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Glacial lake outburst floods (Glofs) in the cordillera huayhuash, peru: Historic events and current susceptibility
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SYSNO ASEP 0533213 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Glacial lake outburst floods (Glofs) in the cordillera huayhuash, peru: Historic events and current susceptibility Author(s) Bat’ka, J. (CZ)
Vilímek, V. (CZ)
Štefanová, E. (CZ)
Cook, S. J. (GB)
Emmer, Adam (UEK-B) ORCID, RID, SAINumber of authors 5 Article number 2664 Source Title Water. - : MDPI
Roč. 12, č. 10 (2020)Number of pages 17 s. Language eng - English Country CH - Switzerland Keywords Andes ; Cordillera Huayhuash ; Glacial lakes ; GLOF susceptibility ; GLOFs ; Moraine-dammed lakes ; Peru Subject RIV EH - Ecology, Behaviour OECD category Water resources R&D Projects LO1415 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UEK-B - RVO:86652079 UT WOS 000585476600001 EID SCOPUS 85092357499 DOI 10.3390/w12102664 Annotation The aim of this paper is to create a glacial lake inventory for the Cordillera Huayhuash in Peru and to evaluate the susceptibility of lakes to the generation of glacial lake outburst floods (GLOFs). Using high-resolution satellite images, we undertook qualitative and quantitative analysis of lake type, characteristics and distribution, and placed our findings within the context of existing Peru-wide lake inventories. We also mapped and analyzed past GLOFs, revealing a total of 10 GLOFs and 4 ambiguous events, most of which have not been reported before. We found that past GLOFs usually occurred as a result of moraine dam breach during the proglacial stage of lake evolution. Further, we used our lake inventory to evaluate GLOF susceptibility of all lakes larger than 20,000 m2 . Of 46 evaluated lakes, only two lakes (Lake Tsacra and Lake W014) are currently susceptible to generating a GLOF, which would most likely be through dam overtopping resulting from a flood originating in smaller lakes located upstream. The future perspectives of lake evolution and implications for GLOF hazard management are discussed in light of the post-Little Ice Age glacier ice loss as well as in the context of extensive related research undertaken in the nearby Cordillera Blanca. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2021 Electronic address https://www.mdpi.com/2073-4441/12/10/2664
Number of the records: 1