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Task of shipping operations control of the Gab??kovo project (GAP) is to synchronise several requirements. These come from versatility of GAP and must meet following goals (maximization of the ship locks capacity, maximization of income from electricity production in hydropower plant, navigable depth below minimal shipping depths in ford sections caused by flow changes on GAP and ships crushing into riverbed of the Danube river). By taking these goals into account, we can, in general, define operation of GAP as co...

In different climatic and hydrological regional studies, data from grid databases that cover the climatic data of larger areas can be used. The authors of this contribution are interested in the region of Central Europe, where they can use the publicly available CarpatClim and ECA&D databases for such needs. The first mentioned database provides better spatial detail of the data, but the data is available only to the year 2010. On the other hand, the EC&D database is continually updated (up to the present), but th...

The authors present the results of the research on the variability of selected physicochemical properties and discharge of medicinal waters in Szczawno-Zdroj. The intake discharge and selected physicochemical parameters (water temperature, HCO3-, CO2 and Rn content) were taken into account. These parameters and intakes discharge are measured regularly. Based on the results of the exploitation observations (1967-2017) it was also shown that the content of the gas in the Mlynarz and Mieszko 14 intakes varied conside...

The aim of the article is to map the possibilities of investment activities financing for the development of technical infrastructure in the municipality. Generally this is one of the most frequent investment activities in municipalities. The article introduces the insight in the sewerage system and wastewater treatment plant construction. These investments are most often carried out due to the need of development the services for the municipality residents and changes in the legislation in the field of waste wate...

The article presents project implementation within Slovak Hungarian cooperation SKHU/1601/4.1/187. It includes flood modelling to predict the size and location of the flooded area. The target area is the catchment area of Hern?d/Horn?d river. Due to the cross-border nature of disasters, the objectives could be achieved more efficiently by the framework of a Hungarian-Slovakian joint cooperation. The results will ensure prompt data and information to support the decision making of disaster management authorities, a...

A salt stratified Lake Shira has been the subject of extensive research because of its central role in the existence of the Khakassia resort area. The previous research was mainly aimed at water quality issues. The studies of the physical dynamics of Lake Shira relevant to the present work include the general observation of currents on the basis of the field experiments in 2011-2014. Velocity measurements were carried out using Doppler Current Profilers with frequency 600 kHz and 1200 kHz in the bottom track mode ...

Conceptual model of laboratory settling tank with cross current multiflux packet is presented in this article. Geometrical parameters of the sedimentation tank were obtained during numerical analysis of flow condition in the settling tank. Additionally effects of different kinds of modifications in the sedimentation chamber in settling tank were also presented. The results of the analysis made it possible to obtain even flow of the fluid in the working space of the tank. The simulations, which were carried out usi...

The aquatic systems of Kerch peninsula are unique groundwater manifestations situated on the area with a low technogenic pressure. Thereby these are very interesting object for the study of processes of the migration and accumulation of the geochemical markers (polycyclic aromatic hydrocarbons, PAHs) as the background areas. The study is devoted to the assessment of the processes on the geochemical barriers (GCB) ? self-organizing components of geochemical systems, where the activation of physical and chemical pro...

Groundwater filtration is a very complicated process determined by natural environmental factors and anthropogenic impacts. Credible predictions of impact of extortions on the groundwater environment require application of appropriate research methods which will enable detailed representation of the groundwater circulation. Such methods include numerical modeling of filtration processes and application of mathematical description of groundwater flow, based on assumed hydrogeological parameters and boundary conditi...

The flood regime in the Prut ? B?rlad catchments is characterised by short, high intensity floods in the majority of upland rivers. These upland rivers are often ephemeral ? dry during the hot, summer months and wet during the winter months. In lowland rivers, flooding is more prolonged, especially near confluences. Short, high intensity rainfall coupled with low infiltration on catchments lead to flash flooding in upland areas. Changing land use patterns during the last 15 ? 20 years are increasing the frequency ...

The Paper present confined groundwater flow and solute transport modeling in water catchments area and wastewater system Giarmata, using the hydraulically modelling whit mathematical simulation. Modeling purpose is to constitute extending pollution propagation of aquifers generated of possible wastewater pumping station pollution. Pollution zone definition is necessary to settle technical measures to using drinking water systems. The used software for numerical modelling in this paper is Processing Modflow for Win...

In the area of the Erzgebirge Foothills (Krusne hory), research of flooded mine pits in terms of water regime and quality as well as their management and subsequent use has attracted great attention in recent years. Smaller water reservoirs (ponds, wetlands, dips, sinks) have not been systematically monitored, despite of their importance in this type of landscape which has been affected by mining. The Modlany reservoir was monitored in 2013?2017. This small water body shows symptoms of an extremely eutrophicated s...

Modeling was carried out on the basis of hydrological data from the ?yna River (north-eastern Poland). The length of the river is 264 km, the average river slope is 1.2 ?, the catchment area is 7126 km2. Modeling was based on data on water flows and the amount of precipitation. Neural models were created in which the input data is the amount of rainfall and the output is the flow. The possessed data has been divided into two parts, one of which was used to teach and test ANN, and the other - smaller - to verify th...

Hydrological reclamations are one way of eliminating consequences of surface mining of coal. The residual quarries occupy extensive areas and the most effective way how to integrate them into the surrounding landscape is their flooding. This will create a new water area that can be used recreationally and could also serve as a habitat or a migration point for different plant and animal species. The contribution is focused on northern part of the Czech Republic (The Most Basin) where brown coal has been mined for n...

The article is dedicated to the study of hydrometeorological parameters on a stationary oceanographic platform in the Black Sea. The research paper contains the description developed in the Marine Hydrophysical Institute?s complex for measuring meteorological parameters (wave height, wind speed and direction, free-air and sea temperature, barometric pressure, relative humidity). The measurements were carried out on a stationary oceanographic platform located in the coastal zone of the southern coast of Crimea at a...

According to the climate scenarios and results from the models of general atmospheric circulation, the temperature increase during the growing season and more frequent dry periods are anticipated in the area of the Danube Lowland, Zahorie Lowland and Eastern Slovak Lowland belonging to the Danube Region. These lowland regions are intensive agricultural areas having an impact also on rural development and its social level. Water becomes a limitation factor of further development and sustainability. Areas experienci...

The article deals with an assessment of the impact of climate change on the hydropower potential in the selected river basins in Slovakia. The basic indicator of the potential for water energy utilization is the calculation of the so called hydropower potential (HPP). While the hydropower potential belongs to the natural riches of each country, and as it is linked to the use of the head (difference in water levels), it includes the technical and economic possibilities as well as the ecological and social prioritie...

The land subsidence caused by underground mining results in the transformation of water relations in the catchment. The purpose of the research is to determine the impact of the subsidence basin on changes in the water cycle. Detailed research was carried out in the city of Bytom, in the Karb district where one of the most spectacular subsidence basins on the Silesian Upland (southern Poland) emerged. As part of the study, the geological structure of the area was examined and a detailed geomorphological and hydrol...

General topic of this paper is numerical modelling of pollution dispersion in streams and use of some modelling approaches for the inverse task. Inverse task means a modelling technique, which is focused on the localisation of unknown pollution source. Such task is called ?inverse ?, because typical common models or equations are rather focused on the pollution spreading simulation, whereas the pollution source location is known. To solve such inverse problem various approaches can be used, but in all cases a prer...

The widespread use of fertilizers and pesticides impairs the state of the environment. Identifying the nature of the influence of fertilizers and pesticides on natural waters and identifying the extent of this influence is relevant today. The article discusses the influence of mineral and organic fertilizers on the qualitative characteristics of groundwater (waters of the first aquifer from the surface) in the Predvolzhsky region of the Republic of Tatarstan. Hydrogeochemical and agrochemical data help assess this...

The purpose of this work was to determine the impact of anthropogenic activities, which consisted in the expansion of the national road 51 to change the water relations in the Upper Pas??ka catchment. Hydrological measurements were carried out on the Pas??ka River near the Gry?liny village. Studies have shown that the expansion of road 51 has changed the way the river basin has been developed. The area of agricultural and forested areas decreased in favor of paved and built-up areas, which resulted in an increase ...

Nowadays, after periods of time without precipitation, more and more frequent rains are coming in with very high flows in very short time. In case of extreme precipitation phenomena, sewer networks can no longer take rainwater flows, which often occur with large damages, often with loss of life. Drinking water is not renewable. That is why it is important to protect drinking water sources by using rainwater more efficiently. By recovering, storing and using rainwater, costs are reduced by treating and transporting...

The flood time of Siberian Rivers coincides with the spring and summer period and is characterised by intensive water feeding because of intensive snow melting. At all that, the most annual water discharge is formed, the latter, by turn, causes erosion processes. In addition, in years with excessive amount of flood water, the inhabitants suffer economic losses very much: E.g., economic activity areas are flooded, engineering structures are washed away and damaged. A number of factors form high water level such as ...

The authors present the results of the research on the variability of selected physicochemical properties and discharge of medicinal waters in Ladek-Zdroj. The medicinal waters are exploited by five natural springs and one deep L-2 well. Based on previous studies, it was found that there are strong hydraulic bonds between particular intakes of thermal waters. The nature of these correlations indicates that medicinal thermal waters are recharged from one fissure deposit of deep circulation system. The main factors ...

World is changing rapidly. We are facing new reality and challenges. New global and complex solutions are needed to adapt to future reality. Tasks about landscape are coming to the forward more and more. It is necessary to speak about role of landscape in our life. Many points of view need to take into account when we want to speak about landscape and changes which are waiting for us in next decades. Question for researchers is how to obtain the best data for the best suggestions and recommendations for policy mak...

The study of aquatic systems is an extremely important issue in the context of saving. natural resources. In this respect, the description of the evolution over time and the dynamics of some status parameters describing the dynamic aquarium system is a rather difficult problem. This paper presents a method of representing evolution over time and some status parameters that allow assessment of the status of an aquatic system. The method outlined in the paper is based on the use of automated automatic neural network...

Lake Taymyr is largest lake in Eurasian Arctic. Late Quaternary environmental history of the area has been studied extensively during the last decades. However, Late Pleistocene and Holocene history of Lake Taymyr itself remain uncertain. More information concerning lake-level changes and climate conditions can be obtained by studying lake terraces. During summer 2016, several outcrops of Lake Taymyr terraces (10-m high and 25-m high terraces) deposits have been investigated. Here we present the results of litholo...

Technological processes and human activities generate large amounts of waste, including streams of hazardous waste. This type of waste is a serious threat to the natural environment, therefore it is important to choose the right recovery process or disposal of this type of waste. The article presents legal aspects concerning the management of hazardous waste, methods of disposal and the structure of hazardous waste management in Poland. The criteria for the selection of technology have been presented as well as te...

The Panensk? Creek has been impacted by Pb pollution from local factories in the period of little environmental concern, which has not yet been documented completely in state registry of environmental risks in the Czech Republic. A lead-glass processing factory in Jablonn? v Podje?t?d? was one of the main industrial Pb pollution sources in the Panensk? Creek catchment. It was in operation in 1955-2002. To localize the original and still active pollution source in this area, we used geographical information systems...

The Arkhangelsk region is one of the leading forest industry centers of Russia. The region possesses significant chemical and mechanical wood processing facilities, producing about one third of the pulp and cardboard, also up to 10% of sawn timber, paper and fuel pellets of the total volumes in Russia. One of the forest industry?s problems is a historic underdevelopment of an infrastructure, in particular ? lack of transport links. Due to low population rate, the density of the land transportation system is minor,...

The Krka River is a pristine karstic stream and unique model system for the understanding and interpretation of environmental records in tufa precipitating rivers worldwide. The river is characterized by 7 main and numerous small tufa barriers grown in a constant and dynamic process depending upon many physicochemical factors. An evaluation of the quality status of the pristine karstic, tufa depositing aquatic environment of the Krka River National Park based on the analysis of mercury contents was performed for t...

The article shows that existing economic tool for natural resource using in agriculture doesn?t provide efficient natural resource using and main elements of natural media (close-to-the ground atmosphere layer, soils, water resources, flora and fauna) consump-tion, and doesn?t encourage resource and energy saving technologies practical use and doesn?t follow requirements provided by modern Russian Federation low on land and water using relations and environment safety. The necessity of transfer from high re-source...

Investigation of methods for increasing the rate of oxidation of ferrous ions dissolved in natural water and developing techniques for obtaining high-dimensional agglomerates of oxidized iron particles, with the aim of improving the efficiency of separation processes. As a method of oxidation in processes of deironing of natural waters, aeration and oxygenation of air through ceramic membranes were chosen. The effectiveness of the aeration method of deironing is associated with the rate of oxidation of Fe II with ...

Many simplifications are often made, in calculating of eigenmodes and eigenvalues of stuctures. The mass of a structure is distributed throughout the structure. However, in most cases, mass can be considered concentrated in the nodes of the structure. The procedure consists in concentrating the mass of the elements at each end thereof, followed by the summation of the mass of the elements that compete in the corresponding nodes. Generally, rotating mass components have a minor influence on the dynamic response of ...

The article presents the proposition of numerical simulation of the sedimentation process in sedimentation devices, including the method of defining and validating the numerical model of the suspension. The proposal includes a proposal to define a suspension in numerical simulation as a multiphase system with a polydisperse grain composition. The article contains information on the method of defining a multi-phase system based on grain composition of a suspension. A proposal for verification of the numerical model...

Green roofs represent one of the most diffused and representative Low Impact Development techniques (LID). Green roofs consist of a number of layers, including a vegetation layer, a lightweight soil medium, a drainage layer and an impermeable membrane. Recent studies have confirmed the benefits of green roofs. Green roofs are able to retain water, reduce peak flow, improve biodiversity and mitigate heat island. Although the benefits are evident, the transition from traditional urban drainage systems to the sustain...

Permeable pavements are among the most diffused Low Impact Development techniques (LID). Several studies have confirmed the optimal performance of permeable pavements in terms of peak reduction and water retention. Furthermore, permeable pavements have proven to reduce pollutant load in runoff water. Although the benefits are evident, the transition from traditional urban drainage systems to the sustainable ones is very slow. The lack of accurate modelling tools represents a key limiting factor in the diffusion of...

The Water Framework Directive obliges the member states of the European Union to monitor the state and ecological potential of water bodies. The assessment is based on physicochemical indicators, biological elements and hydromorphological conditions. As part of the hydromorphological conditions assessment, the following is taken into account: spatial layout of the watercourse, water depth, bottom substrate, as well as the presence, spatial and species structure of aquatic and riparian plant communities. Considerin...

The object of study was Wolszty?skie Lake, (area 124.2 ha, max depth 4.2 m). That water body is flow-through lake type and it is alimented by Dojca River and total catchment area is 193,5 km2. The lake was restored using phosphorus inactivation method ? in the 2005-2006 years an aluminum coagulant PAX 18 was used for treatment and in 2013-2014 years ? iron coagulant PIX 111. The results of research revealed, that the amounts of phosphorus fractions in the bottom sediment have changed. In the 20 cm thick sediment c...

One of the main contaminants in groundwater of South Russia is nitrate and being one of the essential problems of water providing system needs a solution. It was in 1981 when World Organization of Health pointed on necessity nitrate studying soil and water. Estimation of nitrate contamination in groundwater, used in housekeeping, of Rostov region was held. Results give an opportunity to find out and estimate tendency of changing quantity of contaminant in groundwater and can be regarded as foundation for further e...

Tsunami in the Black Sea is a relatively rare phenomenon. Because of its rare occurrence and small volume of full-scale data, tsunami hazard of the Black Sea region has not been sufficiently studied. However, the chance of tsunami waves is still on. In the XX century, four known tsunami phenomena were recorded by marigraphs. These include two events that occurred in 1927, events of 1939 and 1966. Vertical sea level fluctuations were recorded in several points on the Black Sea coast. However, true sea level heights...

Trichloroethene (TCE) and tetrachloroethene (PCE) have been detected in water of the Triassic carbonate aquifer in Tarnowskie G?ry area since 1994. Since 2005, TCE and PCE in groundwater have been constantly monitored by the Voivodship Inspectorate for Environmental Protection in Katowice in 12 observation wells and pumping wells located in Tarnowskie G?ry and outskirts of the city. After 24 years chlorinated solvents still pose a serious environmental risk and are responsible for closure of selected wells situate...

Agricultural production is based on responding issues related to climate change in the coming years. Frequent drought seasons lead to a decline in yield production, and negative hydrological balance is expected in the future, which will also affect water consumption for agriculture [1]. Based on sap flow measurements, it is possible to optimize irrigation. For our experiment was used the grape vines in Nitra region, on which we installed Dynagage Sap Flow Sensors with the Flow 32-1K Sap flow system, which measure ...

Physicochemical characterization of Varna mineral water was made, allowing classifying the type of water based on its macro and microelement composition. A comparative analysis of 23 physicochemical parameters of three water sources placed on the territory of Varna has been carried out. These included color, smell, temperature, turbidity, active reaction, content of ammonium ions, ammonia, nitrites, nitrates, electrical conductivity, total hardness, calcium, magnesium, sulfates, phosphates, chloride, total iron an...

There is salty water, such as the salt mine water of the Ostrava-Karvina detrity, in the Czech Republic, characterized by their high mineralization. Detrity water negatively affects most organisms and influence their growth processes. After long-term research, general phytoremediation ability has been found in reed. The phytoremediation ability has also been tested in laboratory conditions, by building hydroponic systems. For 8 months, hydroponics was being watered with saline and nutrient solutions "Hydroponex" a...

Nowadays a typical task in water quality modelling is to simulate the pollution spreading downstream, i.e. initial and boundary conditions are known. However, in practice opposite problems may occur: pollution concentration time courses in specific locations are known (e.g. based on the on-line monitoring), but the position of the pollution source is unknown. This type of task can occur in case of accidental pollution and is named as an inverse task. Particular importance has the inverse task application in urban ...

The population of Lviv (Ukraine) together with the suburban area is about 1 million inhabitants, which creates significant anthropogenic pressure on the environment. Suburban area, which is characterized by a wealth of natural resources - diverse landscapes, forests, water sources, therapeutic waters, is exposed to "creeping urbanization". At present, the geography of recreational use of natural objects is considerably expanded. The greatest burden of holidaymakers of today falls on the suburban area of the city w...

Due to the last years effects of climate changings upon surface water flow, but also due to alterations in running the complex water arrangements schemes in order to satisfy various updated needs, it happens that more and more low-level water reservoirs, especially in the hilly and plainly areas, would call for a study regarding their conversion from non-permanent to permanent storages. It is also true that there might be some cases of storages accomplished as permanent which recently tend to work seasonal, but in...

The conceptual basis for the creation of a forecast-analytical system that allows to predict the pollution and to control the purification of oil-containing sediments of small rivers are considered in this article. Oil content of bottom sediments creates the risk of secondary water pollution not only by substances entering the sludge. More dangerous products of degradation are formed in the result of the activity of the indigenous microorganisms, that inhabit the bottom of aquatic environment. Forecasting the dyna...

Measuring soil moisture it is usually not performed on a daily time step due to financial costs, time-consuming measurements and variability of the weather. However, since this information is an important part of many hydrological and water management studies, the author tries to solve this situation by proposing a suitable interpolation method. The goal is to predict daily moisture values so that their conformity with the test data is as high as possible. The calculation is based on the use of soil moisture data ...