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NUMERICAL PREDICTION OF HURRICANE MOVEMENT WITH THE EQUIVALENT-BAROTROPIC MODEL

Gene E. BirchfieldThe University of Chicago

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Abstract

Equivalent-barotropic-model predictions of hurricane trajectories made with a 150-km grid mesh are presented. By a series of comparative tests, the results suggest that more accurate forecasts were obtained using density-weighted mean initial data than with 500-mb data. The importance of horizontal mesh size on the accuracy of the calculations is also shown.

Abstract

Equivalent-barotropic-model predictions of hurricane trajectories made with a 150-km grid mesh are presented. By a series of comparative tests, the results suggest that more accurate forecasts were obtained using density-weighted mean initial data than with 500-mb data. The importance of horizontal mesh size on the accuracy of the calculations is also shown.

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