! $Id$

SUBROUTINE addfi_loc(pdt, leapf, forward, &
        pucov, pvcov, pteta, pq   , pps , &
        pdufi, pdvfi, pdhfi,pdqfi, pdpfi  )
  USE parallel_lmdz
  USE infotrac, ONLY: nqtot
  USE control_mod, ONLY: planet_type
  IMPLICIT NONE
  !
  !=======================================================================
  !
  !    Addition of the physical tendencies
  !
  !    Interface :
  !    -----------
  !
  !  Input :
  !  -------
  !  pdt                    time step of integration
  !  leapf                  logical
  !  forward                logical
  !  pucov(ip1jmp1,llm)     first component of the covariant velocity
  !  pvcov(ip1ip1jm,llm)    second component of the covariant velocity
  !  pteta(ip1jmp1,llm)     potential temperature
  !  pts(ip1jmp1,llm)       surface temperature
  !  pdufi(ip1jmp1,llm)     |
  !  pdvfi(ip1jm,llm)       |   respective
  !  pdhfi(ip1jmp1)         |      tendencies
  !  pdtsfi(ip1jmp1)        |
  !
  !  Output :
  !  --------
  !  pucov
  !  pvcov
  !  ph
  !  pts
  !
  !
  !=======================================================================
  !
  !-----------------------------------------------------------------------
  !
  !    0.  Declarations :
  !    ------------------
  !
  include "dimensions.h"
  include "paramet.h"
  include "comgeom.h"
  !
  !    Arguments :
  !    -----------
  !
  REAL,INTENT(IN) :: pdt ! time step for the integration (s)
  !
  REAL,INTENT(INOUT) :: pvcov(ijb_v:ije_v,llm) ! covariant meridional wind
  REAL,INTENT(INOUT) :: pucov(ijb_u:ije_u,llm) ! covariant zonal wind
  REAL,INTENT(INOUT) :: pteta(ijb_u:ije_u,llm) ! potential temperature
  REAL,INTENT(INOUT) :: pq(ijb_u:ije_u,llm,nqtot) ! tracers
  REAL,INTENT(INOUT) :: pps(ijb_u:ije_u) ! surface pressure (Pa)
  ! respective tendencies (.../s) to add
  REAL,INTENT(IN) :: pdvfi(ijb_v:ije_v,llm)
  REAL,INTENT(IN) :: pdufi(ijb_u:ije_u,llm)
  REAL,INTENT(IN) :: pdqfi(ijb_u:ije_u,llm,nqtot)
  REAL,INTENT(IN) :: pdhfi(ijb_u:ije_u,llm)
  REAL,INTENT(IN) :: pdpfi(ijb_u:ije_u)
  !
  LOGICAL,INTENT(IN) :: leapf,forward ! not used
  !
  !
  !    Local variables :
  !    -----------------
  !
  REAL :: xpn(iim),xps(iim),tpn,tps
  INTEGER :: j,k,iq,ij
  REAL,PARAMETER :: qtestw = 1.0e-15
  REAL,PARAMETER :: qtestt = 1.0e-40

  REAL :: SSUM
  EXTERNAL SSUM

  INTEGER :: ijb,ije
  !
  !-----------------------------------------------------------------------

  ijb=ij_begin
  ije=ij_end

!$OMP DO SCHEDULE(STATIC,OMP_CHUNK)
  DO k = 1,llm
     DO j = ijb,ije
        pteta(j,k)= pteta(j,k) + pdhfi(j,k) * pdt
     ENDDO
  ENDDO
!$OMP END DO NOWAIT

  if (pole_nord) then
!$OMP DO SCHEDULE(STATIC,OMP_CHUNK)
    DO  k    = 1, llm
     DO  ij   = 1, iim
       xpn(ij) = aire(   ij   ) * pteta(  ij    ,k)
     ENDDO
     tpn      = SSUM(iim,xpn,1)/ apoln

     DO ij   = 1, iip1
       pteta(   ij   ,k)  = tpn
     ENDDO
   ENDDO
!$OMP END DO NOWAIT
  endif

  if (pole_sud) then
!$OMP DO SCHEDULE(STATIC,OMP_CHUNK)
    DO  k    = 1, llm
     DO  ij   = 1, iim
       xps(ij) = aire(ij+ip1jm) * pteta(ij+ip1jm,k)
     ENDDO
     tps      = SSUM(iim,xps,1)/ apols

     DO ij   = 1, iip1
       pteta(ij+ip1jm,k)  = tps
     ENDDO
   ENDDO
!$OMP END DO NOWAIT
  endif
  !

  ijb=ij_begin
  ije=ij_end
  if (pole_nord) ijb=ij_begin+iip1
  if (pole_sud)  ije=ij_end-iip1

!$OMP DO SCHEDULE(STATIC,OMP_CHUNK)
  DO k = 1,llm
     DO j = ijb,ije
        pucov(j,k)= pucov(j,k) + pdufi(j,k) * pdt
     ENDDO
  ENDDO
!$OMP END DO NOWAIT

  if (pole_nord) ijb=ij_begin

!$OMP DO SCHEDULE(STATIC,OMP_CHUNK)
  DO k = 1,llm
     DO j = ijb,ije
        pvcov(j,k)= pvcov(j,k) + pdvfi(j,k) * pdt
     ENDDO
  ENDDO
!$OMP END DO NOWAIT

  !
  if (pole_sud)  ije=ij_end
!$OMP MASTER
  DO j = ijb,ije
     pps(j) = pps(j) + pdpfi(j) * pdt
  ENDDO
!$OMP END MASTER

  if (planet_type=="earth") then
  ! earth case, special treatment for first 2 tracers (water)
  DO iq = 1, 2
!$OMP DO SCHEDULE(STATIC,OMP_CHUNK)
     DO k = 1,llm
        DO j = ijb,ije
           pq(j,k,iq)= pq(j,k,iq) + pdqfi(j,k,iq) * pdt
           pq(j,k,iq)= AMAX1( pq(j,k,iq), qtestw )
        ENDDO
     ENDDO
!$OMP END DO NOWAIT
  ENDDO

  DO iq = 3, nqtot
!$OMP DO SCHEDULE(STATIC,OMP_CHUNK)
     DO k = 1,llm
        DO j = ijb,ije
           pq(j,k,iq)= pq(j,k,iq) + pdqfi(j,k,iq) * pdt
           pq(j,k,iq)= AMAX1( pq(j,k,iq), qtestt )
        ENDDO
     ENDDO
!$OMP END DO NOWAIT
  ENDDO
  else
  ! general case, treat all tracers equally)
   DO iq = 1, nqtot
!$OMP DO SCHEDULE(STATIC,OMP_CHUNK)
     DO k = 1,llm
        DO j = ijb,ije
           pq(j,k,iq)= pq(j,k,iq) + pdqfi(j,k,iq) * pdt
           pq(j,k,iq)= AMAX1( pq(j,k,iq), qtestt )
        ENDDO
     ENDDO
!$OMP END DO NOWAIT
   ENDDO
  endif ! of if (planet_type=="earth")

!$OMP MASTER
  if (pole_nord) then

    DO  ij   = 1, iim
      xpn(ij) = aire(   ij   ) * pps(  ij     )
    ENDDO

    tpn      = SSUM(iim,xpn,1)/apoln

    DO ij   = 1, iip1
      pps (   ij     )  = tpn
    ENDDO

  endif

  if (pole_sud) then

    DO  ij   = 1, iim
      xps(ij) = aire(ij+ip1jm) * pps(ij+ip1jm )
    ENDDO

    tps      = SSUM(iim,xps,1)/apols

    DO ij   = 1, iip1
      pps ( ij+ip1jm )  = tps
    ENDDO

  endif
!$OMP END MASTER

  if (pole_nord) then
    DO iq = 1, nqtot
!$OMP DO SCHEDULE(STATIC,OMP_CHUNK)
      DO  k    = 1, llm
        DO  ij   = 1, iim
          xpn(ij) = aire(   ij   ) * pq(  ij    ,k,iq)
        ENDDO
        tpn      = SSUM(iim,xpn,1)/apoln

        DO ij   = 1, iip1
          pq (   ij   ,k,iq)  = tpn
        ENDDO
      ENDDO
!$OMP END DO NOWAIT	
    ENDDO
  endif

  if (pole_sud) then
    DO iq = 1, nqtot
!$OMP DO SCHEDULE(STATIC,OMP_CHUNK)
      DO  k    = 1, llm
        DO  ij   = 1, iim
          xps(ij) = aire(ij+ip1jm) * pq(ij+ip1jm,k,iq)
        ENDDO
        tps      = SSUM(iim,xps,1)/apols

        DO ij   = 1, iip1
          pq (ij+ip1jm,k,iq)  = tps
        ENDDO
      ENDDO
!$OMP END DO NOWAIT	
    ENDDO
  endif



END SUBROUTINE addfi_loc