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《Chinese Journal of Geophysics》 1999-01
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TIME-DEPENDENT IONOSPHERE MODEL IN MERIDIAN PLANE AND ITS BOUNDARY CONDITIONS

WANG JING-S0NG;XIAO ZUO 1)(Department ,of Geophysics,Peking University,Beijing 100871,China) 2)(Lab,for Numerical Study on Heliospheric Physics,Chinese Academy of Sciences,Beijing 100080,Chica)  
A Time-Dependent Ionosphere Model in Meridian Plane (TKIMMP)is introducedand the numerical experiments on its boundary conditions are also carried outTDIMMP,with its adjustable grid,can be mot only with the inputs of given thermospheric parameters but also coupled with the Thermospheric Circulation Modelin Meridian Plane (TCMMP).Starting from Chapman 's theory,solar radiation withwavelenght less then l00nm and 4 photochemical reactions are considered in TDIMMP.Densities of o+,NO+,O+2,N2+ and electron as while as ion' s vector velocity canbe deduced.The numerical experiments under 5 different boundary conditions give that the simulations on ionosphere(especially on the meridional structures)by using two-dimensional ionosphere model dependent strongly on the boundary conditions, when asingle point or one-dimensional (altitudinal)_ model doesn’t Under the appropriateboundary conditions after the numerical esperiments,the results of TKIMMP on ionospheric stanis and structures agree with the observations very well. It proves thatTDIMMP is useful for researches on mid-and large scale ionosphere phenomena.
【Fund】: 国家“八五”重大自然科学基金
【CateGory Index】: P352
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