ana_dqdsst.h

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!!
      SUBROUTINE ana_dqdsst (ng, tile, model)
!
!! git $Id$
!!======================================================================
!! Copyright (c) 2002-2025 The ROMS Group                              !
!!   Licensed under a MIT/X style license                              !
!!   See License_ROMS.md                                               !
!=======================================================================
!                                                                      !
!  This subroutine sets surface net heat flux sensitivity dQdSTT to    !
!  SST using analytical expressions.  The forcing dQdSTT is usually    !
!  computed in units of (Watts/m2/degC).  It needs to be scaled to     !
!  (m/s/degC) by dividing by rho0*Cp.  This field is used when the     !
!  surface heat flux correction is activated:                          !
!                                                                      !
!       Q_model ~ Q + dQdSST * (T_model - SST)                         !
!                                                                      !
!=======================================================================
!
      USE mod_param
      USE mod_forces
      USE mod_grid
      USE mod_ncparam
!
! Imported variable declarations.
!
      integer, intent(in) :: ng, tile, model
!
! Local variable declarations.
!
      character (len=*), parameter :: MyFile =                          &
     &  __FILE__
!
#include "tile.h"
!
      CALL ana_dqdsst_tile (ng, tile, model,                            &
     &                      lbi, ubi, lbj, ubj,                         &
     &                      imins, imaxs, jmins, jmaxs,                 &
     &                      grid(ng) % Hz,                              &
     &                      forces(ng) % dqdt)
!
! Set analytical header file name used.
!
#ifdef DISTRIBUTE
      IF (lanafile) THEN
#else
      IF (lanafile.and.(tile.eq.0)) THEN
#endif
        ananame(38)=myfile
      END IF
!
      RETURN
      END SUBROUTINE ana_dqdsst
!
!***********************************************************************
      SUBROUTINE ana_dqdsst_tile (ng, tile, model,                      &
     &                            LBi, UBi, LBj, UBj,                   &
     &                            IminS, ImaxS, JminS, JmaxS,           &
     &                            Hz, dqdt)
!***********************************************************************
!
      USE mod_param
      USE mod_grid
      USE mod_scalars
!
      USE exchange_2d_mod, ONLY : exchange_r2d_tile
#ifdef DISTRIBUTE
      USE mp_exchange_mod, ONLY : mp_exchange2d
#endif
!
! 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)  :: Hz(LBi:,LBj:,:)
      real(r8), intent(out) :: dqdt(LBi:,LBj:)
#else
      real(r8), intent(in)  :: Hz(LBi:UBi,LBj:UBj,1:N(ng))
      real(r8), intent(out) :: dqdt(LBi:UBi,LBj:UBj)
#endif
!
! Local variable declarations.
!
      integer :: i, j
!
      real(r8) :: fac
 
#include "set_bounds.h"
!
!-----------------------------------------------------------------------
!  Set surface heat flux sensitivity to SST (m/s/degC).
!-----------------------------------------------------------------------
!
#ifdef MY_APPLICATION
      fac=day2sec/30.0_r8            ! 30 day relaxation scale 1/s/decC
      DO j=jstrt,jendt
        DO i=istrt,iendt
          dqdt(i,j)=fac*hz(i,j,n(ng))
        END DO
      END DO
#else
      DO j=jstrt,jendt
        DO i=istrt,iendt
          dqdt(i,j)=???
        END DO
      END DO
#endif
!
!  Exchange boundary data.
!
      IF (ewperiodic(ng).or.nsperiodic(ng)) THEN
        CALL exchange_r2d_tile (ng, tile,                               &
     &                          lbi, ubi, lbj, ubj,                     &
     &                          dqdt)
      END IF
 
#ifdef DISTRIBUTE
      CALL mp_exchange2d (ng, tile, model, 1,                           &
     &                    lbi, ubi, lbj, ubj,                           &
     &                    nghostpoints,                                 &
     &                    ewperiodic(ng), nsperiodic(ng),               &
     &                    dqdt)
#endif
!
      RETURN
      END SUBROUTINE ana_dqdsst_tile