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Verification of empirical formulas for calculating annual peak flows with specific return period in the Upper Vistula basin

100%

Mlynski D., Walega A., Petroselli A.

Acta Scientiarum Polonorum. Formatio Circumiectus

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2018

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tom 17

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nr 2

The study evaluated the selected empirical formulas for calculating annual peak flows with specific return period (QT ) in southern Poland. Data used in the calculations in the form of observation series of peak annual flows were derived from the Institute of Meteorology and Water Management in Warsaw and covered a multi-year period of 1986-2015. The data were statistically verified for their homogeneity, significance of monotonic trends, outliers, and equality of variance. Peak flows with set return period were estimated with a statistical method of Pearson Type III distribution and empirical formulas (area regression equation and Punzet formula). The analysis showed significant differences between QT for the investigated catchments derived from the statistical method and empirical formulas. This was evidenced by the values of mean relative errors of quantile estimation that reached 64% for the Punzet formula, and 62% for area regression equation. The obtained results indicated the need to update the empirical formulas used for calculating QT in the Upper Vistula region.

2

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Predicted small catchment responses to heavy rainfalls with SEGMO and two sets of model parameters

88%

Krajewski A., Lee H., Hejduk L., Banasik K.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2014

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tom 46

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nr 3

The study tests the ability of hydrological part of SEGMO (SedimentGraph Model), i.e. lumped parametric rainfall-runoff procedure of SEGMO to simulate design storm runoff in a Korean catchment. The aim of the investigation is to predict responses of small catchment of the Jeungpyeong river, located in central part of South Korea, with the area of 133.6 km2, to 100-year rainfall events, applying SEGMO and using two parallel approaches for model parameter estimation. The first approach is based on catchment characteristics and USDA-SCS procedures, which is suitable for ungauged basins, and the other one is based on rainfall-runoff measurements. The way of estimation of model parameters has been demonstrated. Finally, the model outputs are compared. The difference in largest peak discharges obtained from SEGMO with the two sets of model parameters, i.e. when estimated on the base of catchment characteristics and USDA-SCS procedures, and on the base of rainfall-runoff measurements were relatively small, approaching 37%. This investigation can be seen as checking the uncertainties in model parameter estimation and their influence on flood flows.

3

Attempt at implementing the 2015 "Ecological flow assessment method for Poland" in the Wieprza river catchment

75%

Puslowska-Tyszewska D., Tyszewski S.

Acta Scientiarum Polonorum. Formatio Circumiectus

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2018

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tom 17

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nr 4

4

Changes in the range of forests and the use of lands in the catchments of small lower Wieprza tributaries in historical times

75%

Majewski M., Florek W., Daleki D.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

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2018

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tom 22

The subject of the study were changes in land use over the last 400 years, including forest areas. The research covered the area, the range of which is determined by the basins of three small left-bank tributaries of the Wieprza River and its direct catchments (Northern Poland). The analysis included selected historical sources and, above all, maps issued in the years 1618-2008. It was found that in the studied area the border between forest and non-forest areas was established in the Middle Ages and subsequent changes in its course were of evolutionary nature. Until the midnineteenth century there was significant decline in forest area, which was related to the acquisition of areas mainly for arable fields as well as meadows and pastures. Subsequent changes of forest areas, studied for periods 1836-1934 and 1934-2008 were relatively small, but they were accompanied by significant modifications of the forest species composition. Relatively the biggest changes in the last distinguished period included built-up areas with orchards, where a decrease in occupied areas of almost 25% was noted.

5

Efficacy of time-area method in simulating temporal variation of sediment yield in Chehelgazi watershed, Iran

75%

Khaledi Darvishan A. V., Sadeghi S. H. R., Gholami L.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2010

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tom 42

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nr 1

51-60

The proper prediction of temporal and spatial variation of sediment yield from the watershed is a need for sediment control, river engineering and soil and water conservation studies. The present study was therefore planned to simulate the sediment graphs for Chehelgazi watershed in Gheshlagh dam upstream in Kurdistan Province, Iran, by using Time-Area Method. Towards this attempt, the study watershed was divided into 7 time-area segments based on the time of concentration. The soil erosion in each segment was estimated using the USLE and then routed to the main outlet using sediment delivery ratio as a function of land slope in two adjacent time-areas. The temporal variation of sediment was ultimately predicted with the help of lag time of sediment arrival to the outlet and the concept of superposition for 11 storm events, which occurred during winter 2006 and spring 2007. The comparison between estimated sediment graphs with corresponding observed ones verifi ed the weak capability of the model in simulation of sediment graphs under consideration. The results also verifi ed the calibration necessity of the model to achieve appropriate estimation for important components of the sediment graphs. The results of the calibration fi nally proved the considerable capability of the model in predicting of total volume of sediment yield with respective estimation and verifi cation errors of 30.93 and 33.40%.

6

Surface and groundwater drought evaluation with respect to aquatic habitat quality applied in Torysa River catchment, Slovakia

63%

Fendekova M., Demetrova B., Slivova V., Macura V., Fendek M., Machlica A., Gregor M., Jalcovikova M.

International Journal of Ecohydrology and Hydrobiology

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2011

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tom 11

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nr 1-2

7

Reduction of zooplankton communities in small lake outlets in relation to abiotic and biotic factors

63%

Czerniawski R., Domagala J.

Oceanological and Hydrobiological Studies

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2013

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tom 42

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nr 2

8

Wyznaczanie stopnia zeutrofizowania powierzchniowych wod plynacych na przykladzie zlewni rzeki Baryczy

63%

Melcer B., Gorecki K.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2006

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tom 513

265-276

W pracy przedstawiono wielkość ładunku związków biogennych odprowadzanych ze zlewni cząstkowych dorzecza Odry. Wykazano zależność wielkości ładunku związków azotu transportowanych wodami największych rzek w zlewni Baryczy od warunków klimatyczno-hydrologicznych ich zlewni. Przeprowadzone badania wykazały istotną zależność ładunku azotu ogólnego i azotanowego od wielkości przepływu wody i opadów półrocza zimowego. Zaproponowano nowy sposób wyznaczania zeutrofizowanych powierzchniowych wód płynących, oparty o wielkość jednostkowych ładunków azotu i fosforu ogólnego, transportowanych z obszaru zlewni rzecznej. Zgromadzone wyniki pochodzą z prowadzonych badań własnych oraz danych Państwowego Monitoringu Środowiska i obejmują lata hydrologiczne 1992/1993-2001/2002.

9

Modelling of discharge, nitrate and phosphate loads from the Reda catchment to the Puck Lagoon using SWAT

63%

Marcinkowski P., Piniewski M., Kardel I., Gielczewski M., Okruszko T.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2013

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tom 45

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nr 2

This study presents an application of the SWAT model (Soil and Water Assessment Tool) in an agricultural, coastal catchment situated in northern Poland, draining an area of 482 km2 (the Reda catchment). The main objective of this study was calibration and validation of the model against daily discharge and water quality parameters (bi-monthly total suspended solids [TSS], nitrate nitrogen [N-NO3] and phosphate phosphorus [P-PO4] loads). Calibration and validation were conducted using the SWAT-CUP program and SUFI-2 (Sequential Uncertainty Fitting Version 2) algorithm. The Nash-Sutcliffe effi ciency, which was set as an objective function in calibration of all variables, was equal for discharge to 0.75 and 0.61 for calibration and validation periods, respectively. For TSS, N-NO3 and P-PO4 loads NSE was equal to 0.56, 0.62 and 0.53 in calibration period, and 0.22, 0.64 and –1.78 in validation period, respectively. For the calibration period all the results are satisfactory or good, while for the validation period the results for TSS and P-PO4 loads are rather poor, which is related mainly to the lack of homogeneity between calibration and validation periods. These results demonstrate that SWAT is an appropriate tool for quantifi cation of nutrient loads in Polish agricultural catchments, in particular for N-NO3. The model can therefore be applied for water resources management, for quantifi cation of scenarios of climate and land use change, and for estimation of the Best Management Practices efficiency.

10

Recorded lag times of snowmelt events in a small catchment

63%

Hejduk A., Banasik K.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2011

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tom 43

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nr 1

The hydrological and meteorological data collected in small, lowland catchment during snowmelt floods have been used to calculate lag time of runoff (Lag) and lag time of sediment yield (Lags). Both, Lag and Lags are important characteristics of the instantaneous unit hydrograph (IUH) and instantaneous unit sedimentgraph (IUSG). Field data from Zagożdżonka River catchment have been used to demonstrate the relationship between lag times. The results of investigation show that: a) there is a strong relationship between Lag and Lags; b) in most cases the value of a= Lags/Lag is smaller than 1; c) in case of snowmelt floods there was only poor correlation between parameter a and the total runoff depth (water supply).

11

The Shuttle Radar Topography Mission Digital Elevation Model as an alternative data source for deriving hydrological characteristics in lowland catchment - Rogozynek catchment case study

63%

Wasilewski M., Chormanski J.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2009

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tom 41

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nr 1

12

Interactions between river catchments and the coastal zone: The EuroCat-VisCat project

63%

Buszewski B., Kowalska J., Pacyna J., Kot A., Namiesnik J.

Oceanological Studies

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2002

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tom 31

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nr 1-2

13

Numerical modelling of groundwater flow for an aquifer in a small river catchment

63%

Lieber A., Mioduszewski W.

Journal of Water and Land Development

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2002

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nr 06

Numerical models are not only applied for predictions but also with the aim to improve the understanding of certain geological and hydrogeologie conditions. In this case of a three dimensional flow pattern to a small brook in the catchment area of the Raszyn Ponds nearby Warsaw the numerical groundwater flow model MODFLOW was used to: 1. Verify the conceptional understanding of the area in order to prove if a hydrogeologie window exists which is feeding the present aquifer. 2. Calculate travelling times of groundwater from the upper agriculturally used part of the aquifer to an experimental field in the lower part of the basin. The realisation of the hydrogeologie window in MODFLOW is described as well as the verification of the assumed conception, and results from travelling time calculations are shown.

14

Evaluation of hydrosphere state of the Dniester River catchment

63%

Lebedynets M., Sprynskyy M., Kowalkowski T., Buszewski B.

Polish Journal of Environmental Studies

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2005

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tom 14

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nr 1

This contribution presents the current state of the environment in the largest river basin of West Ukraine, the Dniester, on the background of the total river system of Ukraine. According to the results of the hydroand lithochemical investigations performed during the period of 1995-2001, the Dniester River system is in a satisfactory state according to total macrocomponents composition, nitric compounds and heavy metals content. But ground waters of the region are regionally polluted by nitrate-ions, thanks to the wide use of mineral fertilizers, wastewaters of animal farms and municipal sewage. Surface waters of the Dniester River, its tributaries and the Dniester Reservoir are strongly regionally polluted by phenols and oil-products, that may be connected with man-made as well as natural factors.

15

Identifying runoff source areas in a small lowland catchment using the topographic wetness index

63%

Szymczak T., Szelenbaum C.

Journal of Water and Land Development

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2003

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nr 07

16

Nutrient output from rural areas on the example of two catchments Skuterud and Zagozdzonka

51%

Sawa K., Hejduk L., Deelstra J., Oygarden L.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

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2011

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tom 43

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nr 1

In this paper, two rural catchment- the Zagożdżonka catchment in Poland and the Skuterud catchment in Aas, Akershus county in Norway are compared. In addition to the general description, more in particular information, runoff, NO3 load, P-PO4 load, total phosphorus and total nitrogen concentrations in streams are compared. The data compared are from 1993 to 1995 in Zagożdżonka catchment and from 1994- 1996 from Skuterud catchment. The average concentration of N-NO3 in Zagożdżonka River in the period was 0.85 mg•1-1 and the mean concentration of P-PO4 was 0.13 mg•l-1. In the stream in Skuterud catchment the average concentration of N-NO3 was 4.95 mg•1-1 and the mean concentration of P-PO4 was 0.04 mg•l-1. For both catchments the same data were also compared for the 2008. In Skuterud catchment the highest concentration of nutrients occurred in November, March and April, which was connected to the higher runoff from agricultural areas during the snowmelt period. In Zagożdżonka catchment the highest concentration of nutrients was noted in March, April and in summer time, which was connected to periods with high amounts of precipitation. Comparison of the two rural catchments showed many differences in applied measurement methods for water sampling, water measurement, discharge measurement, runoff amounts and management practices, which had an effect on results of monitoring program. The compared data can be useful to predict the development of future environmental conditions for example water quality. It can also be useful for predict how nutrient runoff will be in future. What is more the different conditions for runoff in Skuterud and Zagożdżonka then different measures are needed.

17

The importance of fish ponds in the “Mala Wisla” River catchment (Southern Poland)

51%

Lewkowicz S., Kuczynski M., Pilarczyk M.

Oceanological and Hydrobiological Studies

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2008

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tom 37

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nr Suppl.1

18

Zmienność przepływów małej rzeki nizinnej

51%

Kanclerz J., Murat-Blazejewska S., Sojka M.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2008

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tom 528

W pracy przedstawiono zmienność przepływów rzeki Małej Wełny do przekroju Kiszkowo (o powierzchni zlewni 342 km²) w latach 1965-2005. Porównanie rocznych przepływów charakterystycznych w trzech wieloleciach: 1965-1975, 1978-1983 i 2000-2005 wykazało wyraźne zmniejszenie zasobów wodnych rzeki Małej Wełny w ostatnim wieloleciu. Średni roczny przepływ w wieloleciu 2000-2005 (SSQ = 0,454‧ m³×s⁻¹) był niższy od średnich rocznych przepływów w dwóch wcześniej omawianych wieloleciach (ponad 1,5-krotnie niższy niż w wieloleciu 1965-1975 i ponad 3-krotnie w wieloleciu 1978-1983), na co wpływ miała gospodarka wodna kompleksu stawów rybnych zasilanego wodami rzeki. Wskaźnik zaburzenia hydrologicznego w postaci bezwzględnej, obliczony jako wartość dopełnienia do jedności stosunku przepływu SSQ z ostatniego wielolecia i przepływu SSQp z wielolecia „pseudonaturalnego” (1965-1975), wyniósł 38% przy progowej wartości 10%, co świadczy o istotnych zmianach w zagospodarowaniu części wód w zlewni.

19

Wplyw oczyszczalni sciekow na stezenie zwiazkow azotu w wodach rzek z obszaru zlewni Gornej Narwi

51%

Skorbilowicz M.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2006

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tom 513

397-403

W pracy podjęto próbę określenia wpływu oczyszczalni ścieków w wyniku zrzutu ścieków oczyszczonych do wybranych cieków w obszarze zlewni górnej Narwi na jakość ich wód pod względem stężenia amonu oraz azotanów(III) i (V). Badania prowadzono w latach 2005-2006 na obszarze zlewni górnej Narwi. Do analiz wybrano rzeki i strumienie, które są odbiornikami ścieków oczyszczonych z oczyszczalni ścieków obsługujących osiedla i miasta. Próbki wody pobierano jeden raz w miesiącu z punktów zlokalizowanych na każdym cieku przed zrzutem i za zrzutem ścieków odprowadzanych przez daną oczyszczalnię. Badano również próbki ścieków oczyszczonych z każdej oczyszczalni. W każdej próbce oznaczano stężenie amonu, azotanów(III) i (V) metodami kolorymetrycznymi. Oczyszczalnie ścieków w obszarze zlewni górnej Narwi wywołują wyraźne zmiany stężenia amonu i mniej wyraźne azotanów(III), mające swoje odzwierciedlenie w zmianach klas jakości wód powierzchniowych.

20

Zmiennosc przeplywow w ciekach malych zlewni nizinnych o zroznicowanym zasilaniu i stopniu lesistosci na tle warunkow meteorologicznych

51%

Stasik R., Szafranski C., Korytowski M., Liberacki D.

Acta Scientiarum Polonorum. Formatio Circumiectus

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2007

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tom 06

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nr 1

15-25

Ograniczanie wyników

Verification of empirical formulas for calculating annual peak flows with specific return period in the Upper Vistula basin

Predicted small catchment responses to heavy rainfalls with SEGMO and two sets of model parameters

Attempt at implementing the 2015 "Ecological flow assessment method for Poland" in the Wieprza river catchment

Changes in the range of forests and the use of lands in the catchments of small lower Wieprza tributaries in historical times

Efficacy of time-area method in simulating temporal variation of sediment yield in Chehelgazi watershed, Iran

Surface and groundwater drought evaluation with respect to aquatic habitat quality applied in Torysa River catchment, Slovakia

Reduction of zooplankton communities in small lake outlets in relation to abiotic and biotic factors

Wyznaczanie stopnia zeutrofizowania powierzchniowych wod plynacych na przykladzie zlewni rzeki Baryczy

Modelling of discharge, nitrate and phosphate loads from the Reda catchment to the Puck Lagoon using SWAT

Recorded lag times of snowmelt events in a small catchment

The Shuttle Radar Topography Mission Digital Elevation Model as an alternative data source for deriving hydrological characteristics in lowland catchment - Rogozynek catchment case study

Interactions between river catchments and the coastal zone: The EuroCat-VisCat project

Numerical modelling of groundwater flow for an aquifer in a small river catchment

Evaluation of hydrosphere state of the Dniester River catchment

Identifying runoff source areas in a small lowland catchment using the topographic wetness index

Nutrient output from rural areas on the example of two catchments Skuterud and Zagozdzonka

The importance of fish ponds in the “Mala Wisla” River catchment (Southern Poland)

Zmienność przepływów małej rzeki nizinnej

Wplyw oczyszczalni sciekow na stezenie zwiazkow azotu w wodach rzek z obszaru zlewni Gornej Narwi