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

5th International Conference on Mathematical Modeling in Physical Sciences

物理学;数学

Rostami, M.^1 ; Zeitlin, V.^1

LMD-ENS, 24 Rue Lhomond, Paris

75005, France^1

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

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/738/1/012055/pdf
DOI  :  10.1088/1742-6596/738/1/012055

来源: IOP

【 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.