Fusion of data from differing mathematical models

A process for automatically merging data from first and second mathematical models incorporating at least one each horizontal and vertical datums, at least one of either said horizontal or vertical datums differing between said two mathematical models, at least said vertical datums incorporated in a geoid model, comprising:

• importing said first and second mathematical models into a geographic information system (GIS);
• automatically determining said at least one each horizontal and vertical datums employed by each said first and second mathematical models;
• automatically projecting each said determined datums to a common three-dimensional (3-D) datum;
• automatically identifying each said geoid model for each said first and second mathematical models;
• automatically determining at least one value of separation between corresponding data points within first and second sets of data points, said first and second sets of data points corresponding to said at least one differing datum in each said first and second mathematical models, respectively;
• automatically applying a correction to said first set of corresponding data points of said first mathematical model based on said determination of said at least one value of separation and retaining said second set of corresponding data points of said second mathematical model unchanged,
• wherein said correction adjusts for vertical offsets between said first mathematical model and said second mathematical model;
• and
• employing GIS commands, automatically fusing into a third mathematical model data representing said corrected first of said mathematical models with data representing said unchanged second of said mathematical models.