Global impacts of aviation on air quality  evaluated at high resolution

Eastham, Sebastian D.; Chossière, Guillaume P.; Speth, Raymond L.; Jacob, Daniel J.; Barrett, Steven R. H.

doi:https://doi.org/10.5194/acp-24-2687-2024

Articles | Volume 24, issue 4

https://doi.org/10.5194/acp-24-2687-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-24-2687-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 24, issue 4

Research article

|

29 Feb 2024

Research article |

| 29 Feb 2024

Global impacts of aviation on air quality evaluated at high resolution

Sebastian D. Eastham, Guillaume P. Chossière, Raymond L. Speth, Daniel J. Jacob, and Steven R. H. Barrett

Supplement

https://doi.org/10.5194/acp-24-2687-2024-supplement

Data sets

Gridded Population of the World, Version 4 (GPWv4): Population Count Center for International Earth Science Information Network – CIESIN – Columbia University https://doi.org/10.7927/H4X63JVC

Model code and software

geoschem/geos-chem: GEOS-Chem 12.6.2 The International GEOS-Chem User Community https://doi.org/10.5281/zenodo.3543702

geoschem/GCHP: GCHP 14.2.0 (14.2.0) The International GEOS-Chem User Community https://doi.org/10.5281/zenodo.8411829

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Short summary

Emissions from aircraft are known to cause air quality impacts worldwide, but the scale and mechanisms of this impact are not well understood. This work uses high-resolution computational modeling of the atmosphere to show that air pollution changes from aviation are mostly the result of emissions during cruise (high-altitude) operations, that these impacts are related to how much non-aviation pollution is present, and that prior regional assessments have underestimated these impacts.