Abstract
Sustainable landscape management involve also water reservoir management. The demand of their reconstruction represents a good opportunity for redesigning hydrotechnical structures and their parameters using recent methods and models. The estimation of wind-driven waves on small water reservoirs and their effects on water reservoir structures rarely are applied, although it is an important part of the dam height calculation. The analysis of wave run-up on the upstream face of the dam was performed by means of the Slovak Technical Standard (STN), Coastal Engineering Manual (CEM), Shore Protection Manual (SPM) and model designed by American Society of Agricultural and Biological Engineers (ASABE). The estimations of the wave characteristics differ depending on the model; wave height (H13%) within the range 0.32–0.56 m, wave period 1.32–2.11 s and run-up (R2%) 0.84–1.68 m under conditions of design wind speed 25 m·s−1. Results obtained by CEM, SPM models predict lower values than STN and ASABE models. Since the height difference between the dam crest and still water level in the reservoir is only 0.90 m, we can expect overtopping of the crest by waves after the critical wind speed is exceeded.
Highlights
The agricultural landscape is the most effected part of the landscape in the world due to climate change and landscape development
The analysis of wave run-up on the upstream face of the dam was performed by means of the Slovak Technical Standard (STN), Coastal Engineering Manual (CEM), Shore Protection Manual (SPM) and model designed by American Society of Agricultural and Biological Engineers (ASABE)
The study follows similar research conducted at Czech and Slovak dams from the 1950s [18,19,20], with an added value consisting in the implementation of the current scientific national and foreign knowledge within the field into the conditions of small water reservoirs
Summary
The agricultural landscape is the most effected part of the landscape in the world due to climate change and landscape development. Landscape and agricultural hydrology represents the elementary analysis of the processes of landscape creation and development. Ongoing climate change is redistributing the cycle and the amount of water in the landscape. Small water reservoirs (SWR) are an integral part of the agricultural landscape and make a significant contribution to the protection and creation of the environment. The positive impact of SWR, mainly in the agricultural landscape, is indisputable. The positive role of SWR can be provided only in case of careful and responsible designed and sensitive integration into the landscape to increase water retention and water quality [1]
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