Journal cover Journal topic
The Cryosphere An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 4.713 IF 4.713
  • IF 5-year value: 4.927 IF 5-year
    4.927
  • CiteScore value: 8.0 CiteScore
    8.0
  • SNIP value: 1.425 SNIP 1.425
  • IPP value: 4.65 IPP 4.65
  • SJR value: 2.353 SJR 2.353
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 71 Scimago H
    index 71
  • h5-index value: 53 h5-index 53
Preprints
https://doi.org/10.5194/tc-2020-140
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-2020-140
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 02 Jun 2020

Submitted as: research article | 02 Jun 2020

Review status
This preprint is currently under review for the journal TC.

The GRISLI-LSCE contribution to ISMIP6, Part 2: projections of the Antarctic ice sheet evolution by the end of the 21st century

Aurélien Quiquet and Christophe Dumas Aurélien Quiquet and Christophe Dumas
  • Laboratoire des Sciences du Climat et de l’Environnement (LSCE), UMR8212, CEA/CNRS-INSU/UVSQ, Gif-sur-Yvette Cedex, France

Abstract. Of primary societal importance, the ice sheet contribution to global sea level rise over the 21st century remains largely uncertain. In particular, the contribution of the Antarctic ice sheet by 2100 ranges from a few millimetres to more than one metre in the recent literature. The Ice Sheet Model Intercomparison Project for CMIP6 aimed at reducing the uncertainties on the fate of the ice sheets in the future by gathering various ice sheet models in a common framework. While in a companion paper we present the GRISLI-LSCE contribution to ISMIP6-Greenland, we present here the GRISLI-LSCE contribution to ISMIP6-Antarctica. We show that our model is strongly sensitive to the climate forcing used, with a contribution of the Antarctic ice sheet to global sea level rise by 2100 that ranges from −50 mm to +150 mm of sea level equivalent. Future oceanic warming leads to a decrease in thickness of the ice shelves and implies grounding line retreats while increased precipitation partially mitigates the ice sheet contribution to global sea level rise. Most of ice sheet changes over the next century are dampened under low greenhouse gas emission scenarios. Uncertainties related to sub-shelf basal melt induce large differences in simulated grounding line retreats, confirming the importance of this process and its representation in ice sheet models for the projections of the Antarctic ice sheet.

Aurélien Quiquet and Christophe Dumas

Interactive discussion

Status: open (until 28 Jul 2020)
Status: open (until 28 Jul 2020)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement

Aurélien Quiquet and Christophe Dumas

Data sets

The GRISLI-LSCE contribution to ISMIP6-Antarctica A. Quiquet and C. Dumas https://doi.org/10.5281/zenodo.3819782

Aurélien Quiquet and Christophe Dumas

Viewed

Total article views: 130 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
89 37 4 130 1 1
  • HTML: 89
  • PDF: 37
  • XML: 4
  • Total: 130
  • BibTeX: 1
  • EndNote: 1
Views and downloads (calculated since 02 Jun 2020)
Cumulative views and downloads (calculated since 02 Jun 2020)

Viewed (geographical distribution)

Total article views: 108 (including HTML, PDF, and XML) Thereof 108 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Saved

No saved metrics found.

Discussed

No discussed metrics found.
Latest update: 04 Jul 2020
Publications Copernicus
Download
Short summary
We present here the GRISLI-LSCE contribution to the Ice Sheet Model Intercomparison Project for CMIP6 for Antarctica. The project aims at quantifying the ice sheet contribution to global sea level rise for the next century. We show that increase precipitation in the future in some cases mitigate this contribution with positive to negative values in 2100 depending of the climate forcing used. Sub-shelf basal melt uncertainties induce large differences in simulated grounding line retreats.
We present here the GRISLI-LSCE contribution to the Ice Sheet Model Intercomparison Project for...
Citation