Publication de 12 numéros par an
ISSN Imprimer: 0040-2508
ISSN En ligne: 1943-6009
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Statistical Characteristics of Terrestrial Electromagnetic Field Fluctuations
RÉSUMÉ
Magnetometric complex of Kharkov National University has been described briefly. Principal statistical characteristics of variations of H - and D -components of the geomagnetic field in 1999 (duration of the observations was 1488 hours) have been calculated. It has been shown that at averaging on the time interval no less than 10 min statistical distributions of signal amplitudes differ noticeably from normal law. Temporal variations of the sampling root-mean-square deviations σH and σD reflect the nature of processes in the geospace (a level of geomagnetic and solar activity, diurnal variations etc.). Spectral and wavelet analysis has confirmed that variations of magnetometric signals H(t) and D(t) besides general information on variations of space weather contain also information on more "subtle" processes in the geospace (amplitude value, pulsation period, pulsation duration etc.).