INTERFACE:
subroutine celledge_global (nlat, nlon, numlon, longxy, latixy, &
lats, lonw )
DESCRIPTION:
Southern and western edges of grid cells - global grid
Latitudes -- southern/northern edges for each latitude strip.
For grids oriented South to North, the southern
and northern edges of latitude strip [j] are:
southern = lats(j )
northern = lats(j+1)
For grids oriented North to South: the southern
and northern edges of latitude strip [j] are:
northern = lats(j )
southern = lats(j+1)
In both cases, [lats] must be dimensioned lats(lat+1)
Longitudes -- western edges. Longitudes for the western edge of the
cells must increase continuously and span 360 degrees.
ARGUMENTS:
implicit none
integer , intent(in) :: nlat !dimension: number of latitude points
integer , intent(in) :: nlon !dimension: number of longitude points
integer , intent(in) :: numlon(nlat) !number of grid cells per latitude strip
real(r8), intent(in) :: longxy(nlon,nlat) !longitude at center of grid cell
real(r8), intent(in) :: latixy(nlon,nlat) !latitude at center of grid cell
real(r8), intent(out):: lats(nlat+1) !grid cell latitude, southern edge (degrees)
real(r8), intent(out):: lonw(nlon+1,nlat) !grid cell longitude, western edge (degrees)
REVISION HISTORY:
Created by Mariana Vertenstein