engleski

Multi-Resolution Modeling of the Tufa Formation Dynamic using Close-Range Photogrammetry, Handheld 3D Scanner and Terrestrial Laser Scanner

Advances in geospatial technologies (GST) have revolutionized the ability to quantify spatio- temporal changes in various geomorphological forms at different scales. One of the most complex geomorphological forms are tufa and travertine cascades whose evolution is the subject of numerous research in various scientificfields. In this paper, we are presenting a new methodological framework for analyzing tufa formation dynamic(TFD) at three levels of research (macro- meso-micro) using the close-range photogrammetry (CRP) method, handheld 3D scanner, and terrestrial laser scanner (TLS). The results, 3D models and digital elevation models(DEMs), of the first (reference) measurement at three levels of research, are presented in this paper. Referencemodels were generated using Agisoft Metashape, Artec Studio Professional 15, and SCENE software.Measurements were done in an artificial tufa tunnel, located within the Jaruga, the second oldest hydroelectricpower plant in the world constructed within National Park Krka, Croatia. This tunnel is a specific tufa-forming environment. The subject of the next paper will be the comparison of interval tufa 3D tufa models at three levels of research and the calculation of volumetric (mm3 a-1) and linear (mm a−1) tufa growth rates after two years of exposure to the Krka River. The presented methodological framework will expand the knowledge about TFD within this specific depositional sub-environment and can be applied in the dynamic formationanalysis of other hydroprecipitates.

Tufa Formation Dynamic, Artec Eva, Faro Focus M70, Close-Range Photogrammetry, NP Krka.

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