Articles | Volume 20, issue 16
Atmos. Chem. Phys., 20, 10015–10027, 2020
https://doi.org/10.5194/acp-20-10015-2020
Atmos. Chem. Phys., 20, 10015–10027, 2020
https://doi.org/10.5194/acp-20-10015-2020

Research article 27 Aug 2020

Research article | 27 Aug 2020

A semi-empirical potential energy surface and line list for H216O extending into the near-ultraviolet

Eamon K. Conway et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Eamon Conway on behalf of the Authors (14 Jul 2020)  Author's response    Manuscript
ED: Publish subject to technical corrections (22 Jul 2020) by Sergey A. Nizkorodov
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Short summary
Water vapour has a complex spectrum and absorbs from the microwave to the near-UV where it dissociates. There is limited knowledge of the absorption features in the near-UV, and there is a large disagreement for the available models and experiments. We created a new ab initio model that is in good agreement with observation at 363 nm. At lower wavelengths, our calculations suggest that the latest experiments overestimate absorption. This has implications for trace gas retrievals in the near-UV.
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