Results 21 to 30 of about 11,668 (163)

Ionospheric TEC and plasma anomalies possibly associated with the 14 July 2019 Mw7.2 Indonesia Laiwui earthquake, from analysis of GPS and CSES data

Earth and Planetary Physics, 2022
This study presents signatures of seismo-ionospheric perturbations possibly related to the 14 July 2019 \begin{document}$ {M}_{w} $\end{document}7.2 Laiwui earthquake, detected by a cross-validation analysis of total electron content (TEC) data of the ...
YuanZheng Wen, Dan Tao, GuangXue Wang, JiaYi Zong, JinBin Cao, Roberto Battiston, ZhiMa ZeRen, XuHui Shen   +7 more
doaj   +1 more source

Influence of Lightning on the Observation of Seismic Electromagnetic Wave Anomalies

Terrestrial, Atmospheric and Oceanic Sciences, 2007
For two decades, many researchers have been claiming that pre-seismic electromagnetic phenomena may be useful in short-term earthquake prediction. Despite much effort, however, the relationship between anomalous electromagnetic signals and earthquakes ...
Jun Izutsu
doaj   +1 more source

Laboratory investigation of coupled electrical interaction of fracturing rock with gases

Earth, Planets and Space, 2021
In the coupled electric interaction of rock fractures and gas invasion, that is, when gases interact with newly created crack surfaces, the unpaired electrons within the rock crystal defects are thermally stimulated, released into the crack due to the ...
Yuji Enomoto, Tsuneaki Yamabe, Shigeki Sugiura, Hitoshi Kondo   +3 more
doaj   +1 more source

Ionospheric Effects of Natural Hazards in Geophysics: From Single Examples to Statistical Studies Applied to M5.5+ Earthquakes

Proceedings, 2022
Geophysical natural hazards, such as earthquakes and volcano eruptions, can have catastrophic effects on the population depending on the location and quality of construction.
Dedalo Marchetti, Kaiguang Zhu, Rui Yan, Zeren Zhima, Xuhui Shen, Wenqi Chen, Yuqi Cheng, Mengxuan Fan, Ting Wang, Jiami Wen, Donghua Zhang, Hanshuo Zhang, Yiqun Zhang   +12 more
doaj   +1 more source

An interferometer experiment to explore the aspect angle dependence of stimulated electromagnetic emission spectra [PDF]

, 2005
International audienceWhen the Earth's ionosphere is irradiated by a radiofrequency (RF) electromagnetic wave of sufficiently high power density and tuned to match a natural E- or F-region plasma frequency, ionospheric magnetoionic wave modes may be ...
Khudukon, B. Z., Rietveld, Michael T., Yurik, R.Yu, Brekke, A., Belyey, Tereshchenko, Tereshchenko, E., Khudukon, B., Rietveld, M., Hoz, C. La, Belyey, Vasyl, Tereshchenko, E.D., Hagfors, Yurik, R. Yu., Khudukon, Yu. Yurik, Heinselman, C., Grill, Brekke, Belyey, V., Isham, B., Rietveld, Hagfors, T., Heinselman, Brekke, Asgeir, Rietveld, M. T., La Hoz, C., Isham, null La Hoz, Grill, M., Yurik, Yu., null null, Yurik, R. Yu., Yurik, R., La Hoz, Cesar, Tereshchenko, E. D., La Hoz   +36 more
core   +1 more source

Magnetotelluric monitoring of geodynamic processes

Annals of Geophysics, 1997
Electromagnetic (EM) monitoring of geodynamic processes can be based on the two different seismo-electrical phenomena: a change in resistivity of some geological cross-sections and a generation of EM fields of internal (geodynamic) origin.
V. I. Odintsov, Y. I. Kuksa, S. D. Karinskij, B. S. Svetov   +3 more
doaj   +1 more source

Analyzing electromagnetic structures with curved boundaries on Cartesian FDTD meshes [PDF]

, 1998
In this paper, a new finite-difference time-domain (FDTD) algorithm is investigated to analyze electromagnetic structures with curved boundaries using a Cartesian coordinate system. The new algorithm is based on a nonorthogonal FDTD method. However, only
Railton, CJ, Hao, Y
core   +1 more source

The effect of earth tides as observed in seismo-electromagnetic precursory signals [PDF]

Natural Hazards and Earth System Sciences, 2009
Studies on the effect of earth tides in triggering earthquakes (EQs) had a great progress in recent years, which has provided convincing evidence of earth tides in EQ triggering.
M. Hayakawa, Y. Sue, T. Nakamura
doaj  

Multi-component ground-based observation of ULF waves: goals and methods

Annals of Geophysics, 1998
A revival of the combined magnetic and telluric electric measurements at magnetic observatories is suggested.A number of problems, where such observations might be very helpful, are outlined: 1) the account for the resonance structure of the ULF field ...
E. N. Fedorov, M. De Lauretis, S. Anisimov, M. Vellante, V. A. Pilipenko, U. Villante   +5 more
doaj   +1 more source

The Data Comparison of Electron Density Between CSES and DEMETER Satellite, Swarm Constellation and IRI Model

Earth and Space Science, 2021
The China Seismo‐Electromagnetic Satellite (CSES), which is also called ZhangHeng‐1 (ZH‐1), was successfully launched on February 2, 2018. Evaluating the quality of observation data is imperative for the satellite mission and users.
Jing Liu, Yibing Guan, Xuemin Zhang, Xuhui Shen   +3 more
doaj   +1 more source