Is the hydrological function of Lake Wigry changing?

Bajkiewicz-Grabowska, Elżbieta

doi:10.1515/limre-2015-0006

Cited by 7 publications

(19 citation statements)

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“…Regression relationships between IUH model parameters and physiographic catchment parameters for Poland were generated by Bajkiewicz-Grabowska [3]. An attempt was also made to employ the geomorphologic instantaneous unit hydrograph (GIUH) to help estimate the N and k parameters for the Nash Model [12].…”

Section: Methodsmentioning

confidence: 99%

“…According to Bajkiewicz-Grabowska [3], the N and k parameters of the Nash Model are calculated based on physiographic parameters. The equation was formulated based on a study of 48 catchments in Poland and covers six physiographic parameters of the stream and catchment.…”

Section: Eko-dok 2017mentioning

confidence: 99%

“…These parameters were identified based on their relevance in the formation of surface runoff. The parameters represent four basic groups of catchment characteristics: (1) catchment geometry, (2) relief, (3) river network and drainage conditions, (4) land use [3,4].…”

Section: Eko-dok 2017mentioning

confidence: 99%

“…This model treats a catchment as a cascade of N linear reservoirs connected in a sequence, where the first reservoirs is recharged by effective rainfall, and subsequent reservoirs are recharged with water by previous reservoir. The instantaneous unit hydrograph [1,3,4,5] is obtained at the mouth of the last reservoir in this sequence of reservoirs. The Nash Model is a twoparameter model whose parameters are k or storage parameter of each reservoir and N -the number of reservoirs.…”

Section: Introductionmentioning

confidence: 99%

“…This paper provides an analysis of the usefulness of two methods for calculating the N and k parameters of the Nash Model: (1) Rao et al method [6], (2) relationships developed by Bajkiewicz-Grabowska [3] for the transformation of effective rainfall into discharge.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of the impact of a parameter estimation method for the Nash Model on selected parameters of a catchment discharge hydrograph

Kołodziejczyk

2017

E3S Web Conf.

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Abstract. An analysis of the usefulness of two parameter calculation methods (N and k parameters) for the Nash Model was performed to transform effective rainfall into discharge based on two rainfall episodes gauged at the Kostrze gauging station as well as urban development data for the city of Cracow for 2014 and data obtained from a soil and agriculture map. The methods were the Rao et al. method and the Bajkiewicz-Grabowska method for regression relationships between instantaneous unit hydrograph model parameters and the physiographic parameters of a catchment. Effective rainfall was calculated for each rainfall episode using the SCS-CN method. A direct discharge hydrograph was calculated based on an effective rainfall hyetograph and using the Nash Model. Research has found that both studied methods yield comparable results, which indicates that both methods of effective rainfall transformation into discharge are useful. In addition, it has been shown that the impact of the Nash Model parameter estimation method on discharge hydrographs is minimal.

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Section: Methodsmentioning

confidence: 99%

Section: Eko-dok 2017mentioning

confidence: 99%

Section: Eko-dok 2017mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessment of the impact of a parameter estimation method for the Nash Model on selected parameters of a catchment discharge hydrograph

Kołodziejczyk

2017

E3S Web Conf.

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Evaluation of Chemical and Physico-Chemical Indicators of Water in Miedwie Lake (North-West Poland)

Daniszewski¹

2014

Asian J. Chem.

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After the accession of Poland to the European Union is committed to the implementation of the European Union Water Framework Directive (2000/60/EC), whose main objective is to achieve good ecological status by 2015 and chemical surface waters 1-4. Evaluation of the quality of the structure and functioning of aquatic ecosystems, by comparing the status of an existing undisturbed conditions expected in status (reference), is a requirement for monitoring and evaluation systems of classification by the European Directive 2000/60/EC, known as the European Union Water Framework Directive 5,6. Urbanization is the cause of many changes which are taking place in the environment, including those found in the catchment. With this in mind, it is an important issue to properly protect water reservoirs and also take action to counter the adverse effects of human activities on the natural environment, including water bodies. The ecological status of surface waters and groundwater is assessed on the basis of the ecological potential of the biological and physico-chemical and hydromorphological indicators.

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Quality of Water in Dabie Lake (North-West Poland) During Different Seasons (2008-2012)

Daniszewski¹

2014

Asian J. Chem.

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This paper presents the evaluation of physico-chemical parameters of lake water in Dabie Lake based on the European Union Water Framework Directive.The research was carried out in the years 2008-2012, between April and October. From each of the three measuring stations located in the lake included the study, two separate water samples were taken for chemical analysis. Dabie Lake is located within the administrative borders of the city of Szczecin. It constitutes a large sedimentation basin being a part of hydrographically complex Odra river estuary (the other one is Zalew Szczecinski-the Szczecin Lagoon). The accumulation of allochthonous and autochthonous sediments has taken place in these basins for few thousand years. The studied lake had pH values in the neutral range from 7.65 to 7.87. According to the classification of the European Union Water Framework Directive, all lake were classified as first class. By analyzing the average annual values, one can note that pH, O2diss and NO3concentration showed a relatively small variation in all the investigated lake. The total suspended solids in Dabie Lake, fell into the II class. The Ptot. concentrations in the surface layer of lake was little differentiated, reaching the levels appropriate for III quality class. The total phosphorus concentration was 0.41-0.69 mgP dm -3 . The concentrations of PO4 3diss in the tested lake waters varied more significantly corresponding to water quality classes ranging from IV. The concentrations saturation with O2 was 44.8-96.4 %. In case of nitrogen compounds, nitrates and nitrites values for these indicators fell into the I and II class in all the surveyed lake. The indicator which proves high productivity of lake is biochemical oxygen demand (BOD5). The level of this indicator in the studied Lake Dabie was at level III. The highest concentration of oxygen in lake waters was found in Lake Dabie about 8.6 mg O2 dm -3 .

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Is the hydrological function of Lake Wigry changing?

Cited by 7 publications

References 0 publications

Assessment of the impact of a parameter estimation method for the Nash Model on selected parameters of a catchment discharge hydrograph

Assessment of the impact of a parameter estimation method for the Nash Model on selected parameters of a catchment discharge hydrograph

Evaluation of Chemical and Physico-Chemical Indicators of Water in Miedwie Lake (North-West Poland)

Quality of Water in Dabie Lake (North-West Poland) During Different Seasons (2008-2012)

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