Articles | Volume 14, issue 4
https://doi.org/10.5194/tc-14-1399-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-14-1399-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
27 Apr 2020
Research article |
| 27 Apr 2020
| 27 Apr 2020
Getz Ice Shelf melt enhanced by freshwater discharge from beneath the West Antarctic Ice Sheet
Institute for Geophysics and Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USA
Donald D. Blankenship
Institute for Geophysics and Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USA
Jamin S. Greenbaum
Institute for Geophysics and Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USA
Noel Gourmelen
School of GeoSciences, University of Edinburgh, Edinburgh, UK
Christine F. Dow
Department of Geography and Environmental Management, University of Waterloo, Waterloo, Ontario, Canada
Thomas G. Richter
Institute for Geophysics and Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USA
Chad A. Greene
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
Duncan A. Young
Institute for Geophysics and Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, Texas, USA
SangHoon Lee
Korea Polar Research Institute, Incheon, South Korea
Tae-Wan Kim
Korea Polar Research Institute, Incheon, South Korea
Won Sang Lee
Korea Polar Research Institute, Incheon, South Korea
Karen M. Assmann
Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden
present address: Institute of Marine Research, Tromsø, Norway
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Cited
37 citations as recorded by crossref.
- On the Multiscale Oceanic Heat Transports Toward the Bases of the Antarctic Ice Shelves Z. Wang et al. 10.34133/olar.0010
- Temporal and spatial changes of the basal channel of the Getz Ice Shelf in Antarctica derived from multi-source data Z. Wang et al. 10.1007/s13131-022-1989-1
- The role of channelized basal melt in ice-shelf stability: recent progress and future priorities K. Alley et al. 10.1017/aog.2023.5
- Subglacial Freshwater Drainage Increases Simulated Basal Melt of the Totten Ice Shelf D. Gwyther et al. 10.1029/2023GL103765
- Drygalski Ice Tongue stability influenced by rift formation and ice morphology C. Indrigo et al. 10.1017/jog.2020.99
- Can rifts alter ocean dynamics beneath ice shelves? M. Poinelli et al. 10.5194/tc-17-2261-2023
- The Scientific Legacy of NASA’s Operation IceBridge J. MacGregor et al. 10.1029/2020RG000712
- Widespread increase in dynamic imbalance in the Getz region of Antarctica from 1994 to 2018 H. Selley et al. 10.1038/s41467-021-21321-1
- Outbursts from an ice-marginal lake in Antarctica in 1969–1971 and 2017, revealed by aerial photographs and satellite data S. Hata et al. 10.1038/s41598-023-47522-w
- The complex basal morphology and ice dynamics of the Nansen Ice Shelf, East Antarctica C. Dow et al. 10.5194/tc-18-1105-2024
- Subglacial discharge accelerates future retreat of Denman and Scott Glaciers, East Antarctica T. Pelle et al. 10.1126/sciadv.adi9014
- Impact of Subglacial Freshwater Discharge on Pine Island Ice Shelf Y. Nakayama et al. 10.1029/2021GL093923
- Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics A. Aitken et al. 10.1029/2021RG000767
- Evolution of sub-ice-shelf channels reveals changes in ocean-driven melt in West Antarctica K. Alley et al. 10.1017/jog.2024.20
- Rapid, buoyancy-driven ice-sheet retreat of hundreds of metres per day C. Batchelor et al. 10.1038/s41586-023-05876-1
- Contemporary ice sheet thinning drives subglacial groundwater exfiltration with potential feedbacks on glacier flow A. Robel et al. 10.1126/sciadv.adh3693
- Constraints on subglacial melt fluxes from observations of active subglacial lake recharge G. Malczyk et al. 10.1017/jog.2023.70
- Remote Control of Filchner‐Ronne Ice Shelf Melt Rates by the Antarctic Slope Current C. Bull et al. 10.1029/2020JC016550
- Glacial Ice Melting Stimulates Heterotrophic Prokaryotes Production on the Getz Ice Shelf in the Amundsen Sea, Antarctica J. Min et al. 10.1029/2021GL097627
- Constraining an Ocean Model Under Getz Ice Shelf, Antarctica, Using A Gravity‐Derived Bathymetry R. Millan et al. 10.1029/2019GL086522
- Antarctic basal environment shaped by high-pressure flow through a subglacial river system C. Dow et al. 10.1038/s41561-022-01059-1
- Morphological changes and future projections of the Getz Ice shelf, western Antarctica—A statistical and geospatial approach A. Srivastava et al. 10.1016/j.rsma.2023.103144
- Repeat Subglacial Lake Drainage and Filling Beneath Thwaites Glacier G. Malczyk et al. 10.1029/2020GL089658
- The role of subglacial hydrology in Antarctic ice sheet dynamics and stability: a modelling perspective C. Dow 10.1017/aog.2023.9
- Morphometry of bedrock meltwater channels on Antarctic inner continental shelves: Implications for channel development and subglacial hydrology J. Kirkham et al. 10.1016/j.geomorph.2020.107369
- Subglacial lakes and their changing role in a warming climate S. Livingstone et al. 10.1038/s43017-021-00246-9
- Examining the effect of ice dynamic changes on subglacial hydrology through modelling of a synthetic Antarctic glacier A. Hayden & C. Dow 10.1017/jog.2023.65
- Ice‐Shelf Basal Melt Channels Stabilized by Secondary Flow M. Wearing et al. 10.1029/2021GL094872
- Southern Ocean warming and Antarctic ice shelf melting in conditions plausible by late 23rd century in a high-end scenario P. Mathiot & N. Jourdain 10.5194/os-19-1595-2023
- Basal Channel System and Polynya Effect on a Regional Air‐Ice‐Ocean‐Biology Environment System in the Prydz Bay, East Antarctica T. Wang et al. 10.1029/2023JF007286
- Modeling the thermal processes within the ice shelf–ocean boundary current underlain by strong pycnocline underneath a cold-water ice shelf using a 2.5-dimensional vertical slice model C. Cheng et al. 10.1016/j.ocemod.2022.102079
- The stability of present-day Antarctic grounding lines – Part 2: Onset of irreversible retreat of Amundsen Sea glaciers under current climate on centennial timescales cannot be excluded R. Reese et al. 10.5194/tc-17-3761-2023
- Persistent, extensive channelized drainage modeled beneath Thwaites Glacier, West Antarctica A. Hager et al. 10.5194/tc-16-3575-2022
- PARASO, a circum-Antarctic fully coupled ice-sheet–ocean–sea-ice–atmosphere–land model involving f.ETISh1.7, NEMO3.6, LIM3.6, COSMO5.0 and CLM4.5 C. Pelletier et al. 10.5194/gmd-15-553-2022
- Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica A. Lepp et al. 10.3389/feart.2022.863200
- Contrasting optical properties of dissolved organic matter between oceanic regions near the Getz and Dotson ice shelves in the Amundsen Sea, West Antarctica J. Son et al. 10.1016/j.marchem.2023.104335
- Glaciological history and structural evolution of the Shackleton Ice Shelf system, East Antarctica, over the past 60 years S. Thompson et al. 10.5194/tc-17-157-2023
37 citations as recorded by crossref.
- On the Multiscale Oceanic Heat Transports Toward the Bases of the Antarctic Ice Shelves Z. Wang et al. 10.34133/olar.0010
- Temporal and spatial changes of the basal channel of the Getz Ice Shelf in Antarctica derived from multi-source data Z. Wang et al. 10.1007/s13131-022-1989-1
- The role of channelized basal melt in ice-shelf stability: recent progress and future priorities K. Alley et al. 10.1017/aog.2023.5
- Subglacial Freshwater Drainage Increases Simulated Basal Melt of the Totten Ice Shelf D. Gwyther et al. 10.1029/2023GL103765
- Drygalski Ice Tongue stability influenced by rift formation and ice morphology C. Indrigo et al. 10.1017/jog.2020.99
- Can rifts alter ocean dynamics beneath ice shelves? M. Poinelli et al. 10.5194/tc-17-2261-2023
- The Scientific Legacy of NASA’s Operation IceBridge J. MacGregor et al. 10.1029/2020RG000712
- Widespread increase in dynamic imbalance in the Getz region of Antarctica from 1994 to 2018 H. Selley et al. 10.1038/s41467-021-21321-1
- Outbursts from an ice-marginal lake in Antarctica in 1969–1971 and 2017, revealed by aerial photographs and satellite data S. Hata et al. 10.1038/s41598-023-47522-w
- The complex basal morphology and ice dynamics of the Nansen Ice Shelf, East Antarctica C. Dow et al. 10.5194/tc-18-1105-2024
- Subglacial discharge accelerates future retreat of Denman and Scott Glaciers, East Antarctica T. Pelle et al. 10.1126/sciadv.adi9014
- Impact of Subglacial Freshwater Discharge on Pine Island Ice Shelf Y. Nakayama et al. 10.1029/2021GL093923
- Antarctic Sedimentary Basins and Their Influence on Ice‐Sheet Dynamics A. Aitken et al. 10.1029/2021RG000767
- Evolution of sub-ice-shelf channels reveals changes in ocean-driven melt in West Antarctica K. Alley et al. 10.1017/jog.2024.20
- Rapid, buoyancy-driven ice-sheet retreat of hundreds of metres per day C. Batchelor et al. 10.1038/s41586-023-05876-1
- Contemporary ice sheet thinning drives subglacial groundwater exfiltration with potential feedbacks on glacier flow A. Robel et al. 10.1126/sciadv.adh3693
- Constraints on subglacial melt fluxes from observations of active subglacial lake recharge G. Malczyk et al. 10.1017/jog.2023.70
- Remote Control of Filchner‐Ronne Ice Shelf Melt Rates by the Antarctic Slope Current C. Bull et al. 10.1029/2020JC016550
- Glacial Ice Melting Stimulates Heterotrophic Prokaryotes Production on the Getz Ice Shelf in the Amundsen Sea, Antarctica J. Min et al. 10.1029/2021GL097627
- Constraining an Ocean Model Under Getz Ice Shelf, Antarctica, Using A Gravity‐Derived Bathymetry R. Millan et al. 10.1029/2019GL086522
- Antarctic basal environment shaped by high-pressure flow through a subglacial river system C. Dow et al. 10.1038/s41561-022-01059-1
- Morphological changes and future projections of the Getz Ice shelf, western Antarctica—A statistical and geospatial approach A. Srivastava et al. 10.1016/j.rsma.2023.103144
- Repeat Subglacial Lake Drainage and Filling Beneath Thwaites Glacier G. Malczyk et al. 10.1029/2020GL089658
- The role of subglacial hydrology in Antarctic ice sheet dynamics and stability: a modelling perspective C. Dow 10.1017/aog.2023.9
- Morphometry of bedrock meltwater channels on Antarctic inner continental shelves: Implications for channel development and subglacial hydrology J. Kirkham et al. 10.1016/j.geomorph.2020.107369
- Subglacial lakes and their changing role in a warming climate S. Livingstone et al. 10.1038/s43017-021-00246-9
- Examining the effect of ice dynamic changes on subglacial hydrology through modelling of a synthetic Antarctic glacier A. Hayden & C. Dow 10.1017/jog.2023.65
- Ice‐Shelf Basal Melt Channels Stabilized by Secondary Flow M. Wearing et al. 10.1029/2021GL094872
- Southern Ocean warming and Antarctic ice shelf melting in conditions plausible by late 23rd century in a high-end scenario P. Mathiot & N. Jourdain 10.5194/os-19-1595-2023
- Basal Channel System and Polynya Effect on a Regional Air‐Ice‐Ocean‐Biology Environment System in the Prydz Bay, East Antarctica T. Wang et al. 10.1029/2023JF007286
- Modeling the thermal processes within the ice shelf–ocean boundary current underlain by strong pycnocline underneath a cold-water ice shelf using a 2.5-dimensional vertical slice model C. Cheng et al. 10.1016/j.ocemod.2022.102079
- The stability of present-day Antarctic grounding lines – Part 2: Onset of irreversible retreat of Amundsen Sea glaciers under current climate on centennial timescales cannot be excluded R. Reese et al. 10.5194/tc-17-3761-2023
- Persistent, extensive channelized drainage modeled beneath Thwaites Glacier, West Antarctica A. Hager et al. 10.5194/tc-16-3575-2022
- PARASO, a circum-Antarctic fully coupled ice-sheet–ocean–sea-ice–atmosphere–land model involving f.ETISh1.7, NEMO3.6, LIM3.6, COSMO5.0 and CLM4.5 C. Pelletier et al. 10.5194/gmd-15-553-2022
- Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica A. Lepp et al. 10.3389/feart.2022.863200
- Contrasting optical properties of dissolved organic matter between oceanic regions near the Getz and Dotson ice shelves in the Amundsen Sea, West Antarctica J. Son et al. 10.1016/j.marchem.2023.104335
- Glaciological history and structural evolution of the Shackleton Ice Shelf system, East Antarctica, over the past 60 years S. Thompson et al. 10.5194/tc-17-157-2023
Latest update: 29 Jun 2024
Short summary
Getz Ice Shelf is the largest meltwater source from Antarctica of the Southern Ocean. This study compares the relative importance of the meltwater production of Getz from both ocean and subglacial sources. We show that basal melt rates are elevated where bathymetric troughs provide pathways for warm Circumpolar Deep Water to enter the Getz Ice Shelf cavity. In particular, we find that subshelf melting is enhanced where subglacially discharged fresh water flows across the grounding line.
Getz Ice Shelf is the largest meltwater source from Antarctica of the Southern Ocean. This study...
