Impact of the melt–albedo feedback on the future evolution of the Greenland Ice Sheet with PISM-dEBM-simple

Zeitz, Maria; Reese, Ronja; Beckmann, Johanna; Krebs-Kanzow, Uta; Winkelmann, Ricarda

doi:https://doi.org/10.5194/tc-15-5739-2021

Articles | Volume 15, issue 12

https://doi.org/10.5194/tc-15-5739-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-15-5739-2021

© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 12

Research article

| Highlight paper

|

20 Dec 2021

Research article | Highlight paper |

| 20 Dec 2021

Impact of the melt–albedo feedback on the future evolution of the Greenland Ice Sheet with PISM-dEBM-simple

Maria Zeitz, Ronja Reese, Johanna Beckmann, Uta Krebs-Kanzow, and Ricarda Winkelmann

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Final revised paper (published on 20 Dec 2021)
Supplement to the final revised paper
Preprint (discussion started on 24 Mar 2021)

Interactive discussion

Status: closed

AC1: 'Comment on tc-2021-91', Maria Zeitz, 01 Apr 2021

In this version, we didn't use the most appropriate reference for the regional climate model MARv3.11. On page 7, line 6 we wrongfully cited Amory et al. (2020), which describes a module not used in the version that produced the outputs on which we based our analysis. Instead it should have been Kittel et al. (2021) and Fettweis et al. (2020).

Kittel, C., Amory, C., Agosta, C., Jourdain, N. C., Hofer, S., Delhasse, A., Doutreloup, S., Huot, P.-V., Lang, C., Fichefet, T., and Fettweis, X.: Diverging future surface mass balance between the Antarctic ice shelves and grounded ice sheet, The Cryosphere, 15, 1215–1236, https://doi.org/10.5194/tc-15-1215-2021, 2021.

Fettweis, X., Hofer, S., Séférian, R., Amory, C., Delhasse, A., Doutreloup, S., Kittel, C., Lang, C., Van Bever, J., Veillon, F., and Irvine, P.: Brief Communication: Reduction of the future Greenland ice sheet surface melt with the help of solar geoengineering, The Cryosphere Discuss. [preprint], https://doi.org/10.5194/tc-2020-347, in review, 2020

Citation: https://doi.org/10.5194/tc-2021-91-AC1
RC1:
'Comment on tc-2021-91', Signe Hillerup Larsen, 13 May 2021

The comment was uploaded in the form of a supplement: https://tc.copernicus.org/preprints/tc-2021-91/tc-2021-91-RC1-supplement.pdf

Citation: https://doi.org/10.5194/tc-2021-91-RC1
- AC2: 'Reply on RC1', Maria Zeitz, 10 Aug 2021
  
  Please find our response to all reviewer comments in the attached PDF. The changes
  
  in the manuscript (generated by latexdiff) can be found at the end of the file.
  
  Citation: https://doi.org/10.5194/tc-2021-91-AC2
RC2:
'Comment on tc-2021-91', Mario Krapp, 21 Jun 2021

The comment was uploaded in the form of a supplement: https://tc.copernicus.org/preprints/tc-2021-91/tc-2021-91-RC2-supplement.pdf

Citation: https://doi.org/10.5194/tc-2021-91-RC2
- AC3: 'Reply on RC2', Maria Zeitz, 10 Aug 2021
  
  Please find our response to all reviewer comments in the attached PDF. The changes
  
  in the manuscript (generated by latexdiff) can be found at the end of the file.
  
  Citation: https://doi.org/10.5194/tc-2021-91-AC3

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) (24 Aug 2021) by Kerim Nisancioglu

AR by Maria Zeitz on behalf of the Authors (24 Aug 2021) Author's response Author's tracked changes Manuscript

ED: Referee Nomination & Report Request started (26 Aug 2021) by Kerim Nisancioglu

RR by Mario Krapp (20 Sep 2021)

ED: Publish subject to minor revisions (review by editor) (31 Oct 2021) by Kerim Nisancioglu

AR by Maria Zeitz on behalf of the Authors (03 Nov 2021) Author's response Author's tracked changes Manuscript

ED: Publish subject to technical corrections (08 Nov 2021) by Kerim Nisancioglu

AR by Maria Zeitz on behalf of the Authors (09 Nov 2021) Manuscript

Post-review adjustments

AA: Author's adjustment | EA: Editor approval

AA by Maria Zeitz on behalf of the Authors (08 Dec 2021) Author's adjustment Manuscript

EA: Adjustments approved (13 Dec 2021) by Kerim Nisancioglu

Short summary

With the increasing melt of the Greenland Ice Sheet, which contributes to sea level rise, the surface of the ice darkens. The dark surfaces absorb more radiation and thus experience increased melt, resulting in the melt–albedo feedback. Using a simple surface melt model, we estimate that this positive feedback contributes to an additional 60 % ice loss in a high-warming scenario and additional 90 % ice loss for moderate warming. Albedo changes are important for Greenland’s future ice loss.