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dc.contributor.author Hysell, D. L.
dc.contributor.author Larsen, M. F.
dc.contributor.author Swenson, C. M.
dc.contributor.author Barjatya, A.
dc.contributor.author Wheeler, T. F.
dc.contributor.author Sarango, M. F.
dc.contributor.author Woodman Pollitt, Ronald Francisco
dc.contributor.author Chau Chong Shing, Jorge Luis
dc.contributor.author Sponseller, D.
dc.contributor.author Bullet, T. W.
dc.date.accessioned 2018-07-16T18:19:08Z
dc.date.available 2018-07-16T18:19:08Z
dc.date.issued 2006-07
dc.identifier.issn 1432-0576
dc.identifier.uri http://repositorio.igp.gob.pe/handle/IGP/1906
dc.description En: Annales Geophysicae, v. 24, n. 5, (July 2006), p. 1387-1400. es_ES
dc.description.abstract "Sounding rocket experiments were conducted during the NASA EQUIS II campaign on Kwajalein Atoll designed to elucidate the electrodynamics and layer structure of the postsunset equatorial F region ionosphere prior to the onset of equatorial spread F (ESF). Experiments took place on 7 and 15 August 2004, each comprised of the launch of an instrumented and two chemical release sounding rockets. The instrumented rockets measured plasma number density, vector electric fields, and other parameters to an apogee of about 450 km. The chemical release rockets deployed trails of trimethyl aluminum (TMA) which yielded wind profile measurements. The Altair radar was used to monitor coherent and incoherent scatter in UHF and VHF bands. Electron density profiles were also measured with rocket beacons and an ionosonde. Strong plasma shear flow was evident in both experiments. Bottom-type scattering layers were observed mainly in the valley region, below the shear nodes, in westward-drifting plasma strata. The layers were likely produced by wind-driven interchange instabilities as proposed by Kudeki and Bhattacharyya (1999). In both experiments, the layers were patchy and distributed periodically in space. Their horizontal structure was similar to that of the large-scale plasma depletions that formed later at higher altitude during ESF conditions. We argue that the bottom-type layers were modulated by the same large-scale waves that seeded the ESF. A scenario where the large-scale waves were themselves produced by collisional shear instabilities is described." 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/openAccess es_ES
dc.rights.uri http://creativecommons.org/licences/by-nc-nd/2.5/pe/ es_ES
dc.source Repositorio institucional - IGP es_ES
dc.subject Cohetes de sondeo es_ES
dc.subject Radar--Perú--Mediciones es_ES
dc.subject Radar--Observaciones es_ES
dc.subject Electrodinámica es_ES
dc.subject Región F es_ES
dc.subject Cohetes de sondeo--Equipo y suministros es_ES
dc.subject Ionósfera--Investigación es_ES
dc.subject Plasma (Gases ionizados) es_ES
dc.subject Electrochorro ecuatorial es_ES
dc.title Rocket and radar investigation of background electrodynamics and bottom-type scattering layers at the onset of equatorial spread F es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde Radar es_ES
dc.subject.ocde Investigación científica es_ES
dc.subject.ocde Atmósfera es_ES
dc.subject.ocde Física es_ES
dc.subject.ocde Ciencias espaciales es_ES
dc.subject.ocde Experimentación es_ES
dc.subject.ocde Medición es_ES
dc.subject.ocde Observación es_ES
dc.subject.ocde Investigación de operaciones es_ES
dc.identifier.journal Annales Geophysicae es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.5194/angeo-24-1387-2006 es_ES

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