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| Titel |
On the localization of infrasound sources with stratospheric arrivals |
| VerfasserIn |
A. Van Geyt, L. G. Evers |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250063261
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| Zusammenfassung |
| The purpose of this study is to investigate how accurate and with what tools, the localization of a transient acoustic event can be done, starting from measured infrasound signals from stratospheric refractions. The tools to be used are until now, standard beamforming with Fisher Ratio statistics , theo- retical beamforming accuracy (Cramer Rao) and ray tracing backwards in time with winds turned around. This raytracing is done with one vertical atmosphere profile or with a three dimensional atmosphere profile. Amplitudes based on calculated Jacobians along the rays (using a generated set of 12 equations for the 3D Jacobian) and the possible influence of small scale structure of the atmosphere profile on localization will also be considered. |
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