NUMERICAL PREDICTION OF HURRICANE MOVEMENT WITH THE USE OF A FINE GRID

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  • 1 The University of Chicago
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Abstract

A numerical model is described for integrating the barotropic prediction equations to obtain forecasts of the displacement of a hurricane center. The model employs a fine grid which is centered over the hurricane and covers only the vortex circulation. Forecasts for Connie and Diane (1955) and Betsy (1956) are presented. Reduction of truncation errors by the use of a smaller grid mesh results in improved trajectory forecasts.

Abstract

A numerical model is described for integrating the barotropic prediction equations to obtain forecasts of the displacement of a hurricane center. The model employs a fine grid which is centered over the hurricane and covers only the vortex circulation. Forecasts for Connie and Diane (1955) and Betsy (1956) are presented. Reduction of truncation errors by the use of a smaller grid mesh results in improved trajectory forecasts.

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