Ionospheric perturbations linked to a very powerful seismic event

被引：74

作者：

Hobara, Y ^{[1
]}

Parrot, M ^{[1
]}

机构：

[1] CNRS, LPCE, F-45071 Orleans, France

来源：

JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS | 2005年 / 67卷 / 07期

关键词：

ionospheric perturbation; earthquake; ionospheric sounding; F-region;

D O I：

10.1016/j.jastp.2005.02.006

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Ionospheric anomalies in association with the powerful Hachinohe earthquake (M = 8.3) are derived using foF2 (F2 layer 0-mode critical frequency) records from worldwide ionospheric stations. The results show that meaningful decreases in foF2 are identified only at several ionospheric stations near the epicenter, indicating that the anomalies extend to about 1500 km from the epicenter. These anomalies are observed a couple of days before and/or after the main shock and the duration of each anomaly is one-day. The anomalies occur predominantly during daytime. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：677 / 685

页数：9

共 17 条

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[2]

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