!-------------------------------------- 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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***s/r vspng_drv_tl - TLM of vspng_drv 
*
#include "model_macros_f.h"
*

      subroutine vspng_drv_tl ( F_u   , F_v , F_psd , F_tp  , F_ip  , 1,36
     %                          F_td  , F_t , F_it  , F_plt , F_q   ,
     %                          F_pip , F_w , F_qp  , F_mu  , F_mul , F_s , 
     %                          F_um  , F_vm, F_psdm, F_tpm , F_ipm ,
     %                          F_tdm , F_tm, F_itm , F_pltm, F_qm  ,
     %                          F_pipm, F_wm, F_qpm , F_mum , F_mulm, F_sm, 
     %                          F_xfis, DIST_DIM,Nk)
*
      implicit none
*
      integer DIST_DIM, Nk
      real   F_u  (DIST_SHAPE,Nk), F_v (DIST_SHAPE,Nk),
     %       F_psd(DIST_SHAPE,Nk), F_tp(DIST_SHAPE,Nk),
     %       F_ip (DIST_SHAPE,Nk), F_td(DIST_SHAPE,Nk),
     %       F_t  (DIST_SHAPE,Nk), F_it(DIST_SHAPE,Nk),
     %       F_plt(DIST_SHAPE,Nk), F_q (DIST_SHAPE,Nk),
     %       F_pip(DIST_SHAPE,Nk), F_w (DIST_SHAPE,Nk),
     %       F_qp (DIST_SHAPE,Nk), F_mu(DIST_SHAPE,Nk),
     %       F_mul(DIST_SHAPE,Nk), F_s(DIST_SHAPE), F_xfis(DIST_SHAPE)
*
      real   F_um  (DIST_SHAPE,Nk), F_vm (DIST_SHAPE,Nk),
     %       F_psdm(DIST_SHAPE,Nk), F_tpm(DIST_SHAPE,Nk),
     %       F_ipm (DIST_SHAPE,Nk), F_tdm(DIST_SHAPE,Nk),
     %       F_tm  (DIST_SHAPE,Nk), F_itm(DIST_SHAPE,Nk),
     %       F_pltm(DIST_SHAPE,Nk), F_qm (DIST_SHAPE,Nk),
     %       F_pipm(DIST_SHAPE,Nk), F_wm (DIST_SHAPE,Nk),
     %       F_qpm (DIST_SHAPE,Nk), F_mum(DIST_SHAPE,Nk),
     %       F_mulm(DIST_SHAPE,Nk), F_sm(DIST_SHAPE)
*
*author
*     M.Tanguay
*
*revision
* v2_21 - Tanguay M.        - initial MPI version
* v2_31 - Tanguay M.        - TLM of control for sponge on momentum and
*                             T', T'lin & hence T on Vspng_nk levels + 
*                             sponge on top level only on all other variables
* v3_00 - Tanguay M.        - correction as in vspng_drv 
* v3_01 - Laroche/Tanguay   - correction nj as in vspng_drv 
* v3_01 - Tanguay M.        - adapt to Vspng_rwnd_L 
* v3_03 - Tanguay M.        - Adjoint NoHyd configuration
* v3_11 - Tanguay M.        - AIXport+Opti+OpenMP for TLM-ADJ
* v3_20 - Tanguay M.        - Adjoint of variable higher order diffusion operator 
*                           - Option of storing instead of redoing TRAJ
* v3_30 - Tanguay M.        - adjust TL/AD to Vspng_zmean_L
* v3_31 - Tanguay M.        - add Hzd_rwnd_L 
*
*object
*     see id section
*
*arguments
* 
*implicits
#include "glb_ld.cdk"
#include "dcst.cdk"
#include "cstv.cdk"
#include "schm.cdk"
#include "geomg.cdk"
#include "trp.cdk"
#include "vspng.cdk"
#include "hzd.cdk"
#include "opr.cdk"
#include "v4dr.cdk"
*
      integer i, j, jj, k, nkspng
      real*8 HALF_8,TWO_8,c_8,c1_8
      parameter( HALF_8  = 0.5 )
      parameter(  TWO_8  = 2.0 )
*
      real work(LDIST_SHAPE,Nk),work_m(LDIST_SHAPE,Nk)
      real tmean(l_nj,Nk)
      real*8, dimension (trp_12emax*G_ni*Vspng_nk) :: aix_8,bix_8,cix_8,dix_8
      real*8, dimension (trp_22emax*G_nj*Vspng_nk) :: aiy_8,biy_8,ciy_8
      real*8 cy_8(l_nj+1), xp0_8(G_ni), yp0_8(G_nj)
*     ______________________________________________________
*
      if (V4dr_redotr_L) call gem_stop ('STOP in VSPNG_DRV_TL: REDO Not done for Vspng_zmean_L',-1)
*
      do i = 1, G_ni
         xp0_8 (i) = G_xg_8(i+1) - G_xg_8(i)
      end do
      do j = 1, G_nj
         yp0_8 (j) = sin(G_yg_8(j+1))-sin(G_yg_8(j))
      end do
*
*     Momentum
*     ~~~~~~~~
      if ( Cstv_uvdf_8 .gt. 0.0 ) then
*
*  Substract the mean for the zonal component if wanted
*
         if(Vspng_zmean_L)
     $   call vspng_zmean(F_u,F_u,tmean,DIST_DIM,Nk,.true.)
*
*
*        Horizontal Momentum
*        ~~~~~~~~~~~~~~~~~~~       
         do j = 1, l_nj+1
            cy_8(j) = G_yg_8(l_j0+j-1)
         end do
         c_8 = Cstv_uvdf_8*Cstv_dt_8/(Dcst_rayt_8*Dcst_rayt_8)
         if (Hzd_difva_L) then
           call vspng_abc ( aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,c_8,
     $               cy_8,Hzd_xp0_8,Hzd_xp2_8,Opr_opsyp0_8,Hzd_yp2su_8,
     $               G_ni,G_nj,G_nj)
         else
           call vspng_abc ( aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,c_8,
     $               cy_8,Hzd_xp0_8,Hzd_xp2_8,Opr_opsyp0_8,Opr_opsyp2_8,
     $               G_ni,G_nj,G_nj)
         endif
*
*        TRAJECTORY
*        ----------
         if (V4dr_redotr_L) then
         call vspng_del2 ( F_um, xp0_8, Opr_opsyp0_8(G_nj+1),
     $                 aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                 LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
         endif
*
*        TLM
*        ---
         call vspng_del2 ( F_u, xp0_8, Opr_opsyp0_8(G_nj+1),
     $                 aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                 LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
*
         do j = 1, l_nj+1
            jj = l_j0+j-1
            cy_8(j) = cos((G_yg_8(jj+1)+G_yg_8(jj)) * HALF_8) **TWO_8
         end do
         call vspng_abc ( aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,c_8,
     $               cy_8,Opr_opsxp0_8,Opr_opsxp2_8,Hzd_yp0_8,Hzd_yp2_8,
     $               G_ni,G_nj,G_njv)
*
*        TRAJECTORY
*        ----------
         if (V4dr_redotr_L) then
         call vspng_del2 ( F_vm, Opr_opsxp0_8(G_ni+1), yp0_8,
     $                 aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                 LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_njv)
         endif
*
*        TLM
*        ---
         call vspng_del2 ( F_v, Opr_opsxp0_8(G_ni+1), yp0_8,
     $                 aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                 LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_njv)
*
*  Add back the mean for the zonal component
*
         if (Vspng_zmean_L)
     $       call vspng_zmean(F_u,F_u,tmean,DIST_DIM,Nk,.false.)
*
      endif     
*
      if ( Cstv_phidf_8 .gt. 0.0) then
*
         c_8 = Cstv_phidf_8*Cstv_dt_8/(Dcst_rayt_8*Dcst_rayt_8)
         do j = 1, l_nj+1
            cy_8(j) = G_yg_8(l_j0+j-1)
         end do
         if (Hzd_difva_L) then
           call vspng_abc (aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,c_8,
     $                     cy_8,Opr_opsxp0_8,Opr_opsxp2_8,Opr_opsyp0_8,
     $                     Hzd_yp2su_8,G_ni,G_nj,G_nj)
         else
           call vspng_abc (aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,c_8,
     $                     cy_8,Opr_opsxp0_8,Opr_opsxp2_8,Opr_opsyp0_8,
     $                     Opr_opsyp2_8,G_ni,G_nj,G_nj)
         endif
*
*        Vertical motion
*        ~~~~~~~~~~~~~~~
*
*        TRAJECTORY
*        ----------
         if (V4dr_redotr_L) then
         call vspng_del2 (F_psdm,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
         endif
*
*        TLM
*        ---
         call vspng_del2 (F_psd,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
*
*        Total divergence
*        ~~~~~~~~~~~~~~~~
*
*        TRAJECTORY
*        ----------
         if (V4dr_redotr_L) then
         call vspng_del2 (F_tdm,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
         endif
*
*        TLM
*        ---
         call vspng_del2 (F_td,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)

*
*     The temperature: T', T'lin & hence T
*     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
*        TRAJECTORY
*        ----------
         if (V4dr_redotr_L) then
         call vspng_del2 (F_tpm,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
         endif
*
*        TLM
*        ---
         call vspng_del2 (F_tp,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
*
*        TRAJECTORY
*        ----------
         if (V4dr_redotr_L) then
         call vspng_del2 (F_pltm,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
         endif
*
*        TLM
*        ---
         call vspng_del2 (F_plt,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
*
!$omp parallel 
*
         if (V4dr_redotr_L) then
!$omp do
         do k=1, Vspng_nk
         do j=1, l_nj
         do i=1, l_ni
*
*           TRAJECTORY
*           ----------
            F_tm(i,j,k) = F_tpm(i,j,k) + Cstv_tstr_8
*
         end do
         end do
         end do
!$omp enddo
         endif
*
!$omp do
         do k=1, Vspng_nk
         do j=1, l_nj
         do i=1, l_ni
*
*           TLM
*           ---
            F_t(i,j,k) = F_tp(i,j,k)
*
         end do
         end do
         end do
!$omp enddo
*
!$omp end parallel
*
*     Mass related fields
*     ~~~~~~~~~~~~~~~~~~~
         if (Vspng_uvwdt_L) then
            nkspng   = Vspng_nk
            Vspng_nk = 1
*
            if (Hzd_difva_L) then
              call vspng_abc (aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,
     $                      ciy_8,c_8,cy_8,Opr_opsxp0_8,Opr_opsxp2_8,
     $                      Opr_opsyp0_8,Hzd_yp2su_8,G_ni,G_nj,G_nj)
            else
              call vspng_abc (aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,
     $                      ciy_8,c_8,cy_8,Opr_opsxp0_8,Opr_opsxp2_8,
     $                      Opr_opsyp0_8,Opr_opsyp2_8,G_ni,G_nj,G_nj)
            endif
         endif
*     
*        TRAJECTORY
*        ----------
         if (V4dr_redotr_L) then
         call vspng_del2 (F_ipm,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
         endif
*
*        TLM
*        ---
         call vspng_del2 (F_ip,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
*
*        TRAJECTORY
*        ----------
         if (V4dr_redotr_L) then
         call vspng_del2 (F_itm,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
         endif
*
*        TLM
*        ---
         call vspng_del2 (F_it,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
*
!$omp parallel
*
         if (V4dr_redotr_L) then
!$omp do
         do k = 2, Vspng_nk
         do j = 1, l_nj
         do i = 1, l_ni
*
*           TRAJECTORY
*           ----------
            F_itm(i,j,k) = F_ipm(i,j,k) + Cstvr_fistr_8(k) + F_xfis(i,j)
*
         end do
         end do
         end do
!$omp enddo
         endif
*
!$omp do
         do k = 2, Vspng_nk
         do j = 1, l_nj
         do i = 1, l_ni
*
*           TLM
*           ---
            F_it(i,j,k) = F_ip(i,j,k)
*
         end do
         end do
         end do
!$omp enddo
*
* updating phi' at the top 
*
         if (V4dr_redotr_L) then
!$omp do
         do j = 1, l_nj
         do i = 1, l_ni
*
*           TRAJECTORY
*           ----------
            F_ipm(i,j,1) = F_itm(i,j,1) - Cstvr_fistr_8(1) - F_xfis(i,j)
*
         end do
         end do
!$omp enddo
         endif
*
!$omp do
         do j = 1, l_nj
         do i = 1, l_ni
*
*           TLM
*           ---
            F_ip(i,j,1) = F_it(i,j,1)
*
         end do
         end do
!$omp enddo
*
*     Save pi' for the diffusion of q'
*     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         if ( (.not.Schm_hydro_L) .and. Schm_difqp_L ) then
!$omp do
            do k = 1, Vspng_nk
            do j = 1, l_nj
            do i = 1, l_ni
*
*              TRAJECTORY
*              ----------
               work_m(i,j,k) = F_pipm(i,j,k)
*
*              TLM
*              ---
               work(i,j,k) = F_pip(i,j,k)
*
            end do
            end do
            end do
!$omp enddo
         endif
!$omp end parallel
*
*     The hydrostatic pressure: pi'  
*     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
*        TRAJECTORY
*        ----------
         call vspng_del2 (F_pipm,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
*
*        TLM
*        ---
         call vspng_del2 (F_pip,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
*
*****************************
*  3. Nonyhydrostatic model * 
*****************************
*
         if ( .not. Schm_hydro_L ) then
*
*     Vertical wind (physical) 
*     ~~~~~~~~~~~~~~~~~~~~~~~~
*
*        TRAJECTORY
*        ----------
         if (V4dr_redotr_L) then
         call vspng_del2 (F_wm,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
         endif
*
*        TLM
*        ---
         call vspng_del2 (F_w,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
*
         if ( Schm_difqp_L ) then ! q' & related variables
*
*        TRAJECTORY
*        ----------
         if (V4dr_redotr_L) then
         call vspng_del2 (F_mum,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
         endif
*
*        TLM
*        ---
         call vspng_del2 (F_mu,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
*
*        TRAJECTORY
*        ----------
         if (V4dr_redotr_L) then
         call vspng_del2 (F_mulm,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
         endif
*
*        TLM
*        ---
         call vspng_del2 (F_mul,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
*
*        Indirect diffusion of q' 
*        ~~~~~~~~~~~~~~~~~~~~~~~~
!$omp parallel do
         do k=1, Vspng_nk 
         do j=1, l_nj
         do i=1, l_ni
*
*           TLM
*           ---
            work(i,j,k) = (                dble(work  (i,j,k)) )
     %                       *exp( dble(F_qpm(i,j,k)) )           +
     %                    ( Geomg_z_8(k) + dble(work_m(i,j,k)) )
     %                       *exp( dble(F_qpm(i,j,k)) ) * dble(F_qp(i,j,k))
*
*           TRAJECTORY
*           ----------
            work_m(i,j,k) = ( Geomg_z_8(k) + dble(work_m(i,j,k)) )
     %                       *exp( dble(F_qpm(i,j,k)) )
*
         end do
         end do
         end do
!$omp end parallel do
*
*        TRAJECTORY
*        ----------
         call vspng_del2 (work_m,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
*        TLM
*        ---
         call vspng_del2 (work,
     $                  Opr_opsxp0_8(G_ni+1),Opr_opsyp0_8(G_nj+1),
     $                  aix_8,bix_8,cix_8,dix_8,aiy_8,biy_8,ciy_8,
     $                  LDIST_DIM,Vspng_nk,trp_12emax,trp_22emax,G_nj)
*
!$omp parallel do
         do k=1, Vspng_nk
         do j=1, l_nj
         do i=1, l_ni
*
*           TRAJECTORY
*           ----------
            F_qpm(i,j,k) = log(             dble(work_m(i,j,k))
     %                       /( Geomg_z_8(k) + dble(F_pipm(i,j,k)) )  )
*
*           TLM
*           ---
            F_qp(i,j,k) = (dble(work  (i,j,k))*( Geomg_z_8(k) + dble(F_pipm(i,j,k))) -
     %                     dble(work_m(i,j,k))*(                dble(F_pip (i,j,k))) )
     %                   /(dble(work_m(i,j,k))*( Geomg_z_8(k) + dble(F_pipm(i,j,k))) )
*
         end do
         end do
         end do
!$omp end parallel do
*
         endif
         endif         
*
         if (Vspng_uvwdt_L) Vspng_nk = nkspng
*
      endif
*
*     __________________________________________________________________
*
      return
      end