Active thermokarst regions contain rich  sources of ice-nucleating particles

Barry, Kevin R.; Hill, Thomas C. J.; Nieto-Caballero, Marina; Douglas, Thomas A.; Kreidenweis, Sonia M.; DeMott, Paul J.; Creamean, Jessie M.

doi:https://doi.org/10.5194/acp-23-15783-2023

Articles | Volume 23, issue 24

https://doi.org/10.5194/acp-23-15783-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-15783-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 24

Research article

|

22 Dec 2023

Research article |

| 22 Dec 2023

Active thermokarst regions contain rich sources of ice-nucleating particles

Kevin R. Barry, Thomas C. J. Hill, Marina Nieto-Caballero, Thomas A. Douglas, Sonia M. Kreidenweis, Paul J. DeMott, and Jessie M. Creamean

Supplement

https://doi.org/10.5194/acp-23-15783-2023-supplement

Data sets

ARCtic Study of Permafrost Ice Nucleation (ARCSPIN) Cumulative Ice Nucleating Particles (INP) Data K. Barry https://doi.org/10.18739/A2833N072

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Short summary

Ice-nucleating particles (INPs) are important for the climate due to their influence on cloud properties. To understand potential land-based sources of them in the Arctic, we carried out a survey near the northernmost point of Alaska, a landscape connected to the permafrost (thermokarst). Permafrost contained high concentrations of INPs, with the largest values near the coast. The thermokarst lakes were found to emit INPs, and the water contained elevated concentrations.