Solar ultraviolet measurements of the Mg II core-to-wing ratio from the NOAA9 satellite show a fast rise for solar cycle 22 from the minimum in September 1986. The high values in late 1989 are comparable to the maximum values for cycle 21. Estimates of earlier solar UV variations are made back to 1947 using a combination of the 10 cm solar radio flux (F10) and the sunspot blocking function. The latter is interpreted to partially remove the gyroresonance component from F10, which is not present in the UV flux.


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    Titel :

    Solar UV Temporal Variations During Solar Cycle 22 and the Twentieth Century


    Beteiligte:


    Erscheinungsdatum :

    01.08.1990


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


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