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

Rosier, Sebastian H. R.; Gudmundsson, G. Hilmar; King, Matt A.; Nicholls, Keith W.; Makinson, Keith; Corr, Hugh F. J.

doi:https://doi.org/10.5194/essd-9-849-2017

Articles | Volume 9, issue 2

https://doi.org/10.5194/essd-9-849-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/essd-9-849-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 9, issue 2

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, G. Hilmar Gudmundsson, Matt A. King, Keith W. Nicholls, Keith Makinson, and Hugh F. J. Corr

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Final revised paper (published on 20 Nov 2017)
Preprint (discussion started on 17 Jul 2017)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Reviewer comments', Laurence Padman, 26 Jul 2017
- AC2: 'Reply to Laurence Padman', Sebastian Rosier, 28 Sep 2017
RC2: 'Review of “Strong tidal variations in ice flow observed across the entire Ronne Ice Shelf and adjoining ice streams"', Ryan Walker, 05 Sep 2017
- AC1: 'Response to Ryan Walker', Sebastian Rosier, 28 Sep 2017

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.