Superposed Epoch Analysis of Storm-Time Total Electron Content for the Improvement of Forecast Models

Kurzfassung

The temporal and spatial structures of storm-time ionospheric disturbances are complex and driven by various processes. An understanding of these processes and characterization of their variability are important to validate and improve storm-time ionosphere models, which are in turn crucial for reliable operation of communication and navigation services. For that reason, the present study uses a three-step superposed epoch analysis to investigate the temporal and spatial propagation of total electron content enhancements. The results show a distinctive global structure and seasonal variability, which is in good agreement with the established understanding of storm-time ionospheric disturbances. Thus, the approach provides a promising tool to validate and improve storm-time ionosphere models.