floods in a megacity

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Floods In A Megacity

Author : Ashraf Dewan
ISBN : 9789400758759
Genre : Nature
File Size : 82. 95 MB
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Flooding is one of the most devastating natural hazards in the world. Available records suggest that both flood frequency and severity are on the rise and this is likely to worsen in the context of climate change. As population, infrastructure and poverty grow rapidly in developing countries, particularly in urban agglomerations of 10 million people or more, floods could cause widespread devastation, economic damage and loss of life. Assessment of vulnerability and risk from naturally occurring phenomena is therefore imperative in order to achieve urban sustainability. This book uses geospatial techniques to evaluate hazards, risk and vulnerability at a metropolitan scale in a data-scarce country. An empirical study was performed using remote sensing, GIS and census data. This research offers a new approach to mapping population, infrastructures and communities at risk which can greatly contribute to the deeper understanding of flood disasters in a rapidly expanding megacity. Examples shown in this book are from Dhaka Megacity, however, the techniques and methods can easily be implemented in medium to large cities of similar characteristics. The book is essential reading for hazard researchers, geospatial scientists, disaster management professionals, geographers, urban planners, and social scientists. Ashraf M. Dewan is currently a Lecturer in the Department of Spatial Sciences at Curtin University, Western Australia (on leave from his substantive position as Associate Professor in the Geography & Environment Department at the University of Dhaka, Bangladesh).

Dhaka Megacity

Author : Ashraf Dewan
ISBN : 9402400494
Genre : Science
File Size : 40. 67 MB
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The book Dhaka Megacity: Geospatial Perspectives on Urbanisation, Environment and Health presents the use of geospatial techniques to address a number of environmental issues, including land use change, climatic variability, urban sprawl, population density modelling, flooding, environmental health, water quality, energy resources, urban growth modelling, infectious diseases and the quality of life. Although the work is focused on the Megacity of Dhaka in Bangladesh, the techniques and methods that are used to research these issues can be utilized in any other areas where rapid population growth coupled with unplanned urbanization is leading to environmental degradation. The book is useful for people working in the area of Geospatial Science, Urban Geography, Environmental Management and International Development. Since the chapters in the book cover a range of environmental issues, this book describes useful tools for assisting informed decision making, particularly in developing countries.

Floods And Landslides Integrated Risk Assessment

Author : Riccardo Casale
ISBN : 3540649816
Genre : Science
File Size : 47. 76 MB
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This book reviews the state of the art of natural disasters like floods and landslides, highlighting the possibility of safe and correct land planning and management by means of a global approach to territory. In fact, the events deriving from slope dynamics (gravitational phenomena) and fluvial dynamics (floods) are commonly triggered by the same factor (heavy rainfall), occur at the same time and are closely related. For this reason, this book analyses floods and slope stability phenomena as different aspects of the same dynamic system: the drainage basin.

Megacity Yangon

Author : Frauke Kraas
ISBN : 3825800423
Genre : Social Science
File Size : 60. 49 MB
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Megacities are new urban phenomena, results of globalisation and subject to as well as motors of global ecological, socio-economic, and political change. New are the dimensions of growth, concentrations of population, infrastructure, economic power and decisions - and the simultaneous, self-energising acceleration processes of development. But one must be wary of generalised statements since differences of economic performance, social coherence, infrastructure conditions and governance structures should not be ignored: The publication aims at analysing current transformation processes of Yangon/Myanmar, as spearhead of national development, bridge to Southeast Asia and the world.

Climate Health Risks In Megacities

Author : Cesar Marolla
ISBN : 9781498767750
Genre : Science
File Size : 86. 49 MB
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Climate Health Risks in Megacities: Sustainable Management and Strategic Planning courageously confronts the immense challenges of alleviating climate change and takes the initiative to layout an agenda that calls for action in the rapidly changing landscape of our global climate. This guide provides a constructive methodology for developing and implementing risk management and operational continuity management systems to climate change effects on urban populations. It addresses key issues such as physical location, proper sanitation, food security and vector-borne diseases against the backdrop of climate change, and then model its effect on the urban dwellers. The author also reveals the benefits of implementing a unique risk management approach to combat global threats and focuses on building urban resilience in the face of disasters. Prepared with a comprehensive and forward-thinking style, this book draws on indispensable case studies in key megacities like New York, Los Angeles, Beijing, Rio de Janeiro, London, Mumbai, and Lagos, and links researchers, scientists, city’s mayors, environmentalists, policy-makers and world leaders from central areas to review, reflect, and expound on future directions.

Megacities And The Coast

Author : Mark Pelling
ISBN : 9781135074753
Genre : Business & Economics
File Size : 81. 15 MB
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Based on a major international study, this volume provides a synthesis of scientific knowledge on megacity urbanization on the coast, environmental impacts, risks and management choices, including a focus on adaptation, mitigation and disaster risk management. It is the primary output of a major international scientific project sponsored by the International Geosphere Biosphere Programme, the Land-Ocean Interactions at the Coastal Zone programme of IHDP/IGBP, and others. It brings together the work of over 60 contributing authors and an international review board. It presents the international policy and academic community with an unbiased and high quality assessment of the state-of-the art in areas of social-ecological systems interaction. One of its main messages is that while we know a great deal about megacities of more than ten million people and about urban processes, and about coasts and their physical and ecological processes (aquatic, physical and atmospheric), there is relatively little work that focusses primarily at points of intersection between large-scale urbanization and the coast. The book responds to this gap by providing the first global synthesis of megacity and large urban region urbanization on the coast. Its focus is on environmental and development challenges, climate change and disaster. It is interdisciplinary and brings together world recognised scientists (including many IPCC lead authors) on urban climate and atmosphere, disaster risk management, demography and coastal environments.

Cities And Flooding

Author : Abhas K. Jha
ISBN : 9780821394779
Genre : Business & Economics
File Size : 77. 30 MB
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Urban flooding is an increasing challenge today to the expanding cities and towns of developing countries. This Handbook is a state-of-the art, user-friendly operational guide that shows decision makers and specialists how to effectively manage the risk of floods in rapidly urbanizing settings--and within the context of a changing climate.

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