W3FC08
The W3FC08 routine computes the grid-oriented U and V wind components
at the given the earth-oriented wind components on a Northern
hemisphere polar stereographic grid point.
USAGE: CALL W3FC08 (FFID, FFJD, FU, FV, FGU, FGV)
Input argument list:
FFID - REAL I-DISPLACEMENT FROM POINT TO NORTH POLE IN
GRID UNITS
FFJD - REAL J-DISPLACEMENT FROM POINT TO NORTH POLE IN
GRID UNITS
FU - REAL EARTH-ORIENTED U-COMPONENT, POSITIVE FROM WEST
FV - REAL EARTH-ORIENTED V-COMPONENT, POSITIVE FROM EAST
Output argument list:
FGU - REAL GRID-ORIENTED U-COMPONENT. MAY REFERENCE
SAME LOCATION AS FU.
FGV - REAL GRID-ORIENTED V-COMPONENT. MAY REFERENCE
SAME LOCATION AS FV.
REMARKS:
FFID and FFJD may be calculated as follows:
FFID = REAL(IP - I)
FFJD = REAL(JP - J)
Where (ip, jp) are the grid coordinates of the north pole and
(i,j) are the grid coordinates of the point.
W3lib.tar |
Library contains Fortran 90 decoder/encoder
routines for GRIB edition 1. (Fortran90)
Date posted: 2/22/2007 |