W3FT06V
The W3FT06V routine converts a southern 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. south , the mesh length is 381 km. and the
oriention is 260 deg. west.
USAGE: CALL W3FT06V(ALOLA,APOLA,INTERP)
Input variables:
ALOLA - 145*37 GID 2.5 LAT,LON GRID S. HEMISHERE
5365 POINT GRID IS O.N.84 TYPE 30 OR 1E HEX
INTERP - 1 LINEAR INTERPOLATION , NE.1 BIQUADRATIC
Output variables:
APOLA - 65*65 GRID OF NORTHERN HEMI.
4225 POINT GRID IS O.N.84 TYPE 28 OR 1C 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 W3FC10 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 |