Intensity peaks in low latitude VLF emissions observed at Ariel satellites

Details Intensity peaks in low latitude VLF emissions observed at Ariel satellites Intensity peaks in low latitude VLF emissions observed at Ariel satellites

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992p%26ss...40.1425s&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 40, no. 10, p. 1425-1430.

Physics

Geomagnetic Latitude, Satellite Observation, Very Low Frequencies, Whistlers, Ariel Satellites, Cerenkov Radiation, Electron Precipitation

Scientific paper

A detailed analysis of low latitude VLF emissions observed aboard Ariel 3/4 satellites shows that some N-zone 3.2 kHz emissions are more intense than S-zone emissions. It is shown that these emissions are of an impulsive nature having their origin in lightning discharges in the S-zone. These emissions propagate to equatorial altitudes in whistler mode, are amplified there by cyclotron instability and then, propagating in whistler mode, arrive at Ariel satellites in the N-zone. Observations of VLF events and particle precipitation at lower L-shells support our conclusion.

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