On the dependence of the lower thermospheric wind regime on the solar cycle
Abstract
The lower thermosphere occupies the intermediate position between the overlying thermospheric layers, for which direct correlation of its parameters with solar variety variations is well established, and the underlying ones, where this correlation is mainly of an indirect character. Therefore, for understanding the mechanism of solar terrestrial correlation it is important to investigate the dependence of different atmospheric parameters in the lower troposphere, and of wind regime parameters in particular, on the solar activity. Several series of observations were used which include the results of meteor radar wind velocity measurements carried out in Obninsk complemented by the data obtained using the same technique at Jodrell Bank from 1953 to 1958 and in Kharkov from 1960 to 1963. The interannual variations of values averaged over these periods for prevailing wind velocities and semidiurnal harmonic amplitudes and also results for some months are presented. These results are discussed.
- Publication:
-
Middle Atmosphere Program, Volume 25
- Pub Date:
- August 1987
- Bibcode:
- 1987maph...25..180D
- Keywords:
-
- Solar Activity Effects;
- Solar Cycles;
- Thermosphere;
- Wind Profiles;
- Wind Velocity Measurement;
- Annual Variations;
- Atmospheric Tides;
- Harmonic Analysis;
- Solar Terrestrial Interactions;
- Geophysics