Articles | Volume 11, issue 6
The Cryosphere, 11, 2481–2490, 2017
The Cryosphere, 11, 2481–2490, 2017

Research article 03 Nov 2017

Research article | 03 Nov 2017

Analysis of ice shelf flexure and its InSAR representation in the grounding zone of the southern McMurdo Ice Shelf

Wolfgang Rack et al.

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Cited articles

Anandakrishnan, S., Voigt, D. E., Alley, R. B., and King, M. A.: Ice stream D flow speed is strongly modulated by the tide beneath the Ross Ice Shelf, Geophys. Res. Lett., 30, 1361,, 2003.
Beer, F. B., Johnston, E. R., Dewolf, J. T., and Mazurek, D. F.: Mechanics of Materials, 6th Edn., McGraw Hill, New York, 2012.
Bindschadler, R., Choi, H., Wichlacz, A., Bingham, R., Bohlander, J., Brunt, K., Corr, H., Drews, R., Fricker, H., Hall, M., Hindmarsh, R., Kohler, J., Padman, L., Rack, W., Rotschky, G., Urbini, S., Vornberger, P., and Young, N.: Getting around Antarctica: new high-resolution mappings of the grounded and freely-floating boundaries of the Antarctic ice sheet created for the International Polar Year, The Cryosphere, 5, 569–588,, 2011.
Blick, G.: Antarctica-POLENET GPS Network: SCTB-Scott Base GPS P.S., UNAVCO, GPS Data Set,, 2010.
Brunt, K. M., Fricker, H. A., Padman, L., Scambos, T. A., and O'Neel, S.: Mapping the grounding zone of the Ross Ice Shelf, Antarctica, using ICESat laser altimetry, Ann. Glaciol., 51, 71–79,, 2010.
Short summary
Predicting changes of the Antarctic Ice Sheet involves fully understanding ice dynamics at the transition between grounded and floating ice. We map tidal bending of ice by satellite using InSAR, and we use precise GPS measurements with assumptions of tidal elastic bending to better interpret the satellite signal. It allows us to better define the grounding-line position and to refine the shape of tidal flexure profiles.