Articles | Volume 24, issue 1
Hydrol. Earth Syst. Sci., 24, 93–114, 2020
https://doi.org/10.5194/hess-24-93-2020
Hydrol. Earth Syst. Sci., 24, 93–114, 2020
https://doi.org/10.5194/hess-24-93-2020
Research article
09 Jan 2020
Research article | 09 Jan 2020

Reconstruction of the 1941 GLOF process chain at Lake Palcacocha (Cordillera Blanca, Peru)

Martin Mergili et al.

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Short summary
In 1941, the glacial lagoon Lake Palcacocha in the Cordillera Blanca (Peru) drained suddenly. The resulting outburst flood/debris flow consumed another lake and had a disastrous impact on the town of Huaraz 23 km downstream. We reconstuct this event through a numerical model to learn about the possibility of prediction of similar processes in the future. Remaining challenges consist of the complex process interactions and the lack of experience due to the rare occurrence of such process chains.