I am new to the GIS Topic and I hope someone can help me in the following. I am looking for elevation data for the whole world in the form of
- a database (Latitude; Longitude; Elevation(Level over the Sea))
- in form of a colourmap (Bitmap or SVG) in Mercator Projection without any shadows. It means that each colour represents only its height.
Can you give me a hint where I can find it, or where to search for?