Articles | Volume 9, issue 2
Earth Syst. Sci. Data, 9, 849–860, 2017
Earth Syst. Sci. Data, 9, 849–860, 2017

  20 Nov 2017

20 Nov 2017

Strong tidal variations in ice flow observed across the entire Ronne Ice Shelf and adjoining ice streams

Sebastian H. R. Rosier et al.

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Cited articles

Anandakrishnan, S. and Alley, R.: Tidal forcing of basal seismicity of ice stream C, West Antarctica, observed far inland, J. Geophys. Res., 102, 15813–15196,, 1997.
Anandakrishnan, S., Voigt, D. E., and Alley, R. B.: Ice stream D flow speed is strongly modulated by the tide beneath the Ross Ice Shelf, Geophys. Res. Lett., 30, 1361,, 2003.
Bindschadler, R. A., King, M. A., Alley, R. B., Anandakrishnan, S., and Padman, L.: Tidally controlled stick-slip discharge of a West Antasrctic ice stream, Science, 301, 1087–1089,, 2003a.
Bindschadler, R. A., Vornberger, P. L., King, M. A., and Padman, L.: Tidally driven stickslip motion in the mouth of Whillans Ice Stream, Antarctica, Ann. Glaciol., 36, 263–272,, 2003b.
Brunt, K. M. and MacAyeal, D. R.: Tidal modulation of ice-shelf flow: a viscous model of the Ross Ice Shelf, J. Glaciol., 60, 500–508,, 2014.
Short summary
Tides can affect the flow of ice at hourly to yearly timescales. In some cases the ice responds at a different frequency than is found in the tidal forcing; for example, on Rutford Ice Stream the strongest response is at a fortnightly period. A new compilation of GPS data across the Ronne Ice Shelf and adjoining ice streams shows that this fortnightly modulation in ice flow is found across the entire region. Measurements of this kind can provide insights into ice rheology and basal processes.