The Cryosphere
The Cryosphere
TC
Articles | Volume 11, issue 4
Articles | Volume 11, issue 4
https://doi.org/10.5194/tc-11-1685-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/tc-11-1685-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 11, issue 4
Comment/reply
 | 
21 Jul 2017
Comment/reply |  | 21 Jul 2017

Reply to “Basal buoyancy and fast-moving glaciers: in defense of analytic force balance” by C. J. van der Veen (2016)

Terence J. Hughes

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Short summary
Two approaches to ice-sheet modeling are available. Analytical modeling is the traditional approach. It solves the force (momentum), mass, and energy balances to obtain three-dimensional solutions over time. Geometrical modeling employs simple geometry to solve the force and mass balance in one dimension along ice flow. It is useful primarily to provide the first-order physical basis of ice-sheet modeling for students with little background in mathematics. The two approaches are compared.
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