Articles | Volume 18, issue 4
Research article
28 Jul 2022
Research article |  | 28 Jul 2022

Evaluation of basal melting parameterisations using in situ ocean and melting observations from the Amery Ice Shelf, East Antarctica

Madelaine Rosevear, Benjamin Galton-Fenzi, and Craig Stevens

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Cited articles

Adusumilli, S., Fricker, H. A., Siegfried, M. R., Padman, L., Paolo, F. S., and Ligtenberg, S. R. M.: Variable Basal Melt Rates of Antarctic Peninsula Ice Shelves, 1994–2016, Geophys. Res. Lett., 45, 4086–4095,, 2018. a
Adusumilli, S., Fricker, H. A., Medley, B., Padman, L., and Siegfried, M. R.: Interannual variations in meltwater input to the Southern Ocean from Antarctic ice shelves, Nat. Geosci., 13, 616–620,, 2020. a, b
Allison, I.: The AMISOR project: ice shelf dynamics and ice-ocean interaction of the Amery Ice Shelf, FRISP Report, 14, 1–9, (last access: 18 July 2022), 2003. a
Allison, I. and Craven, M.: Amery Ice Shelf – hot water drill borehole, AM06 Seabird MicroCAT CTD moorings at three depths in ocean cavity beneath the shelf, Ver. 1, Australian Antarctic Data Centre [data set],, 2013. a
Arzeno, I. B., Beardsley, R. C., Limeburner, R., Owens, B., Padman, L., Springer, S. R., Stewart, C. L., and Williams, M. J.: Ocean variability contributing to basal melt rate near the ice front of Ross Ice Shelf, Antarctica, J. Geophys. Res.-Oceans, 119, 4214–4233,, 2014. a
Short summary
Understanding ocean-driven melting of Antarctic ice shelves is critical for predicting future sea level. However, ocean observations from beneath ice shelves are scarce. Here, we present unique ocean and melting data from the Amery Ice Shelf, East Antarctica. We use our observations to evaluate common methods of representing melting in ocean–climate models (melting parameterisations) and show that these parameterisations overestimate melting when the ocean is warm and/or currents are weak.