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Utjecaj metoda interpolacije na kvalitetu digitalnih modela reljefa za geomorfometrijske analize (CROSBI ID 221939)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Šiljeg, Ante ; Lozić, Sanja ; Radoš, Denis Utjecaj metoda interpolacije na kvalitetu digitalnih modela reljefa za geomorfometrijske analize // Tehnički vjesnik : znanstveno-stručni časopis tehničkih fakulteta Sveučilišta u Osijeku, 22 (2015), 5; 1149-1156. doi: 10.17559/TV-20131010223216

Podaci o odgovornosti

Šiljeg, Ante ; Lozić, Sanja ; Radoš, Denis

engleski

Utjecaj metoda interpolacije na kvalitetu digitalnih modela reljefa za geomorfometrijske analize

Despite the modern technological advancements, contemporary methods of data gathering still rely on point samples, which means they feature a precise variable info only on specific x, y - coordinates. In order to get a continual representation of a surface necessary for research, it is necessary to approximate various data values on those surfaces which have not been sampled by using various methods of interpolation. The main aim of this research is to evaluate two different methods of interpolation based on the quality of digital terrain models used for geomorphometric analyses. For the purposes of developing and comparing these methods, a set of elevation data was attained by vectorization of contour lines from HOK. Two methods of interpolation were tested: triangulated irregular network (TIN) and ANUDEM (Topo to Raster). In order to get a more appropriate method, the research employed eight statistical parameters, various graphical representations (both two- and three-dimensional) and geomorphometric parameter of slope inclination. The research shows that ANUDEM is a better method for geomorphometric analyses than TIN is. After the analysis of geomorphometric parameters (slope), the conclusion is that there are no significant differences between the digital terrain models developed on the bases of different sets of elevation data.

digitalni model reljefa; HOK; metode interpolacije; srednja kvadratna pogreška; vektorizacija

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Podaci o izdanju

22 (5)

2015.

1149-1156

objavljeno

1330-3651

10.17559/TV-20131010223216

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