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J. Szolgay  - - - 
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

K. Hlavčová

30 shared publications

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

Kazimierz Banasik

27 shared publications

Department of Hydraulic Engineering, Warsaw University of Life Sciences–SGGW, Nowoursynowska 159, 02-776 Warsaw, Poland

Peter Valent

9 shared publications

Department of Land and Water Resources Management, Faculty of Civil Engineering, Slovak University of Technology, Radlinského 11, 810 05 Bratislava, Slovakia

Publication Record
Distribution of Articles published per year 
(2006 - 2019)
Total number of journals
published in
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
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 0 Citations Flow characteristics of intermittent rivers in Slovakia Agnieszka Rutkowska, Silvia Kohnová, Kazimierz Banasik, Jan ... Published: 01 September 2018
Annals of Warsaw University of Life Sciences – SGGW. Land Reclamation, doi: 10.2478/sggw-2018-0017
DOI See at publisher website ABS Show/hide abstract
Flow characteristics of intermittent rivers in Slovakia. Intermittent rivers are rivers that cease to fl ow, i.e. temporary, ephemeral, seasonal, and episodic rivers. Analysis of hydrological regime of such rivers is pivotal in assessment of water resources because changes in fl ow characteristics of such rivers may affect neighboring catchments or the entire region through changes in water supply reservoirs such as lakes, wetlands and mosses. Recently, an increasing number of intermittent rivers and ephemeral streams (IRES) and an elongation of the zero- -fl ow events has been observed in Europe due to climatic changes and anthropogenic influence. Intermittent rives in Slovakia were studied in the paper using statistical methods. The characteristics of the zero-fl ow period, of duration of the longest annual zero-fl ow event and of timing of such events were derived. The circular statistics were helpful in recognition of the dates of occurrence of such events. The comparative analysis between catchments was performed. The variability in precipitation and evapotranspiration and the increasing temperature were identified as the possible drivers of the fl ow intermittence in these catchments. The research was performed within the COST Action SMIRES (Science and Management of Intermittent Rivers & Ephemeral Streams).
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 2 Reads 56 Citations Changing climate shifts timing of European floods Günter Blöschl, Julia Hall, Juraj Parajka, Rui A. P. Perdigã... Published: 10 August 2017
Science, doi: 10.1126/science.aan2506
DOI See at publisher website PubMed View at PubMed
Article 1 Read 1 Citation The potential for land use change to reduce flood risk in mid-sized catchments in the Myjava region of Slovakia Peter Rončák, Evelin Lisovszki, Ján Szolgay, Kamila Hlavčová... Published: 01 June 2017
Contributions to Geophysics and Geodesy, doi: 10.1515/congeo-2017-0007
DOI See at publisher website ABS Show/hide abstract
The effects of land use management practices on surface runoff are evident on a local scale, but evidence of their impact on the scale of a watershed is limited. This study focuses on an analysis of the impact of land use changes on the flood regime in the Myjava River basin, which is located in Western Slovakia. The Myjava River basin has an area of 641.32 km2 and is typified by the formation of fast runoff processes, intensive soil erosion, and muddy floods. The main factors responsible for these problems with flooding and soil erosion are the basin’s location, geology, pedology, agricultural land use, and cropping practices. The GIS-based, spatially distributed WetSpa rainfall-runoff model was used to simulate mean daily discharges in the outlet of the basin as well as the individual components of the water balance. The model was calibrated based on the period between 1997 and 2012 with outstanding results (an NS coefficient of 0.702). Various components of runoff (e.g., surface, interflow and groundwater) and several elements of the hydrological balance (evapotranspiration and soil moisture) were simulated under various land use scenarios. Six land use scenarios (‘crop’, ‘grass’, ‘forest’, ‘slope’, ‘elevation’ and ‘optimal’) were developed. The first three scenarios exhibited the ability of the WetSpa model to simulate runoff under changed land use conditions and enabled a better adjustment of the land use parameters of the model. Three other “more realistic” land use scenarios, which were based on the distribution of land use classes (arable land, grass and forest) regarding permissible slopes in the catchment, confirmed the possibility of reducing surface runoff and maximum discharges with applicable changes in land use and land management. These scenarios represent practical, realistic and realizable land use management solutions and they could be economically implemented to mitigate soil erosion processes and enhance the flood protection measures in the Myjava River basin.