Adusumilli, Susheel; Fricker, Helen A.; Medley, Brooke C.; Padman, Laurie; Siegfried, Matthew R. (2020). Data from: Interannual variations in meltwater input to the Southern Ocean from Antarctic ice shelves. UC San Diego Library Digital Collections. https://doi.org/10.6075/J04Q7SHT

Ocean-driven basal melting of Antarctic ice shelves is the largest component of ice sheet mass loss, influencing grounded-ice dynamics and the global ocean. Existing datasets do not represent the known time and space variability of melt rates around Antarctica, leading to unrealistic forcing of ice sheet and climate models. Here, we use satellite radar altimeter data from 1994 to 2018, combined with satellite-derived velocities and a new model of the surface firn-layer evolution, to develop a map of high-resolution melt rates (2010-2018 average) and a time series of thickness changes for 1994-2018, for almost all ice shelf areas.

• 1994 to 2018

• 2020

• Adusumilli, Susheel
• Medley, Brooke C.
• Siegfried, Matthew R.

• Fricker, Helen A.

• Padman, Laurie

NASA grant NNX17AI03G
NASA grant NNX17AG63G
NASA Earth and Space Science Fellowship

• Antarctica

• Firn layer
• Ice shelves
• Melt rates

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Tile Map Hybrid Satellite

©2025 MapQuest, © Mapbox, © OpenStreetMap | Terms

Polygon: -60,-180 -60,180 -90,180 -90,-180 -60,-180

• data
• text

• English

Identifier: Brooke C. Medley: https://orcid.org/0000-0002-9838-3665

Identifier: Helen A. Fricker: https://orcid.org/0000-0002-0921-1432

Identifier: Laurie Padman: https://orcid.org/0000-0003-2010-642X

Identifier: Matthew R. Siegfried: https://orcid.org/0000-0002-0868-4633

Identifier: Susheel Adusumilli: http://orcid.org/0000-0002-2606-3531

Doi: https://doi.org/10.6075/J04Q7SHT

Primary associated publication

• Adusumilli, S., Fricker, H.A., Medley, B. et al. Interannual variations in meltwater input to the Southern Ocean from Antarctic ice shelves. Nat. Geosci. 13, 616–620 (2020). https://doi.org/10.1038/s41561-020-0616-z

Reference

• GitHub repository containing code to read and process these data: https://github.com/sioglaciology/ice_shelf_change

Creative Commons Attribution 4.0 International Public License

• UC Regents

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2023-06-06