SUBROUTINE ana_initial (ng, tile, model)
!
!! git $Id$
!! svn $Id: ana_initial.h 1180 2023-07-13 02:42:10Z arango $
!!======================================================================
!! Copyright (c) 2002-2023 The ROMS/TOMS Group                         !
!!   Licensed under a MIT/X style license                              !
!!   See License_ROMS.md                                               !
!=======================================================================
!                                                                      !
!  This subroutine sets initial conditions for momentum and tracer     !
!  type variables using analytical expressions.                        !
!                                                                      !
!=======================================================================
!
      USE mod_param
      USE mod_grid
      USE mod_ncparam
      USE mod_ocean
      USE mod_stepping
!
! Imported variable declarations.
!
      integer, intent(in) :: ng, tile, model
!
! Local variable declarations.
!
      character (len=*), parameter :: MyFile =                          &
     &  __FILE__
!
#include "tile.h"
!
      IF (model.eq.iNLM) THEN
        CALL ana_NLMinitial_tile (ng, tile, model,                      &
     &                            LBi, UBi, LBj, UBj,                   &
     &                            IminS, ImaxS, JminS, JmaxS,           &
     &                            GRID(ng) % h,                         &
#ifdef SPHERICAL
     &                            GRID(ng) % lonr,                      &
     &                            GRID(ng) % latr,                      &
#else
     &                            GRID(ng) % xr,                        &
     &                            GRID(ng) % yr,                        &
#endif
#ifdef SOLVE3D
     &                            GRID(ng) % z_r,                       &
     &                            OCEAN(ng) % u,                        &
     &                            OCEAN(ng) % v,                        &
     &                            OCEAN(ng) % t,                        &
#endif
     &                            OCEAN(ng) % ubar,                     &
     &                            OCEAN(ng) % vbar,                     &
     &                            OCEAN(ng) % zeta)
      END IF
!
! Set analytical header file name used.
!
#ifdef DISTRIBUTE
      IF (Lanafile) THEN
#else
      IF (Lanafile.and.(tile.eq.0)) THEN
#endif
        ANANAME(10)=MyFile
      END IF
!
      RETURN
      END SUBROUTINE ana_initial
!
!***********************************************************************
      SUBROUTINE ana_NLMinitial_tile (ng, tile, model,                  &
     &                                LBi, UBi, LBj, UBj,               &
     &                                IminS, ImaxS, JminS, JmaxS,       &
     &                                h,                                &
#ifdef SPHERICAL
     &                                lonr, latr,                       &
#else
     &                                xr, yr,                           &
#endif
#ifdef SOLVE3D
     &                                z_r,                              &
     &                                u, v, t,                          &
#endif
     &                                ubar, vbar, zeta)
!***********************************************************************
!
      USE mod_param
      USE mod_grid
      USE mod_scalars
!
!  Imported variable declarations.
!
      integer, intent(in) :: ng, tile, model
      integer, intent(in) :: LBi, UBi, LBj, UBj
      integer, intent(in) :: IminS, ImaxS, JminS, JmaxS
!
#ifdef ASSUMED_SHAPE
      real(r8), intent(in) :: h(LBi:,LBj:)
# ifdef SPHERICAL
      real(r8), intent(in) :: lonr(LBi:,LBj:)
      real(r8), intent(in) :: latr(LBi:,LBj:)
# else
      real(r8), intent(in) :: xr(LBi:,LBj:)
      real(r8), intent(in) :: yr(LBi:,LBj:)
# endif
# ifdef SOLVE3D
      real(r8), intent(in) :: z_r(LBi:,LBj:,:)

      real(r8), intent(out) :: u(LBi:,LBj:,:,:)
      real(r8), intent(out) :: v(LBi:,LBj:,:,:)
      real(r8), intent(out) :: t(LBi:,LBj:,:,:,:)
# endif
      real(r8), intent(out) :: ubar(LBi:,LBj:,:)
      real(r8), intent(out) :: vbar(LBi:,LBj:,:)
      real(r8), intent(out) :: zeta(LBi:,LBj:,:)
#else
# ifdef SPHERICAL
      real(r8), intent(in) :: lonr(LBi:UBi,LBj:UBj)
      real(r8), intent(in) :: latr(LBi:UBi,LBj:UBj)
# else
      real(r8), intent(in) :: xr(LBi:UBi,LBj:UBj)
      real(r8), intent(in) :: yr(LBi:UBi,LBj:UBj)
# endif
      real(r8), intent(in) :: h(LBi:UBi,LBj:UBj)
# ifdef SOLVE3D
      real(r8), intent(in) :: z_r(LBi:UBi,LBj:UBj,N(ng))

      real(r8), intent(out) :: u(LBi:UBi,LBj:UBj,N(ng),2)
      real(r8), intent(out) :: v(LBi:UBi,LBj:UBj,N(ng),2)
      real(r8), intent(out) :: t(LBi:UBi,LBj:UBj,N(ng),3,NT(ng))
# endif
      real(r8), intent(out) :: ubar(LBi:UBi,LBj:UBj,:)
      real(r8), intent(out) :: vbar(LBi:UBi,LBj:UBj,:)
      real(r8), intent(out) :: zeta(LBi:UBi,LBj:UBj,:)
#endif
!
!  Local variable declarations.
!
      integer :: i, itrc, j, k
!
      real(r8) :: depth, dx, val1, val2, val3, val4, x, x0, y, y0

#include "set_bounds.h"
!
!-----------------------------------------------------------------------
!  Initial conditions for 2D momentum (m/s) components.
!-----------------------------------------------------------------------
!
#if defined MY_APPLICATION
      DO j=JstrT,JendT
        DO i=IstrP,IendT
          ubar(i,j,1)=???
        END DO
      END DO
      DO j=JstrP,JendT
        DO i=IstrT,IendT
          vbar(i,j,1)=???
        END DO
      END DO
#else
      DO j=JstrT,JendT
        DO i=IstrP,IendT
          ubar(i,j,1)=0.0_r8
        END DO
      END DO
      DO j=JstrP,JendT
        DO i=IstrT,IendT
          vbar(i,j,1)=0.0_r8
        END DO
      END DO
#endif
!
!-----------------------------------------------------------------------
!  Initial conditions for free-surface (m).
!-----------------------------------------------------------------------
!
#if defined MY_APPLICATION
      DO j=JstrT,JendT
        DO i=IstrT,IendT
          zeta(i,j,1)=???
        END DO
      END DO
#else
      DO j=JstrT,JendT
        DO i=IstrT,IendT
          zeta(i,j,1)=0.0_r8
        END DO
      END DO
#endif

#ifdef SOLVE3D
!
!-----------------------------------------------------------------------
!  Initial conditions for 3D momentum components (m/s).
!-----------------------------------------------------------------------
!
# if defined MY_APPLICATION
      DO k=1,N(ng)
        DO j=JstrT,JendT
          DO i=IstrP,IendT
            u(i,j,k,1)=???
          END DO
        END DO
        DO j=JstrP,JendT
          DO i=IstrT,IendT
            v(i,j,k,1)=???
          END DO
        END DO
      END DO
# else
      DO k=1,N(ng)
       DO j=JstrT,JendT
         DO i=IstrP,IendT
            u(i,j,k,1)=0.0_r8
          END DO
        END DO
        DO j=JstrP,JendT
          DO i=IstrT,IendT
            v(i,j,k,1)=0.0_r8
          END DO
        END DO
      END DO
# endif
!
!-----------------------------------------------------------------------
!  Initial conditions for tracer type variables.
!-----------------------------------------------------------------------
!
!  Set initial conditions for potential temperature (Celsius) and
!  salinity (PSU).
!
# if defined MY_APPLICATION
      DO k=1,N(ng)
        DO j=JstrT,JendT
          DO i=IstrT,IendT
            t(i,j,k,1,itemp)=???
#  ifdef SALINITY
            t(i,j,k,1,isalt)=???
#  endif
          END DO
        END DO
      END DO
# else
      DO k=1,N(ng)
        DO j=JstrT,JendT
          DO i=IstrT,IendT
            t(i,j,k,1,itemp)=T0(ng)
#  ifdef SALINITY
            t(i,j,k,1,isalt)=S0(ng)
#  endif
          END DO
        END DO
      END DO
# endif
#endif
!
      RETURN
      END SUBROUTINE ana_NLMinitial_tile