Dynamical perturbation of the stratosphere by a pyrocumulonimbus injection of carbonaceous aerosols

Doglioni, Giorgio; Aquila, Valentina; Das, Sampa; Colarco, Peter R.; Zardi, Dino

doi:https://doi.org/10.5194/acp-22-11049-2022

Articles | Volume 22, issue 17

https://doi.org/10.5194/acp-22-11049-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-11049-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 17

Research article

|

31 Aug 2022

Research article |

| 31 Aug 2022

Dynamical perturbation of the stratosphere by a pyrocumulonimbus injection of carbonaceous aerosols

Giorgio Doglioni, Valentina Aquila, Sampa Das, Peter R. Colarco, and Dino Zardi

Data sets

GEOS CCM free-running simulation data of the Pacific-Northwest pyrocumulonimbus Event-like aerosol injection, SWIRL selection Giorgio Doglioni https://doi.org/10.5281/zenodo.6366106

Short summary

We use a global chemistry climate model to analyze the perturbations to the stratospheric dynamics caused by an injection of carbonaceous aerosol comparable to the one caused by a series of pyrocumulonimbi that formed over British Columbia, Canada on 13 August 2017. The injection of light-absorbing aerosol in an otherwise clean lower stratosphere causes the formation of long-lasting stratospheric anticyclones at the synoptic scale.