Flood vulnerability assessment in the Accra Metropolis, southeastern Ghana

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dc.authoridSunkari, Emmanuel Daanoba/0000-0002-0898-2286
dc.authoridDekongmen, Benjamin Wullobayi/0000-0001-7047-7937
dc.authoridDomfeh, Martin Kyereh/0000-0001-6612-7301
dc.contributor.authorDekongmen, Benjamin Wullobayi
dc.contributor.authorKabo-bah, Amos Tiereyangn
dc.contributor.authorDomfeh, Martin Kyereh
dc.contributor.authorSunkari, Emmanuel Daanoba
dc.contributor.authorDile, Yihun Taddele
dc.contributor.authorAntwi, Eric Ofosu
dc.contributor.authorGyimah, Rita Akosua Anima
dc.date.accessioned2024-11-07T13:34:49Z
dc.date.available2024-11-07T13:34:49Z
dc.date.issued2021
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractFloods in Ghana have become a perennial challenge in the major cities and communities located in low-lying areas. Therefore, cities and communities located in these areas have been classified as potential or natural flood-prone zones. In this study, the Digital Elevation Model (DEM) of the Accra Metropolis was used to assess the drainage density and elevation patterns of the area. The annual population estimation data and flood damages were assessed to understand the damages and population trend. This research focused primarily on the elevation patterns, slope patterns, and drainage density of the Accra Metropolis. Very high drainage density values, which range between 149 and 1117 m/m(2), showed very high runoff converging areas. High drainage density was also found to be in the range of 1117-1702 m/m(2), which defined the area as a high runoff converging point. The medium and low converging points of runoff were also found to be ranging between 1702-2563 m/m(2) and 2563-4070 m/m(2), respectively. About 32% of the study area is covered by natural flood-prone zones, whereas flood-prone zones also covered 33% and frequent flood zones represent 25%. Areas in the Accra Metropolis that fall in the Accraian and Togo series rock types experience high floods. However, the lineament networks (geological structures) that dominate the Dahomeyan series imply that the geological structures in the Dahomeyan series also channel the runoffs into the low-lying areas, thereby contributing to the perennial flooding in the Accra Metropolis.
dc.identifier.doi10.1007/s13201-021-01463-9
dc.identifier.issn2190-5487
dc.identifier.issn2190-5495
dc.identifier.issue7
dc.identifier.scopus2-s2.0-85114037644
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/s13201-021-01463-9
dc.identifier.urihttps://hdl.handle.net/11480/16173
dc.identifier.volume11
dc.identifier.wosWOS:000691431900002
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer Heidelberg
dc.relation.ispartofApplied Water Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectAccra Metropolis
dc.subjectContours
dc.subjectDrainage density
dc.subjectFlood-prone areas
dc.subjectGeology
dc.subjectWaterways
dc.titleFlood vulnerability assessment in the Accra Metropolis, southeastern Ghana
dc.typeArticle

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