W3FT05V

The W3FT05V routine converts a northern hemisphere 2.5 degree
           lat.,lon. 145 by 37 grid to a polar stereographic 65 by 65
           grid. The polar stereographic map projection is true at
           60 deg. north , the mesh length is 381 km. and the oriention
           is 80 deg. west.

USAGE:  CALL W3FT05V(ALOLA,APOLA,INTERP)

   Input argument list:
      ALOLA  - 145*37 GID 2.5 LAT,LON GRID N. HEMISPHERE
                5365 POINT GRID IS O.N. 84 TYPE 29 OR 1D HEX
                INTERP - 1 LINEAR INTERPOLATION , NE.1 BIQUADRATIC

   Output argument list:
      APOLA - 65*65 GRID OF NORTHERN HEMISPHERE.
              4225 POINT GRID IS O.N.84 TYPE 27 OR 1B HEX

   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 65*65 GRID ORIENTATION
       AFTER INTERPOLATION. YOU MAY USE W3FC08 TO DO THIS.
 
    3. THE GRID POINTS VALUES ON THE EQUATOR HAVE BEEN EXTRAPOLATED
       OUTWARD TO ALL THE GRID POINTS OUTSIDE THE EQUATOR ON THE 65*65
       GRID (ABOUT 1100 POINTS).

 


  
W3lib.tar
  
Library contains Fortran 90 decoder/encoder
   routines for GRIB edition 1. (Fortran90) 

   Date posted: 2/22/2007