ライブラリ登録: Guest
Begell Digital Portal Begellデジタルライブラリー 電子書籍 ジャーナル 参考文献と会報 リサーチ集
Telecommunications and Radio Engineering
SJR: 0.203 SNIP: 0.44 CiteScore™: 1

ISSN 印刷: 0040-2508
ISSN オンライン: 1943-6009

巻:
巻 79, 2020 巻 78, 2019 巻 77, 2018 巻 76, 2017 巻 75, 2016 巻 74, 2015 巻 73, 2014 巻 72, 2013 巻 71, 2012 巻 70, 2011 巻 69, 2010 巻 68, 2009 巻 67, 2008 巻 66, 2007 巻 65, 2006 巻 64, 2005 巻 63, 2005 巻 62, 2004 巻 61, 2004 巻 60, 2003 巻 59, 2003 巻 58, 2002 巻 57, 2002 巻 56, 2001 巻 55, 2001 巻 54, 2000 巻 53, 1999 巻 52, 1998 巻 51, 1997

Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v71.i18.60
pages 1687-1706

THE IONOSPHERIC PRECURSOR TO THE 2011 MARCH 11 EARTHQUAKE AS BASED ON THE JAPAN-PACIFIC SUBIONOSPHERIC VLF/LF NETWORK OBSERVATION

Masashi Hayakawa
Hayakawa Institute of Seismo Electromagnetics Co. Ltd.(Hi-SEM), The University of Electro-Communications (UEC) Alliance Center #521, Advanced & Wireless and Communications Research Center, UEC, Chofu, Tokyo, 182-8585, Japan
Y. Hobara
Research Station on Seismo Electromagnetics; UEC, Graduate School of Informatics and Engineering, Chofu Tokyo, Japan
A. Rozhnoi
Institute of Physics of the Earth, Russian Academy of Sciences, 10 Gruzinskaya, Moscow 123810, Russia
M. Solovieva
Institute of Physics of the Earth, Russian Academy of Sciences, 10 Gruzinskaya, Moscow 123810, Russia
K. Ohta
Chubu University, 1200 Matsumoto-cho, Kasugai Aichi 487-8501, Japan
J. Izutsu
Chubu University, 1200 Matsumoto-cho, Kasugai Aichi 487-8501, Japan
T. Nakamura
Kochi University, Akebono-cho, Kochi, Japan
Y. Yasuda
Hayakawa Institute of Seismo-Electromagnetics, Co. Ltd., UEC Incubation Center, Chofu Tokyo, Japan
H. Yamaguchi
Earthquake Analysis Laboratory, Information Systems Inc., Kita-aoyama 2-12-42- 305, Minato-ku Tokyo 107-0061, Japan
Y. Kasahara
UEC, Graduate School of Informatics and Engineering, Chofu Tokyo, Japan

要約

By using the network observations of sub-ionospheric VLF/LF signals in Japan and Russia, we found a significant ionospheric perturbation prior to the 2011/3/11 Japan earthquake (EQ). A remarkable decrease was detected in the nighttime amplitude and increase in the dispersion on March 5 and 6, on the paths from NLK (Seattle, USA) to Chofu, Kochi and Kasugai. We found also the anomalies in March 1-6 period and minima in the nighttime amplitude on March 3 and 4 on the path JJI (Miyazaki, Kyushu) - Kamchatka, Russia. We describe perturbations and discuss the relevant geophysical environment. Data are compared with perturbations of many inland EQs, and with the spatial scale of similar oceanic Sumatra EQ in 2004. The generation mechanism of ionospheric perturbations is outlined.


Articles with similar content:

The Features of Radar Observations of Snow Cover from Space-Borne Carriers
Telecommunications and Radio Engineering, Vol.66, 2007, issue 12
S. Ye. Yatsevich, V. B. Yefimov, I. A. Kalmykov
Analysis Schumann Resonance Parameter Variations Associated with Solar Proton Events
Telecommunications and Radio Engineering, Vol.64, 2005, issue 7-12
A. V. Shvets, G. G. Belyaev, A. Yu. Schekotov
Fungal Chitin In Medicine: Prospects for Its Application
International Journal of Medicinal Mushrooms, Vol.3, 2001, issue 2-3
Ludmila I. Burdyukova, Leontij F. Gorovoj
EFFECT OF SOLAR ECLIPSES ON RADIOWAVE PROPAGATION IN THE TROPOSPHERE
Telecommunications and Radio Engineering, Vol.74, 2015, issue 12
I. M. Mytsenko, D. D. Khalameyda
DISTURBANCES OF LOWER IONOSPHERE ABOVE CENTER OF EARTHQUAKE AND ANOMALY IN THE GLOBAL ELECTRO-MAGNETIC RESONANCE SIGNAL - PART 1: MODELS OF IONOSPHERE
Telecommunications and Radio Engineering, Vol.74, 2015, issue 11
A. P. Nickolaenko, Masashi Hayakawa