A SIMPLE METHOD OF MODELING ELECTRON DENSITY PROFILE USING IONOSPHERIC PARAMETERS

Empirical models of ionospheric parameters f₀F₂ and M（3000）F₂ is obtained respectively by analyzing the observed data in Wuhan ionosphere Observatory. In these models, a linear function to describe the relationship between the two parameters and solar 10.7cm flux index is applied, and Fourier series analysis is used to investigate the diurnal and semidiurnal variations of f₀F₂ over Wuhan, and variations of M（3000）F₂ from the first step to the fourth step. The agreement between the prediction and the observed data is satisfactory. Then the N_mF₂ and h_mF₂ can be modeled from f₀F₂ and M（3000）F₂; And the oxygen scale height H_O can be calculated using the modeled TEC and N_mF₂. Supposing that the height distribution of electron density fits Chapman α function, the N_e profile is given by inputting the modeled N_mF₂, h_mF₂ and H_O. By integrating the profile with height in certain range, is estimated the partial electron content and compared with the observed TEC. The result suggests that the electron content integrated from 100km to 1000km are in agreement with the observed TEC at Wuhan. This method is useful for investigating the electron profile of F₂ layer around the top, which has scarce observed data.