Cluster observations of EMIC triggered emissions in association with Pc1 waves near Earth's plasmapause

Abstract

The Cluster spacecraft were favorably positioned on the nightside near the equatorial plasmapause of Earth at L ∼ 4.3 on 30 March 2002 to observe electromagnetic ion cyclotron (EMIC) rising tone emissions in association with Pc1 waves at 1.5 Hz. The EMIC rising tone emissions were found to be left-hand circularly polarized, dispersive and propagating away from the equator.

Keywords

• EMIC
• triggered emissions
• Cluster spacecraft