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| Titel |
Comparisons of recent data of density scale height at 544-877 km with CIRA model |
| VerfasserIn |
Liu Ya-Ying |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 14, no. 2 ; Nr. 14, no. 2, S.222-226 |
| Datensatznummer |
250012171
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| Publikation (Nr.) |
 copernicus.org/angeo-14-222-1996.pdf |
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| Zusammenfassung |
| In order to obtain the observed scale height
at high altitude a calculation method has been derived for determining density
scale height from the difference between two satellite's heights. Two balloon
satellites, Chinese DQ-1A and DQ-1B, were launched together into a nearly
circular orbit at a height near 900 km and they were together in orbit for 190
days. According to the difference of the orbital heights of these two balloon
satellites from 19 September 1990 to 9 March 1991, 67 values of density scale
height at heights of about 544–877 km were determined. In comparison with CIRA
model the results show that: (1) the trend of the variation of the scale height
with height is in agreement with CIRA; (2) the determined scale height values
present an oscillatory variation with time and height; and (3) the mean of the
observed scale height is 3.7% lower than the mean of corresponding values from
CIRA-72 and 0.8% lower than CIRA-86. |
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