DIRECTION FINDING OF PRECURSORY RADIO EMISSIONS ASSOCIATED WITH EARTHQUAKES - A PROPOSAL

被引：15

作者：

HAYAKAWA, M

TOMIZAWA, I

OHTA, K

SHIMAKURA, S

FUJINAWA, Y

TAKAHASHI, K

YOSHINO, T

机构：

[1] CHUBU UNIV,DEPT ELECTR ENGN,KASUGAI,AICHI 487,JAPAN

[2] NATL RES INST EARTH SCI & DISASTER PREVENT,TSUKUBA,IBARAKI 305,JAPAN

[3] COMMUN RES LABS,KOGANEI,TOKYO 184,JAPAN

[4] CHIBA UNIV,DEPT ELECT ENGN,CHIBA 260,JAPAN

来源：

PHYSICS OF THE EARTH AND PLANETARY INTERIORS | 1993年 / 77卷 / 1-2期

关键词：

D O I：

10.1016/0031-9201(93)90038-B

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：

The direction finding of Precursory radio emissions associated with earthquakes is proposed, based on the simultaneous measurement of the waveforms of multiple electric and magnetic field components at ELF (1.525 kHz +/- 5 Hz) and ULF (0-10 Hz) at a few stations. This measurement enables us to determine the wave mode of the observed signal (for example, its direction of arrival) by measuring such parameters as the wave impedance, wave polarization and wave coherence. From these observations we hope to be able to obtain the first convincing evidence on the precursory emissions of earthquakes.

引用

页码：127 / 135

页数：9

共 30 条

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