Articles | Volume 11, issue 5
Geosci. Model Dev., 11, 1683–1694, 2018
https://doi.org/10.5194/gmd-11-1683-2018
Geosci. Model Dev., 11, 1683–1694, 2018
https://doi.org/10.5194/gmd-11-1683-2018
Development and technical paper
03 May 2018
Development and technical paper | 03 May 2018

Implementation of higher-order vertical finite elements in ISSM v4.13 for improved ice sheet flow modeling over paleoclimate timescales

Joshua K. Cuzzone et al.

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This paper details the implementation of higher-order vertical finite elements in the Ice Sheet System Model (ISSM). When using higher-order vertical finite elements, fewer vertical layers are needed to accurately capture the thermal structure in an ice sheet versus a conventional linear vertical interpolation, therefore greatly improving model runtime speeds, particularly in higher-order stress balance ice sheet models. The implications for paleoclimate ice sheet simulations are discussed.