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COMMAP is an automatic mapping system. It uses an automatic map reader for digitizing the input data, an IBM 704 computer for processing the data and a Benson Lehner Electroplotter for plotting and contouring the output. This system processes, plots, and contours all mappable data. Computations which can be preformed by the system include the following: (1) determination of regionals and residuals by polynomial surface-fitting techniques, (2) determination of regionals and residuals by various ring-average methods, (3) upward and downward continuation of potential field data, (4) first and second vertical derivatives by several methods.
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