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

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DOI: 10.4236/ijaa.2013.34055    4,536 Downloads   6,898 Views  

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.

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H. Basurah, A. Dhignah and F. Kamal, "Asymmetry of Sunspot Distribution in KAU Solar Observations during 22 and 23 Solar Cycles," International Journal of Astronomy and Astrophysics, Vol. 3 No. 4, 2013, pp. 480-482. doi: 10.4236/ijaa.2013.34055.

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