A Study of the F2 Layer Stratification on Ionograms Using a Simple Model of TIDs

摘要

abstract_textpTo study the effect of gravity waves/traveling ionospheric disturbances (TIDs) on ionograms with the F2 layer stratification, we reconstructed ionograms using a simple of TIDs model through a ray tracing method. Results show that two typical types of the F2 layer stratification induced by gravity waves/TIDs could be synthesized on ionograms by the simple model of TIDs in this study. Furthermore, we found that vertical and horizontal gradients caused by TIDs could cause different features on ionograms. Results suggested that the vertical gradient induced by gravity waves/TIDs could cause the F2 stratification. The horizontal gradient caused by gravity waves/TIDs might play a significant role in forming spread F on ionograms. Moreover, we found that the smaller wavelength and larger periodical time of TIDs could make it easier to form the F2 layer stratification on ionograms through modeling studies./p/abstract_text