The influence of nonmigrating tides on the longitudinal variation of the equatorial electrojet

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dc.contributor.authorLühr, H.
dc.contributor.authorRother, M.
dc.contributor.authorHäusler, K.
dc.contributor.authorAlken, P.
dc.contributor.authorMaus, S.
dc.date.accessioned2018-10-31T11:19:17Z
dc.date.available2018-10-31T11:19:17Z
dc.date.issued2008-08-22
dc.description.abstractThe climatological model of the equatorial electrojet, EEJM‐1, derived from Ørsted, CHAMP and SAC‐C satellite measurements provides the opportunity to investigate the longitudinal variation of the current strength in detail. Special emphasis is put in this study on the effect of nonmigrating tides. We have found that the influence of the diurnal eastward‐propagating mode with wavenumber‐3, DE3, is particularly strong. In polar orbiting satellite observations the DE3 tidal signal appears as a four‐peaked longitudinal structure. We have put special emphasis in our analysis to isolate the DE3 contribution from other sources contributing to the wavenumber‐4 structure in satellite data. The amplitude of the DE3 signature in the EEJ not only peaks during equinox seasons, but is also strong around the June solstice. When looking at the modulation of the EEJ intensity the DE3 accounts for about 25% during the months of April through September. It is thus the dominant cause for longitudinal variations. During December solstice months the influence of DE3 is negligible. A secondary three‐peaked longitudinal pattern emerges during solstice seasons when the DE3 influence is removed. From the data available it is, however, not clear whether this pattern is related to any tidal drivers.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationLühr, H., Rother, M., Häusler, K., Alken, P., & Maus, S. (2008). The influence of nonmigrating tides on the longitudinal variation of the equatorial electrojet.==$Journal of Geophysical Research: Space Physics, 113$==(A8), A08313. https://doi.org/10.1029/2008JA013064es_ES
dc.identifier.doihttps://doi.org/10.1029/2008JA013064es_ES
dc.identifier.journalJournal of Geophysical Research: Space Physicses_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/3241
dc.language.isoenges_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.relation.ispartofurn:issn:2169-9380
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectIonospheric currentses_ES
dc.subjectEquatorial electrojetes_ES
dc.subjectThermospherees_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.01es_ES
dc.titleThe influence of nonmigrating tides on the longitudinal variation of the equatorial electrojetes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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