Recent results on the SAR arcs and ULF/ELF/VLF waves in the inner magnetosphere from the ground-based PWING longitudinal network at subauroral latitudes
Abstract
Since March 2017, the PWING project (study of dynamical variation of Particles and Waves in the INner magnetosphere using Ground-based network observations) has been operating four instruments (all-sky airglow imagers, riometers, ELF/VLF receivers, and induction magnetometers) at eight stations in Canada, Russia, Finland, Alaska, and Iceland at magnetic latitudes of 60 degree to investigate longitudinal distribution of particles and ULF/ELF/VLF waves in the inner magnetosphere at L 4. Three EMCCD auroral cameras with a fast sampling rate of 100 Hz have also been in operation in Canada, Alaska, and Finland. In this presentation, we review three recent results obtained by the observations at the PWING network. They are (1) statistical study of detachment of Stable Auroral Red (SAR) arcs from the auroral oval associated with substorms, (2) longitudinal extent of magnetospheric ELF/VLF waves estimated from the two-month measurements of PWING longitudinal network of ELF/VLF receivers, and (3) characteristic purple auroras and global Pc1/EMIC waves observed at an arrival of Corotating Interaction Region (CIR) on March 21, 2017. These results indicate high capability of the PWING longitudinal network to elucidate dynamical variations of the inner magnetosphere.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFMSM14B..03S
- Keywords:
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- 2730 Magnetosphere: inner;
- MAGNETOSPHERIC PHYSICSDE: 2774 Radiation belts;
- MAGNETOSPHERIC PHYSICSDE: 7845 Particle acceleration;
- SPACE PLASMA PHYSICSDE: 7867 Wave/particle interactions;
- SPACE PLASMA PHYSICS