The ionospheric perturbations prior to the Chi-Chi and Chia-Yi earthquakes

Y. J. Chuo; J. Y. Liu; S. A. Pulinets; Y. I. Chen

doi:10.1016/S0264-3707(02)00011-X

The ionospheric perturbations prior to the Chi-Chi and Chia-Yi earthquakes

Y. J. Chuo, J. Y. Liu, S. A. Pulinets, Y. I. Chen

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Abstract

In this paper we analyze the greatest plasma frequency, foF2, named critical frequency, observed by the Chung-Li ionosonde (25.0°N, 121.1°E) during the period of the Chi-Chi (23.87°N, 1 20.75°E) and the Chia-Yi (23.51°E, 120.4°E) earthquakes. The previous 15-day running mean and the associated standard deviation are utilized to construct the upper or lower bound for detecting the seismo-ionospheric perturbations. It is found that the perturbation appeals in 3-4 days prior to the Chi-Chi earthquake as well as 1-3 days prior to the Chia-Yi earthquake.

Original language	English
Pages (from-to)	509-517
Number of pages	9
Journal	Journal of Geodynamics
Volume	33
Issue number	4-5
DOIs	https://doi.org/10.1016/S0264-3707(02)00011-X
State	Published - 2002

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title = "The ionospheric perturbations prior to the Chi-Chi and Chia-Yi earthquakes",

abstract = "In this paper we analyze the greatest plasma frequency, foF2, named critical frequency, observed by the Chung-Li ionosonde (25.0°N, 121.1°E) during the period of the Chi-Chi (23.87°N, 1 20.75°E) and the Chia-Yi (23.51°E, 120.4°E) earthquakes. The previous 15-day running mean and the associated standard deviation are utilized to construct the upper or lower bound for detecting the seismo-ionospheric perturbations. It is found that the perturbation appeals in 3-4 days prior to the Chi-Chi earthquake as well as 1-3 days prior to the Chia-Yi earthquake.",

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AU - Chuo, Y. J.

AU - Liu, J. Y.

AU - Pulinets, S. A.

AU - Chen, Y. I.

PY - 2002

Y1 - 2002

N2 - In this paper we analyze the greatest plasma frequency, foF2, named critical frequency, observed by the Chung-Li ionosonde (25.0°N, 121.1°E) during the period of the Chi-Chi (23.87°N, 1 20.75°E) and the Chia-Yi (23.51°E, 120.4°E) earthquakes. The previous 15-day running mean and the associated standard deviation are utilized to construct the upper or lower bound for detecting the seismo-ionospheric perturbations. It is found that the perturbation appeals in 3-4 days prior to the Chi-Chi earthquake as well as 1-3 days prior to the Chia-Yi earthquake.

AB - In this paper we analyze the greatest plasma frequency, foF2, named critical frequency, observed by the Chung-Li ionosonde (25.0°N, 121.1°E) during the period of the Chi-Chi (23.87°N, 1 20.75°E) and the Chia-Yi (23.51°E, 120.4°E) earthquakes. The previous 15-day running mean and the associated standard deviation are utilized to construct the upper or lower bound for detecting the seismo-ionospheric perturbations. It is found that the perturbation appeals in 3-4 days prior to the Chi-Chi earthquake as well as 1-3 days prior to the Chia-Yi earthquake.

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SP - 509

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JO - Journal of Geodynamics

JF - Journal of Geodynamics

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ER -

The ionospheric perturbations prior to the Chi-Chi and Chia-Yi earthquakes

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