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Wyświetlanie 1-5 z 5
Tytuł:
The PIONEER-Project in the Odra Lagoon - modelIing the ecosystem with ERSEM
Autorzy:
Wolf, T.
Ruardij, P.
Powiązania:
https://bibliotekanauki.pl/articles/241101.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
Odra Lagoon
ecosystem
modelling
Ebro delta
Opis:
Article deals with the implementation and testing of short term forcast systems as well as the application of data assimilation schemes on ecosystem models. The goal is to forecast the hydrodynamical and bio-chemical conditions within two areas. These two areas - the Ebro delta and the Odra lagoon and river respectively are characterized by different hydrodynamical and climatological conditions as well as their present anthropological impact.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2001, 48, 3; 123-138
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of morphology changes on flow and water exchange in the Odra Estuary
Autorzy:
Jasińska, E.
Powiązania:
https://bibliotekanauki.pl/articles/241071.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
morphology changes
flow exchange
water exchange
Odra estuary
Opis:
Knowledge of the hydrodynamic conditions and the exchange of water in estuaries is important for ecological, navigational and water management reasons. The morpho-logy, river flow, sea level and local winds constitute important factors that influence the water currents and rate and extent of the mixing of salt and fresh water. The influence of the morphology changes on flow conditions, on the penetration of salt into the estuary and on the water exchange in the estuaries in this paper are analysed on the example of the Odra Estuary. The morphology of the Odra Estuary, and specially the Świna Strait, has changed immensely since the beginning of the XVIII century. The analyses were performed on the basis of data from in situ measure-ments and results of calculations. For the calculation the three-dimensional model ESTURO was used, because of the complexity of the hydrodynamic regimes and their three-dimensional character. The calculations were performed for the three different hydro-meteorological conditions for each of the five analysed morphological situations of the Odra Estuary. Some results of calculations have been presented.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2001, 48, 3; 33-57
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of bottom position changes in a lowland river on the basis of sediment transport
Autorzy:
Coufal, R.
Meyer, Z.
Powiązania:
https://bibliotekanauki.pl/articles/241067.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
Odra River
bed position
sediment transport rate
Ackers-White's method
Opis:
The paper present an analysis of changes in the Odra River bed position, which is based upon the evaluations of intensity of the sediment transport rate, which is spe-cified by the modified Ackers-White's method. The case of flow between groins and the change of hydraulic conditions has been presented for the newly designed longit-udinal dam. The analyses were carried out for different flow intensities, comparing the results achieved with the measurement in the Hohensaaten-Bielinek section.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2001, 48, 3; 7-16
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Real-time forecasting of water levels using adaptive neuro- fuzzy systems
Autorzy:
Gautam, D. K.
Holz, K. P.
Meyer, Z.
Powiązania:
https://bibliotekanauki.pl/articles/241104.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
real-time forecasting
high water levels
adaptive
neuro-fuzzy systems
Odra River
Opis:
Real-time forecasting of high water levels at the mouth section of the Odra river is important for the safety conditions of shipping, shipyard works, river banks pro-tection, flood control and overall management of aquatic environment in the area. While numerical hydrodynamic models offer one possible solution, such models require forecasting of all boundary conditions and forcing data, calibration of model parameters and are often too complex and time consuming. These models are not very suitable for real-time forecasting where fast solutions are required to provide ad-equate lead time. Simpler approaches offered by artificial intelligence methods such as artificial neural networks and fuzzy rule-based systems are thus becoming more attractive and promising alternatives. These methods provide a fast, sufficiently good and low-cost solution. In this paper, an application of Adaptive-Network-Based Fuzzy Inference System (ANFIS) is presented for real-time forecasting of water levels at Police on the mouth section of the Odra river.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2001, 48, 4; 3-21
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aspects of water quality and transport modelling in the Oder Estuary (Southern Baltic Sea): background, strategy and example
Autorzy:
Schernewski, G.
Neumann, T.
Podsetchine, V.
Wielgat, M.
Tejakusuma, I.
Powiązania:
https://bibliotekanauki.pl/articles/241098.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:
water quality
transport modelling
Odra estuary
Baltic Sea
coastal zone management
coastal water management
Opis:
Various types of utilization, conflicting interests and environmental problems call for coastal water management as part of an integrated coastal zone management. This is especially necessary for the Oder (Odra) estuary at the German/Polish border. The river Oder causes severe, ongoing and large scale eutrophication, which limits the ecological and economic value of its adjacent coastal ecosystems. Simulation models are an important tool with which to tackle these practical problems and support management. We present a general concept of a decision support system with an integration of sub-models. Two types of models for long-term water quality forecasts and scenario simulations, as well as short-term prediction of water pollution are available at present. Spatial human-pathogenic virus transport and decay simulations are used as an example to demonstrate their practical use.
Źródło:
Archives of Hydro-Engineering and Environmental Mechanics; 2001, 48, 3; 111-122
1231-3726
Pojawia się w:
Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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