Responses and Periodic Variations of Cosmic Ray Intensity and Solar Wind Speed to Sunspot Numbers

Figure 1

The daily distributions and the trends for the sunspot numbers, cosmic ray intensity, and the solar wind speed. The trends reveal the modulations and the long-term responses of the cosmic ray intensity and the solar wind speed to the sunspot numbers. The cosmic ray intensity shows periodicity around 11-year solar cycle while the solar wind speed shows irregular modulations in response to the solar activities. (a) Cosmic ray intensity daily distribution.(b) Cosmic ray intensity trend. (c) Sunspot numbers daily distribution. (d) Sunspot numbers trend. (e) Solar wind speed daily distribution. (f) Solar wind speed trend.

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