Toward understanding the effects of mesoscale organization on large-scale wave, deep convection interaction

This study uses the System for Atmospheric Modeling (SAM) cloud system-resolving model (CSRM) to understand the role mesoscale organization plays in large-scale wave, deep convection interaction. The CSRM is coupled to 2D linear wave dynamics to simulate wave-convection interactions. CSRM domain averaged convective tendencies are used to evolve the large-scale 2D wave equation, which is then used as a forcing on the CSRM. Within this setup, we explore how changes in the domain size, dimensionality, and wind shear permit or forbid the mesoscale, therefore isolating the role of mesocale organization on deep convection, large-scale wave interaction. Initial results for a limited domain area show that convection is more responsive in elongated 3D domains vs. isotropic 3D domains. We seek to show results for larger domain areas and for fully 2D setups.