ST2.7Wave-particle interactions in the Earth's magnetosphere and radiation belt dynamics
|Convener: Frantisek Nemec | Co-Conveners: Fabien Darrouzet , Allison Jaynes , Maria Usanova , Richard Boynton , Andrew Dimmock , Elena Kronberg|
Wave-particle interactions represent a unique mechanism of an energy transfer in the nearly collisionless plasma environment of the Earth's magnetosphere, affecting ultimately distribution functions of energetic particles trapped in the Van Allen radiation belts. Their evaluation, along with the quantification of the resulting particle acceleration, transport, and loss, is thus crucial for understanding the dynamics of the radiation belts. Considering that these processes are mainly driven by the solar wind, the ability to accurately forecast the radiation belts is further dependent on understanding their coupling with external regions (e.g. solar wind, foreshock, magnetosheath), and the processes that dictate their global dynamics. The aim of this session is the dynamics of energetic particle populations in the Earth's magnetosphere, as well as generation mechanisms and properties of involved electromagnetic emissions (EMIC, chorus, hiss, fast magnetosonic waves, etc.) in various frequency ranges (ULF, ELF, VLF). Theoretical and model contributions, as well as observational studies using data from recent satellite missions (ERG-Arase, Cluster, MMS, THEMIS, Van Allen Probes, etc.) and ground-based instruments are encouraged.