On the Direction of the Eddy Momentum Flux in Baroclinic Instability

摘要: Abstract The direction of the vertically-integrated horizontal eddy flux momentum in linear baroclinically unstable modes is investigated a number cases where basic flow contains horizontal, as well vertical, shear. A general result presented for slowly-growing on with weak Some special are described which standard baroclinic instabilities finite growth rate (for an internal jet, Eady's model, and two-layer model) perturbed by shear, some computations flows large shear also mentioned. rule emerging from these calculations that jet structure broader scale than radius deformation, tends to be into (or upgradient); while jets narrower fluxes tend out (downgradient), even when contribution curvature state potenti...