Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988baicz..39..209s&link_type=abstract
Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 39, July 1988, p. 209-213.
Astronomy and Astrophysics
Astronomy
1
Annual Variations, Atmospheric Density, Thermosphere, Upper Atmosphere, Atmospheric Models, Density Distribution, Fourier Series, Statistical Analysis, Vertical Distribution
Scientific paper
Fourier analysis is used to find the semi-annual variation of the thermospheric total density; the variation is characterized by a "Density index D". The results of the individual annual runs were subjected to statistical treatment and a formula for the semi-annual variation was found. It is then compared to the formula used in the CIRA 72 model.
Helali Y. E.
Horvath Andras
Illes E.
Sehnal Ladislav
Vykutilova M.
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