Original scientific paper

Bathymetric Measures of the Lakes Skradinski Buk

Ante Šiljeg orcid.org/0000-0001-6332-174X ; Department of Geography, University of Zadar, Zadar, Croatia
Mladen Jurišić orcid.org/0000-0002-8105-6983 ; Faculty of Agriculture, University J. J. Strossmayer, Osijek, Croatia
Ivan Marić ; Department of Geography, University of Zadar, Zadar, Croatia

Abstract

Bathymetric survey of the lake at Skradinski noise has included a wide range of activities that were carried out in several stages according to the standards of the International Hydrographic Organization. The measurements were made integrated measuring system that included three main components: sonar Hydrostar 4300 and GPS devices Ashtech Promark 500 – base (base) and Thales Z-Max – mobile (rover). Area survey included 8 lakes total area of 5.677 ha. Total has collected 2623 points. The survey was conducted for several reasons: making bathymetry map, lake bottom classification, management and protection of flora and fauna, data infrastructure, tourism and others. The main objectives of the work are to compare the efficacy of the method of interpolation, determine the most appropriate interpolator to produce raster models lakes, calculate the area and volume of the lake and to compare the differences in the calculation between raster models. The accuracy of the interpolation method was tested by analysing eight statistical parameters obtained by the method of cross-evaluation (cross-validation). Besides the analysis parameters, interpolation methods were compared and visually, the graphic representation of data (two-dimensional and three-dimensional). It was found that multiquadrics radial basic (ROF) in all parameters best deterministic, and ordinary kriging best geostatistical methods of interpolation. Made first bathymetric map of Lake at Skradinski buk in Croatia. Shown are new scientific and methodological compelling data on bathymetric features, surface and volume of the lake.

Keywords

bathymetric survey; sonar; deterministic and geostatistical interpolation methods; mean square error; Skradinski buk

Hrčak ID:

169370

URI

https://hrcak.srce.hr/169370

Publication date:

23.9.2016.

Article data in other languages: croatian

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