A four-year summary of whistler activity at Washington, D.C.

Abstract

Whistler and dawn chorus activity as recorded at Washington, D.C., during the period of July 1, 1955, to June 30, 1959, has been tabulated and summarized. Of the 1461 days considered in this analysis, 94 per cent had activity of some form. The equivalent of approximately five hundred 1800-foot reels of magnetic recording tape was analyzed. The last 2 years of the period covered was part of the IGY/IGC Ionospheric Physics Program.