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dc.contributor.authorHolappa, Lauri
dc.contributor.authorReistad, Jone Peter
dc.contributor.authorOhma, Anders
dc.contributor.authorGabrielse, Christine
dc.contributor.authorSur, Dibyendu
dc.date.accessioned2022-04-08T07:59:37Z
dc.date.available2022-04-08T07:59:37Z
dc.date.created2021-12-02T14:51:41Z
dc.date.issued2021
dc.identifier.issn2169-9380
dc.identifier.urihttps://hdl.handle.net/11250/2990678
dc.descriptionUnder embargo until: 2022-04-21en_US
dc.description.abstractThe dynamics of substorms are known to be dominated by the North-South (Bz) component of the Interplanetary Magnetic Field (IMF), which is the most important driver of the dayside reconnection. Even though the dawn-dusk (By) component is also known to play a role in substorm dynamics, its effects are not yet fully understood. In this paper we study how IMF By modulates the onset latitude, strength and occurrence frequency of substorms as well as the isotropic boundary (IB) latitude of energetic protons. We show that the substorm onset latitude and the IB latitude are about one degree lower for large magnitude By (>|By>|>3 nT) than for small By. In contrast, the substorm occurrence frequency is larger for small >|By>|. We suggest that the magnetotail is more stable during large >|By>|, requiring the magnetotail lobes (and hence the polar cap) to contain more flux to initiate a substorm compared to the situation when By is small.en_US
dc.language.isoengen_US
dc.publisherAGUen_US
dc.titleThe Magnitude of IMF By Influences the Magnetotail Response to Solar Wind Forcingen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2021. American Geophysical Union. All Rights Reserved.en_US
dc.source.articlenumbere2021JA029752en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.doi10.1029/2021JA029752
dc.identifier.cristin1963565
dc.source.journalJournal of Geophysical Research (JGR): Space Physicsen_US
dc.identifier.citationJournal of Geophysical Research (JGR): Space Physics. 2021, 126 (11), e2021JA029752.en_US
dc.source.volume126en_US
dc.source.issue11en_US


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