Das Glitzern der Sonne aus der Umlaufbahn zeigt, wo sich das Wasser befindet. Details in den Kommentaren.

Solar water witching from orbit; where there is water there is sun glint. Sunlight will reflect off of standing water giving a mirrored silvery reflection as if the water were mercury. Seen here is a river in the Congo region in sun glint (photo 1) and a few seconds later showing normal appearance (photo 2).