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Directional and correlation analysis from the geomagnetic monitoring and seismic data on the Boso Peninsula in 2000

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Abstract

The mathematical technique is developed for cluster analysis of the orientation structure of the vector geophysical fields. In order to solve the problem of revealing correlations between quasi-linear processes, the notion of the correlation with the nonrigid metric of distance is introduced for the vectors generated by the flows of discrete events with a high degree of sparseness in time.

The method is tested on the data from monitoring the magnetic field in a seismically active region of Japan. It is found that the cluster portrait of the orientation structure of the magnetic field is substantially different during quiet and disturbed days. The influence of seismic vibrations of the ground on the results of magnetic measurements is established.

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Correspondence to L. F. Moskovskaya.

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Original Russian Text © L.F. Moskovskaya, 2012, published in Fizika Zemli, 2012, No. 6, pp. 74–89.

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Moskovskaya, L.F. Directional and correlation analysis from the geomagnetic monitoring and seismic data on the Boso Peninsula in 2000. Izv., Phys. Solid Earth 48, 532–546 (2012). https://doi.org/10.1134/S1069351312060043

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