COMPARISON OF ACTUAL AND PRESUMED WATER CAPACITY OF FISH POND IN LUKACOVCE
Jakub Fuska, Viliam Barek, Jozefina Pokryvkova, Peter Halaj
Pages: 409-414 Published: 1 Jun 2014
Views: 2,779 Downloads: 990
Abstract: This paper deals with the possibility of the reservoir bottom mapping for the calculation of the water depth and water volume in GIS environment with the use of the creation of 3D models of the reservoir bottom in raster and vector formats. Data collection was done in July of 2013 as the non-contact surveying with the GNSS receiver and echosounder. Surveying was executed as the RTK GNSS surveying with continuous depth measurement with echosounder during the sail with raft boat propelled with electric engine. Processing of collected data and model creation was done in ArcGIS 9.2 software. For the raster models creation we used “Spline with tension” and “Topo to raster” interpolation methods, for the vector model creation we used the TIN modelling tools with application of the Delaunay triangulation rules, these models were used for the calculation of the water volume. Proposed method was demonstrated on fish pond in Lukáčovce, Nitra district, Slovak Republic, where the fish pond siltation is evident. Available data are from operation documentation of the fish pond from the year 2011, where is noted that the fish pond stores 81 000 m3 of water with the area of 5,8 ha. Surveying of this fish pond has found that the true water storage capacity is only 46 000 m3 of water with the area of 5,57 ha.
Keywords: fish pond, bathymetric survey, water reservoir storage capacity