Abstract: The barotropic instability of basic states with downstream and asymmetric cross-stream variations is investigated using the linearized, non-divergent barotropic vorticity equation in a periodic beta channel. A single ...

Abstract: Wave-CISK with conditional heating is investigated in the equatorial zonal-height plane by analytic and numerical techniques. For two- and three-level models, previous results are extended to give additional evidence that ...

Abstract: A linear model of wave-CISK consisting of the primitive equations formulated on an equatorial beta-plane with a resting basic state, is used to compare the relatively simple cumulus parameterization scheme developed by ...

Abstract: A particular episode of blocking that occurred in the North Atlantic during December 1978 is analyzed from NMC gridpoint data using isentropic analysis. The advantages of this analysis technique are outlined, specifically ...