Abstract The mid-term periodicities of polar faculae are studied separately for the total disk, northern and southern hemispheres of the Sun for a time interval from 1951 August to 1998 December. Apart from the 11-year Schwabe cycle which is the fundamental period and is found in all of the three time series, the following prominent results are found: (1) the rotational periodicity of solar activity at high latitudes is approximately from 28 to 32days; (2) a large number of quasi-periods appearing in low-latitude solar activity (annual variation, 1.3–1.7years, quasi-biennial oscillation, and 4–5years) also exist in polar faculae; (3) the periodicities on both hemispheres are not identical.


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    Titel :

    On mid-term periodicities of high-latitude solar activity


    Beteiligte:
    Deng, L.H. (Autor:in) / Li, B. (Autor:in) / Xiang, Y.Y. (Autor:in) / Dun, G.T. (Autor:in)

    Erschienen in:

    Advances in Space Research ; 54 , 1 ; 125-131


    Erscheinungsdatum :

    2014-03-04


    Format / Umfang :

    7 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch






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