| NUMERICA STUDY OF THUNDERSTORM ELECTRIFICATION WITH A THREE-DIMENSIONAL DYNAMICS AND ELECTRIFICATION COUPLED MODEL—MODEL DESCRIPTION AND PARAMETERIZATION OF ELECTRICAL PROCESSES |
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| 引用本文： | 孙安平,言穆弘,张义军,张鸿发,黄美元.NUMERICA STUDY OF THUNDERSTORM ELECTRIFICATION WITH A THREE-DIMENSIONAL DYNAMICS AND ELECTRIFICATION COUPLED MODEL—MODEL DESCRIPTION AND PARAMETERIZATION OF ELECTRICAL PROCESSES[J].Acta Meteorologica Sinica,2002(1). |
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| 作者姓名： | 孙安平 言穆弘 张义军 张鸿发 黄美元 |
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| 作者单位： | Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences，Lanzhou 730000，Cold and Arid Regions Environmental and Engineering Research Institute，Chinese Academy of Sciences，Lanzhou 730000，Cold and Arid Regions Environmental and Engineering Research Institute，Chinese Academy of Sciences，Lanzhou 730000，Cold and Arid Regions Environmental and Engineering Research Institute，Chinese Academy of Sciences，Lanzhou 730000，Institute of Atmospheric Physics.Chinese Academy of Sciences，Beijing 100029 |
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| 基金项目： | Project supported by the National Natural Science Foundation of China(Grant No.49975002)，Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences(Grant No.210037)，LSSR of Peking University. |
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| 摘 要： | A new three-dimensional dynamics and electrification coupled model has been developed forinvestigating the characteristics of microphysics,dynamics and electrification insidethunderstorms.This model is basically modified from a three-dimensional,time-dependent,anddual-parameter cloud model originally established in IAP(Institute of Atmospheric Physics)and atwo-dimensional axisymmetric cloud dynamics and electrification coupled model.Primarymodifications to the model include not only the coupling of electrification with dynamical andmicrophysical processes,but also the lightning discharge process and screening layer effect at thecloud top as well.Apart from including a full treatment of small ions with attachment to sixclasses of hydrometeors,the inductive and non-inductive charging mechanisms are more specificallyconsidered.A case simulation of July 19.1981 CCOPE is performed aiming to validate thepotential capability of the model.Comparison between model results and observations reveals thatthe model has the capacity to reproduce many of the observed characteristics of thunderstorms indynamical,microphysical,and electrical aspects.
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