Effect of solar wind disturbances on small-amplitude simultaneous Forbush events during solar cycle 23

CJ Ugwu, JA Alhassan, O Okike, FM Menteso… - Advances in Space …, 2024 - Elsevier
The transient and rapid reduction in galactic cosmic ray (GCR) flux intensity, commonly
referred to as Forbush decrease (FD), is widely used as a mediator variable in searching for …

Empirical implications of location-dependent cosmic ray diurnal anisotropy on small-amplitude Forbush decreases

O Okike, FM Menteso - The European Physical Journal Plus, 2024 - epjplus.epj.org
Forbush decreases (FDs) are one of the most spectacular phenomena in the time-intensity
changes of cosmic ray (CR) flux. They play a crucial role in space-weather predictions. Their …

On the variation of small-amplitude Forbush decreases with solar-geomagnetic parameters

CJ Ugwu, O Okike, FM Menteso, JA Alhassan… - Astrophysics and Space …, 2024 - Springer
Detection of weak signals remains challenging in astrophysics. This is particularly
applicable in the investigation of Forbush events. There is thus, a paucity of catalogs of small …

The implications of the superposed effect of cosmic ray diurnal anisotropy on weak Forbush Events at Apatity and Moscow Neutron Monitors

FM Menteso, AE Chukwude, O Okike… - Astrophysics and Space …, 2024 - Springer
Abstract Low-magnitude (FD (%)≥− 3%) Forbush decreases (FDs) and their space weather
linkages are recently becoming popular in the literature. Accurate timing and correct …

A performance appraisal of the global survey and the fully automated methods of Forbush event identification and timing using small-amplitude Forbush decreases

O Okike, FM Menteso - RAS Techniques and Instruments, 2024 - academic.oup.com
Forbush decrease (FD), commonly defined as an abrupt reduction in the time-intensity flux of
cosmic rays (CRs), is one of the long-investigated astrophysical phenomena. Though the …

On the variation of small-amplitude Forbush decreaseswith solar-geomagnetic parameters

CJ Ugwu, O Okike, FM Menteso, JA Alhassan… - 2024 - researchsquare.com
Detection of weak signals remains challenging in astrophysics. This is particularly
applicable in the investigation of Forbush events. There is thus, a paucity of catalogs of small …

Earth-directed coronal mass ejection shock sheaths as drivers of minor forbush decreases

O OGUNJOBI, O Okike, J Koffa - Authorea Preprints, 2024 - essopenarchive.org
Coronal mass ejections (CMEs) directed toward Earth can modulate cosmic ray fluxes
detected on the ground. We provide definitive evidence that even moderately fast CMEs …