Abstract
Yearly average of cosmic ray intensity (CRI) observed at Oulu super neutron monitor (NM) has been studied with yearly average of corresponding sunspot number (SSN) and also yearly average of corresponding geomagnetic activity parameter Ap, Kp Index during the period of 2013 to 2024.It is seen that yearly average of cosmic ray intensity is inversely correlated with yearly average of corresponding sunspot number (SSN), geomagnetic activity parameter Ap, Kp Index. We have found high negative correlation with correlation coefficient -0.96 between yearly average of cosmic ray intensity (CRI) and yearly average of sunspot number (SSN). High negative correlation with correlation coefficient -0.76 has been determined between yearly average of cosmic ray intensity (CRI) and geomagnetic activity parameter Ap Index and -0.58 between yearly average of cosmic ray intensity and geomagnetic activity parameter Kp index.
KEYWORDS
Cosmic Ray Intensity (CRI), Sunspot Number (SSN), Geomagnetic Activity Parameter Kp and Ap Index.
Jitendra Satnami1*, Achyut Panday2
1Research Scholar, Department of Physics A.P. S. University, Rewa-486003, M. P., India
2Department of Physics Govt. T.R.S. College, Rewa-486003, M. P., India