Print Email Facebook Twitter Description and evaluation of the Community Ice Sheet Model (CISM) v2.1 Title Description and evaluation of the Community Ice Sheet Model (CISM) v2.1 Author Lipscomb, William H. (Los Alamos National Laboratory; University Corporation for Atmospheric Research) Price, Stephen F. (Los Alamos National Laboratory) Hoffman, Matthew J. (Los Alamos National Laboratory) Leguy, Gunter R. (University Corporation for Atmospheric Research) Bennett, Andrew R. (Oak Ridge National Laboratory; University of Washington) Bradley, S.L. (TU Delft Physical and Space Geodesy) Evans, Katherine J. (Oak Ridge National Laboratory) Fyke, Jeremy G. (Los Alamos National Laboratory; Associated Engineering Group, Vernon) Kennedy, Joseph H. (Oak Ridge National Laboratory) Date 2019 Abstract We describe and evaluate version 2.1 of the Community Ice Sheet Model (CISM). CISM is a parallel, 3-D thermomechanical model, written mainly in Fortran, that solves equations for the momentum balance and the thickness and temperature evolution of ice sheets. CISM's velocity solver incorporates a hierarchy of Stokes flow approximations, including shallow-shelf, depth-integrated higher order, and 3-D higher order. CISM also includes a suite of test cases, links to third-party solver libraries, and parameterizations of physical processes such as basal sliding, iceberg calving, and sub-ice-shelf melting. The model has been verified for standard test problems, including the Ice Sheet Model Intercomparison Project for Higher-Order Models (ISMIP-HOM) experiments, and has participated in the initMIP-Greenland initialization experiment. In multimillennial simulations with modern climate forcing on a 4 km grid, CISM reaches a steady state that is broadly consistent with observed flow patterns of the Greenland ice sheet. CISM has been integrated into version 2.0 of the Community Earth System Model, where it is being used for Greenland simulations under past, present, and future climates. The code is open-source with extensive documentation and remains under active development. To reference this document use: http://resolver.tudelft.nl/uuid:d8e3d809-4822-46ed-bc77-2a517eacd9c6 DOI https://doi.org/10.5194/gmd-12-387-2019 ISSN 1991-959X Source Geoscientific Model Development, 12 (1), 387-424 Part of collection Institutional Repository Document type journal article Rights © 2019 William H. Lipscomb, Stephen F. Price, Matthew J. Hoffman, Gunter R. Leguy, Andrew R. Bennett, S.L. Bradley, Katherine J. Evans, Jeremy G. Fyke, Joseph H. Kennedy, More Authors Files PDF gmd_12_387_2019.pdf 3.08 MB Close viewer /islandora/object/uuid:d8e3d809-4822-46ed-bc77-2a517eacd9c6/datastream/OBJ/view