In-plume and out-of-plume analysis of  aerosol–cloud interactions derived from the   2014–2015 Holuhraun volcanic eruption

Peace, Amy H.; Chen, Ying; Jordan, George; Partridge, Daniel G.; Malavelle, Florent; Duncan, Eliza; Haywood, Jim M.

doi:https://doi.org/10.5194/acp-24-9533-2024

Articles | Volume 24, issue 16

https://doi.org/10.5194/acp-24-9533-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-24-9533-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 16

Research article

|

29 Aug 2024

Research article |

| 29 Aug 2024

In-plume and out-of-plume analysis of aerosol–cloud interactions derived from the 2014–2015 Holuhraun volcanic eruption

Amy H. Peace, Ying Chen, George Jordan, Daniel G. Partridge, Florent Malavelle, Eliza Duncan, and Jim M. Haywood

Supplement

https://doi.org/10.5194/acp-24-9533-2024-supplement

Data sets

In-plume and out-of-plume analysis of aerosol-cloud interactions derived from the 2014–15 Holuhraun volcanic eruption A. H. Peace et al. https://doi.org/10.5281/zenodo.12664100

MCD06COSP_D3_MODIS – MODIS (Aqua/Terra) Cloud Properties Level 3 daily, 1x1 degree grid NASA https://doi.org/10.5067/MODIS/MCD06COSP_D3_MODIS.062

MYD06_L2 MYD06_L2 MODIS/Aqua Clouds 5-Min L2 Swath 1km and 5km S. Platnick et al. https://doi.org/10.5067/MODIS/MYD06_L2.061

OMPS/NPP PCA SO2 Total Column 1-Orbit L2 Swath 50x50km V2 C. Li et al. https://doi.org/10.5067/MEASURES/SO2/DATA205

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Short summary

Natural aerosols from volcanic eruptions can help us understand how anthropogenic aerosols modify climate. We use observations and model simulations of the 2014–2015 Holuhraun eruption plume to examine aerosol–cloud interactions in September 2014. We find a shift to clouds with smaller, more numerous cloud droplets in the first 2 weeks of the eruption. In the third week, the background meteorology and previous conditions experienced by air masses modulate the aerosol perturbation to clouds.