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dc.contributor.author Woodman Pollitt, Ronald Francisco
dc.contributor.author Pingree, Joseph E.
dc.contributor.author Swartz, Wesley E.
dc.date.accessioned 2018-07-05T14:35:49Z
dc.date.available 2018-07-05T14:35:49Z
dc.date.issued 1985-08
dc.identifier.issn 1364-6826
dc.identifier.uri http://repositorio.igp.gob.pe/handle/IGP/1713
dc.description En: Journal of Atmospheric and Terrestrial Physics, v. 47, n. 8–10, (August–October 1985), p. 867-874. es_ES
dc.description.abstract "Until now the presence of F-region irregularities responsible for spread-F (sp-F) traces in ionograms has been considered as a purely night-time phenomenon extending sporadically lo the early morning hours. We here in respond that, on two occasions (26 March 1974 and 1 February 1984) similar irregularities were observed between 1400 and 1600 hours local time with the Jicamarca radar. These irregularities caused enhancements in the power of the radar echo of as much as two orders of magnitude, were found over a region of a few hundred kilometers on the topside of the F-region extending from around 600 to 1000 km altitude and persisted for 1-2 h. The irregularities were aspect sensitive (aligned with the magnetic field) and produced echoes with a fading rate of the order of one lo a few seconds. The background zonal electric field, inferred from the vertical drift velocity, was fairly constant in altitude, with values smaller than 0.1 mV. m-1. During the duration of the events, zonal components of both signs occurred, with the component passing through zero several times. We have no information on the vertical component of E. These irregularities could not be observed with ground-based ionosondes, since they are on the topside of the F-region. They may be related to fossil bubbles that are responsible for HF ducting observed by satellites." es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Instituto Geofísico del Perú es_ES
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.rights.uri info:eu-repo/semantics/restrictedAccess es_ES
dc.source Repositorio institucional - IGP es_ES
dc.subject Región F es_ES
dc.subject Radar--Perú--Mediciones es_ES
dc.subject Ecos es_ES
dc.subject Ionósfera--Investigación--Perú es_ES
dc.subject Campos eléctricos es_ES
dc.subject Alta atmósfera es_ES
dc.title Spread-F-like irregularities observed by the Jicamarca radar during the day-time es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde Radar es_ES
dc.subject.ocde Perú es_ES
dc.subject.ocde Medición es_ES
dc.subject.ocde Atmósfera es_ES
dc.identifier.journal Journal of Atmospheric and Terrestrial Physics es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.1016/0021-9169(85)90061-3 es_ES

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