Abstract
Abstract. Multidisciplinary research of surface geodynamic processes is important for understanding mechanisms that lead to sudden release of accumulated strain energy, i.e. earthquakes. It requires development of an original scientific approach which combines data from various geosciences such as geodesy, geology and seismology. This implies that each geoscience contributes to a better understanding by providing specific direct or indirect information on activity (spatial movements) and properties of seismogenic sources (faults). In recent years, new and accessible sources and types of geoinformation have greatly enhanced, enabling a more comprehensive investigation of ongoing geodynamic activity on faults and, therefore, improve our ability to develop approaches to assess and mitigate the seismic hazard and risk within the earthquake-prone areas. In this paper, we seek to identify the geoinformation required to improve the current knowledge on regional and local geodynamic processes in the Republic of Croatia. Focusing on the complementarity of geodetic, geological and seismological data, we discuss possible sources of the diverse sets of site-specific geospatial data. Examples include: ground/surface movement observations with Global Navigational Satellite Systems (GNSS) and Satellite Radar Interferometry (InSAR); data about historical and instrumental seismicity (e.g. focal mechanism solutions, number of earthquakes, b-value, etc.); fault location, fault geometrical properties and information on their neotectonic activity, paleoseismological data, etc. Challenges regarding the integrated use of these data, such as heterogeneity of data sources, access protocols, metadata standards, data quality, up-to-dateness, and other limitations are also addressed.
Highlights
Geodynamics deals with the processes occurring in the Earth’s interior, as regards their effects on the crust and its superficial zone
A range of techniques exist in geodesy to measure the crustal deformations that are associated with plate motion and active faults
Other available sources of continuous (permanent) GNSS (cGNSS) results on the territory of Croatia are derived velocity and time series solutions on EUREF network provided as position solutions (SINEX format) based on five EUREF Permanent Network (EPN) permanent stations located on the Croatian territory: CAKO00HRV (Čakovec), POZE00HRV (Požega), PORE00HRV (Poreč), ZADA00HRV (Zadar) and DUB200HRV (Dubrovnik)
Summary
Geodynamics deals with the processes occurring in the Earth’s interior, as regards their effects on the crust and its superficial zone. Geodesy enables the collection of geometric information on the distribution of Earth's stress and strain on the global, regional and local level through observations in exclusive time period with respect to reference frame For this reason, geodetic research represents an ideal addition to geological and seismological results when examining and characterizing recent tectonic movements in the research area. The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XLII-3/W8, 2019 Gi4DM 2019 – GeoInformation for Disaster Management, 3–6 September 2019, Prague, Czech Republic stable Eurasian plate (2-5 mm/yr., e.g., Grenerczy et al, 2005; Bennett et al, 2008; Weber et al, 2010) is reflected through strain accumulation and distribution of tectonic activity along the margins of the Adria microplate, which is due to differential stress distribution in the Earth's crust accompanied by seismic activity, i.e. earthquakes. Focusing on the complementarity of geodetic, geological and seismological data, we complete the paper with the discussion of challenges regarding their integrated use, such as heterogeneity of data sources, access protocols, data standards, data quality, up-to-dateness and other limitations
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