Conveners
Simulating Convective Organisation: Part 1
- Adrian Tompkins (ICTP)
Simulating Convective Organisation: Part 2
- Caroline Muller (Laboratoire de Météorologie Dynamique, LMD, Paris)
Since 2016, the AROME-OM model is operational over the Carribean area at a 2.5 km resolution. Availability of these operational forecasts raises several scientific questions : i) to what extent this new generation of models significantly improves the forecast in the Overseas; ii) does this huge ensemble of simulated data represent an opportunity to study the processes that govern the shallow...
Understanding the spatial correlations and interactions between tropical clouds remains a challenge for climate research. Here, we develop and apply an extended pair-correlation method to assess the spatial characteristics of deep convective updrafts in the Tropical Atlantic. We discuss how far we can reproduce our findings with simplified equilibrium statistics of interacting cells and which...
This study uses the global storm-resolving model simulations from ICON at 2.5km to investigate how robust weak temperature gradient (WTG) holds in the tropics and which moist- adiabatic process tropical atmosphere indeed experiences.
The virtual effect of water vapor arises from that the molecular weight of water vapor is much smaller than that of dry air. With the same pressure and...
The Radiative-Convective Equilibrium Model Intercomparison Project (RCEMIP) is an intercomparison of multiple types of numerical models, including atmospheric general circulation models (GCMs), cloud-resolving models (CRMs), global cloud-resolving models (GCRMs), large eddy simulation models (LES), and single column models (SCMs), configured in radiative-convective equilibrium (RCE). In...
We compare climate sensitivities across simulations from the radiative-convective equilibrium model intercomparison project based on the temperature dependence of the top-of atmosphere radiation budget, and find that climate sensitivities are extremely variable. The spread in climate sensitivity is particularly high in large domain simulations because convection is free to aggregate. We find...
Cloud-radiation interactions play an important role in convective self-aggregation in idealised simulations of radiative-convective equilibrium and in real-world organised convection. This work aims to explore the radiative feedbacks of different cloud types to enable a deeper understanding of which cloud types play key roles in aggregation. We use three domain setups of the Met Office’s...
The Simple-Cloud-E3SM-Atmosphere-Model (SCREAM) is currently being developed as the high resolution (~3 km grid spacing) version of the US Department of Energy’s new Energy Exascale Earth System Model (E3SM). A new suite of cloud physics parameterizations has been implemented to accommodate the partially cloud resolving resolution of SCREAM. In particular, turbulence, shallow convection, and...
