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Three‐dimensional ray tracing of VLF waves in a magnetospheric environment containing a plasmaspheric plume
Author(s) -
Chen Lunjin,
Bortnik Jacob,
Thorne Richard M.,
Horne Richard B.,
Jordanova Vania K.
Publication year - 2009
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2009gl040451
Subject(s) - plasmasphere , hiss , chorus , geophysics , physics , magnetosphere , ray tracing (physics) , whistler , plume , van allen probes , van allen radiation belt , geology , meteorology , plasma , electron , optics , art , literature , quantum mechanics
A three dimensional ray tracing of whistler‐mode chorus is performed in a realistic magnetosphere using the HOTRAY code. A variety of important propagation characteristics are revealed associated with azimuthal density gradients and a plasmaspheric plume. Specifically, whistler mode chorus originating from a broad region on the dayside can propagate into the plasmasphere. After entry into the plasmasphere, waves can propagate eastward in MLT and merge to form hiss. This explains how chorus generated on the dayside can contribute to plasmaspheric hiss in the dusk sector. A subset of waves entering the plasmasphere can even propagate globally onto the nightside.