Jan Kazil

TL;DR: The second version of the global aerosol-climate model ECHAM-HAM was introduced and evaluated in this article, where a new parameterization for aerosol nucleation and water uptake, an explicit treatment of secondary organic aerosols, modified emission calculations for sea salt and mineral dust, coupling of aerosol microphysics to a two-moment stratiform cloud micro-physics scheme, and alternative wet scavenging parameterizations were introduced.

TL;DR: In this article, a new scheme for neutral and charged nucleation of sulfuric acid and water based on laboratory data was implemented in the aerosol-climate model ECHAM5-HAM and a parametrization of cluster activation based on field measurements.

TL;DR: In this paper, microphysical and meteorological controls on the formation of open and closed cellular structures in the Southeast Pacific were explored using model simulations based on aircraft observations during the VAMOS Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-REx).

TL;DR: The recent EUREC$^4$A campaign as discussed by the authors was a turning point in our ability to study factors influencing clouds in the trades, how they will respond to warming, and their link to other components of the earth system, such as upper ocean processes or the life cycle of particulate matter.

TL;DR: In this article, the authors investigate the formation of sulfate aerosol in the marine troposphere from neutral and charged nucleation of H 2 SO 4 and H 2 O and find that the strongest aerosol production occurs in the upper troposphere over areas with frequent convective activity, in particular in the tropics.