KC Okpala, DF Kalu, NON Achu - Physical Science International …, 2020 - archive.pcbmb.org
The variations of Galactic Cosmic Ray (GCR) as compared with the behaviour of various solar activity indices, heliospheric parameters and the geomagnetic index Ap during 1999 …
E Friday, OK Chukwudi - 2019 - academicjournals.org
In this work, monthly means of cosmic ray count rates from two mid latitude (Hermanus and Rome), and two higher latitude (Inuvik and Oulu) neutron monitors (NM) were employed and …