Changing estuaries, changing views

Smits, A.J.M.; Nienhuis, P.H.; Saeijs, H.L.F.

doi:10.1007/1-4020-5367-3_23

Cited by 11 publications

(7 citation statements)

References 9 publications

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“…FRMI is not a physical variable representing topographical features; instead, it is a dominant solution for preventing flood damage [29][30][31]. FRMI in this study includes pumping stations and rainwater retention tanks.…”

Section: Variable Selectionmentioning

confidence: 99%

Effect of Urban Green Spaces and Flooded Area Type on Flooding Probability

2016

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Abstract:Countermeasures to urban flooding should consider long-term perspectives, because climate change impacts are unpredictable and complex. Urban green spaces have emerged as a potential option to reduce urban flood risks, and their effectiveness has been highlighted in notable urban water management studies. In this study, flooded areas in Seoul, Korea, were divided into four flooded area types by cluster analysis based on topographic and physical characteristics and verified using discriminant analysis. After division by flooded area type, logistic regression analysis was performed to determine how the flooding probability changes with variations in green space area. Type 1 included regions where flooding occurred in a drainage basin that had a flood risk management infrastructure (FRMI). In Type 2, the slope was steep; the TWI (Topographic Wetness Index) was relatively low; and soil drainage was favorable. Type 3 represented the gentlest sloping areas, and these were associated with the highest TWI values. In addition, these areas had the worst soil drainage. Type 4 had moderate slopes, imperfect soil drainage and lower than average TWI values. We found that green spaces exerted a considerable influence on urban flooding probabilities in Seoul, and flooding probabilities could be reduced by over 50% depending on the green space area and the locations where green spaces were introduced. Increasing the area of green spaces was the most effective method of decreasing flooding probability in Type 3 areas. In Type 2 areas, the maximum hourly precipitation affected the flooding probability significantly, and the flooding probability in these areas was high despite the extensive green space area. These findings can contribute towards establishing guidelines for urban spatial planning to respond to urban flooding.

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Section: Variable Selectionmentioning

confidence: 99%

Effect of Urban Green Spaces and Flooded Area Type on Flooding Probability

2016

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“…In semi-urban catchments, urban drainage systems may be combined with dams, levees, and other types of storage and detention facilities to cope with floods. However, during recent decades alternative ways to manage floods have evolved since traditional methods often harm the riverine ecosystems in urban as well as rural areas and increase the long-term flood risk [7,8]. Alternative methods relate to resilience theory and address the city's capacity to mitigate flooding in particularly sensitive urban areas, tolerate controlled flooding on assigned areas, and to re-organize in case of damage.…”

Section: Introductionmentioning

confidence: 99%

Re-Thinking Urban Flood Management—Time for a Regime Shift

Sörensen

Persson

Sternudd

et al. 2016

Water

105

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Urban flooding is of growing concern due to increasing densification of urban areas, changes in land use, and climate change. The traditional engineering approach to flooding is designing single-purpose drainage systems, dams, and levees. These methods, however, are known to increase the long-term flood risk and harm the riverine ecosystems in urban as well as rural areas. In the present paper, we depart from resilience theory and suggest a concept to improve urban flood resilience. We identify areas where contemporary challenges call for improved collaborative urban flood management. The concept emphasizes resiliency and achieved synergy between increased capacity to handle stormwater runoff and improved experiential and functional quality of the urban environments. We identify research needs as well as experiments for improved sustainable and resilient stormwater management namely, flexibility of stormwater systems, energy use reduction, efficient land use, priority of transport and socioeconomic nexus, climate change impact, securing critical infrastructure, and resolving questions regarding responsibilities.

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“…4.3, such arrangements have yet to be developed in practice. Partly induced by climate change scenarios, the technical approach, based on dams and barriers, has also been shifting toward more spatial solutions such as the space for water program, based on the idea that less human control and more space for water dynamics in riverine and coastal areas can provide more safety as well as a growth in ecological and landscape quality (Smits et al 2006;Van Stokkom et al 2005;Wiering and Arts 2006).…”

Section: The Netherlands: Public Risk Coveragementioning

confidence: 99%

Adaptation to climate change in the insurance sector: examples from the UK, Germany and the Netherlands

2013

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Adaptation to climate change, particularly flood risks, may come to pose large challenges in the future and will require cooperation among a range of stakeholders. However, there presently exists little research especially on the integration of the private sector in adaptation. In particular, recently developed state programs for adaptation have so far been focused on the public sector. Insurance providers may have much to contribute as they offer other parts of society services to appropriately identify, assess and reduce the financial impacts of climate change-induced risks. This study aims to explore how the institutional distribution of responsibility for flood risk is being renegotiated within the UK, Germany and Netherlands. Examining how the insurance industry and the public sector can coordinate their actions to promote climate change adaptation, the study discusses how layered natural hazard insurance systems may result from attempts to deal with increasing risks due to increasing incidences of extreme events and climate change. It illustrates that concerns over the risks from extreme natural events have prompted re-assessments of the current systems, with insurance requiring long-term legislative frameworks that defines the objectives and responsibilities of insurers and the different political authorities.

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Changing estuaries, changing views

Cited by 11 publications

References 9 publications

Effect of Urban Green Spaces and Flooded Area Type on Flooding Probability

Effect of Urban Green Spaces and Flooded Area Type on Flooding Probability

Re-Thinking Urban Flood Management—Time for a Regime Shift

Adaptation to climate change in the insurance sector: examples from the UK, Germany and the Netherlands

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