A NOTE ON GLOBAL FORECASTING WITH THE KURIHARA GRID

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  • 1 National Meteorological Center, Weather Bureau, ESSA, Suitland, Md.
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Abstract

Kurihara and Holloway's approach of applying the box integration method to the Kurihara grid has been followed for a global forecast model. After encountering problems with the original system, it was found that the truncation error associated with both the orientation of grid points around each Pole and the computation scheme must be carefully considered. A slight alteration was made in Kurihara's grid which alleviated the troubles and provided acceptable forecasts.

Abstract

Kurihara and Holloway's approach of applying the box integration method to the Kurihara grid has been followed for a global forecast model. After encountering problems with the original system, it was found that the truncation error associated with both the orientation of grid points around each Pole and the computation scheme must be carefully considered. A slight alteration was made in Kurihara's grid which alleviated the troubles and provided acceptable forecasts.

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