Fig. 1From: Estimating the size of urban populations using Landsat images: a case study of Bo, Sierra Leone, West AfricaBo sections ordered by population density. The 20 surveyed sections of Bo City ordered by population density \(d = (persons)/km^2\). The inset in the upper left includes a map of Africa, with Sierra Leone highlighted in red and Bo City in blue (Source: OCHA/ReliefWeb). The larger map shows Bo City, the survey locationBack to article page