Articles | Volume 9, issue 4
https://doi.org/10.5194/tc-9-1649-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/tc-9-1649-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
21 Aug 2015
Research article |
| 21 Aug 2015
Temporal variations in the flow of a large Antarctic ice stream controlled by tidally induced changes in the subglacial water system
School of Ocean Sciences, Bangor University, Menai Bridge, LL59 5AB, UK
British Antarctic Survey, High Cross, Madingley Rd., Cambridge, CB3 0ET, UK
G. H. Gudmundsson
British Antarctic Survey, High Cross, Madingley Rd., Cambridge, CB3 0ET, UK
J. A. M. Green
School of Ocean Sciences, Bangor University, Menai Bridge, LL59 5AB, UK
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Cited
33 citations as recorded by crossref.
- Shear dilation of subglacial till results in time-dependent sliding laws K. Warburton et al. 10.1098/rspa.2022.0536
- Observing traveling waves in glaciers with remote sensing: new flexible time series methods and application to Sermeq Kujalleq (Jakobshavn Isbræ), Greenland B. Riel et al. 10.5194/tc-15-407-2021
- Highly variable friction and slip observed at Antarctic ice stream bed T. Hudson et al. 10.1038/s41561-023-01204-4
- On the interpretation of ice-shelf flexure measurements S. ROSIER et al. 10.1017/jog.2017.44
- How dynamic are ice-stream beds? D. Davies et al. 10.5194/tc-12-1615-2018
- Modes of Antarctic tidal grounding line migration revealed by Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) laser altimetry B. Freer et al. 10.5194/tc-17-4079-2023
- Tensile strength of glacial ice deduced from observations of the 2015 eastern Skaftá cauldron collapse, Vatnajökull ice cap, Iceland L. Ultee et al. 10.1017/jog.2020.65
- A shallow approximation for ice streams sliding over strong beds K. Warburton et al. 10.1017/jog.2023.47
- Exploring mechanisms responsible for tidal modulation in flow of the Filchner–Ronne Ice Shelf S. Rosier & G. Gudmundsson 10.5194/tc-14-17-2020
- Assimilation of surface velocities acquired between 1996 and 2010 to constrain the form of the basal friction law under Pine Island Glacier F. Gillet‐Chaulet et al. 10.1002/2016GL069937
- A decade of progress in observing and modelling Antarctic subglacial water systems H. Fricker et al. 10.1098/rsta.2014.0294
- Tidally induced variations in vertical and horizontal motion on Rutford Ice Stream, West Antarctica, inferred from remotely sensed observations B. Minchew et al. 10.1002/2016JF003971
- Grounding line migration from 1992 to 2011 on Petermann Glacier, North-West Greenland A. HOGG et al. 10.1017/jog.2016.83
- Not all Icequakes are Created Equal: Basal Icequakes Suggest Diverse Bed Deformation Mechanisms at Rutford Ice Stream, West Antarctica S. Kufner et al. 10.1029/2020JF006001
- Ice flow dynamics forced by water pressure variations in subglacial granular beds A. Damsgaard et al. 10.1002/2016GL071579
- Tidal bending of ice shelves as a mechanism for large-scale temporal variations in ice flow S. Rosier & G. Gudmundsson 10.5194/tc-12-1699-2018
- Strong tidal variations in ice flow observed across the entire Ronne Ice Shelf and adjoining ice streams S. Rosier et al. 10.5194/essd-9-849-2017
- Inferring Tide‐Induced Ephemeral Grounding in an Ice‐Shelf‐Stream System: Rutford Ice Stream, West Antarctica M. Zhong et al. 10.1029/2022JF006789
- Tidal Modulation of a Lateral Shear Margin: Priestley Glacier, Antarctica H. Still et al. 10.3389/feart.2022.828313
- Slow‐slip events on the Whillans Ice Plain, Antarctica, described using rate‐and‐state friction as an ice stream sliding law B. Lipovsky & E. Dunham 10.1002/2016JF004183
- Tidal Grounding‐Line Migration Modulated by Subglacial Hydrology K. Warburton et al. 10.1029/2020GL089088
- Progress in Numerical Modeling of Antarctic Ice-Sheet Dynamics F. Pattyn et al. 10.1007/s40641-017-0069-7
- Tidal modulation of ice shelf buttressing stresses A. Robel et al. 10.1017/aog.2017.22
- Grounding zone subglacial properties from calibrated active-source seismic methods H. Horgan et al. 10.5194/tc-15-1863-2021
- Ocean Tide Influences on the Antarctic and Greenland Ice Sheets L. Padman et al. 10.1002/2016RG000546
- Analysis of ice shelf flexure and its InSAR representation in the grounding zone of the southern McMurdo Ice Shelf W. Rack et al. 10.5194/tc-11-2481-2017
- Tidal Pressurization of the Ocean Cavity Near an Antarctic Ice Shelf Grounding Line C. Begeman et al. 10.1029/2019JC015562
- Data‐Driven Inference of the Mechanics of Slip Along Glacier Beds Using Physics‐Informed Neural Networks: Case Study on Rutford Ice Stream, Antarctica B. Riel et al. 10.1029/2021MS002621
- Antarctic ice-sheet structures retrieved from P-wave coda autocorrelation method and comparisons with two other single-station passive seismic methods P. Yan et al. 10.1017/jog.2019.95
- Viscosity and elasticity: a model intercomparison of ice-shelf bending in an Antarctic grounding zone C. WILD et al. 10.1017/jog.2017.15
- Sediment behavior controls equilibrium width of subglacial channels A. DAMSGAARD et al. 10.1017/jog.2017.71
- Microscale evidence of liquefaction and its potential triggers during soft-bed deformation within subglacial traction tills E. Phillips et al. 10.1016/j.quascirev.2017.12.003
- Implications of 36Cl exposure ages from Skye, northwest Scotland for the timing of ice stream deglaciation and deglacial ice dynamics D. Small et al. 10.1016/j.quascirev.2016.08.028
30 citations as recorded by crossref.
- Shear dilation of subglacial till results in time-dependent sliding laws K. Warburton et al. 10.1098/rspa.2022.0536
- Observing traveling waves in glaciers with remote sensing: new flexible time series methods and application to Sermeq Kujalleq (Jakobshavn Isbræ), Greenland B. Riel et al. 10.5194/tc-15-407-2021
- Highly variable friction and slip observed at Antarctic ice stream bed T. Hudson et al. 10.1038/s41561-023-01204-4
- On the interpretation of ice-shelf flexure measurements S. ROSIER et al. 10.1017/jog.2017.44
- How dynamic are ice-stream beds? D. Davies et al. 10.5194/tc-12-1615-2018
- Modes of Antarctic tidal grounding line migration revealed by Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) laser altimetry B. Freer et al. 10.5194/tc-17-4079-2023
- Tensile strength of glacial ice deduced from observations of the 2015 eastern Skaftá cauldron collapse, Vatnajökull ice cap, Iceland L. Ultee et al. 10.1017/jog.2020.65
- A shallow approximation for ice streams sliding over strong beds K. Warburton et al. 10.1017/jog.2023.47
- Exploring mechanisms responsible for tidal modulation in flow of the Filchner–Ronne Ice Shelf S. Rosier & G. Gudmundsson 10.5194/tc-14-17-2020
- Assimilation of surface velocities acquired between 1996 and 2010 to constrain the form of the basal friction law under Pine Island Glacier F. Gillet‐Chaulet et al. 10.1002/2016GL069937
- A decade of progress in observing and modelling Antarctic subglacial water systems H. Fricker et al. 10.1098/rsta.2014.0294
- Tidally induced variations in vertical and horizontal motion on Rutford Ice Stream, West Antarctica, inferred from remotely sensed observations B. Minchew et al. 10.1002/2016JF003971
- Grounding line migration from 1992 to 2011 on Petermann Glacier, North-West Greenland A. HOGG et al. 10.1017/jog.2016.83
- Not all Icequakes are Created Equal: Basal Icequakes Suggest Diverse Bed Deformation Mechanisms at Rutford Ice Stream, West Antarctica S. Kufner et al. 10.1029/2020JF006001
- Ice flow dynamics forced by water pressure variations in subglacial granular beds A. Damsgaard et al. 10.1002/2016GL071579
- Tidal bending of ice shelves as a mechanism for large-scale temporal variations in ice flow S. Rosier & G. Gudmundsson 10.5194/tc-12-1699-2018
- Strong tidal variations in ice flow observed across the entire Ronne Ice Shelf and adjoining ice streams S. Rosier et al. 10.5194/essd-9-849-2017
- Inferring Tide‐Induced Ephemeral Grounding in an Ice‐Shelf‐Stream System: Rutford Ice Stream, West Antarctica M. Zhong et al. 10.1029/2022JF006789
- Tidal Modulation of a Lateral Shear Margin: Priestley Glacier, Antarctica H. Still et al. 10.3389/feart.2022.828313
- Slow‐slip events on the Whillans Ice Plain, Antarctica, described using rate‐and‐state friction as an ice stream sliding law B. Lipovsky & E. Dunham 10.1002/2016JF004183
- Tidal Grounding‐Line Migration Modulated by Subglacial Hydrology K. Warburton et al. 10.1029/2020GL089088
- Progress in Numerical Modeling of Antarctic Ice-Sheet Dynamics F. Pattyn et al. 10.1007/s40641-017-0069-7
- Tidal modulation of ice shelf buttressing stresses A. Robel et al. 10.1017/aog.2017.22
- Grounding zone subglacial properties from calibrated active-source seismic methods H. Horgan et al. 10.5194/tc-15-1863-2021
- Ocean Tide Influences on the Antarctic and Greenland Ice Sheets L. Padman et al. 10.1002/2016RG000546
- Analysis of ice shelf flexure and its InSAR representation in the grounding zone of the southern McMurdo Ice Shelf W. Rack et al. 10.5194/tc-11-2481-2017
- Tidal Pressurization of the Ocean Cavity Near an Antarctic Ice Shelf Grounding Line C. Begeman et al. 10.1029/2019JC015562
- Data‐Driven Inference of the Mechanics of Slip Along Glacier Beds Using Physics‐Informed Neural Networks: Case Study on Rutford Ice Stream, Antarctica B. Riel et al. 10.1029/2021MS002621
- Antarctic ice-sheet structures retrieved from P-wave coda autocorrelation method and comparisons with two other single-station passive seismic methods P. Yan et al. 10.1017/jog.2019.95
- Viscosity and elasticity: a model intercomparison of ice-shelf bending in an Antarctic grounding zone C. WILD et al. 10.1017/jog.2017.15
3 citations as recorded by crossref.
- Sediment behavior controls equilibrium width of subglacial channels A. DAMSGAARD et al. 10.1017/jog.2017.71
- Microscale evidence of liquefaction and its potential triggers during soft-bed deformation within subglacial traction tills E. Phillips et al. 10.1016/j.quascirev.2017.12.003
- Implications of 36Cl exposure ages from Skye, northwest Scotland for the timing of ice stream deglaciation and deglacial ice dynamics D. Small et al. 10.1016/j.quascirev.2016.08.028
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Latest update: 18 Nov 2024
Short summary
We use a full-Stokes model to investigate the long period modulation of Rutford Ice Stream flow by the ocean tide. We find that using a nonlinear sliding law cannot fully explain the measurements and an additional mechanism, whereby tidally induced subglacial pressure variations are transmitted upstream from the grounding line, is also required to match the large amplitude and decay length scale of the observations.
We use a full-Stokes model to investigate the long period modulation of Rutford Ice Stream flow...
