Mostrar el registro sencillo del ítem Manoj, C. Maus, S. Alken, P. 2018-11-13T10:24:17Z 2018-11-13T10:24:17Z 2013-08-22
dc.identifier.issn 2169-9402
dc.description.abstract "The prompt penetration of the interplanetary electric field to the equatorial ionosphere is conveniently modeled with a frequency‐dependent transfer function. However, long‐period responses (>3 h) of previously estimated transfer functions differ considerably due to insufficient ionospheric eastward electric field (EEF) data useful for spectral analysis. The EEF derived from the Challenging Minisatellite Payload (CHAMP) satellite provides a new opportunity to reliably estimate the long‐period transfer function for the first time. Our objectives in this paper are twofold: first, we analyze the frequency spectra of the equatorial ionospheric eastward electric field for periods greater than 6 h; second, we test the hypothesis that the average prompt‐penetration effect lasts less than 3 h after an initial perturbation in the interplanetary electric field (IEF). We find that atmospheric sources dominate the EEF at diurnal frequencies, and its subharmonics and magnetospheric sources dominate the EEF for other frequencies. The CHAMP‐derived transfer function has smaller errors than the previous estimates, and we confirm that the average prompt‐penetration response of the equatorial ionospheric electric field to a 1 mV/m change in the IEF is negligible after 3 h and up to the maximum analysis period of 32 h. We update our transfer function model with the new data sets and make the filter coefficients available to the scientific community. The transfer function prediction matched reasonably well with the EEF observation in both the South American and Indian sectors. A transfer function model of the prompt‐penetration effects, driven by the interplanetary electric field, can be highly beneficial to the real‐time specification of the ionosphere". es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Journal of Geophysical Research: Space Physics es_ES
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.rights.uri es_ES
dc.source Repositorio institucional - IGP es_ES
dc.subject Campos eléctricos es_ES
dc.subject Satélites artificiales es_ES
dc.subject Radio Observatorio de Jicamarca es_ES
dc.subject Radar--Perú--Mediciones es_ES
dc.subject Radar--Perú--Observaciones es_ES
dc.subject Radar coherente es_ES
dc.subject Ionósfera--Observaciones es_ES
dc.subject Ionósfera--Mediciones--Perú es_ES
dc.title Long‐period prompt‐penetration electric fields derived from CHAMP satellite magnetic measurements es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde Atmósfera es_ES
dc.subject.ocde Observación es_ES
dc.subject.ocde Radar es_ES
dc.subject.ocde Medición es_ES
dc.subject.ocde Perú es_ES
dc.subject.ocde Geofísica es_ES
dc.subject.ocde Ciencias espaciales es_ES
dc.identifier.journal Journal of Geophysical Research: Space Physics es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.1002/jgra.50511 es_ES




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