Abstract: It has recently been suggested that exchange of sensible heat with the underlying surface is necessary for the baroclinic instability of waves on the scale of observed blocking ridge activity over the North Pacific. ...

Abstract: A nonlinear, primitive equations model with five levels in a σ coordinate is applied to study the effects of idealized topography on the summer circulation pattern over tropical South America. The model circulation is ...

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Abstract: A linear model of the steady response of a stratified fluid to isolated heat sources on a sphere is developed. The model is used to examine the response to diabatic heating associated with summer monsoon precipitation in ...

Abstract: A quasi-geostrophic ?-plane channel model is used to study the response of the stratosphere to planetary waves forced at the ground. The forcing consists of a standing field of eddy vertical velocity whose amplitude ...

Abstract: This paper describes the zonally propagating wave modes of a homogeneous fluid on an equatorial beta-plane with linear bottom topography. The fluid is bounded above by a free surface and bounded below by a depth profile ...

Abstract: Free oscillations of small amplitude and low frequency in an isothermal atmosphere at rest have the vertical structure of an edge wave, energy density decaying exponentially away from the ground. In this paper we treat ...

Abstract: The problem of the baroclinic instability of an atmospheric zonal flow which is a continuous function of altitude above a horizontal boundary on a, ?-plane exhibits two classes of unstable normal mode solutions. One of ...

Abstract: Past and present support of research in the atmospheric sciences by the National Science Foundation, current trends in the support programs, and background on the administration of research proposals are discussed in this report.

Abstract: A general circulation model has been run in the perpetual January mode to produce several long-term simulations, each distinguished by a different imposed equatorial Pacific sea surface temperature. From each of them ...