An unusual geometry of the ionospheric signature of the cusp: implications for magnetopause merging sites

The HF radar Doppler spectral width boundary (SWB) in the cusp represents a very good proxy for the equatorward edge of cusp ion precipitation in the dayside ionosphere. For intervals where the Interplanetary Magnetic Field (IMF) has a southward component (Bz < 0), the SWB is typicall...

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Bibliographic Details
Main Authors: G. Chisham, M. Pinnock, I. J. Coleman, M. R. Hairston, A. D. M. Walker
Format: Article
Language:English
Published: Copernicus Publications 2002-01-01
Series:Annales Geophysicae
Online Access:https://www.ann-geophys.net/20/29/2002/angeo-20-29-2002.pdf