Articles | Volume 23, issue 8
https://doi.org/10.5194/acp-23-4849-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-23-4849-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Atmospheric distribution of HCN from satellite observations and 3-D model simulations
School of Physics and Astronomy, University of Leicester, Leicester, UK
National Centre for Earth Observation, University of Leicester, Leicester, UK
Jeremy J. Harrison
School of Physics and Astronomy, University of Leicester, Leicester, UK
National Centre for Earth Observation, University of Leicester, Leicester, UK
Martyn P. Chipperfield
School of Earth and Environment, University of Leeds, Leeds, UK
National Centre for Earth Observation, University of Leeds, Leeds, UK
David P. Moore
School of Physics and Astronomy, University of Leicester, Leicester, UK
National Centre for Earth Observation, University of Leicester, Leicester, UK
Richard J. Pope
School of Earth and Environment, University of Leeds, Leeds, UK
National Centre for Earth Observation, University of Leeds, Leeds, UK
Christopher Wilson
School of Earth and Environment, University of Leeds, Leeds, UK
National Centre for Earth Observation, University of Leeds, Leeds, UK
Emmanuel Mahieu
Institut d'Astrophysique et de Géophysique, Université de Liège, Liège, Belgium
Justus Notholt
Environmental Physics IUP, University of Bremen, Bremen 28334, Germany
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Cited
10 citations as recorded by crossref.
- Chemical, ecotoxicological characteristics, environmental fate, and treatment methods applied to cyanide-containing wastewater K. Vaca-Escobar et al. https://doi.org/10.1038/s41545-024-00392-9
- Ab initio characterization of C2H4N2 isomers: Structures, electronic energies, spectroscopic parameters, and formation pathways O. Godwin et al. https://doi.org/10.1063/5.0294525
- Hydrogen cyanide acts as a regulator of reactive oxygen species metabolism M. Piekarniak et al. https://doi.org/10.1007/s00425-025-04848-1
- Particulate Amine Salts as Dynamic Hubs for Atmospheric Nitrogen Exchange W. Zhang et al. https://doi.org/10.1021/jacs.6c10698
- Biological, Equilibrium and Photochemical Signatures of C, N and S Isotopes in the Early Earth and Exoplanet Atmospheres J. Lyons https://doi.org/10.3390/life15030398
- Recent advances in [11C]HCN radiochemistry and applications to (pre)clinical PET imaging C. McCarthy & P. Scott https://doi.org/10.1016/j.nucmedbio.2026.109682
- Atmospheric Evolution of Brown Carbon from Wildfires in North America J. Chen et al. https://doi.org/10.1021/acs.est.5c09020
- Trends in atmospheric composition between 2004–2023 using version 5 ACE-FTS data M. Schmidt et al. https://doi.org/10.1016/j.jqsrt.2024.109088
- Prompt and delayed dissociation dynamics of dicationic HCN induced by electron impact X. Guo et al. https://doi.org/10.1063/5.0278748
- Hydrological drivers of hydrogen cyanide wildfire emissions from Indonesian peat fires during the 2015, 2019, and 2023 El Niño events A. Bruno et al. https://doi.org/10.5194/acp-26-12925-2026
10 citations as recorded by crossref.
- Chemical, ecotoxicological characteristics, environmental fate, and treatment methods applied to cyanide-containing wastewater K. Vaca-Escobar et al. https://doi.org/10.1038/s41545-024-00392-9
- Ab initio characterization of C2H4N2 isomers: Structures, electronic energies, spectroscopic parameters, and formation pathways O. Godwin et al. https://doi.org/10.1063/5.0294525
- Hydrogen cyanide acts as a regulator of reactive oxygen species metabolism M. Piekarniak et al. https://doi.org/10.1007/s00425-025-04848-1
- Particulate Amine Salts as Dynamic Hubs for Atmospheric Nitrogen Exchange W. Zhang et al. https://doi.org/10.1021/jacs.6c10698
- Biological, Equilibrium and Photochemical Signatures of C, N and S Isotopes in the Early Earth and Exoplanet Atmospheres J. Lyons https://doi.org/10.3390/life15030398
- Recent advances in [11C]HCN radiochemistry and applications to (pre)clinical PET imaging C. McCarthy & P. Scott https://doi.org/10.1016/j.nucmedbio.2026.109682
- Atmospheric Evolution of Brown Carbon from Wildfires in North America J. Chen et al. https://doi.org/10.1021/acs.est.5c09020
- Trends in atmospheric composition between 2004–2023 using version 5 ACE-FTS data M. Schmidt et al. https://doi.org/10.1016/j.jqsrt.2024.109088
- Prompt and delayed dissociation dynamics of dicationic HCN induced by electron impact X. Guo et al. https://doi.org/10.1063/5.0278748
- Hydrological drivers of hydrogen cyanide wildfire emissions from Indonesian peat fires during the 2015, 2019, and 2023 El Niño events A. Bruno et al. https://doi.org/10.5194/acp-26-12925-2026
Saved (final revised paper)
Latest update: 30 Oct 2026
Short summary
A 3-D chemical transport model, TOMCAT; satellite data; and ground-based observations have been used to investigate hydrogen cyanide (HCN) variability. We found that the oxidation by O(1D) drives the HCN loss in the middle stratosphere and the currently JPL-recommended OH reaction rate overestimates HCN atmospheric loss. We also evaluated two different ocean uptake schemes. We found them to be unrealistic, and we need to scale these schemes to obtain good agreement with HCN observations.
A 3-D chemical transport model, TOMCAT; satellite data; and ground-based observations have been...
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