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An Overview of the Planetary Theory of Solar Activity Variability


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1 Journal of Physics and Astronomy, United Kingdom
 

A summary of current knowledge of solar activity's long-term behaviour on a multi-millennial timescale, as rebuilt using the indirect proxy method, is presented here. The notion of solar activity is addressed, as well as an overview of the particular indices that are used to quantify various elements of changing solar activity, with a focus on sunspot number. Over long periods, only indirect proxies, such as the cosmogenic isotopes 14C and 10Be in natural stratified archives, can be used to derive quantitative information on previous solar activity (e.g., tree rings or ice cores).

Keywords

Solar Variability, Adiabatic Equilibrium, Galactic Cosmic Rays.
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  • An Overview of the Planetary Theory of Solar Activity Variability

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Authors

S. Mackowski
Journal of Physics and Astronomy, United Kingdom

Abstract


A summary of current knowledge of solar activity's long-term behaviour on a multi-millennial timescale, as rebuilt using the indirect proxy method, is presented here. The notion of solar activity is addressed, as well as an overview of the particular indices that are used to quantify various elements of changing solar activity, with a focus on sunspot number. Over long periods, only indirect proxies, such as the cosmogenic isotopes 14C and 10Be in natural stratified archives, can be used to derive quantitative information on previous solar activity (e.g., tree rings or ice cores).

Keywords


Solar Variability, Adiabatic Equilibrium, Galactic Cosmic Rays.