The influence of radio brightness temperature on solar flare prediction
By: Alfred E. Reilly, Isadore Enger
Contributors: Enger, Isadore; Air Force Cambridge Research Laboratories (U.S.)
Series: Air Force surveys in geophysics -- no. 200
Publisher: Office of Aerospace Research, United States Air Force, Air Force Cambridge Research Laboratories, Space Physics Laboratory
Published: 1967
Place of publication: L.G. Hanscom Field, Bedford, Mass
Language: eng
Subjects: Solar flares; Sunspots; Solar activity; Forecasting
Description: An objective technique based on two measured parameters has been developed to determine the probability of occurrence of a solar flare near a sunspot group. The parameters utilized were the size of each sunspot group and the magnitude of an associated radio brightness temperature. Flare, sunspot, and radio data measured daily during the period from April 1962 through October 1966 were used in the study. These data were associated objectively and analyzed statistically. The size of a sunspot group is a significant predictor in itself. This analysis shows that consideration of radio brightness temperature significantly improves the accuracy of solar flare prediction beyond the accuracy that can be achieved by considering only the size of the sunspot group. (Author).
Notes: "AFCRL-67-0670."

"December 1967."

"Space Physics Laboratory Project 8666, 000D."

"Research partially supported by the Air Force In-House Laboratory Independent Research Fund."

Includes bibliographical references (p. 7).