1. An apparatus configured to generate a surface topology map of a surface, comprising: a computing system operative with a profiling apparatus, the computing system comprising one or more inputs configured to receive: a plurality of profile sample points received from the profiling apparatus generated as the profiling apparatus roves across the surface to be mapped; a plurality of survey sample points of the surface; and a processor configured to: correlate the profile sample points with the survey sample points in the Z direction; merge the plurality of survey sample points and the correlated profile sample points; and generate the surface topology map of the surface from the merged plurality of survey sample points and the correlated profile sample points.