DBPapers
DOI: 10.5593/SGEM2015/B31/S12.095

USING SWWM 5, FOR SURFACE RUNOFF MODELING UNDER CLIMATE CHANGES AND INFRASTRUCTURE

E.Petcovici, A. Girbaciu, C. Girbaciu, M. Pisleaga
Wednesday 23 September 2015 by Libadmin2015

References: 15th International Multidisciplinary Scientific GeoConference SGEM 2015, www.sgem.org, SGEM2015 Conference Proceedings, ISBN 978-619-7105-36-0 / ISSN 1314-2704, June 18-24, 2015, Book3 Vol. 1, 737-744 pp

ABSTRACT
In Romania, climate changes affects sectors such as agriculture, forestry, water management, residential and infrastructure sectors leading to vegetation periods changes and movement of the demarcation line between forests and grasslands. In the same time, climate changes cause the increase in frequency and intensity of the extreme weather events (storms, floods, droughts). Repeated and intense floods, is a hydrological phenomena characteristic for the rivers in Romania. A large part of water amount in rivers comes directly from rainfall, defined as surface runoff. The EPA Storm Water Management Model (SWMM) is a dynamic rainfall-runoff simulation model used for single event or long-term (continuous) simulation of runoff quantity and quality from primarily urban areas.
Low Impact Developments (LIDs) are becoming more common in new developments and are also being implemented in older subdivisions in order to promote infiltration, reduce storm water runoff and improve receiving water quality. As such, LID devices are typically used to
intercept, store and infiltrate some of the rainwater before it reaches the conveyance system.
The SWMM was used to simulate the quantity of storm water runoff from a catchment (i.e. 60 ha) in Timis county. The objectives of the study were to test the applicability of SWMM model in small urban catchments and provide appropriate input parameters to be used in planning studies. This paper presents changes in storm runoff resulting from the transformation of agricultural area into planned development area (urban area).

Keywords: storm water management, precipitation, urban areas, surface leakage, and hydrological phenomena.