Articles | Volume 17, issue 7
https://doi.org/10.5194/tc-17-2585-2023
https://doi.org/10.5194/tc-17-2585-2023
Research article
 | 
04 Jul 2023
Research article |  | 04 Jul 2023

Seasonal variability in Antarctic ice shelf velocities forced by sea surface height variations

Cyrille Mosbeux, Laurie Padman, Emilie Klein, Peter D. Bromirski, and Helen A. Fricker

Related authors

A framework for automated supraglacial lake detection and depth retrieval in ICESat-2 photon data across the Greenland and Antarctic ice sheets
Philipp Sebastian Arndt and Helen Amanda Fricker
The Cryosphere, 18, 5173–5206, https://doi.org/10.5194/tc-18-5173-2024,https://doi.org/10.5194/tc-18-5173-2024, 2024
Short summary
Increased Grounding Zone Ice Flux and Dynamic Thinning Creates Vulnerable Regions on George VI Ice Shelf, Antarctic Peninsula
Indrani Das, Jowan Barnes, James Smith, Renata Constantino, Sidney Hemming, and Laurie Padman
EGUsphere, https://doi.org/10.5194/egusphere-2024-1564,https://doi.org/10.5194/egusphere-2024-1564, 2024
Short summary
Modes of Antarctic tidal grounding line migration revealed by Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) laser altimetry
Bryony I. D. Freer, Oliver J. Marsh, Anna E. Hogg, Helen Amanda Fricker, and Laurie Padman
The Cryosphere, 17, 4079–4101, https://doi.org/10.5194/tc-17-4079-2023,https://doi.org/10.5194/tc-17-4079-2023, 2023
Short summary
Widespread slowdown in thinning rates of West Antarctic ice shelves
Fernando S. Paolo, Alex S. Gardner, Chad A. Greene, Johan Nilsson, Michael P. Schodlok, Nicole-Jeanne Schlegel, and Helen A. Fricker
The Cryosphere, 17, 3409–3433, https://doi.org/10.5194/tc-17-3409-2023,https://doi.org/10.5194/tc-17-3409-2023, 2023
Short summary
A clustering-based approach to ocean model–data comparison around Antarctica
Qiang Sun, Christopher M. Little, Alice M. Barthel, and Laurie Padman
Ocean Sci., 17, 131–145, https://doi.org/10.5194/os-17-131-2021,https://doi.org/10.5194/os-17-131-2021, 2021

Related subject area

Discipline: Ice sheets | Subject: Antarctic
A facet-based numerical model to retrieve ice sheet topography from Sentinel-3 altimetry
Jérémie Aublanc, François Boy, Franck Borde, and Pierre Féménias
The Cryosphere, 19, 1937–1954, https://doi.org/10.5194/tc-19-1937-2025,https://doi.org/10.5194/tc-19-1937-2025, 2025
Short summary
Current reversal leads to regime change in the Amery Ice Shelf cavity in the 21st century
Jing Jin, Antony J. Payne, and Christopher Y. S. Bull
The Cryosphere, 19, 1873–1896, https://doi.org/10.5194/tc-19-1873-2025,https://doi.org/10.5194/tc-19-1873-2025, 2025
Short summary
Speed-up, slowdown, and redirection of ice flow on neighbouring ice streams in the Pope, Smith, and Kohler region of West Antarctica
Heather L. Selley, Anna E. Hogg, Benjamin J. Davison, Pierre Dutrieux, and Thomas Slater
The Cryosphere, 19, 1725–1738, https://doi.org/10.5194/tc-19-1725-2025,https://doi.org/10.5194/tc-19-1725-2025, 2025
Short summary
Changes in Antarctic surface conditions and potential for ice shelf hydrofracturing from 1850 to 2200
Nicolas C. Jourdain, Charles Amory, Christoph Kittel, and Gaël Durand
The Cryosphere, 19, 1641–1674, https://doi.org/10.5194/tc-19-1641-2025,https://doi.org/10.5194/tc-19-1641-2025, 2025
Short summary
A reconstruction of the ice thickness of the Antarctic Peninsula Ice Sheet north of 70° S
Kaian Shahateet, Johannes J. Fürst, Francisco Navarro, Thorsten Seehaus, Daniel Farinotti, and Matthias Braun
The Cryosphere, 19, 1577–1597, https://doi.org/10.5194/tc-19-1577-2025,https://doi.org/10.5194/tc-19-1577-2025, 2025
Short summary

Cited articles

Adusumilli, S., Fricker, H. A., Medley, B., Padman, L., and Siegfried, M. R.: Interannual variations in meltwater input to the Southern Ocean from Antarctic ice shelves, Nat. Geosci., 13, 616–620, https://doi.org/10.1038/s41561-020-0616-z, 2020. 
Armitage, T. W. K., Kwok, R., Thompson, A. F., and Cunningham, G.: Dynamic Topography and Sea Level Anomalies of the Southern Ocean: Variability and Teleconnections, J. Geophys. Res.-Oceans, 123, 613–630, https://doi.org/10.1002/2017JC013534, 2018. 
Arthern, R. J. and Wingham, D. J.: The Natural Fluctuations of Firn Densification and Their Effect on the Geodetic Determination of Ice Sheet Mass Balance, Clim. Change, 40, 605–624, https://doi.org/10.1023/A:1005320713306, 1998. 
Begeman, C. B., Tulaczyk, S., Padman, L., King, M., Siegfried, M. R., Hodson, T. O., and Fricker, H. A.: Tidal Pressurization of the Ocean Cavity Near an Antarctic Ice Shelf Grounding Line, J. Geophys. Res.-Oceans, 125, e2019JC015562, https://doi.org/10.1029/2019JC015562, 2020. 
Download
Short summary
Antarctica's ice shelves (the floating extension of the ice sheet) help regulate ice flow. As ice shelves thin or lose contact with the bedrock, the upstream ice tends to accelerate, resulting in increased mass loss. Here, we use an ice sheet model to simulate the effect of seasonal sea surface height variations and see if we can reproduce observed seasonal variability of ice velocity on the ice shelf. When correctly parameterised, the model fits the observations well.
Share