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Impact of Urbanization on Stormwater Runoff from a Small Urban Catchment: Gdańsk Małomiejska Basin Case Study
Abstract
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 Gdańsk (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.
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- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1515/heem-2015-0004
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- Category:
- Articles
- Type:
- artykuły w czasopismach recenzowanych i innych wydawnictwach ciągłych
- Published in:
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Archives of Hydro-Engineering and Environmental Mechanics
no. 61,
pages 141 - 162,
ISSN: 1231-3726 - Language:
- English
- Publication year:
- 2014
- Bibliographic description:
- Weinerowska-Bords K., Olechnowicz B.: Impact of Urbanization on Stormwater Runoff from a Small Urban Catchment: Gdańsk Małomiejska Basin Case Study// Archives of Hydro-Engineering and Environmental Mechanics. -Vol. 61., iss. 3-4 (2014), s.141-162
- DOI:
- Digital Object Identifier (open in new tab) 10.1515/heem-2015-0004
- Verified by:
- Gdańsk University of Technology
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