Preprints
https://doi.org/10.5194/egusphere-2024-4033
https://doi.org/10.5194/egusphere-2024-4033
29 Jan 2025
 | 29 Jan 2025

Will landscape responses reduce glacier sensitivity to climate change in High Mountain Asia? 

Stephan Harrison, Adina Racoviteanu, Sarah Shannon, Darren Jones, Karen Anderson, Neil Glasser, Jasper Knight, Anna Ranger, Arindan Mandal, Brahma Dutt Vishwakarma, Jeffrey Kargel, Dan Shugar, Umesh Haritishaya, Dongfeng Li, Aristeidis Koutroulis, Klaus Wyser, and Sam Inglis

Abstract. In High Mountain Asia (HMA) ongoing climate change threatens mountain water resources as glaciers melt, and the resulting changes in runoff and water availability are likely to have considerable negative impacts on ecological and human systems. Numerous assessments of the ways in which these glaciers will respond to climate warming have been published over the past decade. Many of these assessments have used climate model projections to argue that HMA glaciers will melt significantly this century. However, we show that this is only one way in which these glaciers might respond. An alternative pathway is one in which increasing valley-side instability releases large amounts of rock debris onto glacier surfaces. The development of extensive glacier surface debris cover is common in HMA and, if thick enough, this surface debris inhibits glacier melting to the extent that glacier ice becomes preserved under the surface debris cover. In so doing, a transition to rock glaciers may prolong the lifetime of HMA glaciers in the landscape. We call this alternative pathway the Paraglacial Transition Model. In this Perspective Article we discuss the scientific basis of this alternative view in order to better understand how HMA glaciers may respond to climate change.

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this paper. While Copernicus Publications makes every effort to include appropriate place names, the final responsibility lies with the authors. Views expressed in the text are those of the authors and do not necessarily reflect the views of the publisher.
Share

Journal article(s) based on this preprint

30 Sep 2025
Will landscape responses reduce glacier sensitivity to climate change in High Mountain Asia?
Stephan Harrison, Adina Racoviteanu, Sarah Shannon, Darren Jones, Karen Anderson, Neil Glasser, Jasper Knight, Anna Ranger, Arindan Mandal, Bramha Dutt Vishwakarma, Jeffrey S. Kargel, Dan Shugar, Umesh Haritashya, Dongfeng Li, Aristeidis Koutroulis, Klaus Wyser, and Sam Inglis
The Cryosphere, 19, 4113–4124, https://doi.org/10.5194/tc-19-4113-2025,https://doi.org/10.5194/tc-19-4113-2025, 2025
Short summary
Stephan Harrison, Adina Racoviteanu, Sarah Shannon, Darren Jones, Karen Anderson, Neil Glasser, Jasper Knight, Anna Ranger, Arindan Mandal, Brahma Dutt Vishwakarma, Jeffrey Kargel, Dan Shugar, Umesh Haritishaya, Dongfeng Li, Aristeidis Koutroulis, Klaus Wyser, and Sam Inglis

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2024-4033', Morgan Jones, 16 Mar 2025
  • RC2: 'Comment on egusphere-2024-4033', Anonymous Referee #2, 19 Mar 2025

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2024-4033', Morgan Jones, 16 Mar 2025
  • RC2: 'Comment on egusphere-2024-4033', Anonymous Referee #2, 19 Mar 2025

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Reconsider after major revisions (further review by editor and referees) (27 Apr 2025) by Ian Delaney
AR by stephan harrison on behalf of the Authors (21 May 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Publish subject to minor revisions (review by editor) (06 Jun 2025) by Ian Delaney
AR by stephan harrison on behalf of the Authors (18 Jun 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (26 Jun 2025) by Ian Delaney
AR by stephan harrison on behalf of the Authors (07 Jul 2025)  Manuscript 

Journal article(s) based on this preprint

30 Sep 2025
Will landscape responses reduce glacier sensitivity to climate change in High Mountain Asia?
Stephan Harrison, Adina Racoviteanu, Sarah Shannon, Darren Jones, Karen Anderson, Neil Glasser, Jasper Knight, Anna Ranger, Arindan Mandal, Bramha Dutt Vishwakarma, Jeffrey S. Kargel, Dan Shugar, Umesh Haritashya, Dongfeng Li, Aristeidis Koutroulis, Klaus Wyser, and Sam Inglis
The Cryosphere, 19, 4113–4124, https://doi.org/10.5194/tc-19-4113-2025,https://doi.org/10.5194/tc-19-4113-2025, 2025
Short summary
Stephan Harrison, Adina Racoviteanu, Sarah Shannon, Darren Jones, Karen Anderson, Neil Glasser, Jasper Knight, Anna Ranger, Arindan Mandal, Brahma Dutt Vishwakarma, Jeffrey Kargel, Dan Shugar, Umesh Haritishaya, Dongfeng Li, Aristeidis Koutroulis, Klaus Wyser, and Sam Inglis
Stephan Harrison, Adina Racoviteanu, Sarah Shannon, Darren Jones, Karen Anderson, Neil Glasser, Jasper Knight, Anna Ranger, Arindan Mandal, Brahma Dutt Vishwakarma, Jeffrey Kargel, Dan Shugar, Umesh Haritishaya, Dongfeng Li, Aristeidis Koutroulis, Klaus Wyser, and Sam Inglis

Viewed

Total article views: 661 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
526 113 22 661 50 30 39
  • HTML: 526
  • PDF: 113
  • XML: 22
  • Total: 661
  • Supplement: 50
  • BibTeX: 30
  • EndNote: 39
Views and downloads (calculated since 29 Jan 2025)
Cumulative views and downloads (calculated since 29 Jan 2025)

Viewed (geographical distribution)

Total article views: 638 (including HTML, PDF, and XML) Thereof 638 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 30 Sep 2025
Download

The requested preprint has a corresponding peer-reviewed final revised paper. You are encouraged to refer to the final revised version.

Short summary
Climate change is leading to a global recession of mountain glaciers, and numerical modelling suggests that this will result in the eventual disappearance of many glaciers, impacting water supplies. However, an alternative scenario suggests that increased rock fall and debris flows to valley bottoms will cover glaciers with thick rock debris, slowing melting and transforming glaciers into rock-ice mixtures called rock glaciers. This paper explores these scenarios.
Share