Flood Risk Assessment in the Eastern Part of Dhaka City, Bangladesh: An application of hydro-dynamic model and other geo-informatics tools - Tapa blanda

Gain, Animesh Kumar; Hoque, M. Mozzammel

 
9783847322887: Flood Risk Assessment in the Eastern Part of Dhaka City, Bangladesh: An application of hydro-dynamic model and other geo-informatics tools
Tapa blanda
ISBN 10: 3847322885 ISBN 13: 9783847322887
Editorial: LAP LAMBERT Academic Publishing, 2011

Sinopsis

Dhaka City is surrounded by a network of rivers which makes the city vulnerable to flooding. The present study provides an assessment of flood risk of eastern part of Dhaka City. In the risk assessment task, following flood frequency analysis, flood inundation map is produced using geo-informatics tools. Then secondary depth-duration-damage function of various land use classes is used to produce raster-based vulnerability map. Present monetary value of various land use classes is collected through survey. Then expected damage map is generated as a mathematical product of vulnerability, property value and area in GIS environment. Finally expected damage value is classified into several classes where each class represents risk of the study area. In comparison to the classical inundation maps, produced expected damage map generates more information about the flooding event because they bring into account the effects of flooding. These maps can be useful to evaluate policy alternatives and the results of this study may be used for future flood damage mitigation plan in the study area.

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Reseña del editor

Dhaka City is surrounded by a network of rivers which makes the city vulnerable to flooding. The present study provides an assessment of flood risk of eastern part of Dhaka City. In the risk assessment task, following flood frequency analysis, flood inundation map is produced using geo-informatics tools. Then secondary depth-duration-damage function of various land use classes is used to produce raster-based vulnerability map. Present monetary value of various land use classes is collected through survey. Then expected damage map is generated as a mathematical product of vulnerability, property value and area in GIS environment. Finally expected damage value is classified into several classes where each class represents risk of the study area. In comparison to the classical inundation maps, produced expected damage map generates more information about the flooding event because they bring into account the effects of flooding. These maps can be useful to evaluate policy alternatives and the results of this study may be used for future flood damage mitigation plan in the study area.

Biografía del autor

Animesh Kumar Gain was born in Khulna district of Bangladesh on 1983. He has obtained his BSc in Environmental Science and MSc in Water Resources Development. Currently his research interest is in the field of vulnerability assessment & adaptation of water resources system. He is the author of several articles published in reputed journals.

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Editorial
LAP LAMBERT Academic Publishing
Año de publicación
2011
Idioma
Inglés
ISBN 10 
3847322885
ISBN 13 
9783847322887
Encuadernación
Tapa blanda
Número de páginas
80
Contacto del fabricante
no disponible
Persona responsable
no disponible