W3FT205

The W3FT205 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 60 deg. W. pole point is at
            (i,j) = (27,57). New map is awips map 205.

USAGE:  CALL W3FT205(ALOLA,APOLA,INTERP)

   Input arguments:
      ALOLA  - 361*91 GRID 1.0 LAT,LON GRID N. HEMISPHERE
               32851 POINT GRID. 360 * 181 ONE DEGREE
               GRIB GRID 3 WAS FLIPPED, GREENWISH ADDED
               TO RIGH SIDE AND CUT TO 361 * 91.
      INTERP - 1 LINEAR INTERPOLATION , NE.1 BIQUADRATIC

   Output arguments:
      APOLA - 45*39 GRID OF NORTHERN HEMISPHERE.
              1755 POINT GRID IS AWIPS GRID TYPE 205

   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