Mapping of horizontal crustal movements in Europe based on data of EPN service

: pp.63-72
Institute of Geodesy and Geoinformatics
University of Environmental and Life Sciences

Contemporary geodynamic investigations on a global and regional scale are being realized by network of permanent GNSS stations distributed all over the Earth. The Continental EPN (EUREF Permanent Network) is a European network of 200 permanent stations and the main assignment of EPN is the maintenance of ETRF89. One from many available products as part of project “EPN Coordinate Time Series Analysis Special Project” are components of the velocity vectors of EPN stations. The data, which are gathered by the permanent stations and transfered  to analysis centres, allow to create weekly combined EPN solutions. They are the basis for the estimation of coordinates and velocities for each of the EPN stations. The analysis, interpretation and visualization of motion velocity vectors of permanent stations can be used for different interdisciplinary research, especially for locally geodynamic investigations. The main aim of the elaboration was to find a correlation between velocity fields of EPN stations and the tectonics of Europe. Based on the geological maps, major tectonic structures have been distinguished. For each unit the continuous velocity field has been developed by means of kriging’s method of interpolation implemented in Surfer software. Moreover, to establish the areas of homogenous changes, the k-means method of cluster analysis technique was used. One of the research stages was to find the answer to the question about possibility to determine average velocity vector of motion for each tectonic unit, which will be illustrating mobility of the whole tectonic structure.

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