Understanding dynamics of large-scale atmospheric vortices with moist-convective shallow water model

[摘要] Atmospheric jets and vortices which, together with inertia-gravity waves, constitute the principal dynamical entities of large-scale atmospheric motions, are well described in the framework of one- or multi-layer rotating shallow water models, which are obtained by vertically averaging of full "primitive" equations. There is a simple and physically consistent way to include moist convection in these models by adding a relaxational parameterization of precipitation and coupling precipitation with convective fluxes with the help of moist enthalpy conservation. We recall the construction of moist-convective rotating shallow water model (mcRSW) model and give an example of application to upper-layer atmospheric vortices.

[发布机构] LMD-ENS, 24 Rue Lhomond, Paris; 75005, France^1

[效力级别] 数学

[关键词] Atmospheric jets;Atmospheric motions;Atmospheric vortices;Convective flux;Inertia gravity waves;Moist convection;Shallow water model;Upper layer