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Planetary and gravity wave signatures in the F region ionosphere with impact on radio propagation predictions and variability
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SYSNO ASEP 0104043 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Planetary and gravity wave signatures in the F region ionosphere with impact on radio propagation predictions and variability Title Planetární a gravitační vlny v F oblasti ionosféry s dopadem na variabilitu a předpovídání šíření radiových vln Author(s) Altadill, D. (ES)
Apostolov, E. M. (BG)
Boška, Josef (GFU-E)
Laštovička, Jan (GFU-E)
Šauli, Petra (UFA-U) RID, ORCIDSource Title Annals of Geophysics - ISSN 1593-5213
Roč. 47, 2/3 (2004), s. 1109-1119Number of pages 11 s. Action Final Meeting COST271 Action. Effects of the upper atmosphere on terrestrial and Earth-space communications (EACOS). Event date 26.08.2004-27.08.2004 VEvent location Abingdon Country GB - United Kingdom Event type WRD Language eng - English Country IT - Italy Keywords ionosphere ; planetary waves ; gravity waves Subject RIV DG - Athmosphere Sciences, Meteorology R&D Projects OC 271.10 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GA205/01/1071 GA ČR - Czech Science Foundation (CSF) GP205/02/P077 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z3042911 - UFA-U, BC-A Annotation The aim of the work within the WP3.1 of the COST 271 Action is the characterization of the variability introduced in the F region ionosphere by "Planetary Wave Signatures" (PWS) and "Gravity Wave Signatures" (GWS). Typical patterns of percentage of time occurence and time duration of PWS, their climatology and main drivers, as well as their vertical and longitudinal structure have been obtained. Despite of above characterization, the spectral distribution of event duration is too broad to allow for a reasonable prediction of PWS from ionospheric measurements themselves. GWS with a regular morning/evening wave bursts and specific GWS event whose arising can be predicted have been evaluated. As above, their typical pattern of occurance and time duration, and their vertical structure have been obtained. The latter events remain in the ionospheric variability during disturbed days while additional wave enhancements of auroral origin occur. However, both types of disturbances can be distinguished Workplace Institute of Atmospheric Physics Contact Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Year of Publishing 2005
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