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    A response model for the sunspot cycle

    Authors
    De Meyer, F.
    Discipline
    Earth and related Environmental sciences
    Subject
    sunspot cycle
    Audience
    General Public
    Scientific
    Date
    2002
    Publisher
    IRM
    KMI
    RMI
    Metadata
    Show full item record
    Description
    The sunspot record for the time interval 1700-2001 can be considered as a sequence of independent, partly overlapping events, triggered quasi-periodically at intervals of the order of 11 years. The individual cycles are approximated by the step response of a band-pass dynamical system and the resulting model consists of the superposition of the response to a the independent pulses. The simulated sunspot data explain 98,4% of the cycle peak height variance and the residual standard deviation is 8,2 mean annual sunspots. A peak height of 117 for the solar cycle 23 occurring in 2000 is predicted, whereas the next cycle would start at about 2007 and will have a maximum around 111 in 2011. The model reproduces the high level of amplitude modulation in the interval 1950-2000 with a decrease afterwards. The model also recreates recurring sunspot minima and is linked to the phenomenon of the reversal of the solar magnetic field.
    Citation
    De Meyer, F. (2002). A response model for the sunspot cycle. , Vol. 21, Issue Publication scientifique et technique n° - Wetenschappelijke en technische publicatie nr., 17, IRM,
    Identifiers
    uri: https://orfeo.belnet.be/handle/internal/8517
    Type
    Book
    Peer-Review
    Yes
    Language
    eng
    Links
    NewsHelpdeskBELSPO OA Policy

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