Crustial Deformation Analysis in the International Center on Recent Crustial Movements

Abstract

The transformation of the displacement vectors due to the surface movements into the parameters of deformations is one of the possible tool for better expressions of dynamical properties for recent movement studies. The different kinds of such a transformation are discussed. In addition to the simple determination within triangles, the approximation of displacements and parameters of deformations are given . The procedure for data processing in 2-dimensional or 3-dimensional expression, either in simple way or in kind of regular, rectangular grids, used for data processing in the International Center on Recent Crustal Movements (ICRCM) is described. The 3-dimensiodal expression of phenomena is presented as well, with limitations of using the results of geodetic methods only. In general, for the approach to modelling of displacements and deformations, the whole combination of geodetical-geophysical methods should be applied.