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1

A typology of hydrological periods for use in river regime studies

100%

Rotnicka J.

Quaestiones Geographicae

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1989-1990

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tom 15-16

2

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Determining hypothetical floods in the Odra basin by means of the Cracow method and the volume formula

86%

Gadek W., Tokarczyk T.

Infrastruktura i Ekologia Terenów Wiejskich

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2015

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nr IV/4

3

Nonparametric design hydrograph in the gauged cross sections of the Vistula and Odra basin

86%

Gadek W. J., Baziak B., Tokarczyk T.

Meteorology Hydrology and Water Management. Research and Operational Applications

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2017

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tom 05

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nr 1

The Archer method for construction of nonparametric hydrographs was regarded as the basic one for constructing design hydrographs in gauged cross sections. The hydrographs designed using this method belong to a group of non-formalized hydrology. Unlike the commonly used formalized methods, where a nonparametric hydrograph is strictly determined and defined, the hydrographs defined in this way are constructed on the assumption, that flow is the main determined parameter. On the other hand, the Archer method assumes that the basic parameter is time, which is determined for assigned standardized flow, called a flow percentile. Hydrographs constructed using this method are the basis for constructing parametric design hydrographs used for engineering computations. The Archer method is relatively new and should be verified for various regions. Presented manuscript compares the results obtained using this method in the middle Odra and upper Vistula basins with the nonparametric method developed at the Cracow University of Technology, called the Cracow method. The obtained results show, that four highest registered flood waves are sufficient to construct a nonparametric design hydrograph, whereas semi-standardized volumes above descriptors W75 and W50 and the duration time of the descriptors are bigger than the volumes and duration times calculated by means of the Cracow method in the Vistula River basin, and approximate with regard to the values in the Odra River basin.

4

Changes in components to the water balance in the basins of the Vistula and Odra, 1901-2000

72%

Michalczyk Z., Paszczyk J.

Czasopismo Geograficzne

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2011

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tom 82

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nr 1-2

5

Assessment of water pollution by nitrates in the Middle Odra Basin

72%

Kolanek A., Korol R., Stronska M., Szyjkowska U.

Journal of Water and Land Development

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2007

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nr 11

6

GIS-based distributed analysis of subsurface nitrogen flow in the Odra Basin

72%

Dannowski R., Steidl J., Mioduszewski W., Kajewski I.

Journal of Water and Land Development

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2002

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nr 06

Agricultural nitrogen surplus is the main non-point source of nitrates in groundwater and thus accounts for the most sustaining component of the surface waters nitrogen load. To analyse the underlying processes at the catchment scale, an efficient GIS-based approach has been developed called MODEST - Modelling Diffuse Entries via Subsurface Trails. Grid techniques allow for process-oriented distributed modelling the long-term transport and degradation of dissolved nitrate along the underground passage through the unconsolidated rock region. Highly differentiated regional studies are feasible with reasonable computing time. A database has been compiled for the transnational Odra Basin containing digital information of land use, nitrogen balance, water budget, soils, groundwater table, and the river network. MODEST was calibrated and validated using calculated historical nitrogen balances as well as discharge values and N concentrations recently measured in rivers of selected catchments between 500 and 5,000 km2 in Poland and Germany. Case studies were performed for the present state of subsurface nonpoint source nitrogen flows in the Odra River basin and for scenarios with modified nitrogen surplus. Results have been evaluated in terms of the nitrogen load potentially to be received by the rivers.

7

Lampreys and fishes of the upper and middle Odra Basin [Silesia, SW Poland] - The present situation

72%

Witkowski A., Blachuta J., Kotusz J., Kusznierz J.

Acta Hydrobiologica

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2000

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tom 42

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nr 3-4

8

Stratigraphy of organic-rich deposits in floodplain environments: examples from the upper Odra River basin

58%

Wojcicki K. J.

Quaestiones Geographicae

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2012

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tom 31

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nr 3

9

Rejonizacja potrzeb nawadniania w dorzeczu Odry i rzek Przymorza Zachodniego

58%

Marcilonek S., Nyc K.

Zeszyty Problemowe Postępów Nauk Rolniczych

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1990

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tom 387

На преобладающей части сельскохозяйственных угодий (СУ) бассейна р, Одры, за исключением Судет уже в средние годы выступают нехватки воды от 20 до 135 мм. В настоящее время охватывают 192 тыс.га (3% СУ). Учитывая величины водных недостатков, природные и сельскохозяйственные условия, были установлены вариантные потребности в орошениях. Потенциальный вариант предусматривает орошение на площади 1875,4 тыс. га (29% СУ), а оптимальный вариант 1219,0 тыс га (19%СУ) Водная потребность брутто для осуществления этой программы будет составлять: а) для потенциального варианта - в средние годы (50%) 2245,4 млн м³ - в сухие годы (10%) 4738.5 млн м³ б) для оптимального варианта - в средние годы 1478,0 млн м³ - в сухие годы 3063.5 млн м³

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