Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 19, issue 9
Articles | Volume 19, issue 9
https://doi.org/10.5194/gmd-19-3801-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-19-3801-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 9
Development and technical paper
 | 
11 May 2026
Development and technical paper |  | 11 May 2026

Advancing the BRAMS wildfire–atmosphere modelling system: application to an extreme wildfire event

Isilda Cunha Menezes, Luiz Flávio Rodrigues, Karla M. Longo, Mateus Ferreira e Freitas, Saulo R. Freitas, Rodrigo Braz, Valter Ferreira de Oliveira, Sílvia Coelho, and Ana Isabel Miranda

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Short summary
The Brazilian Regional Atmospheric Modeling System (BRAMS) was enhanced with crown fire spread in the surface fire spread (SFIRE) module and dynamic smoke emissions, enabling coupled fire–atmosphere–radiation simulations. Applied to the 2017 Sertã wildfire, the results show qualitative agreement with MERRA-2 aerosol optical depth (AOD), capturing the main plume structure, timing, and smoke-driven radiative effects, as well as interactions affecting atmospheric instability and inversion layers.
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