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Parameterization for Subgrid-scale Motion of Ice-shelf Calving-fronts : Volume 4, Issue 3 (27/08/2010)

By Albrecht, T.

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Book Id: WPLBN0003989554
Format Type: PDF Article :
File Size: Pages 27
Reproduction Date: 2015

Title: Parameterization for Subgrid-scale Motion of Ice-shelf Calving-fronts : Volume 4, Issue 3 (27/08/2010)  
Author: Albrecht, T.
Volume: Vol. 4, Issue 3
Language: English
Subject: Science, Cryosphere, Discussions
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Publication Date:
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications


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Haseloff, M., Winkelmann, R., Martin, M., Levermann, A., & Albrecht, T. (2010). Parameterization for Subgrid-scale Motion of Ice-shelf Calving-fronts : Volume 4, Issue 3 (27/08/2010). Retrieved from

Description: Earth System Analysis, Potsdam Institute for Climate Impact Research, Potsdam, Germany. A parameterization for the motion of ice-shelf fronts on a Cartesian grid in finite-difference land-ice models is presented. The scheme prevents artificial thinning of the ice shelf at its edge, which occurs due to the finite resolution of the model. The intuitive numerical implementation diminishes numerical dispersion at the ice front and enables the application of physical boundary conditions to improve the calculation of stress and velocity fields throughout the ice-sheet-shelf system. Numerical properties of this subgrid modification are assessed in the Potsdam Parallel Ice Sheet Model (PISM-PIK) for different geometries in one and two horizontal dimensions and are verified against an analytical solution in a flow-line setup.

Parameterization for subgrid-scale motion of ice-shelf calving-fronts

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