Atmospheric Measurement Techniques
Atmospheric Measurement Techniques
AMT
Articles | Volume 19, issue 5
Articles | Volume 19, issue 5
https://doi.org/10.5194/amt-19-1675-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/amt-19-1675-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 5
Research article
 | 
06 Mar 2026
Research article |  | 06 Mar 2026

Aerosol Composition and Extinction of the 2022 Hunga Plume Using CALIOP

Clair Duchamp, Bernard Legras, Aurélien Podglajen, Pasquale Sellitto, Adam E. Bourassa, Alexei Rozanov, Ghassan Taha, and Daniel J. Zawada

Data sets

OMPS-NPP L2 LP Aerosol Extinction Vertical Profile swath daily 3slit V2 G. Taha https://doi.org/10.5067/CX2B9NW6FI27

CALIPSO Lidar Level 1B profile data, V4-51 NASA/LARC/SD/ASDC https://doi.org/10.5067/CALIOP/CALIPSO/CAL_LID_L1-Standard-V4-51

SAGE III/ISS L2 Monthly Solar Event Species Profiles (NetCDF) V053 NASA/LARC/SD/ASDC https://doi.org/10.5067/ISS/SAGEIII/SOLAR_NetCDF4_L2-V5.3

OMPS-NPP L2 LP Aerosol Extinction Vertical Profile swath daily 3slit V2.5 G. Taha https://doi.org/10.5067/6X1B487WO4W1

OMPS-NPP L2 LP University of Saskatchewan (1.3.0) D. Zawada et al. https://doi.org/10.5281/zenodo.17148427

Model code and software

miepython: Pure python calculation of Mie scattering (2.5.4) S. Prahl https://doi.org/10.5281/zenodo.11135148

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Short summary
We analyzed the stratospheric aerosol plume from the 2022 Hunga eruption using satellite lidar data. We implemented a method to retrieve some aerosol properties, as standard products failed in this case. We found very high optical depth values in the days following the eruption, which decreased rapidly but remained elevated for months. Our results are broadly validated, though some satellite products underestimate the values due, in part, to the unusual aerosol size distribution in the plume.
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