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Open AccessArticle

Combined Space–Time Analysis of Geodetic and Geological Surveys for Evaluation of the Reliability of the Position of Points in the Geodynamic Network of the City of Zagreb

1
Faculty of Geodesy, University of Zagreb, Kaciceva 26, 10 000 Zagreb, Croatia
2
Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb, Pierottieva 6, 10000 Zagreb, Croatia
*
Author to whom correspondence should be addressed.
Geosciences 2020, 10(12), 498; https://doi.org/10.3390/geosciences10120498
Received: 23 November 2020 / Revised: 3 December 2020 / Accepted: 8 December 2020 / Published: 11 December 2020
(This article belongs to the Special Issue Modern Surveying and Geophysical Methods for Soil and Rock)
This paper describes the long-standing interdisciplinary geodynamic research for the wider Zagreb area, the most seismically active area of the continental part of the Republic of Croatia, extending over an area of around 800 km2. As a result of the research, which is based on geodetic and geological field measurements, a unique interdisciplinary movement model of the surface layers of the Earth’s crust for the project area is created. The analysis of survey data has determined the continuous tectonic activity of the wider Zagreb area. In the past 18 years, a total of 10 GPS measurement campaigns have been conducted. For each campaign, the velocities of geodynamic network points were calculated, and the cumulative velocity rate was determined from all measurement campaigns for the entire period of observations using GAMIT/GLOBK software. Displacements at individual measuring points of the network, throughout research, vary widely and depend on its location within the local geologic structural framework and regional tectonic movements. These displacements in detail represent a measurable insight into the tectonic activity of the area of research. Therefore, in this paper, special attention is given to the analysis and explanation of these variations in the displacements of the individual geodynamic points, even indicating the questionable quality of location selection for some points. In this way, we seek to explain the causes and mechanisms of such displacements. The results presented in this paper represent the preseismic area condition and further can be used in coseismic 2020 earthquake displacement analysis. View Full-Text
Keywords: geodynamic research; geodetic GPS measurements; geologic measurements; movement model; earthquakes geodynamic research; geodetic GPS measurements; geologic measurements; movement model; earthquakes
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MDPI and ACS Style

Đapo, A.; Pavasović, M.; Pribičević, B.; Prelogović, E. Combined Space–Time Analysis of Geodetic and Geological Surveys for Evaluation of the Reliability of the Position of Points in the Geodynamic Network of the City of Zagreb. Geosciences 2020, 10, 498. https://doi.org/10.3390/geosciences10120498

AMA Style

Đapo A, Pavasović M, Pribičević B, Prelogović E. Combined Space–Time Analysis of Geodetic and Geological Surveys for Evaluation of the Reliability of the Position of Points in the Geodynamic Network of the City of Zagreb. Geosciences. 2020; 10(12):498. https://doi.org/10.3390/geosciences10120498

Chicago/Turabian Style

Đapo, Almin; Pavasović, Marko; Pribičević, Boško; Prelogović, Eduard. 2020. "Combined Space–Time Analysis of Geodetic and Geological Surveys for Evaluation of the Reliability of the Position of Points in the Geodynamic Network of the City of Zagreb" Geosciences 10, no. 12: 498. https://doi.org/10.3390/geosciences10120498

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