A Simple Law for Ice-Shelf Calving
2008
Alley, Richard B. | Horgan, Huw J. | Joughin, Ian R. | Cuffey, K. M. (Kurt M) | Dupont, Todd K. | Parizek, Byron R. | Anandakrishnan, Sridhar | Bassis, Jeremy
A major problem for ice-sheet models is that no physically based law for the calving process has been established. Comparison across a diverse set of ice shelves demonstrates that iceberg calving increases with the along-flow spreading rate of a shelf. This relation suggests that frictional buttressing loss, which increases spreading, also leads to shelf retreat, a process known to accelerate ice-sheet flow and contribute to sea-level rise.
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