170 lines
7.1 KiB
Fortran
Executable File
170 lines
7.1 KiB
Fortran
Executable File
MODULE usrdef_sbc
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!!======================================================================
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!! *** MODULE usrdef_sbc ***
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!!
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!! === BENCH configuration ===
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!!
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!! User defined : surface forcing of a user configuration
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!!======================================================================
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!! History : 4.0 !
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!!----------------------------------------------------------------------
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!!----------------------------------------------------------------------
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!! usr_def_sbc : user defined surface bounday conditions in BENCH case
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!!----------------------------------------------------------------------
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USE par_oce ! ocean space and time domain
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USE dom_oce
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USE oce ! ocean dynamics and tracers
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USE sbc_oce ! Surface boundary condition: ocean fields
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USE sbc_ice ! Surface boundary condition: ocean fields
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USE in_out_manager ! I/O manager
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USE phycst ! physical constants
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USE lib_mpp ! MPP library
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USE lbclnk ! lateral boundary conditions - mpp exchanges
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#if defined key_si3
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USE ice, ONLY : at_i_b, a_i_b
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#endif
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IMPLICIT NONE
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PRIVATE
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PUBLIC usrdef_sbc_oce ! routine called by sbcmod.F90 for sbc ocean
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PUBLIC usrdef_sbc_ice_tau ! routine called by icestp.F90 for ice dynamics
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PUBLIC usrdef_sbc_ice_flx ! routine called by icestp.F90 for ice thermo
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!! * Substitutions
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# include "do_loop_substitute.h90"
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!!----------------------------------------------------------------------
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!! NEMO/OPA 4.0 , NEMO Consortium (2016)
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!! $Id$
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!! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
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!!----------------------------------------------------------------------
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CONTAINS
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SUBROUTINE usrdef_sbc_oce( kt, Kbb )
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!!---------------------------------------------------------------------
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!! *** ROUTINE usr_def_sbc ***
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!!
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!! ** Purpose : provide at each time-step the surface boundary
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!! condition, i.e. the momentum, heat and freshwater fluxes.
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!!
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!! ** Method : all 0 fields, for BENCH case
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!! CAUTION : never mask the surface stress field !
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!!
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!! ** Action : - set to ZERO all the ocean surface boundary condition, i.e.
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!! utau, vtau, taum, wndm, qns, qsr, emp, sfx
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!!
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!!----------------------------------------------------------------------
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INTEGER, INTENT(in) :: kt ! ocean time step
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INTEGER, INTENT(in) :: Kbb ! ocean time index
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!!---------------------------------------------------------------------
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!
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IF( kt == nit000 ) THEN
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!
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IF(lwp) WRITE(numout,*)' usr_sbc : BENCH case: surface forcing'
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IF(lwp) WRITE(numout,*)' ~~~~~~~~~~~ vtau = taum = wndm = qns = qsr = emp = sfx = 0'
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!
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utau(:,:) = 0._wp
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vtau(:,:) = 0._wp
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taum(:,:) = 0._wp
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wndm(:,:) = 0._wp
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!
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emp (:,:) = 0._wp
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sfx (:,:) = 0._wp
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qns (:,:) = 0._wp
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qsr (:,:) = 0._wp
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!
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utau_b(:,:) = 0._wp
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vtau_b(:,:) = 0._wp
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emp_b (:,:) = 0._wp
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sfx_b (:,:) = 0._wp
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qns_b (:,:) = 0._wp
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!
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ENDIF
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!
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END SUBROUTINE usrdef_sbc_oce
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SUBROUTINE usrdef_sbc_ice_tau( kt )
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!!---------------------------------------------------------------------
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!! *** ROUTINE usrdef_sbc_ice_tau ***
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!!
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!! ** Purpose : provide the surface boundary (momentum) condition over
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!sea-ice
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!!---------------------------------------------------------------------
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INTEGER, INTENT(in) :: kt ! ocean time step
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!
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REAL(wp) :: zztmp
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INTEGER :: ji, jj
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!!---------------------------------------------------------------------
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#if defined key_si3
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IF( kt==nit000 .AND. lwp) WRITE(numout,*)' usrdef_sbc_ice : BENCH case: constant stress forcing'
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!
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! define unique value on each point. z2d ranging from 0.05 to -0.05
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!
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DO_2D( 0, 0, 0, 0 )
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zztmp = 0.1 * ( 0.5 - REAL( mig0(ji) + (mjg0(jj)-1) * Ni0glo, wp ) / REAL( Ni0glo * Nj0glo, wp ) )
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utau_ice(ji,jj) = 0.1_wp + zztmp
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vtau_ice(ji,jj) = 0.1_wp + zztmp
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END_2D
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CALL lbc_lnk( 'usrdef_sbc', utau_ice, 'U', -1._wp, vtau_ice, 'V', -1._wp )
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#endif
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!
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END SUBROUTINE usrdef_sbc_ice_tau
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SUBROUTINE usrdef_sbc_ice_flx( kt, phs, phi )
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!!---------------------------------------------------------------------
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!! *** ROUTINE usrdef_sbc_ice_flx ***
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!!
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!! ** Purpose : provide the surface boundary (flux) condition over sea-ice
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!!---------------------------------------------------------------------
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INTEGER, INTENT(in) :: kt ! ocean time step
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REAL(wp), DIMENSION(:,:,:), INTENT(in) :: phs ! snow thickness
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REAL(wp), DIMENSION(:,:,:), INTENT(in) :: phi ! ice thickness
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!!
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REAL(wp), DIMENSION(jpi,jpj) :: zsnw ! snw distribution after wind blowing
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!!---------------------------------------------------------------------
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#if defined key_si3
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!
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IF( kt==nit000 .AND. lwp) WRITE(numout,*)' usrdef_sbc_ice : BENCH case: NO flux forcing'
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!
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! ocean variables (renaming)
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emp_oce (:,:) = 0._wp ! uniform value for freshwater budget (E-P)
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qsr_oce (:,:) = 0._wp ! uniform value for solar radiation
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qns_oce (:,:) = 0._wp ! uniform value for non-solar heat flux
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! ice variables
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alb_ice (:,:,:) = 0.7_wp ! useless
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qsr_ice (:,:,:) = 0._wp ! uniform value for solar radiation
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qns_ice (:,:,:) = 0._wp ! uniform value for non-solar heat flux
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dqns_ice(:,:,:) = 0._wp ! uniform value for non solar heat flux sensitivity for ice
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sprecip (:,:) = 0._wp ! uniform value for snow precip
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evap_ice(:,:,:) = 0._wp ! uniform value for sublimation
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! ice fields deduced from above
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zsnw(:,:) = 1._wp
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!!CALL lim_thd_snwblow( at_i_b, zsnw ) ! snow distribution over ice after wind blowing
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emp_ice (:,:) = SUM( a_i_b(:,:,:) * evap_ice(:,:,:), dim=3 ) - sprecip(:,:) * zsnw(:,:)
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emp_oce (:,:) = emp_oce(:,:) - sprecip(:,:) * (1._wp - zsnw(:,:) )
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qevap_ice(:,:,:) = 0._wp
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qprec_ice(:,:) = rhos * ( sst_m(:,:) * rcpi - rLfus ) * tmask(:,:,1) ! in J/m3
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qemp_oce (:,:) = - emp_oce(:,:) * sst_m(:,:) * rcp
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qemp_ice (:,:) = sprecip(:,:) * zsnw * ( sst_m(:,:) * rcpi - rLfus ) * tmask(:,:,1) ! solid precip (only)
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! total fluxes
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emp_tot (:,:) = emp_ice + emp_oce
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qns_tot (:,:) = at_i_b(:,:) * qns_oce(:,:) + SUM( a_i_b(:,:,:) * qns_ice(:,:,:), dim=3 ) + qemp_ice(:,:) + qemp_oce(:,:)
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qsr_tot (:,:) = at_i_b(:,:) * qsr_oce(:,:) + SUM( a_i_b(:,:,:) * qsr_ice(:,:,:), dim=3 )
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! --- shortwave radiation transmitted thru the surface scattering layer (W/m2) --- !
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qtr_ice_top(:,:,:) = 0._wp
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#endif
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END SUBROUTINE usrdef_sbc_ice_flx
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!!======================================================================
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END MODULE usrdef_sbc
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