| AFOS graphics created by NMC - :12722 | National Weather Service (NWS)
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AFOS graphics created by NMC
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  • Description:
    "The purpose of this Office Note is to document in detail NMC's procedure which produces AFOS graphics in vectorized code from the existing scan line format which produces the automated FAX/VARIAN maps. The first and most important aspect of this procedure is the "scrambled AFOS file", which the CNTR package produces. This file contains pieces of contours in delta-X, delta-Y format that are output onto a file as the CNTR program scans through a line in the map. The vectors have a label attached to them so that they may be identified as belonging to a certain contour. The starting position of these contours are output along with their value. The processing code pieces the vectors together to form AFOS contours"--Introduction.

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