High Mountain Asia hydropower systems threatened by climate-driven landscape instability

Details

Serval ID
serval:BIB_46E3A9BA8C1F
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
High Mountain Asia hydropower systems threatened by climate-driven landscape instability
Journal
Nature Geoscience
Author(s)
Li Dongfeng, Lu Xixi, Walling Desmond E., Zhang Ting, Steiner Jakob F., Wasson Robert J., Harrison Stephan, Nepal Santosh, Nie Yong, Immerzeel Walter W., Shugar Dan H., Koppes Michèle, Lane Stuart, Zeng Zhenzhong, Sun Xiaofei, Yegorov Alexandr, Bolch Tobias
ISSN
1752-0894
1752-0908
Publication state
Published
Issued date
23/06/2022
Peer-reviewed
Oui
Language
english
Abstract
Global warming-induced melting and thawing of the cryosphere are severely altering the volume and timing of water supplied from High Mountain Asia, adversely affecting downstream food and energy systems that are relied on by billions of people. The construction of more reservoirs designed to regulate streamflow and produce hydropower is a critical part of strategies for adapting to these changes. However, these projects are vulnerable to a complex set of interacting processes that are destabilizing landscapes throughout the region. Ranging in severity and the pace of change, these processes include glacial retreat and detachments, permafrost thaw and associated landslides, rock–ice avalanches, debris flows and outburst floods from glacial lakes and landslide-dammed lakes. The result is large amounts of sediment being mobilized that can fill up reservoirs, cause
dam failure and degrade power turbines. Here we recommend forward-looking design and maintenance measures and sustainable sediment management solutions that can help transition towards climate change-resilient dams and reservoirs in High Mountain Asia, in large part based on improved monitoring and prediction of compound and cascading hazards.
Keywords
General Earth and Planetary Sciences
Create date
30/06/2022 18:42
Last modification date
01/07/2022 6:35
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