Detecting Geospace Perturbations Caused by Earth

Dear Colleagues,

Atmospheric gravity waves, produced by atmospheric processes, including tropospheric weather-related events and high-altitude forcing in the auroral zone, have long been known to produce traveling ionospheric disturbances (TIDs), observed using radars (e.g., ionossondes). More recently, TIDs produced by atmospheric waves associated with natural hazards (e.g., Tsunamis, earthquakes, volcanoes) have been observed, which has been partly facilitated by the availability of newer technologies, such as GPS-derived total electron content (TEC).  When TIDs are produced, airglow emission variations are often also produced that are tied to the ion chemistry, also providing a way to observe the atmospheric signatures of natural hazard events. Magnetic fluctuations associated with ground currents induced by earthquakes have also been attributed to ionospheric disturbances. The interpretation of these observations has been aided by sophisticated numerical models.

This Special Issue will include papers presenting ionospheric and airglow observations of disturbances related to natural hazards, specialized data analysis methods, modelling/simulation of the generation of waves/disturbances due to natural hazard sources, the propagation of such disturbances, and their interaction with ionospheric processes. Ideally, papers will also attempt to discuss outstanding issues, limitations of either the models, data analysis methods, and/or observations, and ideas for novel future research.

Dr. Georgios Balasis
Dr. Angelo De Santis
Guest Editors

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