A Simple, Yet Realistic Model for the Formation of Arctic Stratus Clouds–A Case Study

We have developed a one-dimensional radiative-convective model with detailed cloud microphysics, and used it to study the formation of Arctic Stratus clouds (ASC). The model contains detailed radiative and microphysical modules, and it provides a self-consistent treatment of the interaction between radiative and cloud microphysical processes important for cloud formation. The radiative transfer code is coupled to the microphysics module that has been developed to simulate the detailed cloud droplet activation and evaporation processes, using the full droplet size distribution. In addition, the model includes convective adjustment, which implies mixing of droplet spectra.