Linear dependence of the postsunset equatorial anomaly electron density on solar flux and its relation to the maximum prereversal E x B drift velocity through its dependence on solar flux

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dc.contributor.authorWhalen, James A.
dc.date.accessioned2018-10-24T13:41:27Z
dc.date.available2018-10-24T13:41:27Z
dc.date.issued2004-07-30
dc.description.abstractThe postsunset equatorial ionization anomaly, with maximum F layer electron density, Nemax, occurring near 2100 LT, has been found during solar maximum to be a linear function of the maximum prereversal E × B drift velocity (E × B drift). In order to examine this relation at all levels of solar flux, Nemax is measured during 13 years of an entire solar cycle by eight ionospheric sounders located in the anomaly in both north and south dip latitudes and in eastern Asia, the Pacific, and South America. At each location the monthly median Nemax increases linearly with the monthly average solar flux, Sa, over the range from 70 to 285 sfu. The linear function varies markedly with location and by month at each location. The relation to E × B drift, which is also a linear function of Sa, is determined using measurements of Nemax versus Sa measured at Bogota in the anomaly plotted as a function of E × B versus Sa measured at Jicamarca at the dip equator. The result is that Nemax is a linear function of E × B, which is in agreement with that found previously during solar maximum. Accordingly, the Nemax versus E × B relation is independent of Sa. The fact that Nemax is linear in Sa at each site implies Nemax is linear in E × B at each but with a functional dependence that varies with latitude and longitude.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationWhalen, J. A. (2004). Linear dependence of the postsunset equatorial anomaly electron density on solar flux and its relation to the maximum prereversal E x B drift velocity through its dependence on solar flux.==$Journal of Geophysical Research: Space Physics, 109$==(7), A07309. https://doi.org/10.1029/2004JA010528es_ES
dc.identifier.doihttps://doi.org/10.1029/2004JA010528es_ES
dc.identifier.journalJournal of Geophysical Research: Space Physicses_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/3120
dc.language.isoenges_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.relation.ispartofurn:issn:2169-9380
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectEquatorial anomalyes_ES
dc.subjectSolar cyclees_ES
dc.subjectSolar fluxes_ES
dc.subjectE × B driftes_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.01es_ES
dc.titleLinear dependence of the postsunset equatorial anomaly electron density on solar flux and its relation to the maximum prereversal E x B drift velocity through its dependence on solar fluxes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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