Middle Latitude Ionospheric D-Region Responses to Distant Launchings and Flights of Space Vehicles Investigated Experimentally by Means of a Partial Reflection Technique

摘要

Possible changes in the electron density, N, in the middle latitude ionospheric D-region were investigated experimentally by a partial reflection technique over periods of launchings and flights of the variously typed rockets for different distances from launching sites. Rockets of medium and great powers were found to be able to produce short-time pulsed disturbances in the lower ionosphere electron density over distances up to several thousands of kilometers. It seems likely that these effects have been caused by stimulated pulsed electron flows coming from the magnetosphere into the lower ionosphere of the Earth, with their energy of ～10~2 - 10 KeV and flux density values of p ～10~8 - 10~9 m~2s~(-1).