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CME Properties and Fuzzy Classification

Published online by Cambridge University Press:  13 May 2016

Y. H. Tang  and
Z. Z. Han
Y. H. Tang
Affiliation:
Department of Astronomy, Nanjing University, Nanjing, China
Z. Z. Han
Affiliation:
Department of Mathematics, Southeast University, Nanjing, China

Abstract

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In this paper, the theory and method of fuzzy classification are applied to analyse CME properties, with the use of the data in preliminary report during 1979-1981, the theoretical computation for CME category is performed. According to the original data of average properties for 9 structural classes of CME, the standardized value is obtained by average value and standard deviation. The fuzzy similitude matrix and equivalent matrix are built by use of the correlation coefficient transformation and the method of similitude coefficient, then we can divide 9 different structures into different categories according to different threshold value. Halo was the most energetic, and Single Spike, Diffuse Fan CMEs were the least energetic.

Type
Session IV: Structure and Dynamics of the Transiton Region and Corona
Information
Symposium - International Astronomical Union , Volume 203: Recent Insights into the Physics of the Sun and Heliosphere: Highlights from Soho and Other Space Missions , 2001 , pp. 422 - 424
Copyright
Copyright © Astronomical Society of the Pacific 2001 

References

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