The application of zonal spectral analysis to interpretation of medium range numerical prediction product
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Abstract:
In this paper, the disturbance of ECMWF forecast height has been resolved into zonal wave spectrum by method of harmonic analysis. The integrated waves are composed of varied harmonics. The relations between the spectrum and medium range weather for spring over Zhejing Province are analysed. By using stepwise regression the medium range forecast equations are established. The forecasting results indicated that the equations are efficacious.