Multipoint measurements to understand the drivers and structure of EMIC waves in the inner magnetosphere

Lauren W Blum

Presentation information

[E] Oral

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM12] Dynamics of the Inner Magnetospheric System

Sat. Jun 5, 2021 10:45 AM - 12:10 PM Ch.05 (Zoom Room 05)

convener:Kunihiro Keika(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo), Yoshizumi Miyoshi(Institute for Space-Earth Environmental Research, Nagoya University), W Lauren Blum(University of Colorado Boulder), Yuri Shprits(Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences), Chairperson:Kazuhiro Yamamoto(Graduate School of Science, The University of Tokyo)

11:05 AM - 11:20 AM

[PEM12-07] Multipoint measurements to understand the drivers and structure of EMIC waves in the inner magnetosphere

*Lauren W Blum¹ (1.University of Colorado Boulder)

Keywords:EMIC waves, inner magnetosphere, radiation belt

Wave-particle interactions provide a primary source of scattering and energization of energetic electrons in the Earth’s radiation belts. Electromagnetic ion cyclotron (EMIC) waves are one intense wave mode observed in the inner magnetosphere that have been shown to contribute to scattering and loss of both energetic electrons and ions. Using multi-point measurements from the Heliospheric Systems Observatory, including NASA’s Van Allen Probes, we examine the properties and source regions of EMIC waves in the inner magnetosphere, exploring the formation and evolution of plasma structures as they relate to observed wave growth. We also investigate the effects of this wave structure on energetic electrons in the outer radiation belt. These studies aid in the understanding of outer radiation belt dynamics and the relationship between electromagnetic waves, global magnetospheric conditions, and solar wind drivers.