Articles | Volume 12, issue 10
The Cryosphere, 12, 3229–3242, 2018
https://doi.org/10.5194/tc-12-3229-2018
The Cryosphere, 12, 3229–3242, 2018
https://doi.org/10.5194/tc-12-3229-2018

Research article 09 Oct 2018

Research article | 09 Oct 2018

Grounding-line flux formula applied as a flux condition in numerical simulations fails for buttressed Antarctic ice streams

Ronja Reese et al.

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Latest update: 02 Dec 2021
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Short summary
Accurately representing grounding-line flux is essential for modelling the evolution of the Antarctic Ice Sheet. Currently, in some large-scale ice-flow modelling studies a condition on ice flux across grounding lines is imposed using an analytically motivated parameterisation. Here we test this expression for Antarctic grounding lines and find that it provides inaccurate and partly unphysical estimates of ice flux for the highly buttressed ice streams.