Assessment of urban pluvial flood risk and efficiency of adaptation options through simulations – A new generation of urban planning tools

Löwe, Roland; Urich, Christian; Domingo, Niña Donna Farpale Sto.; Mark, Ole; Deletić, Ana; Arnbjerg‐Nielsen, Karsten

doi:10.1016/j.jhydrol.2017.05.009

Cited by 158 publications

(122 citation statements)

References 60 publications

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“…A widely used approach is to analyze urban pluvial flooding through hydrodynamic models (Van Bijnen et al, 2012;Candela and Aronica, 2016;Guerreiro et al, 2017;Löwe et al, 2017;Ochoa-Rodriguez et al, 2015;Palla et 5 al., 2016;Thorndahl et al, 2016). Hydrodynamic models include the interaction between overland flows and sewer flows and are usually based on the Saint Venant equations to model flood wave propagation (Ochoa-Rodriguez et al, 2015;Palla et al, 2016;Thorndahl et al, 2016).…”

Section: Approaches To Quantifying Urban Pluvial Flooding Occurrence mentioning

confidence: 99%

Towards identification of critical rainfall thresholds for urban pluvial flooding prediction based on crowdsourced flood observations

Bouwens

Veldhuis

Schleiss

et al. 2018

Preprint

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Urban drainage systems are challenged by both urbanization and climate change, intensifying urban pluvial flooding impacts. Urban pluvial flooding impacts can be reduced by improving infrastructure and operational urban flood management strategies. This study investigated the relation between heavy rainfall and urban pluvial flooding in Rotterdam with the aim to identify parameters and thresholds that can be used as predictors of urban pluvial 5flooding. The focus of the investigation was on an area of 16 km 2 . Datasets for this research included historical crowdsourced flooding reports, overflow pumping volumes, open spatial data and rainfall data at different temporal and spatial resolutions. Threshold values, (which can be used as part of early warning systems,) were derived from historical flooding data and rainfall depths over sub daily durations. Threshold values of rainfall depth were found to be 6 mm (±3 mm) in 15 min and 11 mm (±6 mm) in 60 min. Surprisingly, the derived thresholds are only 10 approximately half of the theoretical drainage system design capacity. Furthermore, a threshold value of 70% (± 4%) imperviousness was found above which flooding incidents significantly increase. Results also suggested a strong dependence on spatial aggregation scale, as it highly influences correlation coefficients and parameter density values. Elevation differences did not appear to contribute to urban pluvial flooding, based on a flow path analysis for the study area. Finally, we showed that antecedent rainfall does not explain additional variance in 15 reports, meaning it is not an influential urban pluvial flooding predictor, at least not on a daily temporal resolution.

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Section: Approaches To Quantifying Urban Pluvial Flooding Occurrence mentioning

confidence: 99%

Towards identification of critical rainfall thresholds for urban pluvial flooding prediction based on crowdsourced flood observations

Bouwens

Veldhuis

Schleiss

et al. 2018

Preprint

View full text Add to dashboard Cite

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“…Recent studies have used geographic information systems (GISs) to delineate analogous high-risk areas for pluvial flooding, taking advantage of newly available, highly resolved geospatial datasets. Beyond the use of simple GIS-based approaches for pluvial flood hazard delineation, several studies have investigated the use of numerical modeling that better represents the dynamic effects of spatially varying rainfall, runoff generation processes and features of the built environment (Löwe et al, 2017;Obermayer et al, 2010;Zellner, Massey, Minor, & Gonzalez-Meler, 2016). Recent reviews of available urban drainage models are provided by Bach, Rauch, Mikkelsen, Mccarthy, and Deletic (2014) and Salvadore, Bronders, and Batelaan (2015).…”

Section: Emerging Approaches For Pluvial Flood Risk Assessmentmentioning

confidence: 99%

Pluvial flood risk and opportunities for resilience

et al. 2018

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The risk presented by pluvial flooding has emerged as a critical issue in urban water management. Pluvial flooding occurs when precipitation intensity exceeds the capacity of natural and engineered drainage systems, and it is expected to increase in frequency, severity and impact through the 21st century due to the combined effects of climate change and urbanization. Although there have been recent advances in approaches to assess the risk presented pluvial flooding and to enhance the resilience of cities to its impacts, they have not been broadly implemented and there are many opportunities for additional research. We provide case studies of pluvial flooding in six cities in the continental United States, which serve as examples of the current vulnerability of cities that have not developed comprehensive pluvial flood management plans and the challenges in conducting pluvial flood research in light of existing data gaps. We also identify key research challenges that should be prioritized by the interdisciplinary water research community to better support urban resilience practice. This article is categorized under: Engineering Water > Sustainable Engineering of Water Science of Water > Water Quality Engineering Water > Planning Water

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“…The urban development module, in particular, projects the changes of the urban environment down to the household level [102]. Various biophysical modules are used to simulate the impact of urban development on infrastructure, and include well-known hydraulic models such as EPANET [103] and EPA SWMM [104], as well as a link with MIKE URBAN for flood risk assessment [105].…”

Section: Dance4watermentioning

confidence: 99%

Use and Utility: Exploring the Diversity and Design of Water Models at the Science-Policy Interface

Chong

Bach

Moilleron

et al. 2017

Water

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Effort to narrow the gap between the production and use of scientific knowledge for environmental decision-making is gaining traction, yet in practice, supply and demand remains largely unbalanced. A qualitative study based on empirical analysis offers a novel approach to exploring key factors, focussing on seven water models in the context of two organisations at the science-policy interface: the PIREN-Seine in France and the CRC for Water Sensitive Cities in Australia. Tentative linkages drawn from these examples identify: (1) objective and expertise; (2) knowledge and tools; and (3) support structures as main drivers influencing the production of scientific knowledge which, in turn, affect the use and utility of modelling tools. Further insight is gained by highlighting the wide spectrum of uses and utilities existing in practice, suggesting that such 'boundary organisations' facilitate interactions and exchanges that give added value to scientific knowledge. Coordinated strategies that integrate inter-, extra-, and intra-boundary activities, framed through collaborative scenario building and the use of interactive modelling platforms, may offer ways to enhance the use and utility of scientific knowledge (and its tools) to better support water resources management, policy and planning decisions, thus promoting a more cohesive relationship between science and policy.

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Assessment of urban pluvial flood risk and efficiency of adaptation options through simulations – A new generation of urban planning tools

Cited by 158 publications

References 60 publications

Towards identification of critical rainfall thresholds for urban pluvial flooding prediction based on crowdsourced flood observations

Towards identification of critical rainfall thresholds for urban pluvial flooding prediction based on crowdsourced flood observations

Pluvial flood risk and opportunities for resilience

Use and Utility: Exploring the Diversity and Design of Water Models at the Science-Policy Interface

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