Investigation of flare production potential of sunspot groups
2017
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Advisor: Doç. Dr. Ali Kılçık
Abstract (EN)
In this study, Sunspots, Coronal Mass Ejections (CMEs) and geomagnetic activity data sets were analyzed and Sunspots Numbers (SSNs), Sunspot Areas (SSAs), solar flares, CMEs and geomagnetic indices (Ap, aa, Kp, Pc index) were compared and the relationships between them were investigated. Sunspots are solar activity indicators that have the longest observed as well as the most commonly used data in the literature. The observations of Sunspot Numbers and Sunspot Areas have been made for years, and the existence of long-time data allows the periodic changes to be examined. In this study, we used various computer codes to investigate the relationship between these fundamental data and other solar activity indicators data such as the number of solar flares, flux of solar flares and 10.7 cm solar radio flux, geomagnetic activity indices and coronal mass ejections. The degree and direction of Relationship between all these indicators were investigated by using of Pearson correlation analysis method. To investigate the reliability of the relationship between average sunspot group area and flare production potantial of each sunspot group Student t test was used (r = 0.996, t = 24.92, df = 5, p > 0.001). As a result of the analyses, the new description that we called the flare production potential of sunspots was introduced to the literature. Thus, the probabilities of flare production potential with only using morphological classification of the sunspots were obtained (0.05 for A group, 0.09 for B group, 0.21 for C group, 0.56 for D group, 1.15 for E group, 2.18 for F group, and 0.12 for H group).
Author
Dr. Saliha Eren
Institution
How to Cite
Saliha Eren (Master Thesis). Investigation of flare production potential of sunspot groups, 2017, Akdeniz University.
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