The global aerosol-climate model ECHAM-HAM, version 2: sensitivity to improvements in process representations
Kai Zhang, D. O’Donnell, J. Kazil, P. Stier, S. Kinne, U. Lohmann, S. Ferrachat, B. Croft, J. Quaas, H. Wan, S. Rast, J. Feichter