We used GPS to measure rates of active tectonic deformation in the Adria-Eurasia collision zone. We quantified the kinematics of the Adria microplate, and have for the first time used GPS data from the outcrops of Adria on the Istria peninsula. Motion of Adriatic microplate according to the stable Eurasia plate was derived on the basis of computed velocity vectors of GPS sites, located at the Adriatic plate. According to the velocities from sites, located at Adria plate we were able to define the most accurate Euler pole parameters of Adria microplate. With the computed Euler pole parameters of Adria motion, we found out that the territory of Slovenia is being shortend with the velocity rate app. 5mm/year in the NNW-SSE direction. The results obtained show also that northern part of Adria is moving according to stable Eurasia as a rigid plate.
COBISS.SI-ID: 4730465
The global geospatial community is investing substantial effort in providing tools for geospatial data-quality information analysis and systematizing the criteria for geospatial data quality. The importance of these activities is increasing, especially in the last decade, which has witnessed an enormous expansion of geospatial data use in general and especially among mass users. Although geospatial data producers are striving to define and present data-quality standards to users and users increasingly need to assess the fitness for use of the data, the success of these activities is still far from what is expected or required. As a consequence, neglect or misunderstanding of data quality among users results in misuse or risks. This paper presents an aid in spatio-temporal quality evaluation through the use of spatio-temporal evaluation matrices (STEM) and the index of spatiotemporal anticipations (INSTANT) matrices. With the help of these two simple tools, geospatial data producers can systematically categorize and visualize the granularity of their spatio-temporal data, and users can present their requirements in the same way using business intelligence principles and a Web 2.0 approach. The basic principles and some examples are presented in the paper, and potential further applied research activities are briefly described.
COBISS.SI-ID: 5100641
The article addresses automatic building extraction from a stereo pair of IKONOS images in suburban areas. Automatic photogrammetric methods of image matching were used to generate a digital surface model (DSM) and a digital elevation model. In further processing, single-image methods were used. The orthophotos of individual bands were created. The initial building mask was generated from the calculated normalized DSM (nDSM). The calculated normalized difference vegetation index and the road data extracted from the existing topographical database were used to remove vegetation and traffic surfaces. The mask was further improved with our own combination of methods based on non-linear diffusion filtering, unsupervised classification, colour segmentation and region growing. The final mask was vectorized using the Hough transform.
COBISS.SI-ID: 5728097
Acquisition and expropriation of real property for the public benefit in Slovenia Public acquisition and expropriation are the feasibilities of the state or local governments to acquire real property, where the increased benefit for the society is legally recognized. In spite of the commitment of market economies to the inviolability of private property, both approaches are well known in market economies and are topics of several international discussions. In particular this has been of importance in the former planned economies, where private ownership has become a fundamental issue. This paper reviews the possible ways of real property acquisition with the stated purpose of establishing public benefit in Slovenia. The first step in the process of real property acquisition for the public benefit in Slovenia is real property purchase, where an agreement for compensation is to be achieved. Expropriation is used as the last resort where a real property is acquired without the consent of its owner and the compensation is usually based on the economic loss as the direct effect from the real property acquisition.
COBISS.SI-ID: 6086753
In each point of geodetic network kinematic quantities are considered: normal strain, shear strain and rotation. They are computed from strain and rotation tensors on the basis of known point displacement vector. Deformation analysis requires the appropriate treatment of kinematic quantities, too. Empirical results have shown that statistical properties are strongly related to the orientation in single point and local geometry of the geodetic network. Based on the known probability distribution of kinematic quantities the confidence areas for each quantity in certain point can be defined.
COBISS.SI-ID: 4805473