Andrew Johnston

Image of Geographer Andrew Johnston

Geographer Andrew Johnston in the Kiseiba Oasis region uses GPS equipment to survey the elevations of sand sheet surfaces, which geologists later tied in to orbital data to interpret the position of ancient lakes and waterways.

  • WEB12953-2013

  • Copyright/Owner: Smithsonian Institution
  • Source: National Air and Space Museum, Smithsonian Institution
  • Photographer: Ted Maxwell
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