OpenIFS/AC is an extended version of the ECMWF OpenIFS model that allows the additional simulation of atmospheric composition (atmospheric chemistry and aerosol processes).
The standard OpenIFS model does not include treatment of chemical and aerosol processes. Adding this functionality within OpenIFS/AC opens up new scientific applications of the model, e.g. to study the impact of atmospheric composition on NWP or interactions between atmospheric composition and the climate system.
Published Paper on OpenIFS/AC
OpenIFS/AC: atmospheric chemistry and aerosol in OpenIFS 43r3v2
V. Huijnen, P. Le Sager, M.O. Köhler, G. Carver, S. Rémy, J. Flemming, S. Chabrillat, Q. Errera, T. van Noije
Geoscientific Model Development http://dx.doi.org/