Modeling the impacts of climate trends and lake formation on the retreat of a tropical Andean glacier (1962–2020)

Shutkin, Tal Y.; Mark, Bryan G.; Stansell, Nathan D.; Cruz Encarnación, Rolando; Brecher, Henry H.; Liu, Zhengyu; Yadav, Bidhyananda; Schoessow, Forrest S.

doi:https://doi.org/10.5194/tc-19-4835-2025

Articles | Volume 19, issue 10

https://doi.org/10.5194/tc-19-4835-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-19-4835-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 10

Research article

|

21 Oct 2025

Research article |

| 21 Oct 2025

Modeling the impacts of climate trends and lake formation on the retreat of a tropical Andean glacier (1962–2020)

Tal Y. Shutkin, Bryan G. Mark, Nathan D. Stansell, Rolando Cruz Encarnación, Henry H. Brecher, Zhengyu Liu, Bidhyananda Yadav, and Forrest S. Schoessow

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Final revised paper (published on 21 Oct 2025)
Supplement to the final revised paper
Preprint (discussion started on 30 Jan 2025)
Supplement to the preprint

Interactive discussion

Status: closed

RC1:
'Comment on egusphere-2024-3194', Ethan Lee & Owen King (co-review team), 13 Mar 2025

Please find attached to this comment our comments on the manuscript; 'Modeling the impacts of climate trends and lake formation on the retreat of a tropical Andean glacier (1962-2020)’'

Citation: https://doi.org/10.5194/egusphere-2024-3194-RC1
- AC1: 'Reply on RC1', Tal Shutkin, 12 May 2025
  
  Dear reviewers,
  Thank you very much for your constructive feedback. We have included detailed responses to all comments in the attached document.
  
  Citation: https://doi.org/10.5194/egusphere-2024-3194-AC1
RC2:
'Comment on egusphere-2024-3194', Catriona Fyffe, 31 Mar 2025

Please see the attached review.
With kind regards,
Catriona Fyffe

Citation: https://doi.org/10.5194/egusphere-2024-3194-RC2
- AC2: 'Reply on RC2', Tal Shutkin, 25 May 2025
  
  We thank the reviewer for these insightful and constructive comments. Please find our detailed responses in the attached document.
  
  Citation: https://doi.org/10.5194/egusphere-2024-3194-AC2

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload

ED: Publish subject to revisions (further review by editor and referees) (18 Jun 2025) by Nicholas Barrand

AR by Tal Shutkin on behalf of the Authors (07 Aug 2025) Author's response Author's tracked changes Manuscript

ED: Publish as is (20 Aug 2025) by Nicholas Barrand

AR by Tal Shutkin on behalf of the Authors (20 Aug 2025)

Short summary

Queshque Glacier of Peru's tropical Andes has retreated rapidly since the mid-20th century. Using a glacier model, we show that this has primarily been driven by steady warming despite the counteracting effect of recent snowfall amounts. Independently from climatic trends, we find that the formation of a new lake at the glacier's base has further accelerated ice loss. This research demonstrates the utility of empirical glacier models for interpreting past and future changes in the tropics.