Effect of Catchment-Scale Green Roof Deployment on Stormwater Generation and Reuse in a Tropical City

Schmitter, Petra; Goedbloed, Albert; Galelli, Stefano; Babovic, Vladan

doi:10.1061/(asce)wr.1943-5452.0000643

Cited by 24 publications

(8 citation statements)

References 38 publications

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“…This flexibility and adaptability feeds into a robust, antifragile, and integrated flood management strategy which can perform well under changing and uncertain future conditions. However, despite the potential benefits of multifunctional blue–green–gray infrastructure, in practice, optimization of more than one benefit is particularly challenging, and trade‐offs will need to be made between, for example, objectives to minimize risks from urban heat or urban flooding (Caparros‐Midwood et al, 2019), or stormwater management and water reuse/harvesting (Schmitter et al, 2016).…”

Section: Challenges and Recommendationsmentioning

confidence: 99%

Green infrastructure: The future of urban flood risk management?

et al. 2021

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Urban flooding is a key global challenge which is expected to become exacerbated under global change due to more intense rainfall and flashier runoff regimes over increasingly urban landscapes. Consequently, many cities are rethinking their approach to flood risk management by using green infrastructure (GI) solutions to reverse the legacy of hard engineering flood management approaches. The aim of GI is to attenuate, restore, and recreate a more natural flood response, bringing hydrological responses closer to pre‐urbanized conditions. However, GI effectiveness is often difficult to determine, and depends on both the magnitude of storm events and the spatial scale of GI infrastructure. Monitoring of the successes and failures of GI schemes is not routinely conducted. Thus, it can be difficult to determine whether GI provides a sustainable solution to manage urban flooding. This article provides an international perspective on the current use of GI for urban flood mitigation and the solutions it offers in light of current and future challenges. An increasing body of literature further suggests that GI can be optimized alongside gray infrastructure to provide a holistic solution that delivers multiple co‐benefits to the environment and society, while increasing flood resilience. GI will have to work synergistically with existing and upgraded gray infrastructure if urban flood risk is to be managed in a futureproof manner. Here, we discuss a series of priorities and challenges that must be overcome to enable integration of GI into existing stormwater management frameworks that effectively manage flood risk. This article is categorized under: Engineering Water > Sustainable Engineering of Water Engineering Water > Planning Water Science of Water > Water Extremes

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Section: Challenges and Recommendationsmentioning

confidence: 99%

Green infrastructure: The future of urban flood risk management?

et al. 2021

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“…However, the spatial distribution of GRs also affects the reduction in peak discharge; for instance, greening the roofs in the upstream region is observed to be more beneficial in delaying the catchment runoff rather than downstream where cascading effects can occur [86]. Schmitter et al [87] observed that the annual volume reductions were low but substantial in terms of flood protection when all traditional roofs were converted to GRs.…”

Section: Flood Mitigationmentioning

confidence: 99%

Urban Integration of Green Roofs: Current Challenges and Perspectives

Joshi

Teller

2021

Sustainability

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Green roofs (GRs) are a sustainable alternative to conventional roofs that provide multiple ecosystem services. Integrating GRs into urban areas is highly relevant considering the rapidly increasing built-up in cities. Therefore, this paper systematically and comprehensively reviews the recent literature from 2011 to 2019 on GRs to identify the challenges and perspectives related to the urban integration of GRs. The review suggests that the effectiveness of GRs in delivering ecosystem services is largely dependent on context-specific parameters such as weather conditions and existing construction or design-related parameters. Integrating GRs into urban areas can be challenging given the diversity of actors, functions, and conditions characterizing these areas. Although significant research has already been conducted on GRs, research covering more geographical locations and contexts is needed. The review points out the need to include future urbanization scenarios, such as tall buildings while analyzing the impact of GRs on ecological networks. Additionally, the review emphasizes the inclusion of urban morphological parameters alongside an analysis of the impact of GRs on microclimate regulation and air quality. In terms of social acceptance, this review points out the need to consider the temporal cycles of vegetation for noting users’ perspectives. Additionally, further research is required on the social impact of GRs, considering their influence on property prices. Lastly, the review stresses the need for more city-scale studies on the impact of GRs on ecosystem services.

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“…To date, the majority of watershedscale LID assessments have been conducted in temperate climates. Additional work is needed to better understand optimal implementation of LID for stormwater management under hydrologic extremes presented in both tropical (Chui et al, 2016;Lim et al, 2016;Schmitter et al, 2016) and arid climes. In addition, standardization of metrics used to characterize the drivers of stream degradation and other watershed-scale impacts of stormwater runoff and management strategies is needed .…”

Section: Implications To Watershed-scale Planning Andmentioning

confidence: 99%

“…However, there remains an impressive breadth of subject matters spanning full-scale greenroof hydrologic models to novel substrate amendments. Note that studies pertaining to the modeling of catchment scale implementation of greenroofs(Masseroni and Cislaghi., 2016;Schmitter et al, 2016) can be found in "Watershed-scale Assessment".Field, Laboratory and Modeling Hydrologic Performance Studies. Field and laboratory studies dominated the 2016 publications with a focus on the impact of various greenroof and climate parameters.…”

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confidence: 99%

Urban Stormwater Characterization, Control, and Treatment

Moore¹,

Rodak²,

Vogel³

2017

Water Environment Research

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A summary of 246 studies published in 2016 on topics related to the characterization and management of urban stormwater runoff is presented in the following review. The review is structured along three major topical areas: (1) general characterization of stormwater quantity and quality; (2) engineered systems for stormwater control and treatment, including erosion and sediment control practices, constructed stormwater ponds and wetlands, bioretention, permeable pavement, greenroofs, and rainwater harvesting and (3) watershedscale application of stormwater treatment and control practices. Common research themes and needs highlighted throughout this review include efforts to better understand stormwater transport and treatment mechanisms and their representation in models, advancements to optimize the design of stormwater control measures to meet specific hydrologic and/or water quality targets, and increasing understanding of the biophysical and social factors that influence watershed-scale implementation of low impact development and other stormwater control measures.

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Effect of Catchment-Scale Green Roof Deployment on Stormwater Generation and Reuse in a Tropical City

Cited by 24 publications

References 38 publications

Green infrastructure: The future of urban flood risk management?

Green infrastructure: The future of urban flood risk management?

Urban Integration of Green Roofs: Current Challenges and Perspectives

Urban Stormwater Characterization, Control, and Treatment

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