McIntosh active-region class similarities and suggestions for mergers

Details McIntosh active-region class similarities and suggestions for mergers McIntosh active-region class similarities and suggestions for mergers

Mar 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994soph..150..147b&link_type=abstract

Solar Physics, vol. 150, no. 1-2, p. 147-164

Physics

4

Classes, Classifications, Parameterization, Penumbras, Solar Activity, Solar Flares, Sunspots, Umbras, Visual Observation, Average, Comparison, Correlation, Decision Theory, Random Noise, Ranking

Scientific paper

McIntosh active-region classifications reported during a five-year period were examined to determine similarities among the classes. Two methods were used extensively to determine these similarities. The number of transitions among classes were used to determine the most frequent transitions out of each class, and the alternative classes reported for the same region by different sites were used to establish which classes were neighboring classes. These transition frequencies and neighboring classes were used to identify classes that could be eliminated or merged with other classes. Class similarities were used to investigate the relative importance of several pairs of decisions that occur within a single McIntosh parameter. In particular, the redundancy of parameters in some classes was examined, and the class similarities were used to identify which of these parameters could be eliminated. Infrequently reported classes were also considered, and suggestions for mergers were made when similarities between classes could be identified.

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