Surface strain rate colour map of the Tatra Mountains region (Slovakia) based on GNSS data

Geologica Carpathica

Papčo Juraj¹  Pohánka Vladimír²  Brimich Ladislav²  Bezák Vladimír²  Bednárik Martin²  Kohút Igor² 

[1] Department of Theoretical Geodesy, Faculty of Civil Engineering, Slovak University of Technology, Radlinského 11, 813 68 Bratislava, Slovakia;Earth Science Institute, Slovak Academy of Sciences, Dúbravská cesta 9, P.O. Box 106, 840 05 Bratislava, Slovakia;

关键词: GNSS;    surface deformation;    tensor field visualization;    three-dimensional colour function;    Tatra Mountains;   

DOI  :  10.1515/geoca-2016-0032

来源: DOAJ

【 摘 要 】

The surface deformation of the Tatra Mountains region in Western Carpathians can nowadays be studied directly thanks to precise geodetic measurements using the GNSS. The strain or stress tensor field is, however, a rather complex “data structure” difficult to present legibly and with sufficient resolution in the form of a classical map. A novel and promising approach to the solution of this problem is coding the three principal strain or stress values into the three colour channels (red, green, blue) of an RGB colour. In our previous study, the colour depended on the stress tensor shape descriptors. In the current study, the adapted colouring scheme uses a subset of shape descriptors common to stress and strain, which differ only in the scaling factor. In this manner, we generate the colour map of the surface strain rate field, where the colour of each grid point carries the information about the shape of the strain rate tensor at that point. The resulting strain rate colour map can be displayed simultaneously with the map of the faults or elevations and be easily checked for the data or interpolation method errors and incompatibility with the geophysical and geological expectations.

【 授权许可】

Unknown