floods in a megacity geospatial techniques in assessing hazards risk and vulnerability springer geography

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Floods In A Megacity

Author : Ashraf Dewan
ISBN : 9789400758759
Genre : Nature
File Size : 29. 32 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 : 9789400767355
Genre : Science
File Size : 36. 5 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.

Cultures And Disasters

Author : Fred Krüger
ISBN : 9781317754640
Genre : Science
File Size : 50. 62 MB
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Why did the people of the Zambesi Delta affected by severe flooding return early to their homes or even choose to not evacuate? How is the forced resettlement of small-scale farmers living along the foothills of an active volcano on the Philippines impacting on their day-to-day livelihood routines? Making sense of such questions and observations is only possible by understanding how the decision-making of societies at risk is embedded in culture, and how intervention measures acknowledge, or neglect, cultural settings. The social construction of risk is being given increasing priority in understand how people experience and prioritize hazards in their own lives and how vulnerability can be reduced, and resilience increased, at a local level. Culture and Disasters adopts an interdisciplinary approach to explore this cultural dimension of disaster, with contributions from leading international experts within the field. Section I provides discussion of theoretical considerations and practical research to better understand the important of culture in hazards and disasters. Culture can be interpreted widely with many different perspectives; this enables us to critically consider the cultural boundedness of research itself, as well as the complexities of incorporating various interpretations into DRR. If culture is omitted, related issues of adaptation, coping, intervention, knowledge and power relations cannot be fully grasped. Section II explores what aspects of culture shape resilience? How have people operationalized culture in every day life to establish DRR practice? What constitutes a resilient culture and what role does culture play in a society’s decision making? It is natural for people to seek refuge in tried and trust methods of disaster mitigation, however, culture and belief systems are constantly evolving. How these coping strategies can be introduced into DRR therefore poses a challenging question. Finally, Section III examines the effectiveness of key scientific frameworks for understanding the role of culture in disaster risk reduction and management. DRR includes a range of norms and breaking these through an understanding of cultural will challenge established theoretical and empirical frameworks.

Geospatial Techniques In Urban Hazard And Disaster Analysis

Author : Pamela S. Showalter
ISBN : 9048122384
Genre : Science
File Size : 30. 87 MB
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This book is the second in a series that examines how geographic information te- nologies (GIT) are being implemented to improve our understanding of a variety of hazard and disaster situations. The main types of technologies covered under the umbrella of GIT, as used in this volume, are geographic information systems, remote sensing (not including ground-penetrating or underwater systems), and global po- tioning systems. Our focus is on urban areas, broadly de ned in order to encompass rapidly growing and densely populated areas that may not be considered “urban” in the conventional sense. The material presented here is also unabashedly applied – our goal is to provide GIT tools to those seeking more ef cient ways to respond to, recover from, mitigate, prevent, and/or model hazard and disaster events in urban settings. Therefore, this book was created not only with our colleagues in the academic world in mind, but also for hazards professionals and practitioners. We also believe graduate students will nd the material presented here of interest, as may upper division undergraduate students.

Climate Change And The Sustainable Use Of Water Resources

Author : Walter Leal Filho
ISBN : 3642222668
Genre : Business & Economics
File Size : 77. 16 MB
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The book explores the geo-chemical, physical, social and economic impacts of climate change on water supplies. It contains examples and case studies from a wide range of countries, and addresses the need to promote sustainable water use across the world.

Urban Disaster Resilience And Security

Author : Alexander Fekete
ISBN : 9783319686066
Genre : Social Science
File Size : 30. 62 MB
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This edited book investigates the interrelations of disaster impacts, resilience and security in an urban context. Urban as a term captures megacities, cities, and generally, human settlements, that are characterised by concentration of quantifiable and non-quantifiable subjects, objects and value attributions to them. The scope is to narrow down resilience from an all-encompassing concept to applied ways of scientifically attempting to ‚measure’ this type of disaster related resilience. 28 chapters in this book reflect opportunities and doubts of the disaster risk science community regarding this ‚measurability’. Therefore, examples utilising both quantitative and qualitative approaches are juxtaposed. This book concentrates on features that are distinct characteristics of resilience, how they can be measured and in what sense they are different to vulnerability and risk parameters. Case studies in 11 countries either use a hypothetical pre-event estimation of resilience or are addressing a ‘revealed resilience’ evident and documented after an event. Such information can be helpful to identify benchmarks or margins of impact magnitudes and related recovery times, volumes and qualities of affected populations and infrastructure.

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