Evaluation of modelled climatologies of O3, CO, water vapour and NOy in the upper troposphere–lower stratosphere using regular in situ observations by passenger aircraft

Cohen, Yann; Hauglustaine, Didier; Sauvage, Bastien; Rohs, Susanne; Konjari, Patrick; Bundke, Ulrich; Petzold, Andreas; Thouret, Valérie; Zahn, Andreas; Ziereis, Helmut

doi:https://doi.org/10.5194/acp-23-14973-2023

Articles | Volume 23, issue 23

https://doi.org/10.5194/acp-23-14973-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-23-14973-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 23

Research article

|

06 Dec 2023

Research article |

| 06 Dec 2023

Evaluation of modelled climatologies of O₃, CO, water vapour and NO_y in the upper troposphere–lower stratosphere using regular in situ observations by passenger aircraft

Yann Cohen, Didier Hauglustaine, Bastien Sauvage, Susanne Rohs, Patrick Konjari, Ulrich Bundke, Andreas Petzold, Valérie Thouret, Andreas Zahn, and Helmut Ziereis

Supplement

https://doi.org/10.5194/acp-23-14973-2023-supplement

Data sets

IAGOS time series D. Boulanger, R. Blot, U. Bundke, C. Gerbig, M. Hermann, P. Nédélec, S. Rohs, and H. Ziereis https://doi.org/10.25326/06

Model code and software

Interpol-IAGOS software Y. Cohen, V. Thouret, V. Marécal, and B. Josse https://doi.org/10.25326/81

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Short summary

The upper troposphere–lower stratosphere (UTLS) is a key region regarding the lower atmospheric composition. This study consists of a comprehensive evaluation of an up-to-date chemistry–climate model in this layer, using regular in situ measurements based on passenger aircraft. For this purpose, a specific software (Interpol-IAGOS) has been updated and made publicly available. The model reproduces the carbon monoxide peaks due to biomass burning over the continental tropics particularly well.