“…In this study, mountain-wave induced PSCs are simulated seamlessly with the ICOsahedral Nonhydrostatic modelling framework (ICON, Zängl et al, 2015) and its extension for Aerosols and Reactive Trace gases (ART, Rieger et al, 2015;Weimer et al, 2017;Schröter et al, 2018). ICON-ART provides the possibility of local grid refinement with two-way interaction so that a coarse global resolution can be complemented by a region with a refined grid (Reinert et al, 2019), such as the Antarctic Peninsula which is one of the hot spots for the generation of southern hemispheric mountain waves (Bacmeister, 1993;Bacmeister et al, 1994;McDonald et al, 2009;Alexander et al, 2011;Hoffmann et al, 2017).…”