Correction of the Jicamarca electron-ion temperature ratio problem: Verifying the effect of electron Coulomb collisions on the incoherent scatter spectrum

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dc.contributor.authorAponte, Nestor
dc.contributor.authorSulzer, Michael P.
dc.contributor.authorGonzález, Sixto A.
dc.date.accessioned2018-06-28T18:20:31Z
dc.date.available2018-06-28T18:20:31Z
dc.date.issued2001-11-01
dc.description.abstractEver since the first attempts to fit Jicamarca autocorrelation function (ACF) measurements in the 1970s using a full nonlinear least squares analysis, an apparent electron-ion temperature ratio below unity has been deduced for a large portion of the F region data. The cause of this unexpected and geophysically unreasonable result has been a mystery until recently, when Sulzer and González [1999] (herein SG) explained how electron Coulomb collisions can distort, or narrow, the incoherent backscatter spectrum, and that for this narrowing to be observable two conditions must be met. First, the radar k vector must lie in a small range near perpendicular to the magnetic field, and second, the radar wavelength must be sufficiently long. Both of these conditions are true at Jicamarca. The accurate calculations from the SG theory are now available in a compact library, which we have incorporated into an incoherent scatter least squares fitting code. Using this code, we have reduced Jicamarca ACF data taken with the Faraday double-pulse mode, and find that the SG theory correctly interprets the ACF data from Jicamarca, thereby solving the longstanding Te/Ti ratio problem and thus allowing accurate electron and ion temperature measurements.es_ES
dc.description.peer-reviewPor pareses_ES
dc.formatapplication/pdfes_ES
dc.identifier.citationAponte, N., Sulzer, M. P., & González, S. A. (2001). Correction of the Jicamarca electron-ion temperature ratio problem: Verifying the effect of electron Coulomb collisions on the incoherent scatter spectrum.==$Journal of Geophysical Research: Space Physics, 106$==(A11), 24785-24793. https://doi.org/10.1029/2001JA000103es_ES
dc.identifier.doihttps://doi.org/10.1029/2001JA000103es_ES
dc.identifier.journalJournal of Atmospheric and Solar-Terrestrial Physicses_ES
dc.identifier.urihttp://hdl.handle.net/20.500.12816/1587
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relation.ispartofurn:issn:1364-6826
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_ES
dc.subjectIonospherees_ES
dc.subjectF regiones_ES
dc.subjectElectron distributiones_ES
dc.subjectRadares_ES
dc.subjectRemote sensinges_ES
dc.subject.ocdehttp://purl.org/pe-repo/ocde/ford#1.05.01es_ES
dc.titleCorrection of the Jicamarca electron-ion temperature ratio problem: Verifying the effect of electron Coulomb collisions on the incoherent scatter spectrumes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES

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