Abstract
The relation between yearly average value of cosmic ray intensity (CRI) observed at Moscow super neutron monitor during the period of 1996-2019 with yearly average values of Geomagnetic parameter Ap index and Kp index has been studied. It is noticed that the yearly average value of cosmic ray intensity is inversely correlated with the yearly average values of Ap index and Kp index. A negative correlation between the yearly average values of cosmic ray intensity (CRI) and the yearly average values of geomagnetic parameter Ap index and Kp index for the period of 1996-2019 has been found. Also, a strong negative correlation with the correlation coefficient -0.85 has been found between yearly average values of cosmic ray intensity (CRI) and Ap- index. Finally, there is a high negative correlation between the yearly average values of cosmic ray intensity (CRI) and Kp-index with the correlation coefficient -0.78.
Keywords: – Cosmic Ray Intensity (CRI), Geomagnetic Parameter Ap Index and Kp Index.
Puspraj Singh1*, N. K. Patel1, S. K. Sharma2, Rupali Gupta3