Asymmetry of Sunspot Distribution in KAU Solar Observations during 22 and 23 Solar Cycles

Hassan Mohammad Basurah, Amerah Fouad Dhignah, Fouad Yousef Kamal

Department of Astronomy, Faculty of Science, King Abudlaziz University, Jeddah, KSA.

DOI: 10.4236/ijaa.2013.34055                

Abstract

The King Abdul Aziz University (KAU) solar observations of Sunspot on daily passes from 1981 to 2009 are used to investigate the North-South asymmetry variation of the sunspot numbers and its area. We found that the asymmetry dominated to be southern during the last two solar cycles, which evidently exists following a long-term characteristic time scale. Our results were in compliance with the global asymmetry.

Keywords

Sunspots; Long Solar Cycles; North-south Solar Asymmetry

Conflicts of Interest

The authors declare no conflicts of interest.

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