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, 2021 - iopscience.iop.org
Cosmic ray (CR) diurnal anisotropy and Forbush decreases (FDs), as well as the
relationship between them, have received considerable study. Several astrophysicists have …
relationship between them, have received considerable study. Several astrophysicists have …
A preliminary investigation of the empirical relationship between small-amplitude Forbush Decreases and solar wind disturbances
High-magnitude (amplitude) Forbush decreases (FDs) are generally employed by
researchers investigating the solar-terrestrial connection mechanisms. Although it has been …
researchers investigating the solar-terrestrial connection mechanisms. Although it has been …
Evaluating the relationship between strong geomagnetic storms and electric grid failures in Poland using the geoelectric field as a GIC proxy
A Gil, M Berendt-Marchel, R Modzelewska… - Journal of Space …, 2021 - swsc-journal.org
We study intense geomagnetic storms (Dst<− 100nT) during the first half of the solar cycle
24. This type of storm appeared only a few times, mostly associated with southwardly …
24. This type of storm appeared only a few times, mostly associated with southwardly …
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, 2020 - academic.oup.com
Forbush decreases (FDs) seem to be the compass for researchers searching for Sun–Earth
weather relationships. Thus, a wide range of the solar-terrestrial literature is dominated by …
weather relationships. Thus, a wide range of the solar-terrestrial literature is dominated by …
Testing the impact of coronal mass ejections on cosmic-ray intensity modulation with algorithm selected Forbush decreases
The relationship between coronal mass ejections (CMEs) and Forbush decreases (FDs) has
been investigated in the past. But the selection of both solar events are difficult. Researchers …
been investigated in the past. But the selection of both solar events are difficult. Researchers …
Automated detection of simultaneous/non-simultaneous Forbush decreases and the associated cosmic ray phenomena
O Okike - Journal of Atmospheric and Solar-Terrestrial Physics, 2020 - Elsevier
The knowledge of the periodic diurnal anisotropy in the cosmic ray (CR) flux intensity as well
as the enhanced anisotropy that might accompany Forbush events is not novel. Theoretical …
as the enhanced anisotropy that might accompany Forbush events is not novel. Theoretical …
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, 2021 - Springer
The short-term rapid depressions in cosmic-ray (CR) flux intensity, historically referred to as
Forbush decreases (FDs), are useful tools for testing some of the numerous hypotheses on …
Forbush decreases (FDs), are useful tools for testing some of the numerous hypotheses on …
A comparison of catalogues of Forbush decreases identified from individual and a network of neutron monitors: a critical perspective
Short-term rapid depressions in Galactic cosmic ray (GCR) flux, historically referred to as
Forbush decreases (FDs), have long been recognized as important events in the …
Forbush decreases (FDs), have long been recognized as important events in the …
Investigation of the rigidity and sensitivity dependence of neutron monitors for cosmic ray modulation using algorithm-selected Forbush decreases
We emphasize the need for a careful and rigorous timing of Forbush decreases (FDs) as
well as a correct calculation of FD magnitudes in studies related to cosmic ray (CR) …
well as a correct calculation of FD magnitudes in studies related to cosmic ray (CR) …
Chree method of analysis: a critique of its application to Forbush events selection criteria and timing
O Okike - The Astrophysical Journal, 2019 - iopscience.iop.org
The Chree method of analysis is a useful tool employed in solar–terrestrial studies. In a bid
to fine-tune the results obtained by the technique, some areas of improvements, especially …
to fine-tune the results obtained by the technique, some areas of improvements, especially …