Accession Number : AD0660552

Title :   THE VERTICAL STRUCTURE OF DYNAMO WINDS DEDUCED FROM GEOMAGNETIC VARIATIONS ASSOCIATED WITH SOLAR FLARES,

Corporate Author : RAND CORP SANTA MONICA CALIF

Personal Author(s) : Greenfield,Stanley M. ; Venkateswaran,S. V.

Report Date : OCT 1967

Pagination or Media Count : 30

Abstract : At 1522 UT on August 28, 1966 there occurred a massive solar flare of estimated importance 3B. This flare produced significant disturbances on the magnetograms obtained from some 36 stations distributed throughout the sunlit hemisphere. Much of the major structure observed on these magnetograms occurred with significant simultaneity and correlated well with observed SID events. A detailed time analysis of these records was attempted and equivalent ionospheric current systems calculated for several times beginning with the observed start of the flare. The analysis is consistent with a spectral history of a flare in which the X-ray radiation becomes progressively harder as the flare advances toward maximum. The analysis indicates the existence of vertical variation in the global wind systems in the dynamo region, resulting in a reversal of current in the upper portion of this region. It suggests that the time analysis of SFE represents a new tool for examining the vertical structure of the winds in this region.

Descriptors :   (*SOLAR FLARES, *GEOMAGNETISM), (*IONOSPHERIC DISTURBANCES, SOLAR FLARES), DIURNAL VARIATIONS, MAGNETOSPHERE, SOLAR WIND, SOLAR RADIATION, SCIENTIFIC SATELLITES, X RAYS

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE