Assessment of Chlorophyll-a Concentrations in the Lagoon, Lagos State, Nigeria

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dc.contributor.authorAyeni, A.O.
dc.contributor.authorAdesalu, T.A.
dc.contributor.authorAro, J.K.
dc.date.accessioned2021-10-22T18:15:06Z
dc.date.available2021-10-22T18:15:06Z
dc.date.issued2018
dc.descriptionScholarly articlesen_US
dc.description.abstractRemote sensing data is another possible option for mapping chlorophyll-a (Chl-a) present in all phytoplankton species. This study estimates chlorophyll-a concentration in Lagos Lagoon using Landsat 7 (ETM+) and Landsat 8 (OLI) data. Landsat data were first geometrically corrected. The techniques used were band rationing and regression modelling. The brightness values were converted to reflectance through the radiometric correction process, while the regression models, logarithmically transformed chlorophyll-a was used as the dependent variable. The single bands, band ratios and logarithmically transformed band ratios were used as the independent variables. Subsequently, the R2 values were computed and calculated using the results generated from regression models. The Chl-a concentration generated showed reasonable results but the concentrations across the study lagoon was impacted by the ocean current with distance from Atlantic Ocean. The study concluded that the Landsat 7 and 8 images were effective in estimating chl-a concentration and producing chl-a spatio-temporal map.en_US
dc.identifier.citationAyeni, A. O., T. A. Adesalu and J. K. Aro (2018). Assessment of Chlorophyll-a Concentrations in the Lagoon, Lagos State, Nigeria, Ife Research Publications in Geography, 16 (1): 13-24en_US
dc.identifier.issn0795-073x
dc.identifier.urihttps://ir.unilag.edu.ng/handle/123456789/9653
dc.language.isoenen_US
dc.publisherDepartment of Geography, Obafemi Awolowo University (OAU), Ile-Ife, Nigeriaen_US
dc.subjectWater qualityen_US
dc.subjectChlorophyll-aen_US
dc.subjectAssessmenten_US
dc.subjectLaboratoryen_US
dc.subjectRemote sensingen_US
dc.subjectSatellite imageryen_US
dc.subjectResearch Subject Categories::SOCIAL SCIENCESen_US
dc.titleAssessment of Chlorophyll-a Concentrations in the Lagoon, Lagos State, Nigeriaen_US
dc.typeArticleen_US
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