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| Titel |
Ionospheric shock waves triggered by rockets |
| VerfasserIn |
C. H. Lin, J. T. Lin, C. H. Chen, J. Y. Liu, Y. Y. Sun, Y. Kakinami, M. Matsumura, W. H. Chen, H. Liu, R. J. Rau |
| 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 ; 32, no. 9 ; Nr. 32, no. 9 (2014-09-16), S.1145-1152 |
| Datensatznummer |
250121108
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| Publikation (Nr.) |
 copernicus.org/angeo-32-1145-2014.pdf |
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| Zusammenfassung |
| This paper presents a two-dimensional structure of the shock wave signatures in
ionospheric electron density resulting from a rocket transit using the rate
of change of the total electron content (TEC) derived from ground-based GPS
receivers around Japan and Taiwan for the first time. From the TEC maps
constructed for the 2009 North Korea (NK) Taepodong-2 and 2013 South Korea
(SK) Korea Space Launch Vehicle-II (KSLV-II) rocket launches, features of the V-shaped shock wave fronts in
TEC perturbations are prominently seen. These fronts, with periods of
100–600 s, produced by the propulsive blasts of the rockets appear
immediately and then propagate perpendicularly outward from the rocket
trajectory with supersonic velocities between
800–1200 m s−1 for both
events. Additionally, clear rocket exhaust depletions of TECs are seen along
the trajectory and are deflected by the background thermospheric neutral wind.
Twenty minutes after the rocket transits, delayed electron density
perturbation waves propagating along the bow wave direction appear with phase
velocities of 800–1200 m s−1. According to their propagation character,
these delayed waves may be generated by rocket exhaust plumes at earlier
rocket locations at lower altitudes. |
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