Wyniki wyszukiwania

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Modelowanie odplywu bezposredniego w zaleznosci od stanow pokrycia zlewni lesnej

100%

Okonski B.

Rozprawy Naukowe. Akademia Rolnicza im. Augusta Cieszkowskiego w Poznaniu

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2006

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nr 374

1-88

2

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Wyznaczenie czasu opóźnienia odpływu bezpośredniego w zlewni Potoku Służewieckiego na podstawie danych pomiarowych

63%

Sikorska A., Banasik K.

Przegląd Naukowy. Inżynieria i Kształtowanie Środowiska

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2008

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tom 17

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nr 4[42]

The main goal of this article was estimation of the lag time of direct runoff in Służew Creek catchment, located in Warsaw (Poland). To calculations there were used measured data of rainfall (Okęcie rain gauging station) and data of direct runoff at the Berensewicz Pond water gauge. The IUH based on the Nash model, in which catchment is shown as a cascade of N linear reservoirs with retention parameter k of each reservoir, was used to transform effective rainfall into direct runoff. Effective rainfall of each recorded event was estimated with two methods: exponential formula and CN-SCS method. Analysis was conducted for one hydrological year (2007), for events with water level higher than 0.75 m, which corresponds with discharge about 1 cubic meter per second. As a result of this analysis, there was stated, that two estimation methods gave different output and estimated mean lag time of direct runoff for CN- -SCS method (3.77 h) was longer than for the exponential formula (3.37 h). This case study was the part of the fi rst author’s master thesis, written at the Department of Water Engineering and Environmental Restoration (Warsaw University of Life Sciences – SGGW), entitled: “Analysis of fl ood discharges in the Służew Creek catchment at the water gauge of Berensewicz Pond”.

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Czas opoznienia odplywu wezbraniowego z malej zlewni rolniczej

63%

Banasik K., Barszcz M.

Przegląd Naukowy Wydziału Inżynierii i Kształtowania Środowiska

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2000

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nr 19

15-24

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Modelowanie hydrogramow wezbran deszczowych w malych zlewniach niekontrolowanych za pomoca modelu opad- odplyw

51%

Ostrowski J.

Monografie Komitetu Gospodarki Wodnej PAN

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1994

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nr 5

127-150

5

Wpływ pożaru lasu na czas opóźnienia odpływu bezpośredniego wód opadowych z małej zlewni w Kalabrii

51%

Cogliandro V., Krajewski A., Rutkowska A., Porto P., Banasik K.

Sylwan

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2017

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tom 161

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nr 08

Hydrological processes in forested areas such as runoff and erosion after heavy rainfalls are sensitive to changes in land surface properties that can be significantly modified by fire. Rainfall−runoff events recorded in a small forested catchment in Calabria (southern Italy), of area of 1.36 hectare, in the period of 2014−2015, were analyzed to check differences in lag time of direct runoff, i.e. the basic characteristics in rainfall−runoff modelling, before and after the forest fire. Lag time, defined as the elapsed time between the occurrence of the centroids of the effective rainfall intensity hyetograph and the storm runoff hydrograph, was computed with the use of two methods of effective rainfall estimation, i.e. CN−SCS (Soil Conservation Service) and Duband method. In the first one effective rainfall starts after no runoff period, when rain water is used for interception, filling local depressions and high infiltration. In the other one, effective rainfall starts at the beginning of rain and then increases more gentle than in the first method. The results show that in response to the forest fire, the average lag time was reduced to 28% of the average value representative for original conditions when CN−SCS method was used (from 0.530 h before the forest fire to 0.145 h after the fire) and to 38% when the other method was used (from 0.637 h to 0.243 h, respectively). Significance of the differences in lag time was confirmed statistically with Mann−Whitney U test. The results of the investigation, i.e. reduction of lag time, and in consequence higher value and earlier appearance of peak discharge, confirm the thesis that forest fire would increase the risk of flood flows.

6

Analiza wpływu wielkości uszczelnienia terenu na hydrogram odpływu ze zlewni

38%

Kolodziejczyk K.

Acta Scientiarum Polonorum. Formatio Circumiectus

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2016

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tom 15

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nr 4

Ograniczanie wyników

1 Acta Scientiarum Polonorum. Formatio Circumiectus

1 Monografie Komitetu Gospodarki Wodnej PAN

1 Przegląd Naukowy Wydziału Inżynierii i Kształtowania Środowiska

1 Przegląd Naukowy. Inżynieria i Kształtowanie Środowiska

1 Rozprawy Naukowe. Akademia Rolnicza im. Augusta Cieszkowskiego w Poznaniu

1 Sylwan

3 Banasik K.

1 Barszcz M.

1 Cogliandro V.

1 Kolodziejczyk K.

1 Krajewski A.

1 Okonski B.

1 Ostrowski J.

1 Porto P.

1 Rutkowska A.

1 Sikorska A.

1 2017

1 2016

1 2008

1 2006