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| Titel |
Observations of atmospheric gravity waves by radio interferometry: are results biased by the observational technique? |
| VerfasserIn |
C. Mercier, A. R. Jacobson |
| 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 ; 15, no. 4 ; Nr. 15, no. 4, S.430-442 |
| Datensatznummer |
250012729
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| Publikation (Nr.) |
 copernicus.org/angeo-15-430-1997.pdf |
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| Zusammenfassung |
| In this paper we present a quantitative
comparison between a large data base of medium-scale atmospheric gravity waves (AGWs)
observed by radio interferometry of transionospheric radio sources and the
results of a numerical simulation of the observed effects. The simulation
includes: (i) the propagation and dissipation of AGWs up to ionospheric heights
and (ii) the calculation of the subsequent slant TEC perturbations integrated
along the path to the radio sources. We show that the observed azimuthal
distribution of AGWs can be deeply biased. Predicted results are found to be
consistent with previous extensive observations using radio beacons aboard
geostationary satellites. These observations are rediscussed in view of the
present predictions. |
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