x2uvc() - interpolate grid-points

INTERFACE:

    subroutine x2uvc()
    IMPLICIT NONE

DESCRIPTION:

This routine interpolates (latx,lonx), (xx,yx), and convx to the u-points, v-points, and the central T-points. The data at the T-points are only updated from values of the X-points if the logical flags updateXYC, updateXYC, and updateXYC are .true.. This is not necessary if data at the T-points have been read from the topo input file. REVISION HISTORY:

    Original author(s): Lars Umlauf

LOCAL VARIABLES:

    integer                   :: i,j,n
    REALTYPE                  :: x