Observations and simulations of seismoionospheric GPS total electron content anomalies before the 12 January 2010 M7 Haiti earthquake
Jann-Yenq Liu,Huijun Le,Huijun Le,Yuh Ing Chen,Chia-Hung Chen,Libo Liu,Weixing Wan,Y. Z. Su,Yang Yi Sun,Chien Hung Lin,M. Q. Chen +10 more
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In this article, the total electron content (TEC) of the global ionosphere map (GIM) is used to detect seismoionospheric anomalies associated with the 12 January 2010 M7 Haiti earthquake, and an ionospheric model is applied to simulate the detected anomalies.Abstract:
[1] In this paper, the total electron content (TEC) of the global ionosphere map (GIM) is used to detect seismoionospheric anomalies associated with the 12 January 2010 M7 Haiti earthquake, and an ionospheric model is applied to simulate the detected anomalies. The GIM temporal variation shows that the TEC over the epicenter significantly enhances on 11 January 2010, 1 day before the earthquake. The latitude-time-TEC (LTT) plots reveal three anomalies: (1) the northern crest of equatorial ionization anomaly (EIA) moves poleward, (2) the TECs at the epicenter and its conjugate increase, and (3) the TECs at two dense bands in the midlatitude ionosphere of 35°N and 60°S further enhance. The spatial analysis demonstrates that the TEC enhancement anomaly appears specifically and persistently in a small region of the northern epicenter area. The simulation well reproduces the three GIM TEC anomalies, which indicate that the dynamoelectric field of the ionospheric plasma fountain might have been perturbed by seismoelectric signals generated around the epicenter during the earthquake preparation period.read more
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Detecting ionospheric TEC perturbations caused by natural hazards using a global network of GPS receivers: The Tohoku case study
Attila Komjathy,David A. Galvan,Philip Stephens,Mark D. Butala,Vardan Akopian,Brian Wilson,Olga P. Verkhoglyadova,Anthony J. Mannucci,Michael P. Hickey +8 more
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References
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Book
Nrlmsise-00 Empirical Model of the Atmosphere: Statistical Comparisons and Scientific Issues
TL;DR: The new NRLMSISE-00 model and the associated NRLMSIS database now include the following data: (1) total mass density from satellite accelerometers and from orbit determination, including the Jacchia and Barlier data; (2) temperature from incoherent scatter radar, and; (3) molecular oxygen number density, [O2], from solar ultraviolet occultation aboard the Solar Maximum Mission (SMM).
Journal ArticleDOI
Estimation of the size of earthquake preparation zones
TL;DR: In this article, an approximate solution of the problem for a soft elastic inclusion in an elastic half-space is presented. But the authors assume that the moduli of the inclusion differ slightly from those of the surrounding medium (by no more than 30%).
Book
Ionospheric precursors of earthquakes
Sergey Pulinets,K. A. Boyarchuk +1 more
TL;DR: The basic components of Seismo-Ionospheric coupling are discussed in this article, as seen from the ground and from space, as well as from the Troposphere and the Earth's magnetic field.