Possible Influence of the 11-year Solar Cycle on Precipitation in Huashan Mountain of China over the Last 300 Years
Taking into account reconstructed precipitation time series in Huashan mountain area of China on the one hand and sunspot numbers observations on the other hand, the authors used here continuous wavelet transform and cross wavelet transform to investigate possible connection between the two sets of indicators. The analysis was performed over the last 300 years: it is found that solar activity influences precipitation in that geographical area of China to some extent, with an excess of 5% statistical significance level red noise over the 11-year solar activity cycle.
KeywordsSolar activity 11-year solar cycle Precipitation Wavelet transform
The authors are grateful to SIDC and NCDC for providing the yearly sunspot number series and precipitation series respectively, and thank the reviewers for helpful comments which improved the manuscript greatly. Wavelet software is provided by C. Torrence and G. Compo, and is available at: http://paos.colorado.edu/research/wavelets/. Software by Grinsted, A., et al., is available at: http://www.pol.ac.uk/home/research/waveletcoherence/. This work has made use of the Astrophysics Data System (NASA) and is supported by the Young Researcher Grant of National Astronomical Observatories, Chinese Academy of Sciences.
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