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A STUDY OF THE IONOSPHERIC DYNAMO BY USING EMPIRICAL MODEL PARAMETERS

Shen Chang-shou1, Li Qing1, Jiao Wei-xin1, Zi Min-yun2   

  1. 1. Department of Geophysics. Peking University, Beijing 100871;
    2. The Institute of Art of China, Beijing
  • Received:1990-07-22 Revised:1991-07-06 Online:1992-04-24 Published:1992-04-24

Abstract: The empirical parameters of MSIS-86 and IRI-86 are used to deduce the three dimensional distribution of ionospheric conductivity and thermospheric wind system.Furthermore,the distribution and variation of the electrostatic potential and layer ionospheric current density at the Northern Hemisphere are calculated by the dynamo theory.The work combines the theoritical research of the ionosphere and thermosphere and the parameters of empirical model based on vast amount of data.The thermospheric wind system,height-integrated conductivity,electrostatic potential and ionospheric current density are compared with observed data and the results deduced from model calculations.There is a good agreement between them.The general significance of the method engaged is discussed too.

Key words: Gravity wave, Compact difference scheme, Unequal step grid