Temperate zone sporadic‐<i>E</i> maps (<i>ƒ</i>₀<i>E</i>_s &gt; 7 MHz)

Abstract

This paper offers three maps of ƒ 0 E s &gt; 7 MHz for temperate zones of the world. The maps were prepared for CCIR Interim Working Party 6/8 (“VHF Propagation by Sporadic‐ E ”) and are intended for use in connection with a companion paper in this issue by Miya, Shimizu, and Kojima.