Articles | Volume 19, issue 7
https://doi.org/10.5194/tc-19-2527-2025
https://doi.org/10.5194/tc-19-2527-2025
Research article
 | Highlight paper
 | 
14 Jul 2025
Research article | Highlight paper |  | 14 Jul 2025

Calibrated sea level contribution from the Amundsen Sea sector, West Antarctica, under RCP8.5 and Paris 2C scenarios

Sebastian H. R. Rosier, G. Hilmar Gudmundsson, Adrian Jenkins, and Kaitlin A. Naughten

Viewed

Total article views: 1,228 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
668 298 262 1,228 44 49
  • HTML: 668
  • PDF: 298
  • XML: 262
  • Total: 1,228
  • BibTeX: 44
  • EndNote: 49
Views and downloads (calculated since 04 Jul 2024)
Cumulative views and downloads (calculated since 04 Jul 2024)

Viewed (geographical distribution)

Total article views: 1,228 (including HTML, PDF, and XML) Thereof 1,228 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Latest update: 14 Jul 2025
Download
Co-editor-in-chief
This manuscript investigates the Amundsen Sea region in West Antarctica. The region has been the focus of numerous studies in recent years since the glaciers of the Amundsen Sea are a major source of uncertainty for global sea level rise projections. In this study, the authors use ice-sheet model simulations to investigate the region's response to climate change (specifically, scenarios RCP8.5 and Paris2C). Their results indicate that the region will have contributed approximately 19 mm of sea-level rise by 2100. The authors do not find any indication of rapid retreat or an unstable calving front. Although the ice shelf area significantly decreases in their model simulations, this has little effect on the ice dynamic mass loss. Thus, the manuscript results indicate that by the year 2100, the sea-level contribution from the Amundsen Sea area is almost an order of magnitude less than those estimated by previous studies.
Short summary
Glaciers in the Amundsen Sea region of Antarctica have been retreating and losing mass, but their future contribution to global sea level rise remains highly uncertain. We use an ice sheet model and uncertainty quantification methods to evaluate the probable range of mass loss from this region for two future climate scenarios. We find that the rate of ice loss until 2100 will likely remain similar to present-day observations, with little sensitivity to climate scenario over this short time frame.
Share