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 NOy 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

Data sets

IAGOS time series D. Boulanger, R. Blot, U. Bundke, C. Gerbig, M. Hermann, P. Nédélec, S. Rohs, and H. Ziereis

Model code and software

Interpol-IAGOS software Y. Cohen, V. Thouret, V. Marécal, and B. Josse

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.
Final-revised paper