Computer Science – Sound
Scientific paper
Aug 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988rasc...23..580p&link_type=abstract
Radio Science (ISSN 0048-6604), vol. 23, July-Aug. 1988, p. 580-584.
Computer Science
Sound
F Region, Ionograms, Ionospheric Disturbances, Ionospheric Sounding, Radio Stars, Radio Telescopes, Antenna Arrays, Ionosondes
Scientific paper
F region parameters can change by relatively large amounts over short periods of time under so-called 'undisturbed' conditions. There is evidence that these changes are due to propagating acoustic gravity waves. While the periods of these variations and other local parameters can be measured with a high-resolution digital ionosonde, other quantities like wavelength or magnitude and direction of the propagation velocity cannot be observed. The Clarke Lake radio astronomical antenna array which can be operated in the HF band allows tracking the motion of medium scale (100-500 km) disturbances by observation of the changes in the apparent position of radio stars. Some first data samples were recorded and analyzed.
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