W3FI20

The W3FI20 routine extracts the NMC 1977 point Octagon grid points out of
           a 65X65 (4225 POINT) array.

USAGE:  CALL W3FI20 (A,B)

   Input variables:
      A      REAL*4 (65 X 65 GRID, 4225 POINT) ARRAY
             GRID IS OFFICE NOTE 84 TYPE 27 OR 1B HEX

   Output variables:
      B      1977 POINT ARRAY (OCTAGON) OFFICE NOTE 84 TYPE
             0 OR HEX 0.

REMARKS: Arrays a and b may be the same array or be equivalenced,
         in which case the first 1977 words of 'a' are written over.

 
W3lib.tar Library contains Fortran 90 decoder/encoder routines for GRIB edition 1. (Fortran90)
Date posted: 2/22/2007