Title: Solar wind and substorm-related changes in the lobes of the geomagnetic tail
Abstract: Journal of Geophysical Research (1896-1977)Volume 78, Issue 34 p. 8087-8096 Solar wind and substorm-related changes in the lobes of the geomagnetic tail Michael N. Caan, Michael N. CaanSearch for more papers by this authorRobert L. McPherron, Robert L. McPherronSearch for more papers by this authorChristopher T. Russell, Christopher T. RussellSearch for more papers by this author Michael N. Caan, Michael N. CaanSearch for more papers by this authorRobert L. McPherron, Robert L. McPherronSearch for more papers by this authorChristopher T. Russell, Christopher T. RussellSearch for more papers by this author First published: 1 December 1973 https://doi.org/10.1029/JA078i034p08087Citations: 92AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract Variations in the magnetic energy density in the lobes of the geomagnetic tail appear to be fundamentally associated with magnetospheric substorms. Thus in this paper the relationship of the tail lobe energy density to solar wind dynamic pressure, the north-south component of the interplanetary magnetic field, and substorm expansion onsets is investigated. Enhanced lobe energy densities are observed to follow both southward turnings of the interplanetary magnetic field and solar wind dynamic pressure increases. An empirical relationship is developed relating the tail lobe magnetic energy density to the solar wind dynamic pressure by using data obtained when the interplanetary field was northward. Localized, off-center, or multiple-onset substorm expansion phases are shown to have little effect on the lobe magnetic field. A positive correlation is found between magnetospherewide substorm expansions and decreases in the lobe energy density. The positive correlation of the energy density with both the solar wind dynamic pressure and a southward interplanetary magnetic field and the positive correlation between magnetospheric substorm activity and lobe energy density decreases are demonstrated to be consistent with our phenomenological model of substorm behavior. Citing Literature Volume78, Issue34Space Physics1 December 1973Pages 8087-8096 RelatedInformation
Publication Year: 1973
Publication Date: 1973-12-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 109
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