Accuracy of ES-layer screening-frequency forecasting

The accuracy of forecasts of the screening frequency of the middle-latitude sporadic-E layer is analyzed. It is shown that the accuracy of screening-frequency forecasts is a function of time of day and the a priori screening frequencies used in the forecast.Voronezh State University. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 36, No. 2, pp. 121–125, February, 1993.