On spectra and some properties of Pc1 geomagnetic pulsations of a complex shape

Details On spectra and some properties of Pc1 geomagnetic pulsations of a complex shape On spectra and some properties of Pc1 geomagnetic pulsations of a complex shape

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987p%26ss...35.1381a&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 35, Nov. 1987, p. 1381-1388.

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Geomagnetic Pulsations, Spectrum Analysis, Frequency Distribution, Wave Packets

Scientific paper

The frequency spectra of a train of Pc1 geomagnetic pulsations consisting of 21 wave packets of a complex shape have been analyzed. Close to the central maximum, their spectra are shown to have one or two intense side-bands whose relative amplitudes are between 0.2 and 0.98. The central regions of the frequency spectra are characterized by asymmetry. All the other side bands of the spectra are found to have low intensities and to be distributed randomly in frequency. The spectra display intense maxima at the second harmonic, and, in some cases, weak maxima at the third harmonic.

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