flood risk Articles
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Environment Agency warns about increasing risk of flooding
“Intense bouts of flooding are set to become more frequent, the Environment Agency has warned today (Friday 16 February). The warning follows a pattern of severe flooding over the past 10 years linked to an increase in extreme weather events as the country’s climate changes. Met Office records show that since 1910 there have been 17 record breaking rainfall months or seasons – ...
By Aquobex
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The rationales of resilience in English and Dutch flood risk policies
We compared the governance of flood risk in England and the Netherlands, focusing on the general policies, instruments used and underlying principles. Both physical and political environments are important in explaining how countries evolved towards very different rationales of resilience. Answering questions as ‘who decides’, ‘who should act’ and ‘who is ...
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Process design and management for integrated flood risk management: exploring the multi-layer safety approach for Dordrecht, The Netherlands
New flood risk management policies account for climate and socio-economic change by embracing a more integrated approach. Their implementation processes require: collaboration between a group of stakeholders; combining objectives and funding from various policy domains; consideration of a range of possible options at all spatial scale levels and for various time horizons. Literature provides ...
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Quantification of increased flood risk due to global climate change for urban river management planning
Global climate change is expected to affect future rainfall patterns. These changes should be taken into account when assessing future flooding risks. This study presents a method for quantifying the increase in flood risk caused by global climate change for use in urban flood risk management. Flood risk in this context is defined as the product of flood damage potential and the probability of ...
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Development of a screening method to assess flood risk on Danish national roads and highway systems
A method to assess flood risk on Danish national roads in a large area in the middle and southern part of Jutland, Denmark, was developed for the Danish Road Directorate. Flood risk has gained renewed focus due to the climate changes in recent years and extreme rain events are expected to become more frequent in the future. The assessment was primarily based on a digital terrain model (DTM) ...
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Warnings of increased UK flooding as a result of climate change
Intense bouts of flooding in the UK have increased substantially this century, with the frequency set to rise even further as a result of climate change. That is the latest warning from the Environment Agency, which said severe flooding over the last decade was linked to extreme weather events and rising sea levels. The agency highlighted Met Office data showing that there have been 17 ...
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Appraising sustainable flood risk management in the Pearl River Delta's coastal megacities: a case study of Hong Kong, China
The Pearl River Delta (PRD) region has experienced rapid economic and population growth in the last three decades. The delta includes coastal megacities, such as Hong Kong. These low-lying urbanised coastal regions in the PRD are vulnerable to flood risks from unpredictable climatic conditions. These can result in increasing storm surges, rising sea level and intensified rainstorms causing ...
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Methodology for risk assessment of flash flood events due to climate and land-use changes: application to the Llobregat basin
Global change, including climate, land-use and socio-economic changes, is expected to increase the stress on the entire water cycle. In the Mediterranean region, extreme events are likely to increase due to climate change. This work, framed in the EC Seventh Framework Programme project IMPRINTS, presents a methodology to obtain future flood risk maps using climate and land-use scenarios, ...
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An influence diagram for urban flood risk assessment through pluvial flood hazards under non-stationary conditions
Urban flooding introduces significant risk to society. Non-stationarity leads to increased uncertainty and this is challenging to include in actual decision-making. The primary objective of this study was to develop a risk assessment and decision support framework for pluvial urban flood risk under non-stationary conditions using an influence diagram (ID) which is a Bayesian network (BN) ...
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‘A dive into floods’: exploring the Dutch implementation of the floods directive
In recent years the number and frequency of high-impact floods have increased and climate change effects are expected to increase flood risks even more. The European Union (EU) has recently established the Floods Directive as a framework for the assessment and management of these risks. The aim of this article is to explore factors that have hampered or stimulated the implementation process of ...
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The role of water policy entrepreneurs in adaptation to change in the water sector
Addressing pressing issues such as water scarcity, pollution or flood risks will often require major shifts in existing water management policy and policy practices. Paradigm shifts from hydraulic to ecosystem-based policies can be substantial and may also force change toward more participatory governance modes. Analysis of transitions in 15 countries and at European and global levels shows that ...
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The Deltaplan revisited: changing perspectives in the Netherlands' flood risk reduction philosophy
This paper focuses on the recently changed perspectives in the Netherlands' risk reduction philosophy, aimed at protecting a densely populated delta at a lasting high safety level throughout this century while addressing the impacts of climate change and socio-economic developments. The changed perspectives reflect a shift from policy development and implementation following a disaster ...
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Alleviating the flood risk of critical water supply sites: asset and system resilience
Flooding can have severe impacts on the water supply services and adaptation responses for the provision of high-quality water supplies are necessary to cope with the risks exacerbated by climate change. This paper explores the planning process for adaptation strategies, emphasizing current research and modelling constraints and comparing resilience strategies. The flood hazard, vulnerability and ...
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Flood Resilience Measures
Flood risk management is a top priority, exacerbated by the perception that flood risk has increased during the last two decades in many regions. There are two hypotheses for such changing patterns: Changes in climate, e.g. the sequencing of extreme wet and dry periods, leading to a greater magnitude and/or frequency of hydrological extremes (Huntington 2006); and The effects ...
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Adaptation tipping points and opportunities for urban flood risk management
The effects of climate change are expected to increase the frequency and magnitude of floods, droughts and heat waves. An emerging method termed adaptation tipping point – opportunity (ATP-O) assesses a system's climate-incurred tipping points and uses opportunities arising from urban developments to introduce adaptation strategies while reducing investment costs. The objective of this ...
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Return periods of the August 2010 heavy precipitation in northern Bohemia (Czech Republic) in the present climate and under climate change
The study deals with estimates of return periods associated with the August 2010 heavy precipitation in northern Bohemia (Czech Republic), which resulted in flooding with enormous material damage and loss of lives, in the present climate and under climate change scenarios. We focus on the record-breaking 1-day and 2-day amounts at lower-elevation stations, exceeding 150 and 250 mm, ...
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Are Dutch water safety institutions prepared for climate change?
For the water sector, adapting to the effects of climate change is a highly complex issue. Due to its geographical position, The Netherlands is vulnerable to sea level rise, increasing river discharges and increasing salt intrusion. This paper deals with the question of to what extent the historically developed Dutch water safety institutions have the capacity to cope with the ‘new’ challenges of ...
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Climate change impacts on coastal urban settlements in Nigeria
This study investigates the possible impact of climate change on the coastal cities of Lagos and Port Harcourt using the Model for the Assessment of Greenhouse Gas Induced Climate Change (MAGICC-SCENGEN) and geographical information system (GIS) interpolation techniques. The results confirm that sea level rise may occur with a consequence of submerging all coastal cities of the Niger delta area ...
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The role of extreme events in reaching adaptation tipping points: a case study of flood risk management in Dhaka, Bangladesh
Adaptation tipping points (ATPs) refer to the situation where a policy or management strategy is no longer sufficient, and adjustments or alternative policies/strategies have to be considered. In developed countries, the main focus of research has been on characterising the occurrence of ATPs in the face of slow variables like climate change. In developing countries, the system ...
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Real-time urban flood forecasting and modelling – a state of the art
All urban drainage networks are designed to manage a maximum rainfall. This situation implies an accepted flood risk for any greater rainfall event. This risk is often underestimated as factors such as city growth and climate change are ignored. But even major structural changes cannot guarantee that urban drainage networks would cope with all future rain events. Thus, being able to forecast ...
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