Articles | Volume 10, issue 4
https://doi.org/10.5194/tc-10-1883-2016
© Author(s) 2016. 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-10-1883-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
25 Aug 2016
Research article |
| 25 Aug 2016
Persistence and variability of ice-stream grounding lines on retrograde bed slopes
Department of Earth and Planetary Sciences,
Harvard University, Cambridge, Massachusetts, USA
Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California, USA
Department of the Geophysical Sciences, University of Chicago, Chicago, Illinois, USA
Christian Schoof
Department of Earth and Ocean Sciences, University
of British Columbia, Vancouver, British Columbia, Canada
Eli Tziperman
Department of Earth and Planetary Sciences,
Harvard University, Cambridge, Massachusetts, USA
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Cited
23 citations as recorded by crossref.
- Current state and future perspectives on coupled ice-sheet – sea-level modelling B. de Boer et al. 10.1016/j.quascirev.2017.05.013
- Boundary layer models for calving marine outlet glaciers C. Schoof et al. 10.5194/tc-11-2283-2017
- Stopping the flood: could we use targeted geoengineering to mitigate sea level rise? M. Wolovick & J. Moore 10.5194/tc-12-2955-2018
- An Overview of Interactions and Feedbacks Between Ice Sheets and the Earth System J. Fyke et al. 10.1029/2018RG000600
- Processes controlling the downstream evolution of ice rheology in glacier shear margins: case study on Rutford Ice Stream, West Antarctica B. MINCHEW et al. 10.1017/jog.2018.47
- 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
- From cyclic ice streaming to Heinrich-like events: the grow-and-surge instability in the Parallel Ice Sheet Model J. Feldmann & A. Levermann 10.5194/tc-11-1913-2017
- Dilation of subglacial sediment governs incipient surge motion in glaciers with deformable beds B. Minchew & C. Meyer 10.1098/rspa.2020.0033
- Impact of Fjord Geometry on Grounding Line Stability H. Åkesson et al. 10.3389/feart.2018.00071
- Steep Glacier Bed Knickpoints Mitigate Inland Thinning in Greenland D. Felikson et al. 10.1029/2020GL090112
- Out-of-the-box calving-front detection method using deep learning O. Herrmann et al. 10.5194/tc-17-4957-2023
- Feasibility of ice sheet conservation using seabed anchored curtains B. Keefer et al. 10.1093/pnasnexus/pgad053
- Is ice sheet collapse in West Antarctica unstoppable? C. Hulbe 10.1126/science.aam9728
- Exceptions to bed-controlled ice sheet flow and retreat from glaciated continental margins worldwide S. Greenwood et al. 10.1126/sciadv.abb6291
- Pixelwise Distance Regression for Glacier Calving Front Detection and Segmentation A. Davari et al. 10.1109/TGRS.2022.3158591
- The tipping points and early warning indicators for Pine Island Glacier, West Antarctica S. Rosier et al. 10.5194/tc-15-1501-2021
- Effects of calving and submarine melting on steady states and stability of buttressed marine ice sheets M. Haseloff & O. Sergienko 10.1017/jog.2022.29
- Grounding-line flux conditions for marine ice-sheet systems under effective-pressure- dependent and hybrid friction laws T. Gregov et al. 10.1017/jfm.2023.760
- Nunataks as barriers to ice flow: implications for palaeo ice sheet reconstructions M. Mas e Braga et al. 10.5194/tc-15-4929-2021
- Bed topography and marine ice-sheet stability O. Sergienko & D. Wingham 10.1017/jog.2021.79
- 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
- Brief communication: Understanding solar geoengineering's potential to limit sea level rise requires attention from cryosphere experts P. Irvine et al. 10.5194/tc-12-2501-2018
- Ambiguous stability of glaciers at bed peaks A. Robel et al. 10.1017/jog.2022.31
23 citations as recorded by crossref.
- Current state and future perspectives on coupled ice-sheet – sea-level modelling B. de Boer et al. 10.1016/j.quascirev.2017.05.013
- Boundary layer models for calving marine outlet glaciers C. Schoof et al. 10.5194/tc-11-2283-2017
- Stopping the flood: could we use targeted geoengineering to mitigate sea level rise? M. Wolovick & J. Moore 10.5194/tc-12-2955-2018
- An Overview of Interactions and Feedbacks Between Ice Sheets and the Earth System J. Fyke et al. 10.1029/2018RG000600
- Processes controlling the downstream evolution of ice rheology in glacier shear margins: case study on Rutford Ice Stream, West Antarctica B. MINCHEW et al. 10.1017/jog.2018.47
- 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
- From cyclic ice streaming to Heinrich-like events: the grow-and-surge instability in the Parallel Ice Sheet Model J. Feldmann & A. Levermann 10.5194/tc-11-1913-2017
- Dilation of subglacial sediment governs incipient surge motion in glaciers with deformable beds B. Minchew & C. Meyer 10.1098/rspa.2020.0033
- Impact of Fjord Geometry on Grounding Line Stability H. Åkesson et al. 10.3389/feart.2018.00071
- Steep Glacier Bed Knickpoints Mitigate Inland Thinning in Greenland D. Felikson et al. 10.1029/2020GL090112
- Out-of-the-box calving-front detection method using deep learning O. Herrmann et al. 10.5194/tc-17-4957-2023
- Feasibility of ice sheet conservation using seabed anchored curtains B. Keefer et al. 10.1093/pnasnexus/pgad053
- Is ice sheet collapse in West Antarctica unstoppable? C. Hulbe 10.1126/science.aam9728
- Exceptions to bed-controlled ice sheet flow and retreat from glaciated continental margins worldwide S. Greenwood et al. 10.1126/sciadv.abb6291
- Pixelwise Distance Regression for Glacier Calving Front Detection and Segmentation A. Davari et al. 10.1109/TGRS.2022.3158591
- The tipping points and early warning indicators for Pine Island Glacier, West Antarctica S. Rosier et al. 10.5194/tc-15-1501-2021
- Effects of calving and submarine melting on steady states and stability of buttressed marine ice sheets M. Haseloff & O. Sergienko 10.1017/jog.2022.29
- Grounding-line flux conditions for marine ice-sheet systems under effective-pressure- dependent and hybrid friction laws T. Gregov et al. 10.1017/jfm.2023.760
- Nunataks as barriers to ice flow: implications for palaeo ice sheet reconstructions M. Mas e Braga et al. 10.5194/tc-15-4929-2021
- Bed topography and marine ice-sheet stability O. Sergienko & D. Wingham 10.1017/jog.2021.79
- 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
- Brief communication: Understanding solar geoengineering's potential to limit sea level rise requires attention from cryosphere experts P. Irvine et al. 10.5194/tc-12-2501-2018
- Ambiguous stability of glaciers at bed peaks A. Robel et al. 10.1017/jog.2022.31
Saved (preprint)
Latest update: 28 May 2025
Short summary
Portions of the Antarctic Ice Sheet edge that rest on upward-sloping beds have the potential to collapse irreversibly and raise global sea level. Using a numerical model, we show that changes in the slipperiness of sediments beneath fast-flowing ice streams can cause them to persist on upward-sloping beds for hundreds to thousands of years before reversing direction. This type of behavior is important to consider as a possibility when interpreting observations of ongoing ice sheet change.
Portions of the Antarctic Ice Sheet edge that rest on upward-sloping beds have the potential to...
