A nine-year record of slush on the Greenland Ice Sheet

Glen, Emily; Banwell, Alison F.; Miles, Katie E.; Leeson, Amber A.; Dell, Rebecca L.; McMillan, Malcolm; Maddalena, Jennifer

doi:10.5194/tc-20-4345-2026

Articles | Volume 20, issue 8

https://doi.org/10.5194/tc-20-4345-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-20-4345-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 8

Research article

|

07 Aug 2026

Research article |

| 07 Aug 2026

A nine-year record of slush on the Greenland Ice Sheet

Emily Glen, Alison F. Banwell, Katie E. Miles, Amber A. Leeson, Rebecca L. Dell, Malcolm McMillan, and Jennifer Maddalena

Supplement

https://doi.org/10.5194/tc-20-4345-2026-supplement

Data sets

A nine-year record of slush on the Greenland Ice Sheet Emily Glen https://doi.org/10.5281/zenodo.21538204

Supplementary information for ``Supervised classification of slush and ponded water on Antarctic ice shelves using Landsat 8 imagery'' R. L. Dell et al. https://doi.org/10.17863/CAM.77156

Model code and software

A nine-year record of slush on the Greenland Ice Sheet Emily Glen https://doi.org/10.5281/zenodo.21538204

Short summary

Using satellite imagery and machine learning, we created the first Greenland-wide dataset of slush (waterlogged snow) from 2016 to 2024. Slush was widespread and varied strongly between years and across Greenland, becoming most extensive during high melt seasons. It was most common where melting was greater and snow had less capacity to store water. These findings show that slush should be included in models of future melting and sea-level rise.