Next Article in Journal
Performance of Three Different Native Plant Mixtures for Extensive Green Roofs in a Humid Subtropical Climate Context
Previous Article in Journal
Coupling Coordination Assessment on Sponge City Construction and Its Spatial Pattern in Henan Province, China
Article

Application of an Index-Based Approach in Geospatial Techniques for the Mapping of Flood Hazard Areas: A Case of Cape Coast Metropolis in Ghana

1
College of Geomatics, Shandong University of Science and Technology, Qingdao 266590, China
2
First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
3
Department of Geography and Regional Planning, Faculty of Social Sciences, College of Humanities and Legal Studies, University of Cape Coast, Cape Coast University Post Office, Cape Coast, Ghana
4
Center for Social Research in Health, University of New South Wales, Sydney 2052, Australia
*
Authors to whom correspondence should be addressed.
Water 2020, 12(12), 3483; https://doi.org/10.3390/w12123483
Received: 16 October 2020 / Revised: 18 November 2020 / Accepted: 7 December 2020 / Published: 11 December 2020
(This article belongs to the Section Hydrology and Hydrogeology)
Floods remain one of the disasters that destroy properties, livelihoods, and in extreme situations, take lives. As a way of prevention, geospatial applications have been employed in many cities to map flood zones and predict floods. For a country such as Ghana, floods have been ranked as the second fatal disaster after epidemics leading to several kinds of research to resolve them. To date, the Cape Coast Metropolis (CCM) has received little attention in terms of research, though flood cases in the area continue to escalate. This study, therefore, examines the use of geospatial techniques as tools in addressing flood problems in the CCM of Ghana. From a Digital Elevation Model, hydrologic variables were generated using the ArcGIS software (Esri, Redlands, CA, USA). The soil drainage classification for the study was generated from a downloaded African Soil Grid Drainage map, while other important factors that influenced flooding in the CCM were obtained from Landsat 8 imagery. Over 21% of the CCM was classified as high flood hazard zones with areas around the river Kakum estuary being flood hotspots. It is, therefore, recommended that the CCM Assembly fund dredging of streams/rivers and promote afforestation along river banks to reduce the risk of flooding within the metropolis. View Full-Text
Keywords: flood; hazard; mapping; geospatial; GIS; remote sensing; index-based; Cape Coast; Ghana flood; hazard; mapping; geospatial; GIS; remote sensing; index-based; Cape Coast; Ghana
Show Figures

Graphical abstract

MDPI and ACS Style

Danso, S.Y.; Ma, Y.; Adjakloe, Y.D.A.; Addo, I.Y. Application of an Index-Based Approach in Geospatial Techniques for the Mapping of Flood Hazard Areas: A Case of Cape Coast Metropolis in Ghana. Water 2020, 12, 3483. https://doi.org/10.3390/w12123483

AMA Style

Danso SY, Ma Y, Adjakloe YDA, Addo IY. Application of an Index-Based Approach in Geospatial Techniques for the Mapping of Flood Hazard Areas: A Case of Cape Coast Metropolis in Ghana. Water. 2020; 12(12):3483. https://doi.org/10.3390/w12123483

Chicago/Turabian Style

Danso, Samuel Y.; Ma, Yi; Adjakloe, Yvonne D.A.; Addo, Isaac Y. 2020. "Application of an Index-Based Approach in Geospatial Techniques for the Mapping of Flood Hazard Areas: A Case of Cape Coast Metropolis in Ghana" Water 12, no. 12: 3483. https://doi.org/10.3390/w12123483

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop