Western Arctic wintertime mixed-phase clouds: Observed modulation by sea ice conditions,  long-term variabilities and trends

Saavedra Garfias, Pablo; Kalesse-Los, Heike

doi:10.5194/acp-26-14843-2026

Articles | Volume 26, issue 20

https://doi.org/10.5194/acp-26-14843-2026

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

https://doi.org/10.5194/acp-26-14843-2026

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

Articles | Volume 26, issue 20

Research article

|

22 Oct 2026

Research article |

| 22 Oct 2026

Western Arctic wintertime mixed-phase clouds: Observed modulation by sea ice conditions, long-term variabilities and trends

Pablo Saavedra Garfias and Heike Kalesse-Los

Supplement

https://doi.org/10.5194/acp-26-14843-2026-supplement

Data sets

Wintertime Arctic cloud properties coupled to sea ice at the ARM NSA site from 2011 to 2025 P. Saavedra Garfias https://doi.org/10.5281/zenodo.22905666

Model code and software

Source code for processing and long-term trend analysis of the interaction between mixed-phase clouds and sea ice at the ARM NSA site P. Saavedra Garfias https://doi.org/10.5281/zenodo.22871849

CloudnetTools.jl: Julia toolbox to apply Cloudnet to data from the Atmospheric Radiation Measurement (ARM) facility P. Saavedra Garfias https://doi.org/10.5281/zenodo.7245670

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Short summary

Arctic low level mixed-phase clouds were analysed from 14 years of wintertime observations from the North Slope of Alaska. We found that Arctic cloud physical properties are in correlation with changes in upwind sea ice. The cloud liquid and ice water content increases as sea ice decreases, although not at the same magnitude. Moreover, we uncovered that cloud properties have oscillation properties along the years that resemble climate indicators like El Niño Southern Oscillation among others.