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Original scientific paper

The Role of Hydrodynamic Instability in a Weather Prediction

Marta Mann ; Geofizički zavod Prirodoslovno-matematičkog fakulteta Sveučilišta u Zagrebu


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Abstract

The aim of this paper is to answer the question why our weather prediction for Croatia failed on June 22, 1990? lt deals with the application of the meridional wind profile in estimating the direction of movement of a cyclone in a hydrodynamically unstable atmosphere. Nonlinear meridional variation of zonal flow - barotropic wind shear - has been proved to govern the movement of cyclones and to support their amplification in the vicinity of the inflexional parts of the zonal flow meridional profiles.

Keywords

hydrodynamic instability; baroclinic and barotropic instability; meridional profiles of zonal flow; barotropic governing

Hrčak ID:

68447

URI

https://hrcak.srce.hr/68447

Publication date:

11.12.1991.

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