Changes in retention characteristics of 9 historical artificial water reservoirs near Banská Štiavnica, Slovakia

Kubinský, Daniel, 1986-

Changes in retention characteristics of 9 historical artificial water reservoirs near Banská Štiavnica, Slovakia = Zmeny retenčných charakteristík 9-tich historických umelých vodných nádrží neďaleko Banskej Štiavnice, Slovensko / Daniel Kubinský, Karol Weis ... [et al.]. -- The article is focused on the evaluation of accumulation volume changes in 9 water reservoirs near Banská Štiavnica (Slovakia) by comparing historical maps and using modern bathymetric surveying technologies. The mining region of Banská Štiavnica has been inscribed into the UNESCO List of the World and Cultural Heritage in 1993. Accumulation and transfer of sediments depend mainly on changes of land cover in the watersheds that lead to the loss of retention capacity and reduction of life span of reservoirs. The results of a comparison of two 3D models, one created from historic documentation and the other created from data of field surveying have shown overall reduction in the volume of water totalling 446484m3, i.e. 16.70%from past to current time. Causes of sedimentation were searched in watersheds changes over time. These were identified by comparison of historical aerial imagery (1949) with existing aerial photographs

In Open Geosciences. -- Warsaw : De Gruyter Poland, 2015. -- ISSN 2391-5447. -- Vol. 7, no. 1 (2015), pp. 880-887