Glacial lake outburst floods as drivers of fluvial erosion in the Himalaya

Author:

Cook Kristen L.1ORCID,Andermann Christoff1ORCID,Gimbert Florent12,Adhikari Basanta Raj3,Hovius Niels14ORCID

Affiliation:

1. GFZ German Research Centre for Geosciences, Potsdam, Germany.

2. University of Grenoble Alpes, CNRS, IRD, Institut des Géosciences de l’Environnement (IGE), Grenoble, France.

3. Department of Civil Engineering, Pulchowk Campus, Institute of Engineering, Tribhuvan University, Nepal.

4. Institute of Earth and Environmental Science, Potsdam University, Potsdam, Germany.

Abstract

A sudden outburst of erosion Glacial lake outburst floods (GLOFs) are exactly what they sound like. The sudden emptying of a glacial lake in high-topography regions like the Himalaya can quickly destroy everything in its path. Cook et al. intercepted a GLOF in the Bhotekoshi and Sunkoshi river valleys in central Nepal as they were monitoring the region in the aftermath of the 2015 Gorkha earthquake. They found that a massive amount of erosion occurred during the outburst flood, which suggests that GLOFs may be the primary factor in landscape evolution for these regions. Science , this issue p. 53

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference38 articles.

1. K. Hewitt “Natural dams and outburst floods of the Karakoram Himalaya ” in Hydrological Aspects of Alpine and High-Mountain Areas J. W. Glen Ed. (IAHS Publication No. 138 International Association of Hydrological Sciences 1982) pp. 259–269.

2. Glacier lake outburst floods in Nepal;Mool P. K.;J. Nepal Geol. Soc.,1995

3. International Centre for Integrated Mountain Development (ICIMOD) “Glacial lakes and glacial lake outburst floods in Nepal” (ICIMOD Kathmandu 2011).

4. Ice, moraine, and landslide dams in mountainous terrain

5. The formation and failure of natural dams

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