NDLI: Sea erosion at Ada Foah: assessment of impacts and proposed mitigation measures

Content Provider	Springer Nature Link
Author	Kusimi, John Manyimadin Dika, James Lawer
Copyright Year	2012
Abstract	Sea erosion is a serious threat to life and property in coastal towns. The coastline of Ada Foah has been facing sea erosion and occasional flooding for several decades. This research investigated the socio-economic and environmental impacts of these geomorphic processes using social survey methods of data collection and shoreline change analysis. The main research tools used include questionnaire survey, interviews and Digital Shoreline Analysis System (DSAS) 4.2 software using extracted shorelines of 1926 ground survey sheet and 2008 Landsat ETM+ image to determine shoreline change between the periods. The research identified some environmental and socio-economic impacts of the sea erosion on the coastal community, and these include the destruction of coastal ecosystems and infrastructure such as offices of institutions, school blocks and roads. The ramifications of these problems include homelessness, unemployment and poverty, which compel victims to migrate. Results of shoreline change analysis indicate that, the Ada Foah shoreline has been receding since 1926 to date with a mean change in shoreline of 280.49 m and an average annual rate of 3.46 m/year. To protect the coastline from the battering sea, a sea defence project, comprising sand nourishment and the construction of groynes, is being undertaken.
Starting Page	983
Ending Page	997
Page Count	15
File Format	PDF
ISSN	0921030X
Journal	Natural Hazards
Volume Number	64
Issue Number	2
e-ISSN	15730840
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-09-16
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ada Foah Coastal mapping Sea erosion Shoreline recession Shoreline change analysis Geophysics/Geodesy Hydrogeology Geotechnical Engineering & Applied Earth Sciences Environmental Management Civil Engineering Natural Hazards
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science Water Science and Technology

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