Document Type

Article

Publication Date

2016

DOI

10.1017/aog.2016.31

Publication Title

Annals of Glaciology

Volume

57

Issue

73

Pages

131-141

Abstract

We present simulation results from a version of the Regional Ocean Modeling System modified for ice shelf/ocean interaction, including the parameterisation of basal melting by molecular diffusion alone. Simulations investigate the differences in melting for an idealised ice shelf experiencing a range of cold to hot ocean cavity conditions. Both the pattern of melt and the location of maximum melt shift due to changes in the buoyancy-driven circulation, in a different way to previous studies. Tidal forcing increases both the circulation strength and melting, with the strongest impact on the cold cavity case. Our results highlight the importance of including a complete melt parameterisation and tidal forcing. In response to the 2.4 degrees C ocean warming initially applied to a cold cavity ice shelf, we find that melting will increase by about an order of magnitude (24 x with tides and 41 x without tides).

Rights

This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.

Original Publication Citation

Gwyther, D. E., Cougnon, E. A., Galton-Fenzi, B. K., Roberts, J. L., Hunter, J. R., & Dinniman, M. S. (2016). Modelling the response of ice shelf basal melting to different ocean cavity environmental regimes. Annals of Glaciology, 57(73), 131-141. doi:10.1017/aog.2016.31

ORCID

0000-0001-7519-9278 (Dinniman)

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