International Journal of Mathematics and Computers in Simulation


ISSN: 1998-0159
Volume 13, 2019

Notice: As of 2014 and for the forthcoming years, the publication frequency/periodicity of NAUN Journals is adapted to the 'continuously updated' model. What this means is that instead of being separated into issues, new papers will be added on a continuous basis, allowing a more regular flow and shorter publication times. The papers will appear in reverse order, therefore the most recent one will be on top.

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Volume 13, 2019


Title of the Paper: Three Dimensional Computational Analysis and Visualization of Worldwide Solar Quiet Daily Variations in the Earth's Magnetic Field

 

Authors: Akinfenwa T. Fashanu, Felix Ale, Olufemi A. Agboola, Babatunde A. Rabiu, Oyewusi Ibidapo-Obe

Pages: 1-8

Abstract: This work develops a high resolution computational platform for visualization and analysis of spatio-temporal profiles of Solar quiet (Sq) daily variation of Earth’s magnetic field components. Geomagnetic field data sampled on per minute basis for the year 1996 (a year of solar minimum and beginning of solar cycle # 23 (Rz = 8.6)) was obtained from sixty-four observatory stations of INTERMAGNET global network. Developed computing algorithm and architecture are deployed on high performance computing facility available at the Nigerian Space Agency. Minute by minute Sq values at individual station are evaluated and combined to generate per-minute worldwide maps of Sq daily variation. These maps were sequenced to construct moving images of global daily Sq evolution on a per-minute time scale as demonstrated for the year 1996. Consistent with ionospheric physics; Sq was found steadily maximal at local noon for most locations across the globe. In addition, month-to-month and seasonal variability patterns were observed in Solar quiet along the magnetic North Sq (H). The foci of Sq (H) at different locations on the globe exhibit very high temporal variability. Thus, the developed platform improved time resolution for processing geomagnetic field variations to the scale of sixty seconds. Hence, the developed computational platform supports close monitoring of rapid variations and impulsive changes in Earth’s geomagnetic field.