The equatorial E-region and its plasma instabilities: a tutorial

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dc.contributor.authorFarley, D. T.
dc.date.accessioned2018-11-05T15:15:06Z
dc.date.available2018-11-05T15:15:06Z
dc.date.issued2009-04-02
dc.description.abstractIn this short tutorial we first briefly review the basic physics of the E-region of the equatorial ionosphere, with emphasis on the strong electrojet current system that drives plasma instabilities and generates strong plasma waves that are easily detected by radars and rocket probes. We then discuss the instabilities themselves, both the theory and some examples of the observational data. These instabilities have now been studied for about half a century (!), beginning with the IGY, particularly at the Jicamarca Radio Observatory in Peru. The linear fluid theory of the important processes is now well understood, but there are still questions about some kinetic effects, not to mention the considerable amount of work to be done before we have a full quantitative understanding of the limiting nonlinear processes that determine the details of what we actually observe. As our observational techniques, especially the radar techniques, improve, we find some answers, but also more and more questions. One difficulty with studying natural phenomena, such as these instabilities, is that we cannot perform active cause-and-effect experiments; we are limited to the inputs and responses that nature provides. The one hope here is the steadily growing capability of numerical plasma simulations. If we can accurately simulate the relevant plasma physics, we can control the inputs and measure the responses in great detail. Unfortunately, the problem is inherently three-dimensional, and we still need somewhat more computer power than is currently available, although we have come a long way.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationFarley, D. T. (2009). The equatorial E-region and its plasma instabilities: a tutorial.==$Annales Geophysicae, 27$==(4), 1509-1520. https://doi.org/10.5194/angeo-27-1509-2009es_ES
dc.identifier.doihttps://doi.org/10.5194/angeo-27-1509-2009es_ES
dc.identifier.journalAnnales Geophysicaees_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/3284
dc.language.isoenges_ES
dc.publisherEuropean Geosciences Uniones_ES
dc.relation.ispartofurn:issn:0992-7689
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectIonospherees_ES
dc.subjectElectric fields and currentses_ES
dc.subjectEquatorial ionospherees_ES
dc.subjectIonospheric irregularitieses_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.01es_ES
dc.titleThe equatorial E-region and its plasma instabilities: a tutoriales_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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