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| Titel |
The neutral temperature in the ionospheric dynamo region and the ionospheric F region density during Wenchuan and Pingtung Doublet earthquakes |
| VerfasserIn |
Y. Y. Sun, K.-I. Oyama, J. Y. Liu, H. K. Jhuang, C. Z. Cheng |
| 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. 6 ; Nr. 11, no. 6 (2011-06-21), S.1759-1768 |
| Datensatznummer |
250009494
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| Publikation (Nr.) |
 copernicus.org/nhess-11-1759-2011.pdf |
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| Zusammenfassung |
| One of the possible candidates which modifies the ionosphere before large
earthquake is electric field. We presume that the electric field associated
with large earthquakes is generated in the ionosphere dynamo region (100–120 km).
This paper tries to identify the evidence of the contribution of the
neutral atmosphere in the dynamo region. The relationship between the critical
frequency at the F2 peak (foF2) and the height profile of the neutral
atmosphere temperature was studied for two large earthquakes: Wenchuan,
2008 and Pingtung Doublet, 2006. It is found that the wave amplitude of the
vertical wavelength 20–30 km which is usually superposed on the height
profile of the neutral atmosphere temperature enhances when the foF2
increases. The correlation between the wave amplitude and foF2 is found
better along a longitudinal direction than along latitude direction. |
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