Community-based assessment of coastal erosion in Lagos, Nigeria
Coastal erosion is a natural process that constantly reconfigures beaches, either in a landward or seaward direction. This study aims to assess the situation, causes, and impacts of coastal erosion on selected communities in Lagos State, Nigeria. Three local government areas (LGAs) that share bounda...
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Veröffentlicht in: | Natural hazards (Dordrecht) 2022-12, Vol.114 (3), p.3657-3682 |
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Sprache: | eng |
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Zusammenfassung: | Coastal erosion is a natural process that constantly reconfigures beaches, either in a landward or seaward direction. This study aims to assess the situation, causes, and impacts of coastal erosion on selected communities in Lagos State, Nigeria. Three local government areas (LGAs) that share boundaries with the coast (Ibeju-Lekki, Eti-Osa and Badagry-West LGAs) were purposively sampled. Google Earth Pro images were acquired from Landsat, Copernicus, Maxar technologies, and TerraMetrics for 1984, 1999 and 2021 to analyze shoreline movement dynamics using Digital Shoreline Analysis Software. A structured questionnaire was used to elicit information on the communities' perceptions. We used the convenience sampling method to administer 670 samples of the questionnaire at a 95.52% response rate. Images analysis revealed that Eti-Osa has the highest erosion distance (98.54 m) at an erosion rate of 8.88 m/year, while Badagry-West LGA has the least erosion distance (25.82 m) at an erosion rate of −2.31 m/year. This confirms the respondents’ perception of coastline erosion and accretion which varies significantly across communities at
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ISSN: | 0921-030X 1573-0840 |
DOI: | 10.1007/s11069-022-05536-z |