Articles | Volume 33, issue 3
https://doi.org/10.5194/angeo-33-395-2015
https://doi.org/10.5194/angeo-33-395-2015
Regular paper
 | 
24 Mar 2015
Regular paper |  | 24 Mar 2015

Are dayside long-period pulsations related to the cusp?

V. Pilipenko, V. Belakhovsky, M. J. Engebretson, A. Kozlovsky, and T. Yeoman

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Latest update: 04 Mar 2024
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Short summary
Irregular broadband pulsations and narrow-band Pc5 waves are found to be a ubiquitous element of ULF activity in the dayside high-latitude region. To identify the ionospheric projections of the cusp, we use the width of return signal of the SuperDARN radar. The spatial structure of broadband Pc5-6 pulsation spectral power has been found to have a localized latitudinal peak, not under the cusp proper as was previously thought, but several degrees southward from the equatorward cusp boundary.