Accession Number : AD0686456

Title :   CORRELATION OF A SOLAR FLARE WITH A VISUAL AURORA,

Corporate Author : MARYLAND UNIV COLLEGE PARK INST FOR MOLECULAR PHYSICS

Personal Author(s) : Meriwether,J. W. , Jr. ; Benesch,W. M. ; Tilford,S. G.

Report Date : 1968

Pagination or Media Count : 27

Abstract : On February 13, 1967 at 1746 UT, the brightest flare of that year erupted from the surface of the sun. Approximately 56 hours later, the sudden commencement of a magnetic storm was recorded by many observatories around the world. Midway between the worldwide sudden commencement and the termination of the magnetic storm, there occurred at Ft. Churchill an aurora attaining nearly IBC III and an accompanying local negative magnetic bay. Measurements were made on this aurora as one of a series investigated with a multiple channel photometer simultaneously recording ten wavelength bands. The aurora of February 16 appeared normal under casual observation, but a detailed examination of its emission structure has turned up a number of deviations from other aurorae studied. It is concluded that the magnetic storm is primarily responsible for these unusual effects. (Author)

Descriptors :   (*SOLAR FLARES, MAGNETIC STORMS), (*MAGNETIC STORMS, *AURORAE), CORRELATION TECHNIQUES, IONOSPHERIC DISTURBANCES, GEOMAGNETISM, COSMIC RAYS, RADIO INTERFERENCE, MAGNETOMETERS, RIOMETERS, PHOTOMETERS

Subject Categories : Atmospheric Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE