Interaction of periods of spring reconstruction of the stratospheric circulations and E sporadic layer intensity

On the basis of 33-year time series, of ionospheric data the interrelation between intensity of sporadic layer E in summer period with the date of spring seasonal reconstruction of zonal circulation in stratosphere has been studied. The data obtained suggest that inter year variations of intensity of summer Es layer depend on the date of the spring reconstruction beginning in stratosphere. In the years with early dates of reconstruction the mean summer values of Es layer intensity are higher compared with years of late date of reconstruction