.png){kind=icon}
.png){kind=icon}
Return
ISMIP-HOM benchmark experiments using Underworld
.png){kind=icon}
OA
AI
DOI：10.5194/gmd-15-8749-2022.png)
.png){kind=icon}
Original request for help.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Numerical models have become an indispensable tool forunderstanding and predicting the flow of ice sheets and glaciers. Here wepresent the full-Stokes software package Underworld to the glaciologicalcommunity. The code is already well established in simulating complexgeodynamic systems. Advantages for glaciology are that it provides afull-Stokes solution for elastic-viscous-plastic materials and includesmechanical anisotropy. Underworld uses a material point method to track thefull history information of Lagrangian material points, of stratigraphiclayers and of free surfaces. We show that Underworld successfully reproducesthe results of other full-Stokes models for the benchmark experiments of the Ice Sheet Model Intercomparison Project for Higher-Order Models(ISMIP-HOM). Furthermore, we test finite-element meshes with differentgeometries and highlight the need to be able to adapt the finite-elementgrid to discontinuous interfaces between materials with strongly differentproperties, such as the ice-bedrock boundary.
Keywords:
POLAR ICE
DEFORMATION
ANISOTROPY
EVOLUTION
DYNAMICS
MODELS
SHEETS
CREEP
CRUST
Journal
IF:
4.9
Papers:
4.0K
Citations:
2.4W