Journal cover Journal topic
Annales Geophysicae An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 1.585 IF 1.585
  • IF 5-year value: 1.698 IF 5-year
    1.698
  • CiteScore value: 1.62 CiteScore
    1.62
  • SNIP value: 0.820 SNIP 0.820
  • IPP value: 1.52 IPP 1.52
  • SJR value: 0.781 SJR 0.781
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 83 Scimago H
    index 83
  • h5-index value: 24 h5-index 24
Volume 13, issue 7
Ann. Geophys., 13, 689–697, 1995
https://doi.org/10.1007/s00585-995-0689-4
© European Geosciences Union 1995
Ann. Geophys., 13, 689–697, 1995
https://doi.org/10.1007/s00585-995-0689-4
© European Geosciences Union 1995

  31 Jul 1995

31 Jul 1995

Relations of field line resonances and upstream waves and the winter attenuation of pulsations

J. Verő, I. Best, M. Vellante, H. Lühr, M. de Lauretis, L. Holló, F. Märcz, and J. Struesutik J. Verő et al.

Abstract. Using data on the occurrence frequency of geomagnetic pulsations of different periods from three observatories in Central Europe, conclusions are drawn about the occurrence of field line resonances and pulsations directly driven by upstream waves at L-values below 3. It was found that both types occur during the interval studied (first 6 months of the year 1991), but both the occurrence frequency of the two types and the characteristic period of the field line resonance change significantly as compared to other intervals. During Northern winter, pulsation activity is severely damped in solar maximum years, including the year 1991. The decrease in the activity of the pulsations is more significant at shorter periods.

Publications Copernicus
Download
XML
Citation