A real‐time forecast service for the ionospheric equatorial zonal electric field

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dc.contributor.authorManoj, C.
dc.contributor.authorMaus, S.
dc.date.accessioned2018-11-08T11:49:39Z
dc.date.available2018-11-08T11:49:39Z
dc.date.issued2012-09-18
dc.description.abstractThe zonal electric field is the primary driver of two important features of the equatorial ionosphere: (1)The Equatorial Ionization Anomaly (EIA), and (2) plasma density irregularities, also known as spread‐F. During propagation through the ionosphere, communication and navigation radio signals are attenuated, delayed and scattered by these ionospheric features. Prediction of the zonal electric field is therefore a key to the real‐time specification of the ionosphere. We divide the zonal electric field into a climatological contribution plus the prompt‐penetration contribution predicted by a transfer‐function model applied to the interplanetary electric field measured by the Advanced Composition Explorer (ACE) satellite. The zonal electric field is predicted about one hour in advance, covering all local times and longitudes. The real‐time prediction is available as a Google application at http://www.geomag.us/models/PPEFM/RealtimeEF.html. The benefit of this application to space weather forecasting is twofold: As the driver of the equatorial plasma fountain, the predicted zonal electric field is a leading indicator by 2–3 h of the EIA and the Total Electron Content (TEC) of the equatorial ionosphere. Second, rapid uplift of the ionosphere by strong eastward electric field is known to induce spread‐F. Prediction of enhanced prompt penetration electric field in the eastward direction therefore enables the forecast of radio communication and navigation outages in the equatorial region.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationManoj, C., & Maus, S. (2012). A real‐time forecast service for the ionospheric equatorial zonal electric field.==$Space Weather, 10$==(9), S09002. https://doi.org/10.1029/2012SW000825es_ES
dc.identifier.doihttps://doi.org/10.1029/2012SW000825es_ES
dc.identifier.journalSpace Weatheres_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/3419
dc.language.isoenges_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.relation.ispartofurn:issn:1542-7390
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectIonospherees_ES
dc.subjectPrompt penetrationes_ES
dc.subjectZonal electric fieldes_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.01es_ES
dc.titleA real‐time forecast service for the ionospheric equatorial zonal electric fieldes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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