气候变化领域集成服务门户(CCPortal): Hydropower's hidden transformation of rivers in the Mekong

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DOI	10.1088/1748-9326/ab763d
	Hydropower's hidden transformation of rivers in the Mekong
	Bonnema M.; Hossain F.; Nijssen B.; Holtgrieve G.
发表日期	2020
ISSN	17489318
卷号	15 期号:4
英文摘要	Despite efforts to understand the hydrologic impact of hydropower dams, their influence on downstream river temperatures has gone unnoticed in data limited regions. Using 30 years of Landsat thermal infrared observations (1988-2018), we identified a relationship between dry season water temperature cooling trends and dam development in the 3S Basin, a major tributary of the Mekong River. Within a year of the beginning of operations of major dams in the 3S River Basin, rapid decreases in annual average dry season river temperature were observed ranging between 0.7 °C and 2 °C. Furthermore, in situ water temperature observations confirmed decreasing river temperature for two major dam development events. Evidence was found that the 3S outflow has been cooling the Mekong River downstream of the confluence, by as much as 0.8 °C in recent years. Our findings are critically important for understanding how fish and aquatic ecosystems will behave in the future as more hydropower dams are built in the Mekong River Basin. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	3s rivers; Hydropower; Mekong river; Remote sensing; Stream temperature
语种	英语
scopus关键词	Aquatic ecosystems; Dams; Drought; Hydroelectric power; Hydroelectric power plants; Temperature; Watersheds; Annual average; Cooling trends; Hydrologic impacts; Hydropower dams; Mekong river basins; River temperature; Thermal infrared; Water temperatures; Rivers; cooling; dam construction; dry season; hydroelectric power; land use change; Landsat; satellite data; trend analysis; water temperature; Mekong River
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154069
作者单位	Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, United States; School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, United States
推荐引用方式 GB/T 7714	Bonnema M.,Hossain F.,Nijssen B.,et al. Hydropower's hidden transformation of rivers in the Mekong[J],2020,15(4).
APA	Bonnema M.,Hossain F.,Nijssen B.,&Holtgrieve G..(2020).Hydropower's hidden transformation of rivers in the Mekong.Environmental Research Letters,15(4).
MLA	Bonnema M.,et al."Hydropower's hidden transformation of rivers in the Mekong".Environmental Research Letters 15.4(2020).