Accession Number:

AD0668225

Title:

SOME ADDITIONAL ASPECTS OF THE UNEQUAL ACTIVITY OF THE NORTHERN AND SOUTHERN SOLAR HEMISPHERES: MICROWAVE RADIO BURSTS AND SWFS,

Descriptive Note:

Corporate Author:

HARVARD COLL OBSERVATORY CAMBRIDGE MA

Personal Author(s):

Report Date:

1968-01-01

Pagination or Media Count:

15.0

Abstract:

A study of the geomagnetic effects of major solar flares observed from 1937 through 1959, found that northern sunspot groups produced 62 of all observed major flares and a significantly larger proportion 86 of those followed by a great geomagnetic storm. Subsequent investigations showed that the Northern Hemisphere of the sun has been the more frequent source of great storms for most of this century, while the Southern Hemisphere was the more frequent source in the latter half of the 19th century. Detailed study of several active-sun phenomena observed from 1957 through 1960 provided additional information on the unequal activity of the two solar hemispheres, but left unanswered certain questions of potential interest to those concerned either with forecasting solar activity and its terrestrial consequences or with theoretical understanding of active-sun phenomena. Author

Subject Categories:

  • Astrophysics
  • Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE