W3FT214

The W3FT214 routine converts a northern hemisphere 1.0
            degree lat.,lon. 361 by 91 grid to a Polar Stereographic
            97 by 69 grid. The Polar Stereographic map projection is
            true at 60 deg. N. , The mesh length is 47.625 km. and
            the oriention is 150 deg. W.
            AWIPS grid 214 Regional - Alaska - double resolution

USAGE:  CALL W3FT214(ALOLA,APOLA,INTERP)

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

   Output arguments:
      APOLA - 97*69 GRID OF NORTHERN HEMISPHERE.
              6693 POINT GRID IS AWIPS GRID TYPE 214

   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 97*69 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