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| Titel |
Investigation of TEC and VLF space measurements associated to L'Aquila (Italy) earthquakes |
| VerfasserIn |
G. Stangl, M. Y. Boudjada, P. F. Biagi, S. Krauss, A. Maier, K. Schwingenschuh, E. Al-Haddad, M. Parrot, W. Voller |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 11, no. 4 ; Nr. 11, no. 4 (2011-04-01), S.1019-1024 |
| Datensatznummer |
250009334
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| Publikation (Nr.) |
 copernicus.org/nhess-11-1019-2011.pdf |
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| Zusammenfassung |
| In this study, we report on Total Electron Content (TEC) and Very
Low Frequency (VLF) space measurements derived from Global
Positioning System (GPS) and DEMETER satellites, respectively. These
measurements are associated with the earthquake (EQ) of a magnitude
of 6.3, which occurred on 6 April 2009, in L'Aquila (Italy). Anomaly
features are derived from the analysis of TEC and VLF observations
recorded two weeks before and after the seismic event occurrence. A
TEC map with an interpolated regional pixel resolution of
1° × 1° × 15 min in latitude, longitude and
time was generated, allowing for the checking of a possible presence
of disturbances over the L'Aquila region. This analysis is combined
with the study of the time profile associated to the VLF flux
density variations recorded by the Instrument Champ Electrique (ICE)
experiment on-board DEMETER satellite. We discuss, on the one hand,
the combination efficiency of the electronic density and the VLF
electromagnetic measurements and, on the other hand, the difficulty
to distinguish between global effects and regional ones related to
the earthquake. |
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