Modeling cloud microphysics using a two-moments hybrid bulk/bin scheme for use in Titan's climate models: Application to the annual and diurnal cycles

The various forcing produce a time-variable cloud layer in relation with the temperature cycle. We compare the column opacities and the temperature for the two schemes, for each cycles. We also compare more detailed quantities as the opacity distribution of the cloud events at different periods of these cycles. Results show that differences between the two approaches have a small impact on the temperature (less than 1 K) and range between 1% and 10% for haze and clouds opacities. Both models behave in similar way when forced by an annual and by a diurnal cycles. We note that in our model, the diurnal cycle produces a remarkable asymmetry between the morning and the evening, that can be associated to morning/evening limb asymmetry observed with ground-based telescopes.