| A multivariate study of Forbush decrease simultaneity O Okike, AB Collier Journal of Atmospheric and Solar-Terrestrial Physics 73 (7-8), 796-804, 2011 | 34 | 2011 |
| Cosmic ray− global lightning causality O Okike, AE Umahi Journal of Atmospheric and Solar-Terrestrial Physics 189, 35-43, 2019 | 28 | 2019 |
| The empirical implication of conducting a Chree analysis using data from isolated neutron monitors O Okike, AE Umahi Solar Physics 294, 1-21, 2019 | 27 | 2019 |
| What determines the observational magnitudes of Forbush events on earth: a critique of the traditional manual method O Okike Monthly Notices of the Royal Astronomical Society 491 (3), 3793-3804, 2020 | 21 | 2020 |
| Investigation of Forbush Decreases and other solar/geophysical agents associated with lightning over the US latitude band and the continental Africa O Okike Journal of Geophysical Research: Space Physics 124 (6), 3910-3925, 2019 | 20 | 2019 |
| Chree method of analysis: a critique of its application to Forbush events selection criteria and timing O Okike The Astrophysical Journal 882 (1), 15, 2019 | 19 | 2019 |
| Investigation of the rigidity and sensitivity dependence of neutron monitors for cosmic ray modulation using algorithm-selected Forbush decreases O Okike, OC Nwuzor Monthly Notices of the Royal Astronomical Society 493 (2), 1948-1959, 2020 | 17 | 2020 |
| Testing the impact of coronal mass ejections on cosmic-ray intensity modulation with algorithm selected Forbush decreases O Okike, OC Nwuzor, FC Odo, EU Iyida, JE Ekpe, AE Chukwude Monthly Notices of the Royal Astronomical Society 502 (1), 300-312, 2021 | 15 | 2021 |
| Automated detection of simultaneous/non-simultaneous Forbush decreases and the associated cosmic ray phenomena O Okike Journal of Atmospheric and Solar-Terrestrial Physics 211, 105460, 2020 | 15 | 2020 |
| Amplitude of the usual cosmic ray diurnal and enhanced anisotropies: Implications for the observed magnitude, timing, and ranking of Forbush decreases O Okike The Astrophysical Journal 915 (1), 60, 2021 | 14 | 2021 |
| A comparison of catalogues of Forbush decreases identified from individual and a network of neutron monitors: a critical perspective O Okike, JA Alhassan, EU Iyida, AE Chukwude Monthly Notices of the Royal Astronomical Society 503 (4), 5675-5691, 2021 | 12 | 2021 |
| Amplitude of the observational Forbush decreases in the presence of cosmic ray diurnal anisotropy during high solar activity in 1972 O Okike, JA Alhassan Solar Physics 296, 1-27, 2021 | 10 | 2021 |
| Testing the effect of solar wind parameters and geomagnetic storm indices on Galactic cosmic ray flux variation with automatically-selected Forbush decreases JA Alhassan, O Okike, AE Chukwude Research in Astronomy and Astrophysics 21 (9), 234, 2021 | 8 | 2021 |
| Forbush decreases: Algorithm generated dataset O Okike Data in Brief 33, 106463, 2020 | 8 | 2020 |
| Testing the simultaneity of Forbush decreases with algorithm-selected Forbush event catalogue JA Alhassan, O Okike, AE Chukwude Journal of Astrophysics and Astronomy 43 (1), 6, 2022 | 6 | 2022 |
| Preliminary investigation of the multivariate relations between program-selected forbush decreases, worldwide lightning frequency, sunspot number and other solar-terrestrial … O Okike, JA Alhassan The European Physical Journal Plus 137 (3), 317, 2022 | 6 | 2022 |
| A preliminary investigation of the empirical relationship between small-amplitude Forbush Decreases and solar wind disturbances FM Menteso, AE Chukwude, O Okike, JA Alhassan Monthly Notices of the Royal Astronomical Society 521 (4), 6330-6353, 2023 | 5 | 2023 |
| Testing the cosmic ray-lightning connection hypothesis O Okike, AB Collier 2011 XXXth URSI General Assembly and Scientific Symposium, 1-4, 2011 | 3 | 2011 |
| Principal Component Analysis of Ground Level Enhancement of Cosmic Ray Events RE Ugwoke, AA Ubachukwu, JO Urama, O Okike, JA Alhassan, ... Research in Astronomy and Astrophysics 23 (3), 035017, 2023 | 2 | 2023 |
| Analysis of ground level enhancement events of 1989 September 29; 2001 April 15 and 2005 January 20 RE Ugwoke, AA Ubachukwu, JO Urama, O Okike, JA Alhassan, ... Research in Astronomy and Astrophysics 22 (10), 105008, 2022 | 2 | 2022 |
