Correlation Between COSMIC Rayn Intensity and Geomagnetic Activity Indices

Abstract

This study conducts an extensive analysis to explore the correlation between the monthly average cosmic ray intensity (CRI) and indicators of geomagnetic activity, primarily focusing on the Ap and Kp indices. The study covers two distinct time intervals, 1996-2008 and 2009-2019. By analyzing the correlation between CRI and geomagnetic indices, we constructed linear graphs depicting their associations. The results consistently reveal a noticeable inverse correlation between monthly average CRI and the Ap index. Correlation coefficients were computed to quantify these relationships using established statistical methods. Between 1996 and 2008, a strong negative correlation of -0.89 was observed between CRI and the Ap index. Similarly, during 2009-2019, a significant negative correlation of -0.39 was noted. The monthly average CRI exhibited a negative correlation of -0.72 with the Kp index during 1996-2008, and a more pronounced negative correlation of -0.70 during 2009-2019. These findings underscore the intricate interplay between cosmic ray intensity and geomagnetic activity, offering insights into the broader understanding of space weather phenomenon