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Quantification of annual settlement growth in rural mining areas using machine learning

Dietler, D. and Farnham, A. and de Hoogh , K. and Winkler, M. S.. (2020) Quantification of annual settlement growth in rural mining areas using machine learning. Remote Sensing, 12 (2). p. 235.

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Abstract

Studies on annual settlement growth have mainly focused on larger cities or incorporated data rarely available in, or applicable to, sparsely populated areas in sub-Saharan Africa, such as aerial photography or night-time light data. The aim of the present study is to quantify settlement growth in rural communities in Burkina Faso affected by industrial mining, which often experience substantial in-migration. A multi-annual training dataset was created using historic Google Earth imagery. Support vector machine classifiers were fitted on Landsat scenes to produce annual land use classification maps. Post-classification steps included visual quality assessments, majority voting of scenes of the same year and temporal consistency correction. Overall accuracy in the four studied scenes ranged between 58.5% and 95.1%. Arid conditions and limited availability of Google Earth imagery negatively affected classification accuracy. Humid study sites, where training data could be generated in proximity to the areas of interest, showed the highest classification accuracies. Overall, by relying solely on freely and globally available imagery, the proposed methodology is a promising approach for tracking fast-paced population dynamics in rural areas where population data is scarce. With the growing availability of longitudinal high-resolution imagery, including data from the Sentinel satellites, the potential applications of the methodology presented will further increase in the future
Faculties and Departments:09 Associated Institutions > Swiss Tropical and Public Health Institute (Swiss TPH) > Department of Epidemiology and Public Health (EPH) > Eco System Health Sciences > Health Impact Assessment (Winkler)
UniBasel Contributors:Dietler, Dominik and Farnham, Andrea and de Hoogh, Kees and Winkler, Mirko
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:MDPI
e-ISSN:2072-4292
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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edoc DOI:
Last Modified:05 Mar 2020 12:22
Deposited On:05 Mar 2020 12:22

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