1470009                      OBODM (Version xx.x)
                                 DATA FORMAT
  
  E) FIXED FIELD FORMAT TERRAIN DATA -
         Terrain data used to plot contours of terrain.  Values are right-
    justified in their respective field.  This data file can also be used
    to input complex terrain in the receptor data section.  The format is:
  
    record columns                       contents
    ------ ------- ---------------------------------------------------------
       1     1-4   Number of X coordinates (NX) in the terrain data.
             5-8   Number of Y coordinates (NY) in the terrain data.
            9-10   Abbreviation for X,Y units, default = meters.
           11-12   Abbreviation for Z units, default = meters.
     2 - I  1-80   X coordinates (west to east) in 8 column fields, ten
                   fields per input record image (I = {(NX + 9)/10} + 1).
   I+1 - J  1-80   Y coordinates (south to north) in 8 column fields, ten
                   fields per input record image (J = {(NY + 9)/10} + I).
   J+1 - K  1-80   Z terrain height data in 8 column fields, ten fields
                   per input record image.  Enter NX values for each Y
                   coordinate 1 to NY.  Start a new image for each Y
                   coordinate (K = {(NX + 9)/10} * NY + J).
   {} - means integer part
  
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