IJKGDS0

The IJKGDS0 routine decodes the grib grid description section
            and returns a navigation parameter array to allow function
            IJKGDS1 to decode the field position for a given grid point.

USAGE:    CALL IJKGDS0(KGDS,IJKGDSA)

   Input argument list:
      KGDS     - INTEGER (200) GDS PARAMETERS AS DECODED BY W3FI63
 
   Output argument list:
      IJKGDSA  - INTEGER (20) NAVIGATION PARAMETER ARRAY
                 IJKGDSA(1) IS NUMBER OF X POINTS
                 IJKGDSA(2) IS NUMBER OF Y POINTS
                 IJKGDSA(3) IS X WRAPAROUND INCREMENT
                            (0 IF NO WRAPAROUND)
                 IJKGDSA(4) IS Y WRAPAROUND LOWER PIVOT POINT
                            (0 IF NO WRAPAROUND)
                 IJKGDSA(5) IS Y WRAPAROUND UPPER PIVOT POINT
                            (0 IF NO WRAPAROUND)
                 IJKGDSA(6) IS SCANNING MODE
                            (0 IF X FIRST THEN Y; 1 IF Y FIRST THEN X;
                             2 IF STAGGERED DIAGONAL LIKE PROJECTION 201;
                             3 IF STAGGERED DIAGONAL LIKE PROJECTION 203)
                 IJKGDSA(7) IS MASS/WIND FLAG FOR STAGGERED DIAGONAL
                            (0 IF MASS; 1 IF WIND)
                 IJKGDSA(8:20) ARE UNUSED AT THE MOMENT
 
 


  
iplib.tar
  
Library contains subroutines to be used for
   interpolating almost any grids used at NCEP. (Fortran90) 

   Date posted: 2/22/2007