coastal defence Articles

  • Mangroves for coastal defence

    The role of mangroves in protecting our coasts against natural hazards such as storms, tsunamis and coastal erosion has been widely promoted. But the supposed coastal protection services of mangroves have also been subject to debate. The Nature Conservancy and Wetlands International together with the University of Cambridge set out to map the current state of knowledge about the role of mangroves ...


    By Wetlands International

  • Flood and Coastal Risk Management - Case Study England

    The Environment Agency is the principal flood risk management operating authority. It has the power (but not the legal obligation) to manage flood risk from designated main rivers and the sea. These functions in relation to other rivers (defined as ...


    By IWA Publishing

  • What are the true costs of rising sea levels?

    A simple relationship between sea level rise and the massive potential costs of future coastal flooding has been established by scientists in Germany. As sea levels rise, the damage to human economies rises even faster. And as sea levels rose by an estimated 14cms in the last century, and could rise by up to 130cms ...


    By Climate News Network

  • The response of mangrove soil surface elevation to sea level rise

    Coastal ecosystems such as mangroves can reduce risk to people and infrastructure from wave damage and flooding. The continued provision of these coastal defence services by mangroves is dependent on their capacity to adapt to projected rates of sea level rise. This report explores the capacity of mangrove soil surfaces to increase in elevation in response to local rises in sea level. Historical ...


    By Wetlands International

  • Green Solutions for Resilient Delta Cities

    The climate is changing at the same time as we see enlarging and more densely populated urban delta areas. We need to find new and innovative ways to keep people in urban areas safe from chronic and acute stresses such as flooding and poor water quality whilst maintaining a desirable environment. Green approaches may be the solution. Green approaches and solutions are increasingly proving ...


    By Wetlands International

  • Morphological, bathymetric and sedimentological surveys used to assess the coastline defensive measures

    This paper outlines the results of a study recently carried out on the western coast of the Sestri Levante peninsula (Eastern Liguria - Italy), aiming to assess the effects of newly accomplished defensive measures against coastal erosion: the accretion of the beach with natural sand and its protection with artificial structures orthogonal and ...

  • Over a million log on to SEPA’s flood map and InfoWorks RS

    On average, over 11,000 people a day look at the maps, peaking at 40,000 to 60,000 during wet weather – a staggering 222,552 people accessed the maps on one particular day just after the map was launched. The map provides web-based flood outlines indicating the flood hazard that exists at any particular location (for instance, whether an area may be inundated by a fluvial flood event of one in ...


    By Innovyze

  • Steering the Policy and Practice in Disaster Risk Reduction

    This September Wetlands International officially joined PEDRR, a global alliance of UN agencies, NGOs and specialist institutes which plays a vital role in steering the policy and practice in disaster risk reduction ...


    By Wetlands International

  • Living with floods in the Mahanadi Delta, India

    In October 2013, one of the fiercest cyclones to hit the Bay of Bengal for many years made landfall on the low-lying delta coast of the Indian state of Odisha. With winds battering the coastline at more than 200 kilometres per hour, the structural damage from cyclone Phailin was intense. Thousands of straw, timber and bamboo homes were destroyed across the delta of the River Mahanadi, one of ...


    By Wetlands International

  • Newtons Cove Coast Protection Scheme

    Using tried and tested techniques, B&V Water River & Coastal Management experts replaced an existing seawall and won an environmental award in the process. The chilled rough waters of the English Channel have pounded and eroded the coast of England for millennia causing present day problems for towns and villages clustered close to the sea since ancient times. In the county of Dorset on ...


    By Black & Veatch Corporation

  • 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

  • Dewatering with Geotextile Bags - South Gippsland, Australia (Water Treatment) - Case Study

    A simple, cost effective new method of dewatering sludge is now available in Australia, writes Bill Kelly from CRS Industrial Water Treatment. The use of geotextilcs for containment and dewatering came about as a result of a major flood event in Holland in the 1950s. It prompted Dutch marine engineers to seek new methods and materials to build structures for coastal defences. The ...

  • The case for automatic weirs

    With hosepipe bans returning to parts of the country this summer, it’s easy to forget the disastrous floods of recent years – unless, of course, you were personally affected. This year’s harsh winter and modest levels of spring and summer rainfall belie a growing trend of more extreme weather events hitting the UK and a pattern of warmer winters and wetter summers. As we saw ...


    By Kijlstra LTD.

  • Asia Analysis: Battling climate impacts in low-lying Maldives

    Going carbon neutral and protecting marine environment are key to fighting climate change in the tiny island nation, says Nalaka Gunawardene. ‘Raise your voice, not the sea level’ is the theme for this year’s World Environment Day, which falls on 5 June. The theme resonates with the United Nations designating 2014 as the International Year of Small Island Developing ...


    By SciDev.Net

  • Acting on disaster warnings: Don`t miss the human factor

    We need to understand why some people act on early warnings while others ignore them, says disaster preparedness specialist Sudhir Kumar. The Great East Japan Earthquake and subsequent tsunami of 11 March 2011 challenged global ideas about responding to disasters. It showed that structural defences alone, such as breakwaters, coastal dykes and tidal barriers, cannot provide protection ...


    By SciDev.Net

  • Opinion: Making Space for Nature

    MAKING SPACE FOR NATURE In September 2009, the then Secretary of State in the Department for Environment, Food and Rural Affairs, Hilary Benn, asked me to chair a review of England's wildlife and ecological network. Across England large areas of land are protected under environmental and landscape designations. Both within these designations and outside them the Government, the voluntary ...


  • Legislation: Future water - The govenment`s water strategy for England

    Visions, Strategies & Realisation Compared to other environmental areas such as land use, waste management, air quality and biodiversity, comprehensive strategic planning of water management in England has been dilatory. This is not to say that strategic planning has been entirely absent in water management, but that it has been undertaken in a piecemeal way, with numerous sectoral ...


  • Pacific lessons on research engagement and impact

    The University of the South Pacific's massive catchment may mean less research cash, but its science helps the region, reports Anne Moorhead. The University of the South Pacific, known locally as USP, is one of just two regional universities in the world: the other is the University of theWest Indies. Serving the academic and research needs of 12 small island countries spread over ...


    By SciDev.Net

  • If the well runs dry — climate change adaptation and water document actions

    'Our water is shut off once or twice a month, sometimes more,' says Baris Tekin from his apartment in Besiktas, an historic district of Istanbul, where he lives with his wife and daughter. 'We have about 50 litres of bottled water in the apartment for washing and cleaning, just in case. If the water is off for a really long time we go to my father's place or to my wife's parents,' says Baris, an ...

  • Disaster and climate risks aren’t separate

    Governments must integrate work across frameworks if global policy won’t, say Zenaida Delica-Willison and JC Gaillard. Disasters are a serious challenge everywhere. All communities need resilient and sustainable development, and that cannot be achieved without thinking through Disaster Risk Reduction (DRR) strategies. But many years of discussion and work on DRR have been ...


    By SciDev.Net

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