| Session Details | |
| Section | ST - Solar & Terrestrial Sciences |
| Session Title | Pulsating Aurora |
| Main Convener | Dr. Keisuke Hosokawa (University of Electro-Communications, Japan) |
| Co-convener(s) | Dr. Wen Li (University of California, Los Angeles, United States) Dr. Yoshizumi Miyoshi (Solar-Terrestrial Environment Laboratory, Nagoya University, Japan) |
| Session Description | Pulsating aurora (PsA) is known as one of the major classes of aurora, which almost always appears during the recovery phase of auroral substorm. Since 60’s, PsA has been extensively studied by using ground-based radio/optical observations combined together with space-based satellite/rocket measurements. Still, however, the underlying processes creating auroral pulsations remain to be understood. In addition, we have not yet clarified what factors are actually controlling the spatial structure of PsA. Because of these, vast numbers of ground-based radio (IS radars, SuperDARN, Riometer, VLF/ELF receivers etc.) and optical (high-resolution EMCCD cameras, THEMIS/GBO etc.) instruments have been employed during the last decade to better observe the dynamic nature of PsA with improved spatial and temporal resolution. Not only that, there are several on-going ground-based and satellite (Cluster, THEMIS, REIMEI, Geotail etc.) collaborations aimed at understanding the electromagnetic coupling between magnetospheric processes (whistler mode chorus and ECH waves) and PsA seen on the ground. Especially, for some years ahead, several inner magnetosphere missions; Van Allen Probes and ERG will contribute to understand what processes cause PsA. This session focuses on observational, theoretical and modelling aspects of PsA, including micro- and macro-scale physics of diffuse aurora, and generation of waves in the magnetosphere. Presentations on planned projects are also welcome. |