Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics
ACP
Articles | Volume 26, issue 18
Articles | Volume 26, issue 18
https://doi.org/10.5194/acp-26-13069-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-13069-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 26, issue 18
Research article
 | 
16 Sep 2026
Research article |  | 16 Sep 2026

Advancing halocarbon radiative efficiency estimates by coupling radiative transfer and quantum chemical calculations: impact of updated spectroscopic parameters and low-frequency contributions

Daniela Alvarado-Jiménez, Nicola Tasinato, Roberto Buizza, and Keith P. Shine

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Short summary
Halocarbon gases (used e.g. in air conditioning) contribute to climate change. Their inclusion in international legislation needs emission metrics that characterise their climate importance; this requires good knowledge of how well they absorb infrared (IR) radiation. Little previous work has quantified absorption at long IR wavelengths. We report new calculations, previously validated against measurements, that improve understanding for 30 gases and allow refined estimates of emission metrics.
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