Kalahari Desert, Namibia, True Colour Satellite Image. True colour satellite image of the Kalahari desert, at the frontier between Namibia and South Africa. The dunes are red-coloured by iron oxyds. The blue dots are argillakeeous basins, still filled with water. The white dotes are salted basins that show how dry this plakee is. Image taken on 3 March 1989 using LANDSAT data.