Articles | Volume 16, issue 10
https://doi.org/10.5194/tc-16-3971-2022
https://doi.org/10.5194/tc-16-3971-2022
Research article
 | 
06 Oct 2022
Research article |  | 06 Oct 2022

Simulations of firn processes over the Greenland and Antarctic ice sheets: 1980–2021

Brooke Medley, Thomas A. Neumann, H. Jay Zwally, Benjamin E. Smith, and C. Max Stevens

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Latest update: 27 Mar 2024
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Short summary
Satellite altimeters measure the height or volume change over Earth's ice sheets, but in order to understand how that change translates into ice mass, we must account for various processes at the surface. Specifically, snowfall events generate large, transient increases in surface height, yet snow fall has a relatively low density, which means much of that height change is composed of air. This air signal must be removed from the observed height changes before we can assess ice mass change.