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| Titel |
Comparative study on earthquake and ground based transmitter induced radiation belt electron precipitation at middle latitudes |
| VerfasserIn |
N. F. Sidiropoulos, G. Anagnostopoulos, V. Rigas |
| 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. 7 ; Nr. 11, no. 7 (2011-07-08), S.1901-1913 |
| Datensatznummer |
250009560
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| Publikation (Nr.) |
 copernicus.org/nhess-11-1901-2011.pdf |
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| Zusammenfassung |
| We examined (peak-to-background flux ratio p/b > 20) energetic electron
bursts in the presence of VLF activity, as observed from the DEMETER
satellite at low altitudes (~700 km). Our statistical analysis of
measurements during two 6-month periods suggests that: (a) the powerful
transmitter NWC causes the strongest effects on the inner radiation belts
in comparison with other ground-based VLF transmitters, (b) the NWC
transmitter was responsible for only ~1.5 % of total electron bursts
examined during the 6-month period (1 July 2008 to 31 December 2008), (c) VLF transmitter-related electron bursts are
accompanied by the presence of a narrow band emission centered at the
radiating frequency emission, whereas the earthquake-related electron bursts
are accompanied by the presence of broadband emissions from a few kHz to
>20 KHz, (d) daytime events are less preferable than nighttime events, but this
asymmetry was found to be less evident when the powerful transmitter NWC was
turned off and (d) seismic activity most probably dominated the
electromagnetic interactions producing the electron precipitation at middle
latitudes. The results of this study support the proposal that the
detection of radiation belt electron precipitation, besides other kinds of
studies, is a useful tool for earthquake prediction research. |
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