W3FT203

The W3FT203 routine converts a northern hemisphere 1.0 degree
            lat.,lon. 361 by 91 grid to a polar stereographic
            45 by 39 grid. The polar stereographic map projection is
            true at 60 deg. N., The mesh length is 190.5 km. and the
            oriention is 150 deg. W.

USAGE:  CALL W3FT203(ALOLA,APOLA,INTERP)

   Input arguments:
      ALOLA  - 361*91 GRID 1.0 LAT,LON GRID N. HEMISPHERE
                      32851 POINT GRID IS O.N. 84 TYPE ?? OR ?? HEX
      INTERP - 1 LINEAR INTERPOLATION , NE.1 BIQUADRATIC
 
   Output arguments:
      APOLA - 45*39 GRID OF NORTHERN HEMISPHERE.
              1755 POINT GRID IS AWIPS GRID TYPE 203
 
   Input files:  NONE

   Output files: ERROR MESSAGE TO FORTRAN OUTPUT FILE
 
REMARKS:
    1. W1 AND W2 ARE USED TO STORE SETS OF CONSTANTS WHICH ARE
       REUSABLE FOR REPEATED CALLS TO THE SUBROUTINE.
 
    2. WIND COMPONENTS ARE NOT ROTATED TO THE 45*39 GRID ORIENTATION
       AFTER INTERPOLATION. YOU MAY USE W3FC08 TO DO THIS.
 
 
W3lib.tar Library contains Fortran 90 decoder/encoder routines for GRIB edition 1. (Fortran90)
Date posted: 2/22/2007