Klymkovych T. Peculiarities of temporal variations of anomalous magnetic field and induction vectors in the Transcarpathian seismic-active trough

Object of study: geomagnetic field and its variations. The investigation aim consist in analysis of anomalous geomagnetic field and induction arrows time changes and determining their connections with seismic activities of Transcarpathian trough. Methods of investigations: statistical, spectral, correlation analysis, mathematical modeling of magnetic field. Equipment: proton magnetometers MV-01, magnetovariational station of LEMAD type. Scientific and applied importance: increasing of reliability of the geomagnetic field and induction arrows anomalous time changes determinations for seismic activity forecasting. Developed methods, algorithms and programs of huge data files of geomagnetic and magnetovariational observations are used in KB IGPh for analysis of observations on Carpathian geodynamic polygon. Methods to distinguish the anomalies can be useful also in magnetic prospecting. Scientific novelty consist in development of efficient method of geomagnetic data separation and method of small amplitude anomalies detection by correlation with sin-function given on asymmetric half-period. Firstly established, that in Transcarpathian trough seismic-tectonic processes may cause not only bay-like anomalies of geomagnetic filed, but prolonged trends, abrupt changes of level and increasing of field variance as well. The space-time relations between anomalous changes of induction arrows parameters and local earthquakes epicenters distribution are detected, as well, as diurnal, annual and of long duration variations of induction arrows caused by exterior sources. Applications: geomagnetism, geodynamic processes monitoring, magnetic prospecting.