Easy and accessible linking of hydrological and hydraulic models through OpenMI for integrated river basin management
0 likes281 views
The document discusses the integration of hydrological and hydraulic models using the Open Modeling Interface (OpenMI) for improved river basin management, specifically focusing on the River Zenne in Belgium. The study successfully linked the Soil and Water Assessment Tool (SWAT) and the Storm Water Management Model (SWMM) through OpenMI, demonstrating reasonable accuracy in flow predictions. Ultimately, this integrated approach serves as an effective decision support tool for water resource management in the region.
Easy and accessible linking of hydrological and hydraulic models through OpenMI for integrated river basin management
- 1. Easy and accessible linking of hydrological and hydraulic models through OpenMI for integrated river basin management L.T. Olkeba1; N.K. Shrestha1; B. De Fraine1; W. Bauwens1 1 Department of Hydrology and Hydraulic Engineering, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium. The modelling of the catchment processes is a key for integrated water resources management. Constructing a single model for all the catchment processes may not always be a feasible option and it does not make appropriate use of existing models. The Open Modeling Interface (OpenMI), which allows time-dependent models to exchange data at run-time, might just be useful for such proposes. We conducted this study on the river Zenne basin, Belgium to form an integrated modelling between the Soil and Water Assessment Tool (SWAT) and the Storm Water Management Model (SWMM), whereby the output of the SWAT model forms the input to the SWMM model. For this, both models were migrated to the OpenMI platform. Using the historical hydro-meteorolgical data record, the SWAT model was calibrated for the years 1998- 2007 and validated for the years 1988-1997. The predicted discharges showed that the model can reproduce flow hydrographs with reasonable accuracy. The reported model performance evaluation statistics in terms of Nash-Sutcliffe Efficiency was found to be 0.77 for the calibration and 0.48 for the validation periods. The SWAT model was sucessfully linked to the SWMM in the OpenMI platform. Flow and water levels records in a number of limnimetric locations along the river were used for calibrating and validating the SWMM model. Results showed that this development can sucessfully be used as a decision support tool for the water resources management plan of the river Zenne in particular and for water resouces management in general. Keywords: OpenMI, Integrated modelling, SWAT, SWMM, river Zenne, Belgium.