Computer Science – Sound
Scientific paper
Aug 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975jatp...37.1133g&link_type=abstract
Journal of Atmospheric and Terrestrial Physics, vol. 37, Aug. 1975, p. 1133-1138. Research supported by the Meteorological Offi
Computer Science
Sound
Diurnal Variations, Grenades, Oscillating Flow, Rocket Sounding, Upper Atmosphere, Wind Variations, Atmospheric Tides, Data Recording, Phase Shift, Rocket Launching, Wind Effects
Scientific paper
Amplitudes and phases of diurnal and semidiurnal temperature and wind oscillations between 35 and 90 km were derived from 24 grenade experiments. Eight launchings in October gave diurnal components which were similar to those from ten launchings in May-August, both sets of results having phase profiles characteristic of the (1,1) tidal mode. Semidiurnal components derived from the combined 24 launchings showed rapid changes of phase at certain heights with almost constant phase at intermediate heights. Small numbers of launchings were found to be sufficient to resolve the diurnal oscillation indicating that this was the main component of atmospheric variation on the 24 hr time scale but semidiurnal oscillations could not be satisfactorily resolved with small numbers of launchings.
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