10.26165/JUELICH-DATA/FBZRVO Grooß, Jens-Uwe0000-0002-9485-866X(Forschungszentrum Jülich) Jülich DATA 2022 This data repository provides access to the model data of the study by Grooß et al. (2018) and Ziereis et al. (2022). Grooß et al. investigate the discrepancy between HCl observations in the early Antarctic winter stratosphere and simulations by 3 different models. Ziereis et al use the simulations of the model CLaMS for the investigation of Redistribution of total reactive nitrogen in the lowermost Arctic stratosphere in comparison with aircraft observations. Grooß, Jens-Uwe(Forschungszentrum Jülich)