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dc.contributor.author McNamara, L. F.
dc.contributor.author Cooke, D. L.
dc.contributor.author Reinisch, B. W.
dc.contributor.author Valladares, C. E.
dc.date.accessioned 2018-07-18T11:36:22Z
dc.date.available 2018-07-18T11:36:22Z
dc.date.issued 2007-03-13
dc.identifier.issn 1944-799X
dc.identifier.uri http://repositorio.igp.gob.pe/handle/IGP/1920
dc.description En: Radio Science v. 42, n. 2 (March 2007), p. RS2005, 1-14. es_ES
dc.description.abstract " Ionospheric plasma frequencies at the altitude of the CHAMP satellite have been deduced from ionosonde true‐height profiles for Jicamarca, Peru, and have been compared with the in situ measurements made by CHAMP. The differences between the plasma frequencies have been found to be well within the uncertainties associated with the ionosonde profiles, confirming the validity of the CHAMP measurements. For satellite‐ionosonde separations of less than 250 km and for satellite altitudes below the peak of the F2 layer, the average discrepancy between the two plasma frequencies is 0.25 MHz or 4%. For the most reliable ionosonde measurements, the average discrepancies reduce to 0.18 MHz (or 1.7%), with a standard deviation of 0.16 MHz (or 1.5%). Given the validity of the CHAMP plasma frequencies, corresponding ionosonde and CHAMP observations have been used to support the practice of extending the ionosonde profile above hmF2 by assuming a Chapman layer with a constant scale height equal to that of the lower side of the F2 layer peak. The average discrepancy for CHAMP passing above the peak of the F2 layer is 0.22 MHz (or 2.6%), and the standard deviation is 0.8 MHz (or 13.3%)." 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 Plasmas espaciales es_ES
dc.subject Radar--Perú--Mediciones es_ES
dc.subject Ionósfera--Observaciones es_ES
dc.subject Astrofísica de plasma es_ES
dc.subject Absorción de ondas de radio ionosféricas es_ES
dc.subject Frecuencias de plasma es_ES
dc.title Comparison of CHAMP and Digisonde plasma frequencies at Jicamarca, Peru 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 Ciencias espaciales es_ES
dc.subject.ocde Atmósfera es_ES
dc.subject.ocde Observación es_ES
dc.identifier.journal Radio Science es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.1029/2006RS003491 es_ES

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