Accession Number : AD0667535

Title :   THE INFLUENCE OF RADIO BRIGHTNESS TEMPERATURE ON SOLAR FLARE PREDICTION.

Descriptive Note : Air Force Surveys in Geophysics, no. 200,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Reilly,Alfred E. ; Enger,Isadore

Report Date : DEC 1967

Pagination or Media Count : 15

Abstract : 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)

Descriptors :   (*SOLAR FLARES, MATHEMATICAL PREDICTION), (*EXTRATERRESTRIAL RADIO WAVES, *SUNSPOTS), BLACKBODY RADIATION, TEMPERATURE, ACCURACY, STATISTICAL ANALYSIS

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE