!-------------------------------------- LICENCE BEGIN ------------------------------------
!Environment Canada - Atmospheric Science and Technology License/Disclaimer,
!                     version 3; Last Modified: May 7, 2008.
!This is free but copyrighted software; you can use/redistribute/modify it under the terms
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!

      subroutine interp_uv_la 1,3
!
      IMPLICIT NONE
#if defined (DOC)
!
!     Author L. Fillion/J-F Caron  - ARMA/MSC - 2 Feb 2010.
!Revision:
!     J-F Caron   - ARMA/EC - 12 June 2008.
!                   V2 with wind interpolation toward Araka_c grid
!
#endif
!
#include "taglam4d.cdk"
#include "pardim.cdk"
#include "comdim.cdk"
#include "comgrd_param.cdk"
#include "comlun.cdk"
#include "comct0.cdk"
#include "comcst.cdk"
#include "comgd1.cdk"
#include "comgdpar.cdk"
#include "namgdpar.cdk"
#include "compdg.cdk"
#include "comgem.cdk"
#include "comgrd.cdk"
#include "comcva.cdk"
!
      character*1 clpart
      integer ji,jj,jlev,jvar,inij,inip1,injp1,iflag,ivrbl
      real*8  zmin,zmax
      real*8 zwrkflt(ni,nflev,nj)
      real*8 zwrkflt2(ni,nflev,nj)
      real*8 zwrkflt3(ni,nflev,nj)
      real*8 zwrkflt4(ni,nflev,nj)
!
!!
      write(nulout,*) 'Begin interp_uv_la'
!
!*1.  Interpolate winds towards Arakawa-C grid for Helmholtz's functions
!     ------------------------------------------------------------------
!
        do ji=1,ni
          do jj=1,nj
            do jlev=1,nflev
              zwrkflt(ji,jlev,jj) = ut1(ji,jlev,jj)
              zwrkflt2(ji,jlev,jj) = vt1(ji,jlev,jj)
          enddo
          enddo
        enddo
!
        call uv_acg2g_ez(zwrkflt3,zwrkflt4,zwrkflt,zwrkflt2,'S2A')
!
!       Redo periodicization to correct data at ni (for U) and nj (for V)
!
        call mach3(zwrkflt3,ni,nj,nflev,inip1,injp1)
        call mach3(zwrkflt4,ni,nj,nflev,inip1,injp1)
!
        do ji=1,ni
          do jj=1,nj
            do jlev=1,nflev
              ut1(ji,jlev,jj) = zwrkflt3(ji,jlev,jj)
              vt1(ji,jlev,jj) = zwrkflt4(ji,jlev,jj)
            enddo
          enddo
        enddo
!
      return
      end