[S20-1] Earth and planetary space and remote sensing seismology; i.e., seismology without seismometers

[S20-1-05] Modeling Earthquake-Induced Travelling Ionospheric Disturbances

^○Xing Meng, Attila Komjathy, Olga Verkhoglyadova, Anthony Mannucci (Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA)

In this research, we apply the three-dimensional, time-dependent, and physics-based model WP-GITM (Wave Perturbation – Global Ionosphere-Thermosphere Model) to simulate earthquake-ionosphere coupling via acoustic-gravity waves (AGWs). WP-GITM consists of an analytical model that solves for the neutral atmospheric perturbation at 100 km altitude due to AGWs generated from a ground source, as well as a fully physics-based model that provides corresponding ionospheric and thermospheric perturbations. We utilize available seismometer data and explore AGW source representations for two major earthquakes. Our simulated ionospheric total electron content (TEC) disturbances are validated against Global Positioning System ionospheric observations. It is expected that we gain more insights into the earthquake-ionosphere coupling process using our advanced modeling capabilities and observational data.