Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleA new technique for determining Substorm Onsets and Phases from Indices of the Electrojet (SOPHIE).AuthorsForsyth, C.; Rae, I. J.; Coxon, J. C.; Freeman, M. P.; Jackman, C. M.; Gjerloev, J.; Fazakerley, A. N.PublicationJournal of Geophysical Research. Space Physics, 2015, Vol 120, Issue 12, p10,592ISSN2169-9380Publication typeArticleDOI10.1002/2015JA021343