Počet záznamů: 1

Time delays in the correlation between solar activity and the F2 region plasma frequency

  1. 1.
    0367651 - UFA-U 2012 RIV GB eng J - Článek v odborném periodiku
    Třísková, Ludmila - Truhlík, Vladimír - Podolská, Kateřina
    Time delays in the correlation between solar activity and the F2 region plasma frequency.
    Journal of Atmospheric and Solar-Terrestrial Physics. Roč. 73, 5-6 (2011), s. 623-626 ISSN 1364-6826
    Grant CEP: GA ČR GAP209/10/2086
    Výzkumný záměr: CEZ:AV0Z30420517
    Klíčová slova: F2 region ionosphere * Solar activity * Time series
    Kód oboru RIV: DG - Vědy o atmosféře, meteorologie
    Impakt faktor: 1.596, rok: 2011
    http://www.sciencedirect.com/science/article/pii/S1364682610004128

    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.
    Trvalý link: http://hdl.handle.net/11104/0202245