Sensitivity to forecast surface mass balance outweighs sensitivity to basal sliding descriptions for 21st century mass loss from three major Greenland outlet glaciers

Carr, J. Rachel; Hill, Emily A.; Gudmundsson, G. Hilmar

doi:https://doi.org/10.5194/tc-18-2719-2024

Articles | Volume 18, issue 6

https://doi.org/10.5194/tc-18-2719-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-18-2719-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 18, issue 6

Research article

|

14 Jun 2024

Research article |

| 14 Jun 2024

Sensitivity to forecast surface mass balance outweighs sensitivity to basal sliding descriptions for 21st century mass loss from three major Greenland outlet glaciers

J. Rachel Carr, Emily A. Hill, and G. Hilmar Gudmundsson

Supplement

https://doi.org/10.5194/tc-18-2719-2024-supplement

Data sets

MEaSUREs Greenland Ice Velocity: Selected Glacier Site Velocity Maps from InSAR, Version 2 I. Joughin et al. https://doi.org/10.5067/JQHJUOYCF2TE

Model code and software

GHilmarG/UaSource: Ua2019b (Version v2019b) G. H. Gudmundsson https://doi.org/10.5281/zenodo.3706624

Short summary

The Greenland Ice Sheet is one of the world's largest glaciers and is melting quickly in response to climate change. It contains fast-flowing channels of ice that move ice from Greenland's centre to its coasts and allow Greenland to react quickly to climate warming. As a result, we want to predict how these glaciers will behave in the future, but there are lots of uncertainties. Here we assess the impacts of two main sources of uncertainties in glacier models.