Gravity wave observations at a Southern Hemisphere mid-latitude station using the total electron content technique

Details Gravity wave observations at a Southern Hemisphere mid-latitude station using the total electron content technique Gravity wave observations at a Southern Hemisphere mid-latitude station using the total electron content technique

Nov 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jatp...40.1113m&link_type=abstract

Journal of Atmospheric and Terrestrial Physics, vol. 40, Oct.-Nov. 1978, p. 1113-1122. Research supported by the Australian Res

Physics

4

F Region, Gravity Waves, Ionospheric Electron Density, Midlatitude Atmosphere, Southern Hemisphere, Traveling Ionospheric Disturbances, Annual Variations, Azimuth, Diurnal Variations, Drift Rate, F 2 Region, Ionospheric Propagation, Jet Streams (Meteorology), Magnetic Disturbances, Propagation Velocity, Wind Effects

Scientific paper

Experimental observations of TIDs in the F-region were made by measuring the variations in the total electron content on a spaced array. Large numbers of daytime disturbances were seen moving zonally, suggesting the influence of the prevailing background winds. Directional filtering of TIDs caused by winds was observed for the Southern Hemisphere. TID percentage and absolute amplitude were highly correlated with the disturbance period but had no significant relationship with either jetstream proximity or magnetic activity. Magnetic activity was correlated with TID speeds. The observed wave speeds tended to decrease with decreasing distance from the jetstream.

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