flood impact Articles

  • Impact of institutions on flood policy learning

    Improving flood management is of fundamental importance to reduce human vulnerability to natural hazards, yet, policy reforms have been slow in many countries. To overcome inertia in our societies, the adaptive governance literature prescribes learning and collaboration. In this article, we examine how national institutions have influenced initiatives to improve flood policies in Scotland between ...


    By IWA Publishing

  • Modelling the impact of urbanization on flood frequency relationships in the UK

    This paper investigates the effect of urbanization on the three key statistics used to establish flood frequency curves when combining the index flood method with the method of L-moments for estimating distribution parameters, i.e. the median annual maximum peak flow (the index flood), and the high-order L-moment ratios L-CV and L-SKEW. An existing procedure employing catchment descriptors was ...


    By IWA Publishing

  • The impact of network simplification on property flood risk predictions

    A recent project, set up to compare the merits of simplified and desimplified models in InfoWorks CS, has proved that the solution’s fast and robust simulation capabilities are now so advanced that highly-complex models can provide far greater accuracy at competitive speeds than smaller, simpler models. As the water industry moves towards a risk-based approach to flooding, the existing ...


    By Innovyze

  • Contribution to a flood situation management: a supervisory control scheme to reduce disaster impact

    Inundations due to river overflows are becoming more frequent; management of flood is thus an important task belonging to the set of preventive measures allowing the protection of people and goods downstream. The flood situation management method proposed in this paper was designed to reduce the flood impact at its early arising stage. The river is supposed to be equipped with reservoirs in ...


    By IWA Publishing

  • Impact of climate change on flood and drought events in Huaihe River Basin, China

    The impact of climate change on floods and droughts in Huaihe River Basin is studied using a coupled land-surface hydrology model and continuous wavelet transform technique. Observed temperature in the basin has increased by approximately 0.228 °C per decade since 1951. Observed precipitation and simulated and observed streamflows are used to grade flood and drought events. Two composite grading ...


    By IWA Publishing

  • Impacts of Barrage Flushing and Flooding in Operations on Upstream Total Suspended Solids

    This study looks into the impacts of Sarawak Barrage (located in Kuching City, State of Sarawak, Malaysia) flushing and flooding-in operations on upstream total suspended solids (TSS). Water samples were collected from three upstream stations on 17th, 18th and 19th of August 2000. During flushing, it was observed that TSS levels increased over a distance of 11 km upstream. Maximum TSS recorded ...

  • Modelling climate change impacts on the flood pulse in the Lower Mekong floodplains

    The flood pulse is a key element characterizing the hydrology of the Mekong River and driving the high ecosystem productivity in the Lower Mekong floodplains, both in the Cambodian lowlands and the Mekong Delta in Vietnam. This paper assesses the impacts of climate change, both in terms of changed basin water balance and sea level rise, on the Lower Mekong flood pulse. The impacts were simulated ...


    By IWA Publishing

  • Impact of rainfall data resolution in time and space on the urban flooding evaluation

    Climate change and modification of the urban environment increase the frequency and the negative effects of flooding, increasing the interest of researchers and practitioners in this topic. Usually, flood frequency analysis in urban areas is indirectly carried out by adopting advanced hydraulic models to simulate long historical rainfall series or design storms. However, their results are ...


    By IWA Publishing

  • 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 ...


    By IWA Publishing

  • Flood Protection: Lamberhurst, Kent

    Client: Tunbridge Wells Borough Council Project Detail: In November 2010 UK Flood Barriers won the competitive tender to undertake a Defra funded Property Level Flood Protection Scheme in Lamberhurst, Kent, in conjunction with Tunbridge Wells Borough Council and the Environment Agency. Lamberhurst’s most recent serious flooding event was in October 2000, ...


    By UK Flood Barriers Limited

  • Developing optimum solutions to flooding

    Developing optimum solutions to flooding With a very long period of wet weather in the summer overlaid by intense rainfall, 2007 was the wettest summer in the UK on record. This unusual weather pattern resulted in very high localised runoff, with three events in England exceeding the 1 in 100 year return period over that time – some of the worst flooding that has ever occurred in ...


    By Innovyze

  • Living with the floods, not against them

    “Yes, we are illiterate sir, but we are engineers as far as our experience with water and rivers is concerned”, says Phushi Mahato, a villager in the Gosi Kandak floodplains in North-Bihar in India. As an outcome of water resource management that failed to understand the role of fluvial regimes in delta, Phushi and his fellow village members have now become vulnerable to floods ...


    By Wetlands International

  • The Thames flood series: a lack of trend in flood magnitude and a decline in maximum levels

    The flow series for the River Thames near its tidal limit is one of the most studied in the world. Its length and completeness, and the richness of the historical information which augments the formal flow record, ensures that the series is of immense value. However, the variability in flood magnitude and frequency that it captures needs to be interpreted with caution. The homogeneity of the time ...


    By IWA Publishing

  • Green–blue water in the city: quantification of impact of source control versus end-of-pipe solutions on sewer and river floods

    Urbanization and climate change trends put strong pressures on urban water systems. Temporal variations in rainfall, runoff and water availability increase, and need to be compensated for by innovative adaptation strategies. One of these is stormwater retention and infiltration in open and/or green spaces in the city (blue–green water integration). This study evaluated the efficiency of ...


    By IWA Publishing

  • Development and Testing of Methods to Assess The Impact of Climate Change on Flood And Drought Hazards at The European Scale

    During the last 100 years global climate has warmed by an average of 0.6ºC, owing in part to human induced greenhouse gas emissions. Based on different scenarios of future greenhouse gas emissions, projections of climate models indicate another 1.4 to 5.8 ºC of warming over the next century (IPCC, 2001a). The projected change in climate will significantly impact the hydrological cycle. A warmer ...


  • The evolution of organic character in a drought- and flood-impacted water source and the relationship with drinking water treatment

    A pilot-scale research investigation examining treatment technologies including coagulation, ion-exchange, activated carbon and membrane filtration and their impact on water quality coincided with a period of extensive variability in source water character. Distinct water quality periods as a result of extreme climatic conditions from drought to flood were observed and the natural organic ...


    By IWA Publishing

  • Flood forecasting that considers the impact of hydraulic projects by an improved TOPMODEL model in the Wudaogou basin, Northeast China

    Many hydraulic projects such as reservoirs, ponds and paddy fields as well as soil and water conservation engineering projects have been constructed to improve utilization of water resources upstream of the Wudaogou station basin in Northeast China in recent years. As a result, the local hydrological characteristics of the basin and the flood runoff and process have been changed. These changes ...


    By IWA Publishing

  • Study of impacts of floods on the water quality in an arid zone: the case of the Tarim River in Northwest China

    This paper presents the results of the study undertaken at the Tarim River Basin in Northwest China to analyze impacts of flooding on water quality. It was shown that irregular rainfall was the cause of flash floods that affected many ecosystems and eroded soils. Simulation results and the existence of relationships between flood volume and flood peak allowed potential model application that ...


    By IWA Publishing

  • Flood impact reduction and streambank repair along Spy Run Creek - Spy Run Creek, Indiana - Case Study

    Project Highlights SPY Run Creek Streambank Repair Owner: City of Fort Wayne, Ind. Engineer: Christopher B. Burke Engineering LLC / Indianapolis office Geosynthetics Distributor: D2 Land & Water Resource Inc. Cellular Confinement System: Geoweb–Presto Geosystems Background ...


    By Presto Geosystems

  • Flood resilience and environmental gain in Boscastle

    This paper describes and illustrates the influence that landscape architects can have on shaping engineering solutions for flood risk management, from the initial landscape and visual impact assessments, to detailed analysis and design. The paper shares the experience of developing a flood risk management scheme, for the lower quay, within the village of Boscastle. Boscastle is a ...


    By IWA Publishing

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