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Time delays in the correlation between solar activity and the F2 region plasma frequency
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SYSNO ASEP 0367651 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Time delays in the correlation between solar activity and the F2 region plasma frequency Author(s) Třísková, Ludmila (UFA-U) RID
Truhlík, Vladimír (UFA-U) RID, ORCID
Podolská, Kateřina (UFA-U) RID, ORCIDSource Title Journal of Atmospheric and Solar-Terrestrial Physics. - : Elsevier - ISSN 1364-6826
Roč. 73, 5-6 (2011), s. 623-626Number of pages 4 s. Language eng - English Country GB - United Kingdom Keywords F2 region ionosphere ; Solar activity ; Time series Subject RIV DG - Athmosphere Sciences, Meteorology R&D Projects GAP209/10/2086 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z30420517 - UFA-U, BC-A (2005-2011) UT WOS 000288889600007 DOI 10.1016/j.jastp.2010.12.017 Annotation The upper ionosphere electron density characterized by the critical frequency foF2 is correlated with solar activity when using monthly medians or averages from longer intervals. When shorter intervals are studied, time delays of different lengths in solar activity effects in the ionosphere are observed. The correlation between the foF2 values and the solar radiation intensity, given by the F10.7 index, is studied using the 1967-2003 data of mid-latitude ionosonde stations spaced at distances greater than 1000 in geographical longitude. At which longitude the reaction of foF2 to the changes in solar activity appears sooner depends on the position of the interval studied in the 22-year solar cycle. 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 2012 Electronic address http://www.sciencedirect.com/science/article/pii/S1364682610004128
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