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dc.contributor.author | Sherstyukov O. | |
dc.contributor.author | Ryabchenko E. | |
dc.date.accessioned | 2018-09-17T20:36:19Z | |
dc.date.available | 2018-09-17T20:36:19Z | |
dc.date.issued | 2005 | |
dc.identifier.issn | 0273-1177 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/133748 | |
dc.description.abstract | Wave behaviour of ionospheric sporadic E-layer variations is investigated by analysing Northern hemisphere ionosonde data for a continuous interval of 20 years. Wavelet analysis is used to derive time-frequency amplitude spectra of foEs oscillations. Dominant periodicities of 4-6 and 14-16 days in Es variations were detected. A spatio-temporal picture of quasi-16-day Es-layer oscillations during 1970-1989 is created by interpolation of wavelet amplitude values, calculated for each of more than one hundred stations. Several typical movement directions of quasi-16-day waves are determined using an original pattern recognition algorithm. A zonal component of 16-day wave direction is found to be dominant practically everywhere in the latitudes 45-75°N. Zonal distributions of quasi-16-day oscillation amplitude at 30-70°N are derived; their seasonal and longitudinal features are significant. © 2005 COSPAR. Published by Elsevier Ltd. All rights reserved. | |
dc.relation.ispartofseries | Advances in Space Research | |
dc.subject | Ionospheric dynamics | |
dc.subject | Quasi-16-day wave | |
dc.subject | Seasonal Es-layer variations | |
dc.subject | Sporadic E-layer variations | |
dc.title | Wave behaviour of sporadic E-layer variations at the latitudes 30-70°N | |
dc.type | Article | |
dc.relation.ispartofseries-issue | 11 | |
dc.relation.ispartofseries-volume | 36 | |
dc.collection | Публикации сотрудников КФУ | |
dc.relation.startpage | 2207 | |
dc.source.id | SCOPUS02731177-2005-36-11-SID27844522296 |