Articles | Volume 10, issue 6
https://doi.org/10.5194/tc-10-2623-2016
© 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-10-2623-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
09 Nov 2016
Research article |
| 09 Nov 2016
Dynamic influence of pinning points on marine ice-sheet stability: a numerical study in Dronning Maud Land, East Antarctica
Laboratoire de Glaciologie, DGES, Université libre de Bruxelles, Brussels, Belgium
Frank Pattyn
Laboratoire de Glaciologie, DGES, Université libre de Bruxelles, Brussels, Belgium
Sophie Berger
Laboratoire de Glaciologie, DGES, Université libre de Bruxelles, Brussels, Belgium
Reinhard Drews
Laboratoire de Glaciologie, DGES, Université libre de Bruxelles, Brussels, Belgium
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Cited
46 citations as recorded by crossref.
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- Kinematic response of ice-rise divides to changes in ocean and atmosphere forcing C. Schannwell et al. 10.5194/tc-13-2673-2019
- Progress in Numerical Modeling of Antarctic Ice-Sheet Dynamics F. Pattyn et al. 10.1007/s40641-017-0069-7
- Mechanical analysis of pinning points in the Ross Ice Shelf, Antarctica H. Still et al. 10.1017/aog.2018.31
- Reconstruction of ice sheet retreat after the Last Glacial maximum in Storfjorden, southern Svalbard T. Nielsen & T. Rasmussen 10.1016/j.margeo.2017.12.003
- Recent rift formation and impact on the structural integrity of the Brunt Ice Shelf, East Antarctica J. De Rydt et al. 10.5194/tc-12-505-2018
- Recent irreversible retreat phase of Pine Island Glacier B. Reed et al. 10.1038/s41558-023-01887-y
- ‘Stable’ and ‘unstable’ are not useful descriptions of marine ice sheets in the Earth's climate system O. Sergienko & M. Haseloff 10.1017/jog.2023.40
- Progressive unanchoring of Antarctic ice shelves since 1973 B. Miles & R. Bingham 10.1038/s41586-024-07049-0
- Radar internal reflection horizons from multisystem data reflect ice dynamic and surface accumulation history along the Princess Ragnhild Coast, Dronning Maud Land, East Antarctica I. Koch et al. 10.1017/jog.2023.93
- Topographic Shelf Waves Control Seasonal Melting Near Antarctic Ice Shelf Grounding Lines S. Sun et al. 10.1029/2019GL083881
- Spatial variability of marine-terminating ice sheet retreat in the Puget Lowland M. McKenzie et al. 10.5194/cp-20-891-2024
- Differential impact of isolated topographic bumps on ice sheet flow and subglacial processes M. McKenzie et al. 10.5194/tc-17-2477-2023
- Actively evolving subglacial conduits and eskers initiate ice shelf channels at an Antarctic grounding line R. Drews et al. 10.1038/ncomms15228
- Weakening of the pinning point buttressing Thwaites Glacier, West Antarctica C. Wild et al. 10.5194/tc-16-397-2022
- Streamlined subglacial bedform sensitivity to bed characteristics across the deglaciated Northern Hemisphere M. McKenzie et al. 10.1002/esp.5382
- Characteristics of ice rises and ice rumples in Dronning Maud Land and Enderby Land, Antarctica V. Goel et al. 10.1017/jog.2020.77
- Mechanics and dynamics of pinning points on the Shirase Coast, West Antarctica H. Still & C. Hulbe 10.5194/tc-15-2647-2021
- Modeling the Response of Nioghalvfjerdsfjorden and Zachariae Isstrøm Glaciers, Greenland, to Ocean Forcing Over the Next Century Y. Choi et al. 10.1002/2017GL075174
- Roughness of Ice Shelves Is Correlated With Basal Melt Rates R. Watkins et al. 10.1029/2021GL094743
- Nunataks as barriers to ice flow: implications for palaeo ice sheet reconstructions M. Mas e Braga et al. 10.5194/tc-15-4929-2021
- Glaciological settings and recent mass balance of Blåskimen Island in Dronning Maud Land, Antarctica V. Goel et al. 10.5194/tc-11-2883-2017
- Asymptotic analysis of subglacial plumes in stratified environments A. Bradley et al. 10.1098/rspa.2021.0846
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- Subglacial topography and ice flux along the English Coast of Palmer Land, Antarctic Peninsula K. Winter et al. 10.5194/essd-12-3453-2020
- Developments in Simulating and Parameterizing Interactions Between the Southern Ocean and the Antarctic Ice Sheet X. Asay-Davis et al. 10.1007/s40641-017-0071-0
- Hydroacoustic, Meteorologic and Seismic Observations of the 2016 Nansen Ice Shelf Calving Event and Iceberg Formation R. Dziak et al. 10.3389/feart.2019.00183
- Detecting high spatial variability of ice shelf basal mass balance, Roi Baudouin Ice Shelf, Antarctica S. Berger et al. 10.5194/tc-11-2675-2017
- Sub-Annual Calving Front Migration, Area Change and Calving Rates from Swath Mode CryoSat-2 Altimetry, on Filchner-Ronne Ice Shelf, Antarctica J. Wuite et al. 10.3390/rs11232761
- Detailed Seismic Bathymetry Beneath Ekström Ice Shelf, Antarctica: Implications for Glacial History and Ice‐Ocean Interaction E. Smith et al. 10.1029/2019GL086187
- Crevasse initiation and history within the McMurdo Shear Zone, Antarctica L. Kaluzienski et al. 10.1017/jog.2019.65
- Localised thickening and grounding of an Antarctic ice shelf from tidal triggering and sizing of cryoseismicity M. Pirli et al. 10.1016/j.epsl.2018.09.024
- Revealing the former bed of Thwaites Glacier using sea-floor bathymetry: implications for warm-water routing and bed controls on ice flow and buttressing K. Hogan et al. 10.5194/tc-14-2883-2020
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- Submarine glacial landforms and sedimentary environments in Vaigattbogen, northeastern Spitsbergen A. Flink & R. Noormets 10.1016/j.margeo.2017.07.019
- Sea-level response to melting of Antarctic ice shelves on multi-centennial timescales with the fast Elementary Thermomechanical Ice Sheet model (f.ETISh v1.0) F. Pattyn 10.5194/tc-11-1851-2017
- Retrieving the grounding lines of the Riiser-Larsen Ice Shelf using Sentinel-1 SAR images F. Gong et al. 10.1080/17538947.2023.2229785
- The Holocene retreat dynamics and stability of Petermann Glacier in northwest Greenland M. Jakobsson et al. 10.1038/s41467-018-04573-2
- Coastal bathymetry in central Dronning Maud Land controls ice shelf stability H. Eisermann et al. 10.1038/s41598-024-51882-2
- A review of the scientific knowledge of the seascape off Dronning Maud Land, Antarctica A. Lowther et al. 10.1007/s00300-022-03059-8
- Grounding line stability in a regime of low driving and basal stresses O. Sergienko & D. Wingham 10.1017/jog.2019.53
- Assessment of sub-shelf melting parameterisations using the ocean–ice-sheet coupled model NEMO(v3.6)–Elmer/Ice(v8.3) L. Favier et al. 10.5194/gmd-12-2255-2019
- Decadal changes of Campbell Glacier Tongue in East Antarctica from 2010 to 2020 and implications of ice pinning conditions analyzed by optical and SAR datasets H. Han et al. 10.1080/15481603.2022.2055380
- The sensitivity of the Greenland Ice Sheet to glacial–interglacial oceanic forcing I. Tabone et al. 10.5194/cp-14-455-2018
46 citations as recorded by crossref.
- Bathymetric Control on Borchgrevink and Roi Baudouin Ice Shelves in East Antarctica H. Eisermann et al. 10.1029/2021JF006342
- Kinematic response of ice-rise divides to changes in ocean and atmosphere forcing C. Schannwell et al. 10.5194/tc-13-2673-2019
- Progress in Numerical Modeling of Antarctic Ice-Sheet Dynamics F. Pattyn et al. 10.1007/s40641-017-0069-7
- Mechanical analysis of pinning points in the Ross Ice Shelf, Antarctica H. Still et al. 10.1017/aog.2018.31
- Reconstruction of ice sheet retreat after the Last Glacial maximum in Storfjorden, southern Svalbard T. Nielsen & T. Rasmussen 10.1016/j.margeo.2017.12.003
- Recent rift formation and impact on the structural integrity of the Brunt Ice Shelf, East Antarctica J. De Rydt et al. 10.5194/tc-12-505-2018
- Recent irreversible retreat phase of Pine Island Glacier B. Reed et al. 10.1038/s41558-023-01887-y
- ‘Stable’ and ‘unstable’ are not useful descriptions of marine ice sheets in the Earth's climate system O. Sergienko & M. Haseloff 10.1017/jog.2023.40
- Progressive unanchoring of Antarctic ice shelves since 1973 B. Miles & R. Bingham 10.1038/s41586-024-07049-0
- Radar internal reflection horizons from multisystem data reflect ice dynamic and surface accumulation history along the Princess Ragnhild Coast, Dronning Maud Land, East Antarctica I. Koch et al. 10.1017/jog.2023.93
- Topographic Shelf Waves Control Seasonal Melting Near Antarctic Ice Shelf Grounding Lines S. Sun et al. 10.1029/2019GL083881
- Spatial variability of marine-terminating ice sheet retreat in the Puget Lowland M. McKenzie et al. 10.5194/cp-20-891-2024
- Differential impact of isolated topographic bumps on ice sheet flow and subglacial processes M. McKenzie et al. 10.5194/tc-17-2477-2023
- Actively evolving subglacial conduits and eskers initiate ice shelf channels at an Antarctic grounding line R. Drews et al. 10.1038/ncomms15228
- Weakening of the pinning point buttressing Thwaites Glacier, West Antarctica C. Wild et al. 10.5194/tc-16-397-2022
- Streamlined subglacial bedform sensitivity to bed characteristics across the deglaciated Northern Hemisphere M. McKenzie et al. 10.1002/esp.5382
- Characteristics of ice rises and ice rumples in Dronning Maud Land and Enderby Land, Antarctica V. Goel et al. 10.1017/jog.2020.77
- Mechanics and dynamics of pinning points on the Shirase Coast, West Antarctica H. Still & C. Hulbe 10.5194/tc-15-2647-2021
- Modeling the Response of Nioghalvfjerdsfjorden and Zachariae Isstrøm Glaciers, Greenland, to Ocean Forcing Over the Next Century Y. Choi et al. 10.1002/2017GL075174
- Roughness of Ice Shelves Is Correlated With Basal Melt Rates R. Watkins et al. 10.1029/2021GL094743
- Nunataks as barriers to ice flow: implications for palaeo ice sheet reconstructions M. Mas e Braga et al. 10.5194/tc-15-4929-2021
- Glaciological settings and recent mass balance of Blåskimen Island in Dronning Maud Land, Antarctica V. Goel et al. 10.5194/tc-11-2883-2017
- Asymptotic analysis of subglacial plumes in stratified environments A. Bradley et al. 10.1098/rspa.2021.0846
- Geomorphology and shallow sub-sea-floor structures underneath the Ekström Ice Shelf, Antarctica A. Oetting et al. 10.5194/tc-16-2051-2022
- Calving cycle of the Brunt Ice Shelf, Antarctica, driven by changes in ice shelf geometry J. De Rydt et al. 10.5194/tc-13-2771-2019
- Subglacial topography and ice flux along the English Coast of Palmer Land, Antarctic Peninsula K. Winter et al. 10.5194/essd-12-3453-2020
- Developments in Simulating and Parameterizing Interactions Between the Southern Ocean and the Antarctic Ice Sheet X. Asay-Davis et al. 10.1007/s40641-017-0071-0
- Hydroacoustic, Meteorologic and Seismic Observations of the 2016 Nansen Ice Shelf Calving Event and Iceberg Formation R. Dziak et al. 10.3389/feart.2019.00183
- Detecting high spatial variability of ice shelf basal mass balance, Roi Baudouin Ice Shelf, Antarctica S. Berger et al. 10.5194/tc-11-2675-2017
- Sub-Annual Calving Front Migration, Area Change and Calving Rates from Swath Mode CryoSat-2 Altimetry, on Filchner-Ronne Ice Shelf, Antarctica J. Wuite et al. 10.3390/rs11232761
- Detailed Seismic Bathymetry Beneath Ekström Ice Shelf, Antarctica: Implications for Glacial History and Ice‐Ocean Interaction E. Smith et al. 10.1029/2019GL086187
- Crevasse initiation and history within the McMurdo Shear Zone, Antarctica L. Kaluzienski et al. 10.1017/jog.2019.65
- Localised thickening and grounding of an Antarctic ice shelf from tidal triggering and sizing of cryoseismicity M. Pirli et al. 10.1016/j.epsl.2018.09.024
- Revealing the former bed of Thwaites Glacier using sea-floor bathymetry: implications for warm-water routing and bed controls on ice flow and buttressing K. Hogan et al. 10.5194/tc-14-2883-2020
- A kinematic formalism for tracking ice–ocean mass exchange on the Earth's surface and estimating sea-level change S. Adhikari et al. 10.5194/tc-14-2819-2020
- Hysteretic evolution of ice rises and ice rumples in response to variations in sea level A. Henry et al. 10.5194/tc-16-3889-2022
- Submarine glacial landforms and sedimentary environments in Vaigattbogen, northeastern Spitsbergen A. Flink & R. Noormets 10.1016/j.margeo.2017.07.019
- Sea-level response to melting of Antarctic ice shelves on multi-centennial timescales with the fast Elementary Thermomechanical Ice Sheet model (f.ETISh v1.0) F. Pattyn 10.5194/tc-11-1851-2017
- Retrieving the grounding lines of the Riiser-Larsen Ice Shelf using Sentinel-1 SAR images F. Gong et al. 10.1080/17538947.2023.2229785
- The Holocene retreat dynamics and stability of Petermann Glacier in northwest Greenland M. Jakobsson et al. 10.1038/s41467-018-04573-2
- Coastal bathymetry in central Dronning Maud Land controls ice shelf stability H. Eisermann et al. 10.1038/s41598-024-51882-2
- A review of the scientific knowledge of the seascape off Dronning Maud Land, Antarctica A. Lowther et al. 10.1007/s00300-022-03059-8
- Grounding line stability in a regime of low driving and basal stresses O. Sergienko & D. Wingham 10.1017/jog.2019.53
- Assessment of sub-shelf melting parameterisations using the ocean–ice-sheet coupled model NEMO(v3.6)–Elmer/Ice(v8.3) L. Favier et al. 10.5194/gmd-12-2255-2019
- Decadal changes of Campbell Glacier Tongue in East Antarctica from 2010 to 2020 and implications of ice pinning conditions analyzed by optical and SAR datasets H. Han et al. 10.1080/15481603.2022.2055380
- The sensitivity of the Greenland Ice Sheet to glacial–interglacial oceanic forcing I. Tabone et al. 10.5194/cp-14-455-2018
Latest update: 19 Apr 2024
Short summary
We demonstrate the short-term unstable retreat of an East Antarctic outlet glacier triggered by imposed sub-ice-shelf melt, compliant with current values, using a state-of-the-art ice-sheet model. We show that pinning points – topographic highs in contact with the ice-shelf base – have a major impact on ice-sheet stability and timing of grounding-line retreat. The study therefore calls for improving our knowledge of sub-ice-shelf bathymetry in order to reduce uncertainties in future ice loss.
We demonstrate the short-term unstable retreat of an East Antarctic outlet glacier triggered by...
