16 citations · 50 across the 8 of their papers we have counts for
8 papers
On the simultaneity of Forbush decreases: the simultaneous effects of interplanetary parameters and geomagnetic activity indices
I. O. Eya, E. U. Iyida, O. Okike +9
Forbush decreases (Fd) are transient, short-term reductions in the intensity of galactic cosmic rays that reach the Earth's surface. When this reduction is observed at multiple loc…
The Implication of Enhanced Cosmic Ray Diurnal Anisotropy on the Global Simultaneity of Forbush Decreases: A Statistical Approach
O. Okike, J. A. Alhassan, I. O. Eya
The short-term rapid CR flux depressions, generally referred to as Forbush decreases (FDs), are the most spectacular time-intensity CR variation. The need for analytical transforma…
Principal Component Analysis of Ground Level Enhancement of Cosmic Ray Events
R. E. Ugwoke, A. A. Ubachukwu, J. O. Urama +3
We applied principal component analysis (PCA) to the study of five ground level enhancement (GLE) of cosmic ray (CR) events. The nature of the multivariate data involved makes PCA…
Analysis of ground level enhancement events of 29 September 1989; 15 April 2001 and 20 January 2005
Romanius Ejike Ugwoke, Augustine Ubachukwu, Johnson Ozoemena Urama +3
We present the results of analyses of the ground level enhancements (GLEs) of cosmic ray (CR) events of 29 September 1989; 15 April 2001 and 20 January 2005. This involve examinati…
Testing the empirical relationship between Forbush decreases and cosmic ray diurnal anisotropy
Jibrin Adejoh Alhassan, Ogbonnaya Okike, Augustine Ejikeme Chukwude
The abrupt aperiodic modulation of cosmic ray (CR) flux intensity, often referred to as Forbush decrease (FD), plays a significant role in our understanding of the Sun-Earth electr…
Testing the Simultaneity of Forbush Decreases with Algorithm-Selected Forbush Event Catalogue
J. A. Alhassan, O. Okike, A. E. Chukwude
Accurate detection and precise timing of transient events such as X-ray photons, γ-ray burst, coronal mass ejections (CMEs), ground level enhancements (GLEs) and Forbush decreases…
Investigation of the Relation between Space-Weather Parameters and Forbush Decreases Automatically Selected from Moscow and Apatity Cosmic Ray Stations during Solar Cycle 23
Jibrin A. Alhassan, Ogbonnaya Okike, Augustine E. Chukwude
We present the results of an investigation of the relation between space-weather parameters and cosmic ray (CR) intensity modulation using algorithm-selected Forbush decreases (FDs…
Testing the Effect of Solar Wind Parameters and Geomagnetic Storm Indices on Galactic Cosmic Ray Flux Variation with Automated-Selected Forbush Decreases
Jibrin A. Alhassan., Ogbonnaya Okike, Augustine E. Chukwude
Forbush decrease (FD), discovered by Scott E. Forbush about 80 years ago, is reffered to as the non-repetitive short-term depression in galactic cosmic ray (GCR) flux, presumed to…