抄録
A statistical analysis of a vast global experimental material of irregularity ionization horizontal drift radio physical measurements at ionospheric levels up to 130km allows one to reveal the basic features of the dynamical regime of the lower thermosphere. Intercalibration of radiomethods by simultaneous rocket and radio meteor measurements and physical considerations allow the measurements to be interpreted as an information on the neutral wind in the radio wave reflection region. In the mid-latitude ionospheric E-region the prevailing wind has a clearly pronounced seasonal variation in contrast to equatorial and high-latitude zone. In the high-latitude E-region there is observed an independent circulation cell probably linked with the properties of the thermal regime in the polar lower thermosphere. The drift measurements for 85-95km by the method of spaced receivers in the long waveband in Eastern Siberia are reported for 1974-1976. The results are compared with simultaneous similar measurements at the same latitudes in Central Europe. The differences which are thought to be associated with climatic conditions at the observation sites, are emphasized.
