Changing the Course of Rivers in an Asian City: Linking Landscapes to Human Benefits through Iterative Modeling and Design |
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| Authors: | Derek Vollmer Diogo Costa Ervine Shengwei Lin Yazid Ninsalam Kashif Shaad Michaela F Prescott Senthil Gurusamy Federica Remondi Rita Padawangi Paolo Burlando Christophe Girot Adrienne Grêt‐Regamey Joerg Rekittke |
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| Affiliation: | 1. Department of Civil, Environmental, and Geomatic Engineering, Swiss Federal Institute of Technology Zurich (ETH Zurich), Zurich, Switzerland;2. Department of Civil and Environmental Engineering, National University of Singapore, Singapore;3. Department of Architecture, Swiss Federal Institute of Technology Zurich (ETH Zurich), Zurich, Switzerland;4. Department of Architecture, National University of Singapore, Singapore;5. Asia Research Institute, National University of Singapore, Singapore |
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| Abstract: | Concerns over water scarcity, climate change, and environmental health risks have prompted some Asian cities to invest in river rehabilitation, but deciding on the end goals of rehabilitation is a complex undertaking. We propose a multidisciplinary framework linking riparian landscape change to human well‐being, providing information relevant to decision makers, in a format that facilitates stakeholder involvement. We illustrate this through a case study of the densely settled, environmentally degraded, and flood prone Ciliwung River flowing through metropolitan Jakarta, Indonesia. Our methodology attempts to respond to this complexity through an iterative approach, strongly based on conceptualization and mathematical modeling. Nested hydrologic, hydrodynamic, and water quality models provide outputs at catchment‐, corridor‐, and localized site‐scales. Advanced 3‐D landscape modeling is used for procedural design and precise visualization of proposed changes and their impacts, as predicted by the mathematical models. Finally, participatory planning and design methods allow us to obtain critical stakeholder feedback in shaping a socially acceptable approach. Our framework aims at demonstrating that a change in paradigm in river rehabilitation is possible, and providing future scenarios that balance concerns over flooding, water quality, and ecology, with the realities of a rapidly growing megacity. |
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| Keywords: | multidisciplinary framework river rehabilitation ecosystem services simulation urbanization flooding |
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