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The list of national projects SAS

Institute of Hydrology
Analysis of changes in surface water balance and harmonization of design discharge calculations for estimation of flood and drought risks in the Carpathian region
Analýza zmien vodnej bilancie povrchových vôd a harmonizácia výpočtu návrhových prietokov pri odhade rizika povodní a sucha v karpatskej oblasti
Program: VEGA
Project leader: Ing. Bačová Mitková Veronika PhD.
Annotation:Climate change brings a number of uncertainties into forecasting of the future surface water balance. The project is aimed, in the first part, at investigation, analysis and evaluation of changes in hydrological regime at selected streams in the Carpathian region. The years of trend changes, variability, probability and time parameters of their occurrence will be identified. These indicators will be given into the context with the climatological indicators. The EU Directive 2007/60/EC of 23rd. October 2007 requires Member States of EU to draw up flood risk maps for floods with very long return periods. The relationship between peak of the flood waves and their probability of occurrence is one of the fundamental problems of hydrological extremes that have the great importance for water management plans and flood protection plans designing. Therefore the project will also focus on harmonization of the calculation of discharge design values subsequently used to estimate flood and drought risks in a given region.
Duration: 1.1.2019 - 31.12.2022
Fytoindication of changes of soil hydrological regime
Fytoindikácia zmien hydrologického režimu pôdy
Program: VEGA
Project leader: Mgr. Zvala Anton PhD.
Duration: 1.1.2019 - 31.12.2022
Connectivity and flood runoff dynamics in headwater catchments of Slovakia
Konektivita a dynamika tvorby povodňového odtoku vo vrcholových povodiach Slovenska
Program: SRDA
Project leader: RNDr. Holko Ladislav PhD.
Annotation:Hydrological connectivity of subsurface and surface storages or different catchment elements within a landscape is a crucial factor in the complex process of flood flow generation on hillslopes. The project aims to develop modelling systems, which respects observed connectivity patterns based on experimental monitoring of runoff generation in pilot headwater catchments in four typical forested and agricultural hydrological environments. Instead of building complex representations of structural connectivity elements in 3D as in conventional distributed models, innovative hybrid distributed conceptual modelling representations of the governing processes and controls will be sought. Typical patterns of the observed dynamics of processes will be conceptually represented in a two-level distributed modelling framework. At the first level of spatial variability, based on the monitored processes, observed source areas and connectivity patterns, the hydrological response unit (HRU) concept will be used with spatially homogeneous parameterization, which will be allowed to change in time. To respect the spatial variability of state of the catchment, within these units, grid-based conceptual models will be driven by spatially distributed inputs.
Duration: 1.7.2020 - 30.6.2024
Quantification of Interaction Processes in Hydrological Cycle in Lowland area conditions
Kvantifikácia interakčných procesov v hydrologickom cykle v podmienkach nížinného územia
Program: VEGA
Project leader: Ing. Gomboš Milan CSc.
Annotation:From a systemic point of view, the hydrological cycle is understood as a rugged unit composed of several parts between which there are bonds. This system consists of an open physical system that can be divided into atmosphere (A) - plant cover (PC) - unsaturated zone (UZ) - groundwater (GW). Interaction processes take place between individual subsystems. The size and intensity of interactions depend on the geographic, geophysical and climatic conditions of the area. The fundamental importance of knowledge of the interaction processes is, above all, that transport of mass, energy and biomass are realized there. It is a fundamental basis for adaptation arrangements. The aim of the project is to quantify interaction processes in various time scales. Temporal development and mutual links along the vertical of the systém will be examined. The research will be carried out in the environment of the East Slovak Lowland (ESL). Lysimetric research, numerical simulation and monitoring methods will be applied.
Duration: 1.1.2020 - 31.12.2023
Prediction of a point pollution source position in a watercourse network – a hydrodynamic approach
Predikcia miesta zdroja bodového znečistenia v sieti vodných tokov – hydrodynamický prístup
Program: VEGA
Project leader: Ing. Velísková Yvetta PhD.
Annotation:The aim of the project is to design and develop a methodology and computational tool for predicting the position of point pollution source in the watercourse network based on the pollutant concentration time course in the monitored watercourse profile (inverse task). This task will be solved in real water flow conditions with free surface flow and will be generally applicable in a branched network, i.e. in a river, canal or sewer network. The practical solution of the given inverse task can be helpful in water management practice, i.e. it helps to identify sources of illegal discharges of hazardous substances (or unannounced accidents). The project will also include optimization of computational procedures, sensitivity analysis and verification of results of pollution source locality prediction based on experimental measurements in real watercourse network conditions, canal or sewer networks.
Duration: 1.1.2020 - 31.12.2023
Management of crisis situations in water supply with respect to climate change
Riešenie krízových situácií v zásobovaní vodou s ohľadom na klimatické zmeny
Program: SRDA
Project leader: Ing. Velísková Yvetta PhD.
Annotation:Within the project will be verified possibilities of application of new filtration materials their possible combinations for provide the healthy safe drinking water even during short-term degradation of quality of surface water, which is caused particularly during storm rainfall and melting snow in spring time, the efficiency of multilayer filtration with the membrane micro or ultra filtration module will be compared, economically and technically evaluated the results of experiments to work out a method for design of multimaterial filtration and membrane technology in water treatment technology line on the basis of water quality and operating conditions of the distribution network. Another objective of the project is to monitor the changes in surface water quality at different seasons and different hydrological conditions as well as the impact of climate change on water quality and technological processes of water treatment.
Duration: 1.7.2019 - 30.6.2023
Variability of the water balance and hydrological processes in a mountain catchment under the global change conditions
Variabilita prvkov hydrologickej bilancie a hydrologických procesov v horskom povodí v podmienkach globálnej zmeny
Program: VEGA
Project leader: RNDr. Holko Ladislav PhD.
Annotation:Mountain areas are very sensitive to climate change. Slovakia is a mountainous country, but it has just one small mountain catchment with the long-term measurements of not only precipitation and runoff, but also snow water equivalent and selected hydrological processes. The project wants to answer the questions if and what has changed in the hydrological cycle of the small mountain catchment of the Jalovecký Creek (The Western Tatra Mountains) in hydrological years 1989 to 2018 and if the changes predicted almost 20 years ago correspond to measured reality. Except measured data it will utilize modelling of the soil water flow, distributed hydrological modelling, and stable isotopes of oxygen and hydrogen in water which are monitored since 1991. The monitoring in the catchment will continue to provide data covering the climatic standard period 1991-2020.
Duration: 1.1.2019 - 31.12.2022
Impact of climate change on rainfall–runoff relationships
Vplyv klimatickej zmeny na zrážkovo–odtokové vzťahy
Program: VEGA
Project leader: Ing. Šurda Peter PhD.
Annotation:Combustion of fossil fuels and changes in land use are leading to a change in global climate. Climate models project increases in hot extremes in most inhabited regions, heavy precipitation in several regions, and the probability of drought and precipitation deficits in some regions. In the conditions of Slovakia, several areas sensitive to water erosion, will suffer with the expected effects of sudden and intense storms. Drought events, which frequently will coincide with heat waves, are likely to become increasingly important for the development and dynamics of soil water repellency. Another important feature, which is related to climate change and likely to be promoted by drought and heat waves, is the increasing risk of wildfires. In the present project, we will focus on the analysis of changes in surface runoff / water erosion caused by altered parameters (expected elevated values) of design rains, expected effects of forest fires and widespread water repellency.
Duration: 1.1.2020 - 31.12.2023
Effect of vegetation and its secondary succession on soil hydrological processes
Vplyv vegetácie a jej sekundárnej sukcesie na hydrologické procesy v pôde
Program: VEGA
Project leader: Ing. Lichner Ľubomír DrSc.
Annotation:Vegetation can influence soil hydrology in several ways. Goal of the project proposed is estimation of the relationships between the hydrophysical parameters (hydraulic conductivity, ethanol and water sorptivity), soil water repellency parameters (water drop penetration time, water repellency cessation time, repellency index and modified repellency index), runoff intensity during irrigation experiments, and duration of secondary succession at the burned sites and abandoned fields.
Duration: 1.1.2020 - 31.12.2023
Influence of aquatic vegetations on quantitative and qualitative parameters of lowland streams
Vplyv vodnej vegetácie na kvantitatívne a kvalitatívne parametre nížinných vodných tokov
Program: VEGA
Project leader: Mgr. Schügerl Radoslav PhD.
Annotation:Occurence of aquatic vegetation is very frequent problem of surface water streams, primarily in lowland areas. Possibility of plant growth is mainly during a summer period. Aquatic vegetation reduces discharge and deforms velocity profile. Moreover, surroundings of lowland water streams is commonly agricultural with frequent fertilizer utilization. Result of that is the increasing of nutrient concentrations in water, which lead to plant growth extension. The aim of the project will be the quantification of water plants influence on discharge and flow conditions. The next aim will be an analysis and quantification of nutrient content impact and impact of water temperature on degree of stream sprouting. For achievement the goals there will be utilised the latest equipments and methodical procedures along with verified statistical analysis methods.
Duration: 1.1.2019 - 31.12.2022

The total number of projects: 10