Its not their digital rendition of lake Eyre?
that's a reasonable assumption mate...
if it is just the 'drawn-in' perimeter of lake eyre...why?
is just appears odd....the way it glows...maybe sat images reflection
from a vast shallow area of white,salty flood plain ?
and why bother to sketch/draw in the lake perimeter/area anyway's ?
the green and brown textures are inaccurate...untick the satelite image box on ozzy bom
there is a distinct ' browning' of the entire region.....infantile colouring in book !...live
heeps of 'regular' electro-magnetic frequency action too...if you care to look
p.s...google earth shows nothing peculiar...figures.....