The Cryosphere
The Cryosphere
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Articles | Volume 19, issue 10
Articles | Volume 19, issue 10
https://doi.org/10.5194/tc-19-4805-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-4805-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 10
Research article
 | 
21 Oct 2025
Research article |  | 21 Oct 2025

Sea ice concentration estimates from ICESat-2 linear ice fraction – Part 1: Multi-sensor comparison of sea ice concentration products

Ellen M. Buckley, Christopher Horvat, and Pittayuth Yoosiri

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Short summary
Sea ice coverage is a key indicator of changes in polar and global climate. There is a long (over 40 years) record of sea ice concentration and area from passive microwave measurements. In this work we show the biases in these data based on high-resolution imagery. We also suggest the use of ICESat-2, a high- resolution satellite laser, that can supplement the passive microwave estimates.
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