Articles | Volume 16, issue 1
https://doi.org/10.5194/tc-16-143-2022
https://doi.org/10.5194/tc-16-143-2022
Research article
 | 
14 Jan 2022
Research article |  | 14 Jan 2022

On the contribution of grain boundary sliding type creep to firn densification – an assessment using an optimization approach

Timm Schultz, Ralf Müller, Dietmar Gross, and Angelika Humbert

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Latest update: 24 Feb 2024
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Short summary
Firn is the interstage product between snow and ice. Simulations describing the process of firn densification are used in the context of estimating mass changes of the ice sheets and past climate reconstructions. The first stage of firn densification takes place in the upper few meters of the firn column. We investigate how well a material law describing the process of grain boundary sliding works for the numerical simulation of firn densification in this stage.