Flood hazard delineation in Greater Dhaka, Bangladesh using an integrated GIS and remote sensing approach

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The objective of this paper is to delineate flood hazard areas for the greatest flood of 1998 in Greater Dhaka, the capital of Bangladesh. Multi-date RADARSAT Synthetic Aperture Radar (SAR) and Geographical Information System (GIS) data were used for this purpose. Flood frequency and floodwater depth were calculated using SAR data for the development of flood hazard maps. Flood hazard maps were created using a ranking matrix with land-cover, geomorphic units and elevation data as GIS components. The result of the study demonstrated that a major portion of Greater Dhaka constitutes high to very high hazard zones while only a little portion is not exposed to the potential flood hazard. It is expected that the proposed flood hazard maps will be useful to mitigate losses of lives and property from recurrent flood disasters in Greater Dhaka of Bangladesh.

Original languageEnglish
Pages (from-to)33-38
Number of pages6
JournalGeocarto International
Volume21
Issue number2
DOIs
Publication statusPublished - 2006

Fingerprint

Bangladesh
Geographical Information System
natural disaster
GIS
hazard
remote sensing
synthetic aperture radar
RADARSAT
flood frequency
ranking
disaster
land cover
matrix

ASJC Scopus subject areas

  • Water Science and Technology
  • Geography, Planning and Development

Cite this

@article{a7d1055bddee4f6c85bd91614154e5ad,
title = "Flood hazard delineation in Greater Dhaka, Bangladesh using an integrated GIS and remote sensing approach",
abstract = "The objective of this paper is to delineate flood hazard areas for the greatest flood of 1998 in Greater Dhaka, the capital of Bangladesh. Multi-date RADARSAT Synthetic Aperture Radar (SAR) and Geographical Information System (GIS) data were used for this purpose. Flood frequency and floodwater depth were calculated using SAR data for the development of flood hazard maps. Flood hazard maps were created using a ranking matrix with land-cover, geomorphic units and elevation data as GIS components. The result of the study demonstrated that a major portion of Greater Dhaka constitutes high to very high hazard zones while only a little portion is not exposed to the potential flood hazard. It is expected that the proposed flood hazard maps will be useful to mitigate losses of lives and property from recurrent flood disasters in Greater Dhaka of Bangladesh.",
author = "Dewan, {Ashraf M.} and Takashi Kumamoto and Makoto Nishigaki",
year = "2006",
doi = "10.1080/10106040608542381",
language = "English",
volume = "21",
pages = "33--38",
journal = "Geocarto International",
issn = "1010-6049",
publisher = "Taylor and Francis Ltd.",
number = "2",

}

TY - JOUR

T1 - Flood hazard delineation in Greater Dhaka, Bangladesh using an integrated GIS and remote sensing approach

AU - Dewan, Ashraf M.

AU - Kumamoto, Takashi

AU - Nishigaki, Makoto

PY - 2006

Y1 - 2006

N2 - The objective of this paper is to delineate flood hazard areas for the greatest flood of 1998 in Greater Dhaka, the capital of Bangladesh. Multi-date RADARSAT Synthetic Aperture Radar (SAR) and Geographical Information System (GIS) data were used for this purpose. Flood frequency and floodwater depth were calculated using SAR data for the development of flood hazard maps. Flood hazard maps were created using a ranking matrix with land-cover, geomorphic units and elevation data as GIS components. The result of the study demonstrated that a major portion of Greater Dhaka constitutes high to very high hazard zones while only a little portion is not exposed to the potential flood hazard. It is expected that the proposed flood hazard maps will be useful to mitigate losses of lives and property from recurrent flood disasters in Greater Dhaka of Bangladesh.

AB - The objective of this paper is to delineate flood hazard areas for the greatest flood of 1998 in Greater Dhaka, the capital of Bangladesh. Multi-date RADARSAT Synthetic Aperture Radar (SAR) and Geographical Information System (GIS) data were used for this purpose. Flood frequency and floodwater depth were calculated using SAR data for the development of flood hazard maps. Flood hazard maps were created using a ranking matrix with land-cover, geomorphic units and elevation data as GIS components. The result of the study demonstrated that a major portion of Greater Dhaka constitutes high to very high hazard zones while only a little portion is not exposed to the potential flood hazard. It is expected that the proposed flood hazard maps will be useful to mitigate losses of lives and property from recurrent flood disasters in Greater Dhaka of Bangladesh.

UR - http://www.scopus.com/inward/record.url?scp=33847214236&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33847214236&partnerID=8YFLogxK

U2 - 10.1080/10106040608542381

DO - 10.1080/10106040608542381

M3 - Article

AN - SCOPUS:33847214236

VL - 21

SP - 33

EP - 38

JO - Geocarto International

JF - Geocarto International

SN - 1010-6049

IS - 2

ER -