Dependence of the amplitude of Pc5-band magnetic field variations on the solar wind and solar activity

We have studied the dependence of the amplitude of magnetic field variations in the Pc5 band (1.6–6.7 mHz) on the solar wind and solar activity. Solar wind parameters considered are the bulk velocity Vsw and the variation of the solar wind dynamic pressure δPsw. The solar activity dependence is exam...

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Bibliographic Details
Published in:Journal of Geophysical Research: Space Physics 2012-04, Vol.117 (A4), p.n/a
Main Authors: Takahashi, Kazue, Yumoto, Kiyohumi, Claudepierre, Seth G., Sanchez, Ennio R., Troshichev, Oleg A., Janzhura, Alexander S.
Format: Article
Language:English
Subjects:
Atmospheric sciences
Correlation coefficient
dynamic pressure variations
Magnetic fields
Magnetism
Pc5 pulsations
Solar activity
solar activity phase
solar wind velocity
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Summary:We have studied the dependence of the amplitude of magnetic field variations in the Pc5 band (1.6–6.7 mHz) on the solar wind and solar activity. Solar wind parameters considered are the bulk velocity Vsw and the variation of the solar wind dynamic pressure δPsw. The solar activity dependence is examined by contrasting observations made in 2001 (solar activity maximum) and 2006 (solar activity declining phase). We calculated hourly Pc5 amplitude using data from geostationary satellites at L = 6.8 and ground stations covering 1 
ISSN:0148-0227
2169-9380
2156-2202
2169-9402
DOI:10.1029/2011JA017120