"The magnetic storm of 26-28 March 1976 has been the subject of considerable scientific interest, being part of a Retrospective World Interval, a Study of Traveling Interplanetary Phenomena Interval II and a Special International Magnetosphereic Study Interval [e.g., Coffey and McKinnon, 1977]. This report presents contour maps of magnetic potential variations over the Northern Hemisphere at 10-min intervals between 000 UT, 26 March and 0550 UT, 28 March 1978 as an aid to further study of this even. These are excerpts from a larger data set, with plots every minute, which were used to make a data moving picture. An analysis of these maps for several magnetic substorms occurring during this period is presented in Kroehl and Richmond [1979]"--Introduction.

National Environmental Satellite and Data Information Service (NESDIS)

Northern Hemisphere