电离层电子密度剖面EoFs解析研究

EoFs analytic representation of the ionospheric electron density profile

离子密度随高度的解析展开是电离层物理模式参数研究中的一个关键技术。用经验正交函数分析了 (EoFs)电离层电子密度剖面解析中的应用 ,研究并给出了利用EoFs进行电离层电子密度剖面解析展开和剖面重构的算法。以海口站 (2 0°N ,110 .3°E)为例 ,给出了电子密度剖面解析与重构算法的应用实例 。

The altitude semi-analytic expansion of ion densities is a key problem in parameterization of physical ionospheric models. The application of empirical orthonormal functions (EoFs) into semi-analytic representation of the ionospheric electron density profile (EDP) was investigated, an algorithm for semi-analytic representation of the altitude profile of ion densities and the reconstructing the entire profile of ionosphere by a linear combinations EoFs was derived. With the model calculating EDP sets in Haikou (20°N, 110.3°E), a application instance of the algorithm for EoFs was described, and the analytic results show that the reconstructing data of the ionospheric entire profile have an excellent agreement with the model calculating results.