Applied Experiments of the Prediction of Typhoon Tracks by Using Cloud Motion Wind Vectors

The cloud motion wind vectors provided by the National Satellite Meteorological Center are applied to the numerical weather prediction system of typhoon tracks at the National Meteorological Center.Numerical experiments of the prediction of typhoon tracks are done for initially inquiring into the method of using cloud motion wind vectors in improving typhoon model. The experiments consist of two forecast trials. The first one is to take cloud motion wind vectors as observation data to do optimum interpolation objective analysis. Based on the first test, the second one is to put cloud motion wind into the axisymmetric vortex wind field to form asymmetric wind field of bogus vortex.The result indicates that the first one can distinctly reduce the prediction errors of typhoon tracks and the second one can further improve the prediction precision.

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