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Proceedings of the International Association of Hydrological Sciences An open-access publication for refereed proceedings in hydrology

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Proc. IAHS, 373, 1-6, 2016
https://doi.org/10.5194/piahs-373-1-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
 
12 May 2016
A flexible and efficient multi-model framework in support of water management
Vincent Wolfs1, Quan Tran Quoc1, and Patrick Willems1,2 1KU Leuven, Hydraulics Division, Kasteelpark Arenberg 40 box 2448, 3001 Leuven, Belgium
2Vrije Universiteit Brussel, Department of Hydrology and Hydraulic Engineering, Brussels, Belgium
Abstract. Flexible, fast and accurate water quantity models are essential tools in support of water management. Adjustable levels of model detail and the ability to handle varying spatial and temporal resolutions are requisite model characteristics to ensure that such models can be employed efficiently in various applications. This paper uses a newly developed flexible modelling framework that aims to generate such models. The framework incorporates several approaches to model catchment hydrology, rivers and floodplains, and the urban drainage system by lumping processes on different levels. To illustrate this framework, a case study of integrated hydrological-hydraulic modelling is elaborated for the Grote Nete catchment in Belgium. Three conceptual rainfall-runoff models (NAM, PDM and VHM) were implemented in a generalized model structure, allowing flexibility in the spatial resolution by means of an innovative disaggregation/aggregation procedure. They were linked to conceptual hydraulic models of the rivers in the catchment, which were developed by means of an advanced model structure identification and calibration procedure. The conceptual models manage to emulate the simulation results of a detailed full hydrodynamic model accurately. The models configured using the approaches of this framework are well-suited for many applications in water management due to their very short calculation time, interfacing possibilities and adjustable level of detail.

Citation: Wolfs, V., Tran Quoc, Q., and Willems, P.: A flexible and efficient multi-model framework in support of water management, Proc. IAHS, 373, 1-6, https://doi.org/10.5194/piahs-373-1-2016, 2016.
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Water management is constantly evolving. Trends, such as population growth, urbanization and climate change, pose new challenges to water management. We developed a new and flexible modelling approach to generate very fast models of catchment hydrology, rivers and sewer systems that can be tailored to numerous applications in water management. To illustrate the developed framework, a case study of integrated hydrological-hydraulic modelling for the Grote Nete catchment in Belgium is elaborated.
Water management is constantly evolving. Trends, such as population growth, urbanization and...
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