Articles | Volume 26, issue 9
https://doi.org/10.5194/acp-26-5983-2026
https://doi.org/10.5194/acp-26-5983-2026
Research article
 | 
05 May 2026
Research article |  | 05 May 2026

Impact of present aircraft NOx and aerosol emissions on atmospheric composition and climate: results from a model intercomparison

Yann Cohen, Didier Hauglustaine, Zosia Staniaszek, Marianne Tronstad Lund, Irene Dedoussi, Sigrun Matthes, Flávio Quadros, Mattia Righi, Agnieszka Skowron, and Robin Thor

Data sets

Perturbation simulations for aircraft NOx and aerosol emissions in present day and future: multi-model data from the ACACIA EU project Yann Cohen et al. https://doi.org/10.5281/zenodo.16949722

Data underlying the publication "Global air quality and human health impacts of growing aircraft emissions" Flávio D. A. Quadros et al. https://doi.org/10.4121/79395594-9c12-451a-9f59-081db67605e0.v1

Model simulation data used in "The global impact of the transport sectors on the atmospheric aerosol and the resulting climate effects under the Shared Socioeconomic Pathways (SSPs)" (Righi et al., Earth Syst. Dynam., 2023) Mattia Righi et al. https://doi.org/10.5281/zenodo.8134336

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Short summary
Non-CO2 effects from aviation on climate show large uncertainties. Among them, this study investigates the present-day impact of nitrogen oxides (through ozone and methane) and aerosols produced by aviation on atmospheric composition and therefore on climate, using a global-model intercomparison. Our results show a good consistency between the models for gaseous chemistry, but they also highlight the need for more accurate comparisons and further model development for aerosol parameterization.
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