Articles | Volume 9, issue 2
Earth Syst. Sci. Data, 9, 849–860, 2017
https://doi.org/10.5194/essd-9-849-2017
Earth Syst. Sci. Data, 9, 849–860, 2017
https://doi.org/10.5194/essd-9-849-2017

  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.

Data sets

Timeseries from GPS units deployed on ice streams and the adjoining ice shelf across the Filchner-Ronne region, Antarctica, 2005-2016 N. Fenney, H. Gudmundsson, and S. Rosier https://doi.org/10.5285/4fe11286-0e53-4a03-854c-a79a44d1e356

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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.