Images from the Directorate of Overseas Surveys Archive

Figure 1 The following images show Sirua in the Rift Valley, Kenya, in 1948, 1984 and 2015:

a) 1948 

b) 1984 (earliest available Landsat image)

c) 2015 (contemporary high resolution satellite imagery)

Notes: The image shows the Northeastern boundary of South Nandi Forest Reserve, in the Rift Valley in Kenya. The top image is from the Directorate of Overseas Surveys archive, hand orthorectified using ground control points, and dating from 1948. Central image is the earliest available Landsat image for this area, dating from 1984. Bottom image source is contemporary ESRI World Imagery (2015). 

Figure 2 The following images show Kibera in Nairobi, Kenya, in 1948 and 2015:

a) 1948 

b) 2016

Notes: Image shows Kibera in Nairobi, Kenya. The top image is from the Directorate of Overseas Surveys archive, hand orthorectified using ground control points, and dating from 1948. Bottom image source is contemporary ESRI World Imagery (2016).