Dayside pulsation events near the plasmapause

Details Dayside pulsation events near the plasmapause Dayside pulsation events near the plasmapause

Feb 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986p%26ss...34..155l&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 34, Feb. 1986, p. 155-181.

Computer Science

22

Geomagnetic Micropulsations, Magnetohydrodynamic Waves, Plasma Oscillations, Plasmapause, Daytime, Electric Fields, Kelvin-Helmholtz Instability, Power Spectra, Standing Waves

Scientific paper

Magnetic field observations of four dayside pulsation events detected near the equatorial plasmapause region on August 23, 24, September 30, and October 10, 1982 are examined. The wave characteristics and the magnetic components of the pulsation events obtained from DE-1 satellite data and ground data from Siple, Antarctica are described and compared. The pulsations displayed similar complex wave structures; long period transverse waves greater than 100 s are the fundamental mode oscillations of magnetic shells and short period waves of 20-40 s are superimposed on them. It is observed that wave bursts are present in all frequency ranges. The relationship between eigenperiod and the magnetic shell is studied.

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