Articles | Volume 14, issue 5
Geosci. Model Dev., 14, 2659–2689, 2021
https://doi.org/10.5194/gmd-14-2659-2021

Special issue: Chemistry–Climate Modelling Initiative (CCMI) (ACP/AMT/ESSD/GMD...

Geosci. Model Dev., 14, 2659–2689, 2021
https://doi.org/10.5194/gmd-14-2659-2021

Methods for assessment of models 12 May 2021

Methods for assessment of models | 12 May 2021

Interpol-IAGOS: a new method for assessing long-term chemistry–climate simulations in the UTLS based on IAGOS data, and its application to the MOCAGE CCMI REF-C1SD simulation

Yann Cohen et al.

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Short summary
Assessing long-term chemistry–climate simulations with in situ and frequent observations near the tropopause is possible with the IAGOS commercial aircraft data set. This study presents a method that distributes the IAGOS data (ozone and CO) on a monthly model grid, limiting the impact of resolution for the evaluation of the modelled chemical fields. We applied it to the CCMI REF-C1SD simulation from the MOCAGE CTM and notably highlighted well-reproduced O3 behaviour in the lower stratosphere.