Abstract: In a preceding paper a simple dynamical model for the maintenance of upper-tropospheric waves was proposed: the upper-level Eady normal modes. In this paper it is shown that these modes have counterparts in basic states ...

Abstract: Semi-Lagrangian semi-implicit techniques are now well established and used by an increasing number of meteorological centers. However, it is demonstrated by both analysis and numerical integration that there is a serious ...

Abstract: Upper-tropospheric waves are important in midlatitude synoptic-scale dynamics. Their life duration is typically longer than time scales for disruption by the ambient shaer and they often induce surface cyclogenesis. In ...