For a hydropower study on the White Nile in the Juba Region, a digital terrain model and aerial imaging maps were required for a project area of 1,300 km². Additionally, a differential GPS receiver was used to determine control points during field work.
Aerial imagery maps were generated for planning purposes and included topography and contour lines.
Interpretation of ADS40 imagery data:
Due to the high geometric resolution of the aerial images and the accuracy of the contour lines, it was possible to generate maps with a scale of 1:1000 for sections and 1:5000 for the entire area.