Abstract
A statistical study of different solar activity features (sunspot number, solar active prominences and Hα solar flares) with all India homogeneous rainfall (RF) is presented using 44 years (1963–2006) data. The correlation coefficient, significance of correlation coefficient and other statistical parameters are computed for the seasonal months of January–February (JF), March–April–May (MAM), June–July–August–September (JJAS), October–November–December (OND) and also annual. Correlation coefficient and its significance of two, four and six point moving average of RF with different solar activity features have also been calculated. A negative correlation is found between annual RF and solar activity features, and for sunspot number and solar flares with two, four and six point moving average of RF whereas moves from negative to positive for solar active prominences. Lag/lead analysis between RF and different solar activity features have also been analyzed and presented.
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