Propagation of Very Oblique Chorus Waves Near a Plasmaspheric Plume Boundary
Wenyao Gu,
David Hartley,
Xu Liu
et al.
Abstract:In a case study using Van Allen Probe B, we investigate chorus wave observations near the western edge of a plasmaspheric plume characterized by steep density gradients. Initially, wave vectors are oriented anti‐Earthward, but they become very oblique and eastward as the probe approaches the plume boundary. Treating the plume boundary as an azimuthal density gradient, ray tracing can reproduce the observed wave vector directions. Ray tracing shows that the azimuthal density gradient strongly inclines the wave … Show more
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