Computer Science
Scientific paper
May 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984maph...10..152k&link_type=abstract
In International Council of Scientific Unions Middle Atmosphere Program. Handbook for MAP, Vol. 10 p 152-159 (SEE N85-20450 11
Computer Science
Atmospheric Circulation, D Region, Siberia, Annual Variations, Atmospheric Heating, Gravity Waves, Ionospheric Drift, Planetary Waves, Radio Receivers, Stratosphere, Stratospheric Warming, Wind (Meteorology)
Scientific paper
Some main results of experimental investigations of the dynamical regime of the ionospheric D-region over East Siberia are presented. Regular measurements of horizontal ionospheric drifts by the radio method of closely spaced receivers, using a long wavelength transmitter operating at a frequency of 200 kHz, were carried out near Irkutsk, USSR, since 1975. The seasonal and inter-annual variations of prevailing wind (zonal and meridional), and amplitudes and phases of semi-diurnal tides are investigated. Evidence is presented to show the response of D-region dynamics to stratospheric warmings. Planetary and gravity waves are found in the wind field. Comparison with results of analogous measurements in Central Europe (Collm, GDR) reveals a longitudinal effect on the dynamical regime of the mid-latitude lower thermosphere.
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