الفهرس 
General Introduction and Data AnalysisOnly 14 pages are availabe for public view
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Abstract
The present study consists of three chapters. Chapter (I), presents an overview of the Sun structure and its solar activity parameters. Also, it gives the type of data measurements, their websites, and the treatment-technique that applied to data sets. The 13-month running averages have been applied to all data for hemispheric sunspot numbers, sunspot areas, and sunspot unit areas. We performed the running cross-correlation to get a look on how the observations of one series are correlated with the observations of another series at various time lag and lead. Moreover, the wavelet power spectra (WPS) technique has been applied to solar and plasma parameters.