SUBROUTINE GRGG (XLAT, XLON, ni, nj, roots, mode)

ARGUMENTS

OUT

XLAT(NI,NJ)  latitude field                                   real
XLON(NI,NJ)  longitude field                                  real

IN

NI           number of points per cercle of latitude          integer
NJ           number of points per cercle of longitude         integer
ROOTS(NJ)    roots of the Legendre polynomial used to define 
             the latitude nodes of the gaussian grid          real
MODE         type of grid (0:global; 1:north; 2:south)        integer
  (1,NJ)      (NI,NJ)  
   +-------------+
   |             | 
   |             |  arrays XLAT and XLON 
   |             |
   |             |
   |             |
   +-------------+
  (1,1)       (NI,1)

DESCRIPTION

EXAMPLE

NOTES

SEE ALSO