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!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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!
C
C  X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X
C

      subroutine ainmi_Chi(pgdpsi,pgdchi,lddiab) 1,15
*
***s/r ainmi_Chi  - Used by INMI approach.
*
*Author  : Luc Fillion -
*Revision:
*  Luc Fillion - ARMA/EC - Implement in v_11_01b.
*
*     -------------------
**    Purpose: Used for LA-XD-Var analysis
*
*Arguments
*     none
*
      implicit none
#include "taglam4d.cdk"
#include "comdim.cdk"
#include "comgrd_param.cdk"
#include "comcst.cdk"
#include "comcva.cdk"
#include "comgd0.cdk"
#include "comgd1.cdk"
#include "compdg.cdk"
#include "comlun.cdk"
#include "comcorr.cdk"
#include "comgdpar.cdk"
#include "comin.cdk"
#include "comode.cdk"
!
      logical lddiab
      real*8 pgdpsi(ni,nflev,nj)
      real*8 pgdchi(ni,nflev,nj)
!
      logical llout
      integer ifois,ji,jj,jk,idim
      integer idum1,idum2,idum3,idum4
      real*8 zmin,zmax
      data ifois/0/
      save ifois
!
      real*8 zvort(ni,nflev,nj)
      real*8 zdiv(ni,nflev,nj)
      real*8 zp(ni,nflev,nj)
      real*8 ztt0(ni,nflev,nj)
      real*8 zq0(ni,nflev,nj)
      real*8 zgz(ni,nflev,nj)
      real*8 zdel_phi(ni,nflev,nj)
      real*8 zdel_tt(ni,nflev,nj)
      real*8 zdel_vort(ni,nflev,nj)
      real*8 zdel_div(ni,nflev,nj)
      real*8 zdel_psi(ni,nflev,nj)
      real*8 zdel_chi(ni,nflev,nj)
      real*8 zdel_lnps(ni,nj)
      real*8 zlnps(ni,nj)
      real*8 zps0(ni,nj)
*
**
      write(nulout,*) 'AINMI BEGINS'
!
      idim = ni*nj*nflev
      call zero(idim,zdel_psi)
      call zero(idim,zdel_chi)
      call zero(idim,zdel_tt)
      call zero(idim,zdel_vort)
      call zero(idim,zdel_div)
      call zero(idim,zvort)
      call zero(idim,zdiv)
      call zero(idim,zp)
      call zero(idim,zgz)
      call zero(idim,ztt0)
      call zero(idim,zq0)
      idim = ni*nj
      call zero(idim,zdel_lnps)
      call zero(idim,zlnps)
      call zero(idim,zps0)
!
! Adjoint of: 
!
      do ji=1,ni
        do jj=1,nj
          do jk=1,nflev
            ztt0(ji,jk,jj) = tt0(ji,jk,jj)
            tt0(ji,jk,jj) = 0.0
            zq0(ji,jk,jj) = q0(ji,jk,jj)
            q0(ji,jk,jj) = 0.0
          enddo
        enddo
      enddo
      do ji=1,ni
        do jj=1,nj
          zps0(ji,jj) = gps0(ji,1,jj)
          gps0(ji,1,jj) = 0.0
        enddo
      enddo
!
!      call ainmi_pc(zdel_psi,pgdchi,zdel_vort,zdel_div)
!      call ainmi_soldiv(zp,zvort,zdel_div)
!      call ainmi_ptend(zvort,zdiv,zp,zgz,zlnps)
      call ainmi_tend0(zvort,zdiv,zgz,zlnps,pgdpsi,lddiab)
!
! Adjoint of: 
!
      do ji=1,ni
        do jj=1,nj
          do jk=1,nflev
            tt0(ji,jk,jj) =  ztt0(ji,jk,jj) + tt0(ji,jk,jj)
            q0(ji,jk,jj) =  zq0(ji,jk,jj) + q0(ji,jk,jj)
          enddo
        enddo
      enddo
      do ji=1,ni
        do jj=1,nj
          gps0(ji,1,jj) =  zps0(ji,jj) + gps0(ji,1,jj)
        enddo
      enddo
!
      return
      end