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dc.contributor.author Hysell, D. L.
dc.contributor.author Kudeki, E.
dc.contributor.author Chau Chong Shing, Jorge Luis
dc.date.accessioned 2018-07-16T14:38:47Z
dc.date.available 2018-07-16T14:38:47Z
dc.date.issued 2005-10-14
dc.identifier.citation Hysell, D. L., Kudeki, E., & Chau, J. L. (2005). Possible ionospheric preconditioning by shear flow leading to equatorial spread F.==$Annales Geophysicae, 23$==(7), 2647-2655. https://doi.org/10.5194/angeo-23-2647-2005 es_ES
dc.identifier.govdoc index-oti2018
dc.identifier.uri http://hdl.handle.net/20.500.12816/1876
dc.description.abstract Vertical shear in the zonal plasma drift speed is apparent in incoherent and coherent scatter radar observations of the bottomside F region ionosphere made at Jicamarca from about 1600–2200 LT. The relative importance of the factors controlling the shear, which include competition between the E and F region dynamos as well as vertical currents driven in the E and F regions at the dip equator, is presently unknown. Bottom-type scattering layers arise in strata where the neutral and plasma drifts differ widely, and periodic structuring of irregularities within the layers is telltale of intermediate-scale waves in the bottomside. These precursor waves appear to be able to seed ionospheric interchange instabilities and initiate full-blown equatorial spread F. The seed or precursor waves may be generated by a collisional shear instability. However, assessing the viability of shear instability requires measurements of the same parameters needed to understand shear flow quantitatively - thermospheric neutral wind and off-equatorial conductivity profiles. es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher European Geosciences Union (EGU) es_ES
dc.relation.ispartof urn:issn:0992-7689
dc.rights info:eu-repo/semantics/openAccess es_ES
dc.rights.uri https://creativecommons.org/licences/by/4.0/ es_ES
dc.subject Ionosphere es_ES
dc.subject Equatorial ionosphere es_ES
dc.subject Ionospheric irregularities es_ES
dc.subject Plasma waves es_ES
dc.title Possible ionospheric preconditioning by shear flow leading to equatorial spread F es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde http://purl.org/pe-repo/ocde/ford#1.05.01 es_ES
dc.identifier.journal Annales Geophysicae es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi https://doi.org/10.5194/angeo-23-2647-2005 es_ES

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