IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 3: Water and Carbon: Climate Change Impact : Challenges in calibrating storm water management model (swmm) to a rural catchment
Challenges in calibrating storm water management model (swmm) to a rural catchment
Author : W.H.C. Subhashini1, G.A. Hewa1, and D. Pezzaniti2
Although U.S. Environmental Protection Agency’s Storm Water Management Model (SWMM) is an urban runoff model, its application in rural catchments is widely acceptable due to the flexibility of the model. SWMM is increasingly used in rural catchment for understanding future urbanization scenarios/impacts and investigating the effectiveness of Water Sensitive Urban design (WSUD) or Best Management Practice (BMP) measures. This paper discusses the complexity and the issues encountered when modeling hydrologic response of a rural catchment using SWMM and how these issues were managed to develop reliable model predictions. The challenges encountered include, modeling subsurface flow using the simple Groundwater module in SWMM, groundwater modeling with unknown aquifer properties and choosing the appropriate parameters and parameter spaces for model calibration. Scott Creek catchment in the Mount Lofty Ranges in South Australia was chosen as the study site to demonstrate how PEST (Parameter ESTimation), automatic calibration software was incorporated into SWMM and how the above issues were handled.
File Size : 302,382 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 3: Water and Carbon: Climate Change Impact
Date Published : 01/07/2011
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