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Título del libro: 7th International Symposium On Electromagnetic Compatibility And Electromagnetic Ecology The Proceedings, Emceco 2007
Título del capítulo: Observation of ULF geomagnetic anomalies at tlamacas station, volcano Popocatepetl, in 2005

Autores UNAM:
ANATOLIY KOTSARENKO; HECTOR ROMAN PEREZ ENRIQUEZ; JOSE LOPEZ CRUZ ABEYRO;
Autores externos:

Idioma:

Año de publicación:
2007
Palabras clave:

Electric inverters; Electromagnetic compatibility; Electromagnetism; Financial data processing; Geomagnetism; Landforms; Magnetic materials; Magnetism; Magnetometers; Active volcanoes; Electromagnetic (EM); Flux-gate magnetometers; Fractal index; Geomagnetic activities; Geomagnetic data; Geomagnetic pulsations; International symposium; Reference stations; Sampling rate (SR); Volcanic origin; Volcanoes


Resumen:

First results of ULF geomagnetic anomalies observed at the Tlamacas station (98° 37' 41" W., 19° 04' 01" N) located at 4 km near the volcano Popocatepetl (active volcano, 98.62W, 19.02N) for the period March-July, 2005 and their analysis are presented. The geomagnetic data were collected by a 3-axial fluxgate magnetometer designed at UCLA, (1 Hz sampling rate frequency, GPS). Our analysis reveals some anomalies, which are suspected to be generated by the local volcanic origin: the EM background in the vicinity of the volcano is significantly noisier than in other reference stations; the sporadic strong noise-like geomagnetic activity observed in the H-component; some geomagnetic pulsations (without preferred polarization) observed only at the Tlamacas station. Also the dynamics of the geomagnetic fractal index for the Tlamacas station in a comparison with the reference station points out to the some changes in critical processes, which may occur in the vicinity of the volcano. © 2007 IEEE.


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