I've been looking, too. Ever since I heard that NASA launched a radar mapping mission aboard Endeavor a few years ago. I figured JPL or someone would have earth models in IGES that I could download. Maybe it's available commercially, I don't know. There really should be something, don't you think!?!
Then the next thing is: how to project a map onto a sphere. Creating the sphere in Pro/e is no problem. Scaling is somewhat of a problem. But this is all relatively simple math. How about using the map curves as projected curves? (Is that what Mecator Projection means? What is the appropriate projection?) Anyway, some projection of a map, as projected curves, may produce what you need. Then it is relatively simple, with an outline, to create a protusion.