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| Titel |
Ionospheric anomaly due to seismic activities – Part 2: Evidence from D-layer preparation and disappearance times |
| VerfasserIn |
S. K. Chakrabarti, S. Sasmal, S. Chakrabarti |
| 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 ; 10, no. 8 ; Nr. 10, no. 8 (2010-08-25), S.1751-1757 |
| Datensatznummer |
250008349
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| Publikation (Nr.) |
 copernicus.org/nhess-10-1751-2010.pdf |
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| Zusammenfassung |
| We show evidences for anomalous ionospheric behaviour in the signal of Indian
navy VLF transmitting station named VTX due to earthquakes in the South Asian
region. We concentrate on the variation of the D-layer preparation time
(DLPT) and D-layer disappearance time (DLDT) in a period of sixteen months
and study their average behaviors. We identify those days in which DLPT and
DLDT exhibit significant deviations. Separately, we compute the energy
release by earthquakes during this period and show that "anomalous VLF"
days are associated with anomalous energy release. We find that the anomaly
and the deviation of DLPT and DLDTs from the mean are linearly correlated. We
discuss the predictability in this approach and compare with the terminator
shift approach using the same set of data. |
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