreme event; flood forecasting; hydrometeorology; precipitation intensity; severe weather; streamflow; Sutlej River
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169964
作者单位	Department of Civil Engineering, Indian Institute of Technology Bombay, Powai, Mumbai, India; Department of Atmospheric Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, United States; Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, India; Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai, India; National Institute of Hydrology, Roorkee, India; Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee, India; School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India; Department of Agronomy—Crops, Soils, and Water Sciences, and Earth, and Department of Earth, Atmospheric and Planetary Sciences, Purdue University, West Lafayette, IN, United States; Department of Geological Sciences, Jackson School of Geosciences, The University of Texas, Austin, TX, United States; Department of Civil, Architectural and Environmental Engineering, The University of Te...
推荐引用方式 GB/T 7714	Chug D.,Pathak A.,Indu J.,et al. Observed Evidence for Steep Rise in the Extreme Flow of Western Himalayan Rivers[J],2020,47(15).
APA	Chug D..,Pathak A..,Indu J..,Jain S.K..,Jain S.K..,...&Ghosh S..(2020).Observed Evidence for Steep Rise in the Extreme Flow of Western Himalayan Rivers.Geophysical Research Letters,47(15).
MLA	Chug D.,et al."Observed Evidence for Steep Rise in the Extreme Flow of Western Himalayan Rivers".Geophysical Research Letters 47.15(2020).