Impact of Urbanization on Stormwater Runoff from a Small Urban Catchment: Gdańsk Małomiejska Basin Case Study

• Autorzy: Olechnowicz B. , Weinerowska-Bords K.

Identyfikatory

DOI

10.1515/heem-2015-0009

• Języki publikacji: EN

Abstrakty

EN

This paper deals with the impact of different forms of urbanization on the basin outflow. The influence of changes in land cover/use, drainage system development, reservoirs, and alternative ways of stormwater management (green roofs, permeable pavements) on basin runoff was presented in the case of a small urban basin in Gdansk (Poland). Seven variants of area development (in the period of 2000-2012) - three historical and four hypothetical - were analyzed. In each case, runoff calculations for three rainfall scenarios were carried out by means of the Hydrologic Modeling System designed by Hydrologic Engineering Center of the U.S. Army Corps of Engineers (HEC-HMS). The Soil Conservation Service (SCS) Curve Number (CN) method was used for calculations of effective rainfall, the kinematic wave model for those of overland flow, and the Muskingum-Cunge model for those of channel routing. The calculations indicated that urban development had resulted in increased peak discharge and runoff volume and in decreased peak time. On the other hand, a significant reduction in peak values was observed for a relatively small decrease in the normal storage level (NSL) in reservoirs or when green roofs on commercial centers were present. The study confirmed a significant increase in runoff as a result of urbanization and a considerable runoff reduction by simple alternative ways of stormwater management.

Słowa kluczowe

EN

urban development; basin runoff; numerical modelling; green roofs; permeable pavement

• Wydawca: Institute of Hydro-Engineering of Polish Academy of Sciences
• Czasopismo: Archives of Hydro-Engineering and Environmental Mechanics
• Rocznik: 2014
• Tom: Vol. 61, nr 3-4
• Strony: 141–--162
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Olechnowicz B.

• Gdańsk University of Technology, Faculty of Civil and Environmental Engineering, Department of Hydraulic Engineering, ul. G. Narutowicza 11/12, 80-233 Gdańsk, Poland

autor

Weinerowska-Bords K.

• Gdańsk University of Technology, Faculty of Civil and Environmental Engineering, Department of Hydraulic Engineering, ul. G. Narutowicza 11/12, 80-233 Gdańsk, Poland

Bibliografia

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