Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 25, issue 4
Articles | Volume 25, issue 4
https://doi.org/10.5194/acp-25-2047-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-25-2047-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 25, issue 4
Research article
 | 
17 Feb 2025
Research article |  | 17 Feb 2025

Impact of SO2 injection profiles on simulated volcanic forcing for the 2009 Sarychev eruptions – investigating the importance of using high-vertical-resolution methods when compiling SO2 data

Emma Axebrink, Moa K. Sporre, and Johan Friberg

Supplement

https://doi.org/10.5194/acp-25-2047-2025-supplement

Data sets

Data for: Impact of SO$_2$ injection profiles on simulated volcanic forcing for the Sarychev 2009 eruptions -- investigating the importance of using high vertical resolution methods when compiling SO$_2$ data Emma Axebrink et al. https://doi.org/10.5281/zenodo.11192344

AL\_LID\_L1-Standard-V4-51 CALIOP data are produced by NASA Langley Research Centre https://doi.org/10.5067/CALIOP/CALIPSO/CAL_LID_L1-Standard-V4-51

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Short summary
We investigate the importance of using high-vertical-resolution (HR) SO2 data when simulating volcanic eruptions' impact on the stratospheric aerosol load and climate, using WACCM, and compare simulations with aerosol observations from CALIOP. Simulations with HR SO2 data match the observations well, whereas simulations with the model's default low-resolution (LR) data underestimate the aerosol load by ~ 50 %. The resulting climate cooling is twice as high for the HR than the LR SO2 data.
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