The equatorial electrojet during geomagnetic storms and substorms

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dc.contributor.authorYamazaki, Yosuke
dc.contributor.authorKosch, Michael J.
dc.date.accessioned2018-11-15T17:37:16Z
dc.date.available2018-11-15T17:37:16Z
dc.date.issued2015-02-16
dc.description.abstractHe climatology of the equatorial electrojet during periods of enhanced geomagnetic activity is examined using long‐term records of ground‐based magnetometers in the Indian and Peruvian regions. Equatorial electrojet perturbations due to geomagnetic storms and substorms are evaluated using the disturbance storm time (Dst) index and auroral electrojet (AE) index, respectively. The response of the equatorial electrojet to rapid changes in the AE index indicates effects of both prompt penetration electric field and disturbance dynamo electric field, consistent with previous studies based on F region equatorial vertical plasma drift measurements at Jicamarca. The average response of the equatorial electrojet to geomagnetic storms (Dst<−50 nT) reveals persistent disturbances during the recovery phase, which can last for approximately 24 h after the Dst index reaches its minimum value. This “after‐storm” effect is found to depend on the magnitude of the storm, solar EUV activity, season, and longitude.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationYamazaki, Y., & Kosch, M. J. (2015). The equatorial electrojet during geomagnetic storms and substorms.==$Journal of Geophysical Research: Space Physics, 120$==(3), 2276-2287. https://doi.org/10.1002/2014JA020773es_ES
dc.identifier.doihttps://doi.org/10.1002/2014JA020773es_ES
dc.identifier.journalJournal of Geophysical Research: Space Physicses_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/3635
dc.language.isoenges_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.relation.ispartofurn:issn:2169-9380
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectEquatorial electrojetes_ES
dc.subjectIonospheric currentses_ES
dc.subjectGeomagnetic stormses_ES
dc.subjectPrompt penetration electric fieldes_ES
dc.subjectDisturbance dynamo electric fieldes_ES
dc.subjectGround‐based magnetometerses_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.01es_ES
dc.titleThe equatorial electrojet during geomagnetic storms and substormses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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