Articles | Volume 7, issue 2
Earth Surf. Dynam., 7, 411–427, 2019
Earth Surf. Dynam., 7, 411–427, 2019
Research article
14 May 2019
Research article | 14 May 2019

Sediment supply from lateral moraines to a debris-covered glacier in the Himalaya

Teun van Woerkom et al.

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Cited articles

Anderson, R. S., Anderson, L. S., Armstrong, W. H., Rossi, M. W., and Crump, S. E.: Glaciation of alpine valleys: The glacier – debris-covered glacier – rock glacier continuum, Geomorphology, 311, 127–142,, 2018. a
Ballantyne, C. K.: Paraglacial Geomorphology, in: Encyclopedia of Quaternary Science: Second Edition, Pergamon, vol. 21, 553–565,, 2013. a, b, c
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Benn, D. I. and Ballantyne, C. K.: Reconstructing the transport history of glacigenic sediments: a new approach based on the co-variance of clast form indices, Sediment. Geol., 91, 215–227,, 1994. a, b, c, d
Benn, D. I. and Owen, L. A.: Himalayan glacial sedimentary environments: A framework for reconstructing and dating the former extent of glaciers in high mountains, Quatern. Int., 97-98, 3–25,, 2002. a, b, c
Short summary
Using data obtained from multiple UAV flights over a debris-covered glacier in the Himalaya between 2013 and 2018, we show that the adjacent moraines erode at rates of up to 16 cm per year, contributing to this debris cover. With retreating ice and resulting instability of moraines, this causes the glacier to cover a narrow zone along the lateral moraines in ever-thicker layers of rocks, resulting in a possible future decrease of local melt.