Natural Hazards and Earth System Sciences
Natural Hazards and Earth System Sciences
NHESS
Articles | Volume 26, issue 2
Articles | Volume 26, issue 2
https://doi.org/10.5194/nhess-26-733-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-26-733-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 2
Research article
 | 
06 Feb 2026
Research article |  | 06 Feb 2026

Modelling the effectiveness of GLOF DRM measures – a case study from the Ala-Archa valley, Kyrgyz Republic

Laura Niggli, Holger Frey, Simon Allen, Nazgul Alybaeva, Christian Huggel, Bolot Moldobekov, and Vitalii Zaginaev

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Short summary
Glacial lake outburst floods (GLOF) pose significant risks to communities and infrastructure. Our study explores how effective different measures are in reducing such risks. Using numerical modelling, we evaluate three strategies: lowering lake levels, building a deflection dam, and creating a retention basin. We compared their hazard and exposure reduction and their costs and benefits. This offers insights that can improve GLOF risk management worldwide and support better decision-making.
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