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| Titel |
RST analysis of MSG-SEVIRI TIR radiances at the time of the Abruzzo 6 April 2009 earthquake |
| VerfasserIn |
N. Genzano, C. Aliano, R. Corrado, C. Filizzola, M. Lisi, G. Mazzeo, R. Paciello, N. Pergola, V. Tramutoli |
| 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 ; 9, no. 6 ; Nr. 9, no. 6 (2009-12-11), S.2073-2084 |
| Datensatznummer |
250007074
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| Publikation (Nr.) |
 copernicus.org/nhess-9-2073-2009.pdf |
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| Zusammenfassung |
Space-time fluctuations of Earth's emitted Thermal Infrared (TIR) radiation
have been observed from satellite months to weeks before earthquakes
occurrence.
The general RST approach has been proposed in order to discriminate normal
(i.e. related to the change of natural factor and/or observation conditions)
TIR signal fluctuations from anomalous signal transient possibly associated
to earthquake occurrence. In this work RST approach is applied to the Abruzzo
6 April 2009 event (ML=5.8) by using for the first time MSG-SEVIRI
(Meteosat Second Generation -Spinning Enhanced Visible and Infrared Imager)
thermal infrared observations. A validation/confutation analysis has been
performed in order to verify the presence/absence of anomalous space-time TIR
transients in the presence/absence of significant seismic activity.
March–April 2009 has been analyzed for validation purposes. Relatively
unperturbed periods (no earthquakes with ML≥5) have been taken for
confutation. A specific TIR anomalies space-time persistence analysis as well
as a cloud coverage distribution test have been introduced in order to
eliminate artifacts and outliers both in the validation and confutation
phases. Preliminary results show clear differences in TIR anomalies
occurrence during the periods used for validation and confutation purposes.
Quite clear TIR anomalies appear also to mark main tectonic lines related to
the preparatory phases of others, low magnitude (ML~4) earthquakes,
occurred in the area. |
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