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1
PL
Przedstawiono zagadnienia projektowe budowy stopnia wodnego „Byczeń” z elektrownią przepływową. Wykonano analizę środowiskowych uwarunkowań projektowanego spiętrzenia oraz określono parametry elektrowni na podstawie rachunku ekonomicznej efektywności inwestycji. Wykorzystując symulację przepływów w programie HEC-Ras, w środowisku graficzno-opisowej bazy danych GIS, określono oddziaływania stopnia piętrzącego na tereny przyległe i stwierdzono, że dodatkowym pozytywnym efektem budowy stopnia będzie stabilizacja koryta Nysy Kłodzkiej powyżej Byczenia.
EN
A presentation of design issues concerning the construction of the Byczeń weir and a hydroelectric station at km 100+076 of the Nysa Kłodzka river. The performed analyses of the environmental conditions relating to the proposed dam, as well as those of the power station, were determined on the basis of the cost-effectiveness of the investment. Based on the flow simulation conducted in the HEC-Ras program, within the environment of GIS databases, it was determined that the impact of the step dam on surrounding areas would have the additional positive effect of stabilizing the riverbed above Byczeń.
EN
Quality of groundwater is the most important issue in water management, especially in matter of using groundwater for local community consumption. Assessment of quality of the resources of groundwater is based on the results of chemical status monitoring and both are carried out according to EU regulations: the Water Framework Directive (2000/60/EC), the Groundwater Directive (2006/118/EC) and the Directive 2009/90/EC, and also national regulation (Regulations of the Minister of the Environment, 2008 and 2011). This paper presents the quality classification and groundwater chemical status assessment in part of catchment area of the Nysa Kłodzka river near Bardo town. Qualification and assessment was based on results of the field hydrogeological investigations and the chemical analysis of composition of the groundwater samples from monitoring points. In research area the major group are the groundwater rating as IV-class quality (62%). There are 23% of groundwater with II and III-class quality status and in the V-class – 15%. There are no points with groundwater rating as I-class quality. In area configuration groundwater in the part of Nysa Kłodzka river catchment are qualified as IV-class, so the chemical status is rating as poor. Assessment was accomplished by arithmetic average. Poor chemical status is caused by elevated concentration of selenium (Se), arsenic (As) and nickel (Ni). Occurring of this elements in groundwater is probably natural, because of geological structure of research area and lithology of aquifer.
EN
The ammonites Lewesiceras peramplum Mantell and ?Lewesiceras sp. are reported from the Upper Cretaceous in the Nysa Kłodzka Graben; they date from the Middle Turonian and ?Coniacian, respectively. The Middle Turonian limestones of the Stara Bystrzyca quarry contain an abundant assemblage of inoceramids (Inoceramus cuvieri Sowerby and I. lamarcki Parkinson) and other bivalves, including oysters, as well as brachiopods and trace fossils. Micropalaeontological data show the presence of foraminifers and siliceous sponge spiculae, bryozoans, ostracods and fragments of bivalves and gastropods. The Middle Turonian calcareous deposits belongs to the upper part of the Inoceramus lamarcki Zone (late Middle Turonian) and were deposited on a shallow, subtidal offshore shelf. They overlie the Middle Turonian Bystrzyca and Długopole Sandstones, which represent foreshore-shoreface delta deposits. The fossil assemblage suggests a moderate- to low-energy, normal-salinity environment with occasionally an oxygen deficit.
PL
Przedstawiono przebieg zmian pojemności zbiorników retencyjnych na Nysie Kłodzkiej spowodowany zarówno procesami sedymentacyjno-erozyjnymi, jak również działalnością gospodarczą.
EN
The article presents the course of changes in capacity of the retention reservoirs on Nysa Kůodzka, caused by sedimentation and erosion processes as well as economic activity of people.
EN
New research in the N part of the Bardo Gorge [close to the Sudetic Marginal Fault] evidenced the occurrence of two hitherto unknown Pleistocene river terraces. The terraces were interpreted basing on digital elevation model [DEM] 1;10,000 and radars sweeping of the Earth’s surfaces [DETM level 2]. Moreover, the results of petrographical analysis of deposits exposed in the 22 high river terrace show two-tier structure of the terrace. This suggest a polygenetic age of the terrace. Within the last terrace fractured clasts and small-scale faults were observed. Fractured clasts were studied in the bottom part of the 22-m-high river terrace where numerous fractured clasts occur. This part of the terrace is composed of gravels containing clasts up to 80 cm across. The matrix is sandy-clayey. The fractures are usually restricted to particular clasts. The fractures compose two sets striking NW-SE and N-S. Gravels exposed in the uppermost part of the terrace are cut by few strike-slip, N-S striking, sub-vertical faults which can be traced along a vertical distance up to 50 cm. These faults cut the gravel matrix but omit clasts. Fractures cutting the clasts do show a well organized architecture which is independent of orientation of a-b surfaces of the host clasts. These features indicate that the fractures were formed in situ within the studied gravels. Furthermore, for the majority of fractures, the angle between the fracture and the a-b surface of the host clast is less than 80, confirming the in situ origin of fractures. The fractures of one set are parallel to the strike of the Sudetic Marginal Fault. This suggests that the origin of the fractures is related to that of the fault. The fractures of the second set may represent Riedel shears associated with the activity of the Sudetic Marginal Fault. The orientations of minor faults confirm this supposition. Summing up, we believe that during the Pleistocene, the Sudetic Marginal Fault was a dextral strike-slip fault, at least in the discussed area.
8
Content available remote Adaptacja ciągłego modelu odpływu w dorzeczu Nysy Kłodzkiej
EN
The application of a continuous with physically based parameters ENNS-runoff model for Nysa Kłodzka catchment is described in this article. The model is designed for different catchments and different time steps. At least it should be operational at daily basis and for smaller basins a hourly time step is recommendable. The model needs to be calibrated for a catchment before it can be used for practical applications. The ENNS-model is used to simulate the runoff process in a natural catchment based on data for precipitation and air temperature. The model computes snow accumulation, snowmelt, actual evapotranspiration, storage in soil moisture, groundwater and time delay for runoff in reservoirs and rivers in the catchment. It is a conceptual model, meaning that it is based on some considerations of the physical structure and processes in the catchment. Each subcatchment is treated as one unit. Within each subcatchment the subbasin is structured into zones with similar hydrological and meteorological characteristics. For the ENNS runoff model the Nysa subbasins are subdivided into 3 several elevation zones because of the influence of an obvious gradient in temperature and rainfall.
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