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K. Hlavčová  - - - 
Top co-authors See all
J. Parajka

109 shared publications

Associate Editor, Water Resources Research; Co-Editor, Journal of Hydrology and Hydromechanics

Silvia Kohnová

42 shared publications

Department of Land and Water Resources Management, Faculty of Civil Engineering STU, Bratislava, Slovakia

Ján Szolgay

34 shared publications

Department of Land and Water Resources Management, Faculty of Civil Engineering STU, Bratislava, Slovakia

Milan Lapin

10 shared publications

Comenius University in Bratislava

Peter Rončák

6 shared publications

Department of Land and Water Resources Management, Faculty of Civil Engineering STU, Bratislava, Slovakia

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Publication Record
Distribution of Articles published per year 
(2006 - 2019)
Total number of journals
published in
 
14
 
Publications See all
Article 1 Read 0 Citations Future impacts of land use and climate change on extreme runoff values in selected catchments of Slovakia Silvia Kohnová, Peter Rončák, Kamila Hlavčová, Ján Szolgay, ... Published: 04 January 2019
Meteorology Hydrology and Water Management, doi: 10.26491/mhwm/97254
DOI See at publisher website
Article 0 Reads 2 Citations Estimating the effectiveness of crop management on reducing flood risk and sediment transport on hilly agricultural land... K. Hlavčová, M. Danáčová, S. Kohnová, J. Szolgay, P. Valent,... Published: 01 January 2019
CATENA, doi: 10.1016/j.catena.2018.09.027
DOI See at publisher website
BOOK-CHAPTER 0 Reads 0 Citations Impacts of Future Climate Change on Runoff in Selected Catchments of Slovakia Peter Rončák, Kamila Hlavčová, Silvia Kohnová, Ján Szolgay Published: 15 December 2018
Climate Change Management, doi: 10.1007/978-3-030-03383-5_19
DOI See at publisher website
Article 0 Reads 1 Citation Comparison of two concepts for assessment of sediment transport in small agricultural catchments Kamila Hlavčová, Silvia Kohnová, Yvetta Velísková, Zuzana St... Published: 01 December 2018
Journal of Hydrology and Hydromechanics, doi: 10.2478/johh-2018-0032
DOI See at publisher website ABS Show/hide abstract
The erosion, transport and deposition of sediments in small valley reservoirs represent a significant impact on their operations, mainly with regard to reducing the volume of their accumulation. The aim of this study is a comparison and uncertainty analysis of two modelling concepts for assessment of soil loss and sediment transport in a small agricultural catchment, with an emphasis on estimating the off-site effects of soil erosion resulted in sedimentation of a small water reservoir. The small water reservoir (polder) of Svacenicky Creek which was built in 2012, is a part of the flood protection measures in Turá Lúka and is located in the western part of Slovakia, close to the town of Myjava. The town of Myjava in recent years has been threatened by frequent floods, which have caused heavy material losses and significantly limited the quality of life of the local residents. To estimate the amount of soil loss and sediments transported from the basin, we applied two modelling concepts based on the USLE/SDR and WaTEM/SEDEM erosion models and validated the results with the actual bathymetry of the polder. The measurements were provided by a modern Autonomous Underwater Vehicle (AUV) hydrographic instrument. From the sediment data measured and the original geodetic survey of the terrain conducted at the time of the construction of the polder, we calculated changes in the storage volume of the polder during its four years of operation. The results show that in the given area, there has been a gradual clogging of the bottom of the polder caused by water erosion. We estimate that within the four years of the acceptance run, 10,494 m3 of bottom sediments on the Svacenicky Creek polder have accumulated. It therefore follows that repeated surveying of the sedimentation is very important for the management of the water reservoir.
Article 0 Reads 0 Citations Detection of future changes in trends and scaling exponents in extreme short-term rainfall at selected stations in Slova... Silvia Kohnová, Marianna Vasilaki, Martin Hanel, Ján Szolgay... Published: 01 September 2018
Contributions to Geophysics and Geodesy, doi: 10.2478/congeo-2018-0009
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This paper analyses projected changes in short-term rainfall events during the warm season (April – October) in an ensemble of 30 regional climate model (RCM) simulations. The analysis of trend changes and changes in scaling exponents was done for the Hurbanovo, Bratislava, Oravská Lesná, and Myjava stations in Slovakia. The characteristics of maximum rainfall events were analysed for two scenario periods, one past and one future (1960–2000 and 2070–2100) and compared to the characteristics of the actual observed events. The main findings from the analysis show that 60-min short-term events for most of the RCM simulations will either increase or remain constant. On the other hand, the depths and intensities of daily events are projected to increase significantly; in some cases they were found to be ten times larger. Trends in future events at the Hurbanovo station were found to be insignificant. In the other stations positive trends in future rainfall events prevail, except for daily rainfall at the Myjava station, which shows a negative trend. Using results from the selected simulations, the scaling exponents estimated are on average lower than the exponents of the data observed. On the other hand, due to the higher daily precipitation amounts in the future seen to all the scenarios, the downscaled values of short-term rainfall at all the stations analysed might be considerably higher in the future horizons, which could subsequently affect future design rainfall values for engineering designs.
Article 0 Reads 0 Citations Monitoring and Assessment of Water Retention Measures in Agricultural Land Roman Výleta, Michaela Danáčová, Andrej Škrinár, Róbert Fenc... Published: 21 December 2017
IOP Conference Series: Earth and Environmental Science, doi: 10.1088/1755-1315/95/2/022008
DOI See at publisher website ABS Show/hide abstract
One of the most interesting events, from the environmental impact point of view, is the huge storm rainfall at which soil degradation processes occur. In Slovakia, agricultural areas with a higher slope have been recently increasingly denudated by water erosion processes. Areas having regular problems with muddy floods and denudation of soil particles have been currently identified. This phenomenon has long-term adverse consequences in the agricultural landscape, especially the decline in soil fertility, the influence on soil type and the reduction of depth of the soil profile. In the case of storm rainfall or long-term precipitation, soil particles are being transported and deposited at the foot of the slope, but in many cases the large amounts of sediment are transported by water in the form of muddy floods, while putting settlements and industrial zones at risk, along with contamination and clogging of watercourses and water reservoirs. These unfavourable phenomena may be prevented by appropriate management and application of technical measures, such as water level ditches, erosion-control weirs, terraces and others. The study deals with determination of the soil loss and denudation of soil particles caused by water erosion, as well as with determination of the volume of the surface runoff created by the regional torrential rains in the area of the village of Sobotište. The research is based on the analysis of flood and erosion-control measures implemented in this area. Monitoring of these level ditches for protection against muddy floods has been carried out since 2015 using UAV technology and terrestrial laser scanning. Monitoring is aimed on determination of the volume of the ditch, changes in its capacity and shape in each year. The study evaluates both the effectiveness of these measures to reduce the surface runoff as well as the amount of eroded soil particles depending on climatological conditions. The results of the research point to the good efficiency of these measures; however, in conjunction with belt crops cultivation they could form a comprehensive flood and erosion-control protection to eliminate the muddy floods and protect the settlements from surrounding slopes.
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