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dc.contributor.authorBirn, J.
dc.contributor.authorBorovsky, Joseph E.
dc.contributor.authorHesse, Michael
dc.contributor.authorKepko, L.
dc.date.accessioned2021-08-09T08:00:54Z
dc.date.available2021-08-09T08:00:54Z
dc.date.created2021-03-17T11:43:36Z
dc.date.issued2020
dc.identifier.issn2169-9380
dc.identifier.urihttps://hdl.handle.net/11250/2766871
dc.description.abstractUsing a magnetohydrodynamic simulation of magnetotail reconnection, flow bursts, and dipolarization, we further investigate the current diversion and energy flow and conversion associated with the substorm current wedge (SCW) or smaller-scale wedgelets. Current diversion into both Region 1 (R1) and Region 2 (R2) sense systems is found to happen inside (that is, closer to the center of the flow burst) and equatorward of the R1 and R2 type field-aligned currents. In contrast to earlier investigations the current diversion takes place in dipolarized fields extending all the way toward the equatorial plane. An additional FAC system with the signature of Region 0 (R0) (same sense as R2) is found at higher latitudes in taillike fields. The diversion into this system takes place in layers equatorward of the R0 currents but outside the equatorial plane. Whereas the diversion into R1 and R2 systems is pressure gradient dominated, the diversion into the R0 system is inertia dominated and may persist only during flow burst activity. While azimuthally diverging flows near the dipole contribute to the buildup of R1 and R2 systems, converging flows at larger distance contribute to the buildup of R0 and R1 systems. In contrast to the current diversion regions inside the current wedge, generator regions are found on the outside of the wedge, similar to earlier results. Within the tail domain covered, these regions are overpowered by load regions, such that additional generator regions must be expected closer to Earth, not covered by the present simulation.en_US
dc.language.isoengen_US
dc.publisherAGUen_US
dc.titleSubstorm Current Wedge: Energy Conversion and Current Diversionen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright 2020. American Geophysical Union. All Rights Reserved.en_US
dc.source.articlenumbere2020JA028073en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.doi10.1029/2020JA028073
dc.identifier.cristin1898600
dc.source.journalJournal of Geophysical Research (JGR): Space Physicsen_US
dc.identifier.citationJournal of Geophysical Research (JGR): Space Physics. 2020, 125 (8), e2020JA028073.en_US
dc.source.volume125en_US
dc.source.issue8en_US


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