Model calibration using ESEm v1.0.0 -- an open, scalable Earth System Emulator
(2021)
Supplementary material to "Opportunistic Experiments to Constrain Aerosol Effective Radiative Forcing"
(2021)
Contrasting responses of idealised and realistic simulations of shallow cumuli to aerosol perturbations
Geophysical Research Letters Wiley 48:13 (2021) e2021GL094137
Abstract:
Shallow clouds remain greatly significant in improving our understanding of the atmosphere. Using the Met Office Unified Model, we compare highly idealised simulations of shallow cumuli with those using more realistic domains, with open lateral boundaries and varying large-scale forcing. We find that the realistic simulations are more capable of representing the cloud field on large spatial scales, and appear to limit the aerosol perturbations leading to impacts on the thermodynamic conditions. Aerosol perturbations lead to changes in the cloud vertical structure, and thermodynamic evolution of the idealised simulations; a central feature of behavior seen previously in idealised simulations. Modelling approaches with open boundaries and time-varying forcing may allow for improved representation of shallow clouds in the atmosphere, and greater understanding of how they may respond to perturbations.On the contribution of fast and slow responses to precipitation changes caused by aerosol perturbations
Atmospheric Chemistry and Physics European Geosciences Union 21:13 (2021) 10179-10197