Earth Science Research; Vol. 7, No. 1; 2018 Lihua Ma, Zhiqiang Yin & Yanben Han – National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China Abstract Direct observations of solar activity are available for the past four century, so some proxies reflecting solar activity such as 14C, 10Be and geomagnetic variations are used to reconstruct … Continue reading "Quasi 500-Year Cycle Signals In Solar Activity"

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January 31, 2018 at 11:00PM