Chem. Phys., 11, 1203–1216. doi:10.5194/acp-11-1203-2011. Luttkus, M. L., Hoffmann, E. H., Poulain, L., Tilgner, A. & Wolke, R. (2021). The effect of land use classification on the gas-phase and particle composition of the troposphere: tree species vs. forest information. J. Geophys. Res.: Atmos., submitted. Meier, J., Tegen, I., Heinold, B. & Wolke, R. (2012). Direct and semi-direct radiative effects [...] regional model. Geophys. Res. Lett., 39, L09802. doi:10.1029/2012GL050994. Mozurkewich, M. (1993). The dissociation constant of ammonium nitrate and its dependence on temperature, relative humidity and particle size. Atmos. Environ., 27 A, 261-270. Ng, N. L., Kwan, A. J., Surratt, J. D., Chan, A. W. H., Chhabra, P. S., Sorooshian, A., et al. (2008). Secondary organic aerosol (SOA) formation from reaction [...] Chem. Phys., 12, 7825–7865. doi.org/10.5194/acp-12-7825-2012 . Sofiev, M., Soares, J., Prank, M., deLeeuw, G., & Kukkonen, J. (2011). A regional to global model of emission and transport of sea salt particles in the atmosphere. J. Geophys. Res.: Atmos., 116. doi.org/10.1029/2010JD014713 . Solazzo, E., Bianconi, R., Vautard, R., Appel, K. W., Moran, M. D., et al. (2012a). Ensemble modelling of surface level