Articles | Volume 12, issue 11
The Cryosphere, 12, 3439–3457, 2018
https://doi.org/10.5194/tc-12-3439-2018
The Cryosphere, 12, 3439–3457, 2018
https://doi.org/10.5194/tc-12-3439-2018
Research article
01 Nov 2018
Research article | 01 Nov 2018

Ice cliff contribution to the tongue-wide ablation of Changri Nup Glacier, Nepal, central Himalaya

Fanny Brun et al.

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Agarwal, V., Bolch, T., Syed, T. H., Pieczonka, T., Strozzi, T., and Nagaich, R.: Area and mass changes of Siachen Glacier (East Karakoram), J. Glaciol., 63, 148–163, https://doi.org/10.1017/jog.2016.127, 2017. a
Agisoft, L.: Agisoft PhotoScan User Manual: Professional Edition, Version 1.3, 2017. a
Anderson, L. S. and Anderson, R. S.: Modeling debris-covered glaciers: response to steady debris deposition, The Cryosphere, 10, 1105–1124, https://doi.org/10.5194/tc-10-1105-2016, 2016. a, b
Azam, M. F., Wagnon, P., Ramanathan, A., Vincent, C., Sharma, P., Arnaud, Y., Linda, A., Pottakkal, J. G., Chevallier, P., Singh, V. B., and Berthier, E.: From balance to imbalance: a shift in the dynamic behaviour of Chhota Shigri glacier, western Himalaya, India, J. Glaciol., 58, 315–324, https://doi.org/10.3189/2012JoG11J123, 2012. a, b
Banerjee, A.: Brief communication: Thinning of debris-covered and debris-free glaciers in a warming climate, The Cryosphere, 11, 133–138, https://doi.org/10.5194/tc-11-133-2017, 2017. a, b
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Short summary
On debris-covered glaciers, steep ice cliffs experience dramatically enhanced melt compared with the surrounding debris-covered ice. Using field measurements, UAV data and submetre satellite imagery, we estimate the cliff contribution to 2 years of ablation on a debris-covered tongue in Nepal, carefully taking into account ice dynamics. While they occupy only 7 to 8 % of the tongue surface, ice cliffs contributed to 23 to 24 % of the total tongue ablation.