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About this collection

Extent

1 digital object.

Cite This Work

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

Description

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.

Date Collected

• 1994 to 2018

Date Issued

• 2020

Authors

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

Principal Investigator

• Fricker, Helen A.

Co Principal Investigator

• Padman, Laurie

Funding

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

Geographic

• Antarctica

Topics

• Firn layer
• Ice shelves
• Melt rates

Formats

View formats within this collection

• data
• text

Language

• English

Identifier

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

Related Resources

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