| NEURAL NETWORK BP MODEL APPROXIMATION AND PREDICTION OF COMPLICATED WEATHER SYSTEMS |
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| 作者姓名： | 张韧 余志豪 蒋全荣 |
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| 作者单位： | Department of Atmospheric Sciences Nanjing University，Nanjing 210093，Department of Atmospheric Sciences，Nanjing University，Nanjing 210093，Department of Atmospheric Sciences，Nanjing University，Nanjing 210093 |
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| 基金项目： | This work is sponsored jointly by the Skeleton Teacher Foundation of Chinese Ministry of Education
the program of Prognostic Techniques for the PLA Air-Force(Grant AFQH—45). |
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| 摘 要： | An artificial neural network BP model and its revised algorithm are used to approximate quitesuccessfully a Lorenz chaotic dynamic system and the mapping relation is established between theindices of Southern Oscillation and equatorial zonal wind and lagged equatorial eastern Pacific seasurface temperature(SST) in the context of NCEP/NCAR data,and thereby a model is prepared.The constructed net model shows fairly high fit precision and feasible prediction accuracy,thusmaking itself of some usefulness to the prognosis of intricate weather systems.
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NEURAL NETWORK BP MODEL APPROXIMATION AND PREDICTION OF COMPLICATED WEATHER SYSTEMS |
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| ZHANG Ren YU Zhihao JIANG Quanrong.NEURAL NETWORK BP MODEL APPROXIMATION AND PREDICTION OF COMPLICATED WEATHER SYSTEMS[J].Acta Meteorologica Sinica,2001(1). |
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| Authors: | ZHANG Ren YU Zhihao JIANG Quanrong |
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| Institution: | ZHANG Ren YU Zhihao JIANG Quanrong Department of Atmospheric Sciences,Nanjing University,Nanjing 210093 |
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| Abstract: | An artificial neural network BP model and its revised algorithm are used to approximate quite successfully a Lorenz chaotic dynamic system and the mapping relation is established between the indices of Southern Oscillation and equatorial zonal wind and lagged equatorial eastern Pacific sea surface temperature(SST) in the context of NCEP/NCAR data,and thereby a model is prepared. The constructed net model shows fairly high fit precision and feasible prediction accuracy,thus making itself of some usefulness to the prognosis of intricate weather systems. |
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| Keywords: | neural network BP model Lorenz system equatorial eastern Pacific SST |
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