Pc 1 pulsation source regions and their relationship to the plasma pause

Details Pc 1 pulsation source regions and their relationship to the plasma pause Pc 1 pulsation source regions and their relationship to the plasma pause

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.217..609f&link_type=abstract

In ESA Achievements of the Intern. Magnetospheric Study (IMS) p 609-613 (SEE N85-24544 14-46)

Physics

Geomagnetic Pulsations, Ion Cyclotron Radiation, Plasmaguides, Plasmapause, Ionospheric Drift, Ionospheric Propagation, Magnetic Equator, Time Lag

Scientific paper

Ionospheric waveguide propagation and source location techniques were used on data from a low latitude network of 5 stations (L = 1.8 to 2.8) and 1 at higher latitude (L = 5.4) to determine the exit region of Pc1 wave energy from the magnetosphere into the ionosphere. Interstation propagation time delays and polarization techniques determined the source location of individual Pc1 emissions to be in the L = 2.9 to 4.7 region, which is near or inside plasmapause positions determined statistically or directly from ISEE data. Elliptical Pc1 wavefronts in the waveguide were modeled using the full correlation ionospheric drift analysis technique to estimate the wavefront parameters. This wavefront geometry also explains the pattern of group velocities observed.

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