Analysis of ship emission effects on clouds over the southeastern Atlantic using geostationary satellite observations

Benas, Nikos; Meirink, Jan Fokke; Roebeling, Rob; Stengel, Martin

doi:https://doi.org/10.5194/acp-25-6957-2025

Articles | Volume 25, issue 13

https://doi.org/10.5194/acp-25-6957-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-25-6957-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 25, issue 13

Research article

|

08 Jul 2025

Research article |

| 08 Jul 2025

Analysis of ship emission effects on clouds over the southeastern Atlantic using geostationary satellite observations

Nikos Benas, Jan Fokke Meirink, Rob Roebeling, and Martin Stengel

Supplement

https://doi.org/10.5194/acp-25-6957-2025-supplement

Data sets

CLAAS-3: CM SAF CLoud property dAtAset using SEVIRI -- Edition 3 J. F. Meirink et al. https://doi.org/10.5676/EUM_SAF_CM/CLAAS/V003

Model code and software

nikosbenas/Clouds_over_SEA_shipping_corridor: ACP paper code. Nikos Benas https://doi.org/10.5281/zenodo.15222065

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Short summary

This study examines how ship emissions affect clouds over a shipping corridor in the southeastern Atlantic. Using satellite data from 2004 to 2023, we find that ship emissions increase the number of cloud droplets while reducing their size and slightly decrease cloud water content. Effects on seasonal and daily patterns vary based on regional factors. The impact of emissions weakened after stricter regulations were implemented in 2020.