A Study of the Relationship Between Southward Bz > -10 nT and Storm Time Disturbance Index During Solar Cycle 23
Keywords:
Magnetic reconnection , Dst, intense geomagnetic storm, moderate southward IMF- Bz, solar maximum, solar minimum, solar cycleAbstract
Magnetic reconnection can be used for studying the geoeffective processes in the coupled Sun–Solar wind – Magnetosphere dynamics leading to geomagnetic disturbance. In this study, 1-hour resolution solar wind plasma parameters from OMNIweb were used to investigate the relationship between moderate southward interplanetary magnetic field, IMF-Bz (i.e., Bz > -10 nT) and geomagnetic storm time disturbance, Dst , during the ascending, maximum and descending phases of solar cycle 23. Occurrences of different classes of geomagnetic storms during moderate southward Bz are reported. The occurrence of weak and moderate geomagnetic storms is more predominant during maximum solar activity than intense and super intense storms. It was found that 10.11 % (181) of all the classes of the storm were intense, and 0.17 % (3) were super intense storms. Furthermore, it was found that 4 (2.2 %) out of the 181 intense storms were caused by southward Bz > -10 nT which were associated with the complex structure due to the high-speed solar wind stream and corotating interacting region. In such a complex structure and Bz > -10 nT, we observed that an intense geomagnetic storm rarely occurs and if it does, would be predominant around solar maximum. It was found that long-duration (\Delta t > 6 hrs) of southward Bz (i.e., -10 nT < Bz <= -3.6 nT ) can also lead to an intense geomagnetic storm during the solar maximum and descending phase (moderate solar activity) of a solar cycle. The complex structure of intense geomagnetic storms associated with the Bz > -10 nT is rare and possesses a special configuration of magnetic field and solar wind parameters structures which are CIR manifestations.
Published
How to Cite
Issue
Section
Copyright (c) 2022 T. W. David, B. J. Adekoya, C. M. Michael, S. A. Adekoya, O. A. Adenuga, S. O. Kareem, H. T. Oladunjoye, A. E. Ajetunmobi, O. T. Williams, D. T. Ogundele

This work is licensed under a Creative Commons Attribution 4.0 International License.
How to Cite
Similar Articles
- Leonce Wehnelt TOKAM, Sanoussi S. OURO-DJOBO, Non-Intrusive Load Monitoring (NILM), Interests and Applications , Journal of the Nigerian Society of Physical Sciences: Volume 5, Issue 2, May 2023
- Adamu Shitu Hassan, Nafiu Hussaini, Analysis of an HIV - HCV simultaneous infection model with time delay , Journal of the Nigerian Society of Physical Sciences: Volume 3, Issue 1, February 2021
- A. A. Faremi, S. S. Oluyamo, K. D. Adedayo, Y. A. Odusote, O. I. Olusola, Influence of Silicon Nanoparticle on the Electrical Properties of Heterostructured CdTe/CdS thin films based Photovoltaic Device , Journal of the Nigerian Society of Physical Sciences: Volume 3, Issue 3, August 2021
- G. A. Shewa, F. I. Ugwuowo, Combating the Multicollinearity in Bell Regression Model: Simulation and Application , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 3, August 2022
- A. Sherin Fathima, I. Kartharinal Punithavthy, S. Johnson Jayakumar S, A. Rajeshwari, A. Sindhya, A. Muthuvel, Structural, Optical and Electrical Properties of V2O5 Thin films at different Molarities by Spray pyrolysis method , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 4, November 2022
- M. Siddalinga Prasad, An exploration of thermal characteristics of a permeable inclined moving inverted exponential fully wet magnetized stretching/shrinking fin , Journal of the Nigerian Society of Physical Sciences: Volume 7, Issue 4, November 2025
- Diva Marchandra Mulansari, Maulana Malik, Sindy Devila, Ibrahim Mohammed Sulaiman, Dian Lestari, Fevi Novkaniza, Fida Fathiyah Addini, A hybrid IFR-IDY conjugate gradient algorithm for unconstrained optimization and its application in portfolio selection , Journal of the Nigerian Society of Physical Sciences: Volume 8, Issue 1, February 2026
- Ibukun Akinsola, Aderemi Babatunde Alabi, Muibat A Soliu, Taiye Akomolafe, Optimization of Method and Components of Enzymatic Fuel Cells , Journal of the Nigerian Society of Physical Sciences: Volume 1, Issue 4, November 2019
- J. Damisa, J. O. Emegha, I. L. Ikhioya, Deposition Time induced Structural and Optical Properties of Lead Tin Sulphide Thin Films , Journal of the Nigerian Society of Physical Sciences: Volume 3, Issue 4, November 2021
- C. O. Lawani, G. J. Ibeh, O. O. Ige, Eli Danladi, J. O. Emmanuel, A. J. Ukwenya, P. O. Oyedare, Corrigendum to "Numerical Simulation of Copper Indium Gallium Diselenide Solar Cells Using One Dimensional SCAPS Software [J. Nig. Soc. Phys. Sci. 3 (2021) 48–58, https://doi.org/10.46481/jnsps.2021.133]" , Journal of the Nigerian Society of Physical Sciences: Volume 3, Issue 3, August 2021
You may also start an advanced similarity search for this article.
Most read articles by the same author(s)
- A. E. Ajetunmobi, A. O. Musthapha, I. C. Okeyode, A. M. Gbadebo, D. Al-Azmi, T. W. David, Assessing the need for radiation protection measures in artisanal and small scale mining of tantalite in Oke-Ogun, Oyo State, Nigeria , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 3, August 2022

