Simultaneous Amplitudes of ULF Pulsation Measured at Low, Middle, and Subauroral Latitudes during an Intense Magnetic Storm (P57)

Details Simultaneous Amplitudes of ULF Pulsation Measured at Low, Middle, and Subauroral Latitudes during an Intense Magnetic Storm (P57) Simultaneous Amplitudes of ULF Pulsation Measured at Low, Middle, and Subauroral Latitudes during an Intense Magnetic Storm (P57)

Nov 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ihy..worke.149s&link_type=abstract

2nd UN/NASA Workshop on International Heliophysical Year and Basic Space Science. Proceedings of the conference held 27 Novembe

Astronomy and Astrophysics

Astrophysics

Scientific paper

ramselva@iigs.iigm.res.in The storm time magnetic field analyzed for its respective Fourier components are shown to have intense pulsations at Pc6 wave modes than any other. This storm occurred on 29th Oct 2003 and it is known to be one of the intense storms in the last solar cycle. The analysis was supplemented with the solar wind parameters obtained by the ACE satellite. IMAGE satellite data on auroral intensity during this time are shown to have considerable changes in its intensity. The analysis in particular has revealed the relative intensities of Pc waves for all of its frequency ranges which include Pc6 viz, the Substrom pulsations. The comparison of amplitudes for these pulsations found at subauroral latitude with the middle and low latitude stations have shown to reveal that the pulsations are predominantly a high latitude phenomenon. The disturbance time scales at much longer time scales are rather found to relate to the changes in electric field in the ionosphere during such period.

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