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IF(TRIM( sn_snd_ifrac%cldes ) == 'coupled') ssnd(jps_ficet)%laction = .TRUE.
SELECT CASE ( TRIM( sn_snd_thick%cldes ) )
CASE( 'none' ) ! nothing to do
CASE( 'ice and snow' )
ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
IF( TRIM( sn_snd_thick%clcat ) == 'yes' ) THEN
ssnd(jps_hice:jps_hsnw)%nct = nn_cats_cpl
ENDIF
CASE ( 'weighted ice and snow' )
ssnd(jps_hice:jps_hsnw)%laction = .TRUE.
IF( TRIM( sn_snd_thick%clcat ) == 'yes' ) ssnd(jps_hice:jps_hsnw)%nct = nn_cats_cpl
CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_thick%cldes' )
END SELECT
! ! ------------------------- !
! ! Ice Meltponds !
! ! ------------------------- !
! Needed by Met Office
ssnd(jps_a_p)%clname = 'OPndFrc'
ssnd(jps_ht_p)%clname = 'OPndTck'
SELECT CASE ( TRIM( sn_snd_mpnd%cldes ) )
CASE ( 'none' )
ssnd(jps_a_p)%laction = .FALSE.
ssnd(jps_ht_p)%laction = .FALSE.
CASE ( 'ice only' )
ssnd(jps_a_p)%laction = .TRUE.
ssnd(jps_ht_p)%laction = .TRUE.
IF( TRIM( sn_snd_mpnd%clcat ) == 'yes' ) THEN
ssnd(jps_a_p)%nct = nn_cats_cpl
ssnd(jps_ht_p)%nct = nn_cats_cpl
ELSE
IF( nn_cats_cpl > 1 ) THEN
CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_mpnd%cldes if not exchanging category fields' )
ENDIF
ENDIF
CASE ( 'weighted ice' )
ssnd(jps_a_p)%laction = .TRUE.
ssnd(jps_ht_p)%laction = .TRUE.
IF( TRIM( sn_snd_mpnd%clcat ) == 'yes' ) THEN
ssnd(jps_a_p)%nct = nn_cats_cpl
ssnd(jps_ht_p)%nct = nn_cats_cpl
ENDIF
CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_mpnd%cldes; '//sn_snd_mpnd%cldes )
END SELECT
! ! ------------------------- !
! ! Surface current !
! ! ------------------------- !
! ocean currents ! ice velocities
ssnd(jps_ocx1)%clname = 'O_OCurx1' ; ssnd(jps_ivx1)%clname = 'O_IVelx1'
ssnd(jps_ocy1)%clname = 'O_OCury1' ; ssnd(jps_ivy1)%clname = 'O_IVely1'
ssnd(jps_ocz1)%clname = 'O_OCurz1' ; ssnd(jps_ivz1)%clname = 'O_IVelz1'
ssnd(jps_ocxw)%clname = 'O_OCurxw'
ssnd(jps_ocyw)%clname = 'O_OCuryw'
!
ssnd(jps_ocx1:jps_ivz1)%nsgn = -1. ! vectors: change of the sign at the north fold
IF( sn_snd_crt%clvgrd == 'U,V' ) THEN
ssnd(jps_ocx1)%clgrid = 'U' ; ssnd(jps_ocy1)%clgrid = 'V'
ELSE IF( sn_snd_crt%clvgrd /= 'T' ) THEN
CALL ctl_stop( 'sn_snd_crt%clvgrd must be equal to T' )
ENDIF
ssnd(jps_ocx1:jps_ivz1)%laction = .TRUE. ! default: all are send
IF( TRIM( sn_snd_crt%clvref ) == 'spherical' ) ssnd( (/jps_ocz1, jps_ivz1/) )%laction = .FALSE.
IF( TRIM( sn_snd_crt%clvor ) == 'eastward-northward' ) ssnd(jps_ocx1:jps_ivz1)%nsgn = 1.
SELECT CASE( TRIM( sn_snd_crt%cldes ) )
CASE( 'none' ) ; ssnd(jps_ocx1:jps_ivz1)%laction = .FALSE.
CASE( 'oce only' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
CASE( 'weighted oce and ice' ) ! nothing to do
CASE( 'mixed oce-ice' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_crt%cldes' )
END SELECT
ssnd(jps_ocxw:jps_ocyw)%nsgn = -1. ! vectors: change of the sign at the north fold
IF( sn_snd_crtw%clvgrd == 'U,V' ) THEN
ssnd(jps_ocxw)%clgrid = 'U' ; ssnd(jps_ocyw)%clgrid = 'V'
ELSE IF( sn_snd_crtw%clvgrd /= 'T' ) THEN
CALL ctl_stop( 'sn_snd_crtw%clvgrd must be equal to T' )
ENDIF
IF( TRIM( sn_snd_crtw%clvor ) == 'eastward-northward' ) ssnd(jps_ocxw:jps_ocyw)%nsgn = 1.
SELECT CASE( TRIM( sn_snd_crtw%cldes ) )
CASE( 'none' ) ; ssnd(jps_ocxw:jps_ocyw)%laction = .FALSE.
CASE( 'oce only' ) ; ssnd(jps_ocxw:jps_ocyw)%laction = .TRUE.
CASE( 'weighted oce and ice' ) ! nothing to do
CASE( 'mixed oce-ice' ) ; ssnd(jps_ivx1:jps_ivz1)%laction = .FALSE.
CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_crtw%cldes' )
END SELECT
! ! ------------------------- !
! ! CO2 flux !
! ! ------------------------- !
ssnd(jps_co2)%clname = 'O_CO2FLX' ; IF( TRIM(sn_snd_co2%cldes) == 'coupled' ) ssnd(jps_co2 )%laction = .TRUE.
!
#if defined key_medusa
! ! ------------------------- !
! ! MEDUSA output fields !
! ! ------------------------- !
! Surface dimethyl sulphide from Medusa
ssnd(jps_bio_dms)%clname = 'OBioDMS'
IF( TRIM(sn_snd_bio_dms%cldes) == 'medusa' ) ssnd(jps_bio_dms )%laction = .TRUE.
! Surface CO2 flux from Medusa
ssnd(jps_bio_co2)%clname = 'OBioCO2'
IF( TRIM(sn_snd_bio_co2%cldes) == 'medusa' ) ssnd(jps_bio_co2 )%laction = .TRUE.
! Surface chlorophyll from Medusa
ssnd(jps_bio_chloro)%clname = 'OBioChlo'
IF( TRIM(sn_snd_bio_chloro%cldes) == 'medusa' ) ssnd(jps_bio_chloro )%laction = .TRUE.
#endif
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! ! ------------------------- !
! ! Sea surface freezing temp !
! ! ------------------------- !
! needed by Met Office
ssnd(jps_sstfrz)%clname = 'O_SSTFrz' ; IF( TRIM(sn_snd_sstfrz%cldes) == 'coupled' ) ssnd(jps_sstfrz)%laction = .TRUE.
!
! ! ------------------------- !
! ! Ice conductivity !
! ! ------------------------- !
! needed by Met Office
! Note that ultimately we will move to passing an ocean effective conductivity as well so there
! will be some changes to the parts of the code which currently relate only to ice conductivity
ssnd(jps_ttilyr )%clname = 'O_TtiLyr'
SELECT CASE ( TRIM( sn_snd_ttilyr%cldes ) )
CASE ( 'none' )
ssnd(jps_ttilyr)%laction = .FALSE.
CASE ( 'ice only' )
ssnd(jps_ttilyr)%laction = .TRUE.
IF( TRIM( sn_snd_ttilyr%clcat ) == 'yes' ) THEN
ssnd(jps_ttilyr)%nct = nn_cats_cpl
ELSE
IF( nn_cats_cpl > 1 ) THEN
CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_ttilyr%cldes if not exchanging category fields' )
ENDIF
ENDIF
CASE ( 'weighted ice' )
ssnd(jps_ttilyr)%laction = .TRUE.
IF( TRIM( sn_snd_ttilyr%clcat ) == 'yes' ) ssnd(jps_ttilyr)%nct = nn_cats_cpl
CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_ttilyr%cldes;'//sn_snd_ttilyr%cldes )
END SELECT
ssnd(jps_kice )%clname = 'OIceKn'
SELECT CASE ( TRIM( sn_snd_cond%cldes ) )
CASE ( 'none' )
ssnd(jps_kice)%laction = .FALSE.
CASE ( 'ice only' )
ssnd(jps_kice)%laction = .TRUE.
IF( TRIM( sn_snd_cond%clcat ) == 'yes' ) THEN
ssnd(jps_kice)%nct = nn_cats_cpl
ELSE
IF( nn_cats_cpl > 1 ) THEN
CALL ctl_stop( 'sbc_cpl_init: use weighted ice option for sn_snd_cond%cldes if not exchanging category fields' )
ENDIF
ENDIF
CASE ( 'weighted ice' )
ssnd(jps_kice)%laction = .TRUE.
IF( TRIM( sn_snd_cond%clcat ) == 'yes' ) ssnd(jps_kice)%nct = nn_cats_cpl
CASE default ; CALL ctl_stop( 'sbc_cpl_init: wrong definition of sn_snd_cond%cldes;'//sn_snd_cond%cldes )
END SELECT
!
! ! ------------------------- !
! ! Sea surface height !
! ! ------------------------- !
ssnd(jps_wlev)%clname = 'O_Wlevel' ; IF( TRIM(sn_snd_wlev%cldes) == 'coupled' ) ssnd(jps_wlev)%laction = .TRUE.
! ! ------------------------------- !
! ! OCE-SAS coupling - snd by opa !
! ! ------------------------------- !
ssnd(jps_ssh )%clname = 'O_SSHght'
ssnd(jps_soce )%clname = 'O_SSSal'
ssnd(jps_e3t1st)%clname = 'O_E3T1st'
ssnd(jps_fraqsr)%clname = 'O_FraQsr'
!
IF( nn_components == jp_iam_oce ) THEN
ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
ssnd( (/jps_toce, jps_soce, jps_ssh, jps_fraqsr, jps_ocx1, jps_ocy1/) )%laction = .TRUE.
ssnd( jps_e3t1st )%laction = .NOT.ln_linssh
! vector definition: not used but cleaner...
ssnd(jps_ocx1)%clgrid = 'U' ! oce components given at U-point
ssnd(jps_ocy1)%clgrid = 'V' ! and V-point
sn_snd_crt%clvgrd = 'U,V'
sn_snd_crt%clvor = 'local grid'
sn_snd_crt%clvref = 'spherical'
!
IF(lwp) THEN ! control print
WRITE(numout,*)
WRITE(numout,*)' sent fields to SAS component '
WRITE(numout,*)' sea surface temperature (T before, Celsius) '
WRITE(numout,*)' sea surface salinity '
WRITE(numout,*)' surface currents U,V on local grid and spherical coordinates'
WRITE(numout,*)' sea surface height '
WRITE(numout,*)' thickness of first ocean T level '
WRITE(numout,*)' fraction of solar net radiation absorbed in the first ocean level'
WRITE(numout,*)
ENDIF
ENDIF
! ! ------------------------------- !
! ! OCE-SAS coupling - snd by sas !
! ! ------------------------------- !
ssnd(jps_sflx )%clname = 'I_SFLX'
ssnd(jps_fice2 )%clname = 'IIceFrc'
ssnd(jps_qsroce)%clname = 'I_QsrOce'
ssnd(jps_qnsoce)%clname = 'I_QnsOce'
ssnd(jps_oemp )%clname = 'IOEvaMPr'
ssnd(jps_otx1 )%clname = 'I_OTaux1'
ssnd(jps_oty1 )%clname = 'I_OTauy1'
ssnd(jps_rnf )%clname = 'I_Runoff'
ssnd(jps_taum )%clname = 'I_TauMod'
!
IF( nn_components == jp_iam_sas ) THEN
IF( .NOT. ln_cpl ) ssnd(:)%laction = .FALSE. ! force default definition in case of opa <-> sas coupling
ssnd( (/jps_qsroce, jps_qnsoce, jps_oemp, jps_fice2, jps_sflx, jps_otx1, jps_oty1, jps_taum/) )%laction = .TRUE.
!
! Change first letter to couple with atmosphere if already coupled with sea_ice
! this is nedeed as each variable name used in the namcouple must be unique:
! for example O_SSTSST sent by OCE to SAS and therefore S_SSTSST sent by SAS to the Atmosphere
DO jn = 1, jpsnd
IF( ssnd(jn)%clname(1:1) == "O" ) ssnd(jn)%clname = "S"//ssnd(jn)%clname(2:LEN(ssnd(jn)%clname))
END DO
!
IF(lwp) THEN ! control print
WRITE(numout,*)
IF( .NOT. ln_cpl ) THEN
WRITE(numout,*)' sent fields to OCE component '
ELSE
WRITE(numout,*)' Additional sent fields to OCE component : '
ENDIF
WRITE(numout,*)' ice cover '
WRITE(numout,*)' oce only EMP '
WRITE(numout,*)' salt flux '
WRITE(numout,*)' mixed oce-ice solar flux '
WRITE(numout,*)' mixed oce-ice non solar flux '
WRITE(numout,*)' wind stress U,V components'
WRITE(numout,*)' wind stress module'
ENDIF
ENDIF
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! Initialise 1D river outflow scheme
nn_cpl_river = 1
IF ( TRIM( sn_rcv_rnf%cldes ) == 'coupled1d' ) CALL cpl_rnf_1d_init ! Coupled runoff using 1D array
! =================================================== !
! Allocate all parts of frcv used for received fields !
! =================================================== !
DO jn = 1, jprcv
IF ( srcv(jn)%laction ) THEN
SELECT CASE( srcv(jn)%dimensions )
!
CASE( 0 ) ! Scalar field
ALLOCATE( frcv(jn)%z3(1,1,1) )
CASE( 1 ) ! 1D field
ALLOCATE( frcv(jn)%z3(nn_cpl_river,1,1) )
CASE DEFAULT ! 2D (or pseudo 3D) field.
ALLOCATE( frcv(jn)%z3(jpi,jpj,srcv(jn)%nct) )
END SELECT
END IF
END DO
! Allocate taum part of frcv which is used even when not received as coupling field
IF ( .NOT. srcv(jpr_taum)%laction ) ALLOCATE( frcv(jpr_taum)%z3(jpi,jpj,srcv(jpr_taum)%nct) )
! Allocate w10m part of frcv which is used even when not received as coupling field
IF ( .NOT. srcv(jpr_w10m)%laction ) ALLOCATE( frcv(jpr_w10m)%z3(jpi,jpj,srcv(jpr_w10m)%nct) )
! Allocate jpr_otx1 part of frcv which is used even when not received as coupling field
IF ( .NOT. srcv(jpr_otx1)%laction ) ALLOCATE( frcv(jpr_otx1)%z3(jpi,jpj,srcv(jpr_otx1)%nct) )
IF ( .NOT. srcv(jpr_oty1)%laction ) ALLOCATE( frcv(jpr_oty1)%z3(jpi,jpj,srcv(jpr_oty1)%nct) )
! Allocate itx1 and ity1 as they are used in sbc_cpl_ice_tau even if srcv(jpr_itx1)%laction = .FALSE.
IF( k_ice /= 0 ) THEN
IF ( .NOT. srcv(jpr_itx1)%laction ) ALLOCATE( frcv(jpr_itx1)%z3(jpi,jpj,srcv(jpr_itx1)%nct) )
IF ( .NOT. srcv(jpr_ity1)%laction ) ALLOCATE( frcv(jpr_ity1)%z3(jpi,jpj,srcv(jpr_ity1)%nct) )
END IF
!
! ================================ !
! initialisation of the coupler !
! ================================ !
! There's no point initialising the coupler if we've accumulated any errors in
! coupling field definitions or settings.
IF (nstop > 0) CALL ctl_stop( 'STOP', 'sbc_cpl_init: Errors encountered in coupled field definitions' )
CALL cpl_define(jprcv, jpsnd, nn_cplmodel)
IF(ln_usecplmask) THEN
xcplmask(:,:,:) = 0.
CALL iom_open( 'cplmask', inum )
CALL iom_get( inum, jpdom_unknown, 'cplmask', xcplmask(1:jpi,1:jpj,1:nn_cplmodel), &
& kstart = (/ mig(1),mjg(1),1 /), kcount = (/ jpi,jpj,nn_cplmodel /) )
CALL iom_close( inum )
ELSE
xcplmask(:,:,:) = 1.
ENDIF
xcplmask(:,:,0) = 1. - SUM( xcplmask(:,:,1:nn_cplmodel), dim = 3 )
!
IF( nn_coupled_iceshelf_fluxes .gt. 0 ) THEN
! Crude masks to separate the Antarctic and Greenland icesheets. Obviously something
! more complicated could be done if required.
greenland_icesheet_mask = 0.0
WHERE( gphit >= 0.0 ) greenland_icesheet_mask = 1.0
antarctica_icesheet_mask = 0.0
WHERE( gphit < 0.0 ) antarctica_icesheet_mask = 1.0
IF( .not. ln_rstart ) THEN
greenland_icesheet_mass = 0.0
greenland_icesheet_mass_rate_of_change = 0.0
greenland_icesheet_timelapsed = 0.0
antarctica_icesheet_mass = 0.0
antarctica_icesheet_mass_rate_of_change = 0.0
antarctica_icesheet_timelapsed = 0.0
ENDIF
ENDIF
!
IF (ln_timing) CALL timing_stop('sbc_cpl_init')
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!
END SUBROUTINE sbc_cpl_init
SUBROUTINE sbc_cpl_rcv( kt, k_fsbc, k_ice, Kbb, Kmm )
!!----------------------------------------------------------------------
!! *** ROUTINE sbc_cpl_rcv ***
!!
!! ** Purpose : provide the stress over the ocean and, if no sea-ice,
!! provide the ocean heat and freshwater fluxes.
!!
!! ** Method : - Receive all the atmospheric fields (stored in frcv array). called at each time step.
!! OASIS controls if there is something do receive or not. nrcvinfo contains the info
!! to know if the field was really received or not
!!
!! --> If ocean stress was really received:
!!
!! - transform the received ocean stress vector from the received
!! referential and grid into an atmosphere-ocean stress in
!! the (i,j) ocean referencial and at the ocean velocity point.
!! The received stress are :
!! - defined by 3 components (if cartesian coordinate)
!! or by 2 components (if spherical)
!! - oriented along geographical coordinate (if eastward-northward)
!! or along the local grid coordinate (if local grid)
!! - given at U- and V-point, resp. if received on 2 grids
!! or at T-point if received on 1 grid
!! Therefore and if necessary, they are successively
!! processed in order to obtain them
!! first as 2 components on the sphere
!! second as 2 components oriented along the local grid
!! third as 2 components on the U,V grid
!!
!! -->
!!
!! - In 'ocean only' case, non solar and solar ocean heat fluxes
!! and total ocean freshwater fluxes
!!
!! ** Method : receive all fields from the atmosphere and transform
!! them into ocean surface boundary condition fields
!!
!! ** Action : update utau, vtau ocean stress at U,V grid
!! taum wind stress module at T-point
!! wndm wind speed module at T-point over free ocean or leads in presence of sea-ice
!! qns non solar heat fluxes including emp heat content (ocean only case)
!! and the latent heat flux of solid precip. melting
!! qsr solar ocean heat fluxes (ocean only case)
!! emp upward mass flux [evap. - precip. (- runoffs) (- calving)] (ocean only case)
!!----------------------------------------------------------------------
USE zdf_oce, ONLY : ln_zdfswm
!
INTEGER, INTENT(in) :: kt ! ocean model time step index
INTEGER, INTENT(in) :: k_fsbc ! frequency of sbc (-> ice model) computation
INTEGER, INTENT(in) :: k_ice ! ice management in the sbc (=0/1/2/3)
INTEGER, INTENT(in) :: Kbb, Kmm ! ocean model time level indices
!!
LOGICAL :: llnewtx, llnewtau ! update wind stress components and module??
INTEGER :: ji, jj, jn ! dummy loop indices
INTEGER :: isec ! number of seconds since nit000 (assuming rdt did not change since nit000)
INTEGER :: ikchoix
REAL(wp), DIMENSION(jpi,jpj) :: ztx2, zty2
REAL(wp) :: zcumulneg, zcumulpos ! temporary scalars
REAL(wp) :: zcoef ! temporary scalar
LOGICAL :: ll_wrtstp ! write diagnostics?
REAL(wp) :: zrhoa = 1.22 ! Air density kg/m3
REAL(wp) :: zcdrag = 1.5e-3 ! drag coefficient
REAL(wp) :: zgreenland_icesheet_mass_in, zantarctica_icesheet_mass_in
REAL(wp) :: zgreenland_icesheet_mass_b, zantarctica_icesheet_mass_b
REAL(wp) :: zmask_sum, zepsilon
Guillaume Samson
committed
REAL(wp) :: r1_grau ! = 1.e0 / (grav * rho0)
REAL(wp), DIMENSION(jpi,jpj) :: ztx, zty, zmsk, zemp, zqns, zqsr, zcloud_fra
!!----------------------------------------------------------------------
!
!
IF (ln_timing) CALL timing_start('sbc_cpl_rcv')
!
ll_wrtstp = ( MOD( kt, sn_cfctl%ptimincr ) == 0 ) .OR. ( kt == nitend )
!
IF( kt == nit000 ) THEN
! cannot be done in the init phase when we use agrif as cpl_freq requires that oasis_enddef is done
ncpl_qsr_freq = cpl_freq( 'O_QsrOce' ) + cpl_freq( 'O_QsrMix' ) + cpl_freq( 'I_QsrOce' ) + cpl_freq( 'I_QsrMix' )
IF( ln_dm2dc .AND. ncpl_qsr_freq /= 86400 ) &
& CALL ctl_stop( 'sbc_cpl_rcv: diurnal cycle reconstruction (ln_dm2dc) needs daily couping for solar radiation' )
IF ( ln_wave .AND. nn_components == 0 ) THEN
ncpl_qsr_freq = 1;
WRITE(numout,*) 'ncpl_qsr_freq is set to 1 when coupling NEMO with wave (without SAS) '
ENDIF
ENDIF
!
IF( ln_mixcpl ) zmsk(:,:) = 1. - xcplmask(:,:,0)
!
! ! ======================================================= !
! ! Receive all the atmos. fields (including ice information)
! ! ======================================================= !
isec = ( kt - nit000 ) * NINT( rn_Dt ) ! date of exchanges
DO jn = 1, jprcv ! received fields sent by the atmosphere
IF( srcv(jn)%laction ) THEN
IF ( srcv(jn)%dimensions <= 1 ) THEN
CALL cpl_rcv_1d( jn, isec, frcv(jn)%z3, SIZE(frcv(jn)%z3), nrcvinfo(jn) )
ELSE
CALL cpl_rcv( jn, isec, frcv(jn)%z3, xcplmask(:,:,1:nn_cplmodel), nrcvinfo(jn) )
END IF
END IF
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END DO
! ! ========================= !
IF( srcv(jpr_otx1)%laction ) THEN ! ocean stress components !
! ! ========================= !
! define frcv(jpr_otx1)%z3(:,:,1) and frcv(jpr_oty1)%z3(:,:,1): stress at U/V point along model grid
! => need to be done only when we receive the field
IF( nrcvinfo(jpr_otx1) == OASIS_Rcv ) THEN
!
IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
! ! (cartesian to spherical -> 3 to 2 components)
!
CALL geo2oce( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), frcv(jpr_otz1)%z3(:,:,1), &
& srcv(jpr_otx1)%clgrid, ztx, zty )
frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
!
IF( srcv(jpr_otx2)%laction ) THEN
CALL geo2oce( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), frcv(jpr_otz2)%z3(:,:,1), &
& srcv(jpr_otx2)%clgrid, ztx, zty )
frcv(jpr_otx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
frcv(jpr_oty2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
ENDIF
!
ENDIF
!
IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
! ! (geographical to local grid -> rotate the components)
IF( srcv(jpr_otx1)%clgrid == 'U' .AND. (.NOT. srcv(jpr_otx2)%laction) ) THEN
! Temporary code for HadGEM3 - will be removed eventually.
! Only applies when we have only taux on U grid and tauy on V grid
!RSRH these MUST be initialised because the halos are not explicitly set
! but they're passed to repcmo and used directly in calculations, so if
! they point at junk in memory then bad things will happen!
! (You can prove this by running with preset NaNs).
ztx(:,:)=0.0
zty(:,:)=0.0
DO_2D( 0, 0, 0, 0 )
ztx(ji,jj)=0.25*vmask(ji,jj,1) &
*(frcv(jpr_otx1)%z3(ji,jj,1)+frcv(jpr_otx1)%z3(ji-1,jj,1) &
+frcv(jpr_otx1)%z3(ji,jj+1,1)+frcv(jpr_otx1)%z3(ji-1,jj+1,1))
zty(ji,jj)=0.25*umask(ji,jj,1) &
*(frcv(jpr_oty1)%z3(ji,jj,1)+frcv(jpr_oty1)%z3(ji+1,jj,1) &
+frcv(jpr_oty1)%z3(ji,jj-1,1)+frcv(jpr_oty1)%z3(ji+1,jj-1,1))
END_2D
ikchoix = 1
CALL repcmo (frcv(jpr_otx1)%z3(:,:,1),zty,ztx,frcv(jpr_oty1)%z3(:,:,1),ztx2,zty2,ikchoix)
CALL lbc_lnk ('jpr_otx1', ztx2,'U', -1. )
CALL lbc_lnk ('jpr_oty1', zty2,'V', -1. )
frcv(jpr_otx1)%z3(:,:,1)=ztx2(:,:)
frcv(jpr_oty1)%z3(:,:,1)=zty2(:,:)
CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->i', ztx )
frcv(jpr_otx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
IF( srcv(jpr_otx2)%laction ) THEN
CALL rot_rep( frcv(jpr_otx2)%z3(:,:,1), frcv(jpr_oty2)%z3(:,:,1), srcv(jpr_otx2)%clgrid, 'en->j', zty )
ELSE
CALL rot_rep( frcv(jpr_otx1)%z3(:,:,1), frcv(jpr_oty1)%z3(:,:,1), srcv(jpr_otx1)%clgrid, 'en->j', zty )
ENDIF
frcv(jpr_oty1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 2nd grid
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ENDIF
ENDIF
!
IF( srcv(jpr_otx1)%clgrid == 'T' ) THEN
DO_2D( 0, 0, 0, 0 ) ! T ==> (U,V)
frcv(jpr_otx1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_otx1)%z3(ji+1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1) )
frcv(jpr_oty1)%z3(ji,jj,1) = 0.5 * ( frcv(jpr_oty1)%z3(ji ,jj+1,1) + frcv(jpr_oty1)%z3(ji,jj,1) )
END_2D
CALL lbc_lnk( 'sbccpl', frcv(jpr_otx1)%z3(:,:,1), 'U', -1.0_wp, frcv(jpr_oty1)%z3(:,:,1), 'V', -1.0_wp )
ENDIF
llnewtx = .TRUE.
ELSE
llnewtx = .FALSE.
ENDIF
! ! ========================= !
ELSE ! No dynamical coupling !
! ! ========================= !
frcv(jpr_otx1)%z3(:,:,1) = 0.e0 ! here simply set to zero
frcv(jpr_oty1)%z3(:,:,1) = 0.e0 ! an external read in a file can be added instead
llnewtx = .TRUE.
!
ENDIF
! ! ========================= !
! ! wind stress module ! (taum)
! ! ========================= !
IF( .NOT. srcv(jpr_taum)%laction ) THEN ! compute wind stress module from its components if not received
! => need to be done only when otx1 was changed
IF( llnewtx ) THEN
DO_2D( 0, 0, 0, 0 )
zzx = frcv(jpr_otx1)%z3(ji-1,jj ,1) + frcv(jpr_otx1)%z3(ji,jj,1)
zzy = frcv(jpr_oty1)%z3(ji ,jj-1,1) + frcv(jpr_oty1)%z3(ji,jj,1)
frcv(jpr_taum)%z3(ji,jj,1) = 0.5 * SQRT( zzx * zzx + zzy * zzy )
END_2D
CALL lbc_lnk( 'sbccpl', frcv(jpr_taum)%z3(:,:,1), 'T', 1.0_wp )
llnewtau = .TRUE.
ELSE
llnewtau = .FALSE.
ENDIF
ELSE
llnewtau = nrcvinfo(jpr_taum) == OASIS_Rcv
! Stress module can be negative when received (interpolation problem)
IF( llnewtau ) THEN
frcv(jpr_taum)%z3(:,:,1) = MAX( 0._wp, frcv(jpr_taum)%z3(:,:,1) )
ENDIF
ENDIF
!
! ! ========================= !
! ! 10 m wind speed ! (wndm)
! ! ========================= !
IF( .NOT. srcv(jpr_w10m)%laction ) THEN ! compute wind spreed from wind stress module if not received
! => need to be done only when taumod was changed
IF( llnewtau ) THEN
zcoef = 1. / ( zrhoa * zcdrag )
DO_2D( nn_hls, nn_hls, nn_hls, nn_hls )
frcv(jpr_w10m)%z3(ji,jj,1) = SQRT( frcv(jpr_taum)%z3(ji,jj,1) * zcoef )
END_2D
ENDIF
ENDIF
!!$ ! ! ========================= !
!!$ SELECT CASE( TRIM( sn_rcv_clouds%cldes ) ) ! cloud fraction !
!!$ ! ! ========================= !
!!$ cloud_fra(:,:) = frcv(jpr_clfra)*z3(:,:,1)
!!$ END SELECT
!!$
zcloud_fra(:,:) = pp_cldf ! should be real cloud fraction instead (as in the bulk) but needs to be read from atm.
IF( ln_mixcpl ) THEN
cloud_fra(:,:) = cloud_fra(:,:) * xcplmask(:,:,0) + zcloud_fra(:,:)* zmsk(:,:)
ELSE
cloud_fra(:,:) = zcloud_fra(:,:)
ENDIF
! ! ========================= !
! u(v)tau and taum will be modified by ice model
! -> need to be reset before each call of the ice/fsbc
IF( MOD( kt-1, k_fsbc ) == 0 ) THEN
!
IF( ln_mixcpl ) THEN
utau(:,:) = utau(:,:) * xcplmask(:,:,0) + frcv(jpr_otx1)%z3(:,:,1) * zmsk(:,:)
vtau(:,:) = vtau(:,:) * xcplmask(:,:,0) + frcv(jpr_oty1)%z3(:,:,1) * zmsk(:,:)
taum(:,:) = taum(:,:) * xcplmask(:,:,0) + frcv(jpr_taum)%z3(:,:,1) * zmsk(:,:)
wndm(:,:) = wndm(:,:) * xcplmask(:,:,0) + frcv(jpr_w10m)%z3(:,:,1) * zmsk(:,:)
ELSE
utau(:,:) = frcv(jpr_otx1)%z3(:,:,1)
vtau(:,:) = frcv(jpr_oty1)%z3(:,:,1)
taum(:,:) = frcv(jpr_taum)%z3(:,:,1)
wndm(:,:) = frcv(jpr_w10m)%z3(:,:,1)
ENDIF
CALL iom_put( "taum_oce", taum ) ! output wind stress module
!
ENDIF
#if defined key_medusa
IF (ln_medusa) THEN
IF( srcv(jpr_atm_pco2)%laction) PCO2a_in_cpl(:,:) = frcv(jpr_atm_pco2)%z3(:,:,1)
IF( srcv(jpr_atm_dust)%laction) Dust_in_cpl(:,:) = frcv(jpr_atm_dust)%z3(:,:,1)
ENDIF
#endif
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! ! ================== !
! ! atmosph. CO2 (ppm) !
! ! ================== !
IF( srcv(jpr_co2)%laction ) atm_co2(:,:) = frcv(jpr_co2)%z3(:,:,1)
!
! ! ========================= !
! ! Mean Sea Level Pressure ! (taum)
! ! ========================= !
IF( srcv(jpr_mslp)%laction ) THEN ! UKMO SHELF effect of atmospheric pressure on SSH
IF( kt /= nit000 ) ssh_ibb(:,:) = ssh_ib(:,:) !* Swap of ssh_ib fields
r1_grau = 1.e0 / (grav * rho0) !* constant for optimization
ssh_ib(:,:) = - ( frcv(jpr_mslp)%z3(:,:,1) - rpref ) * r1_grau ! equivalent ssh (inverse barometer)
apr (:,:) = frcv(jpr_mslp)%z3(:,:,1) !atmospheric pressure
IF( kt == nit000 ) ssh_ibb(:,:) = ssh_ib(:,:) ! correct this later (read from restart if possible)
ENDIF
!
IF( ln_sdw ) THEN ! Stokes Drift correction activated
! ! ========================= !
! ! Stokes drift u !
! ! ========================= !
IF( srcv(jpr_sdrftx)%laction ) ut0sd(:,:) = frcv(jpr_sdrftx)%z3(:,:,1)
!
! ! ========================= !
! ! Stokes drift v !
! ! ========================= !
IF( srcv(jpr_sdrfty)%laction ) vt0sd(:,:) = frcv(jpr_sdrfty)%z3(:,:,1)
!
! ! ========================= !
! ! Wave mean period !
! ! ========================= !
IF( srcv(jpr_wper)%laction ) wmp(:,:) = frcv(jpr_wper)%z3(:,:,1)
!
! ! ========================= !
! ! Significant wave height !
! ! ========================= !
IF( srcv(jpr_hsig)%laction ) hsw(:,:) = frcv(jpr_hsig)%z3(:,:,1)
!
! ! ========================= !
! ! Vertical mixing Qiao !
! ! ========================= !
IF( srcv(jpr_wnum)%laction .AND. ln_zdfswm ) wnum(:,:) = frcv(jpr_wnum)%z3(:,:,1)
! Calculate the 3D Stokes drift both in coupled and not fully uncoupled mode
IF( srcv(jpr_sdrftx)%laction .OR. srcv(jpr_sdrfty)%laction .OR. &
srcv(jpr_wper)%laction .OR. srcv(jpr_hsig)%laction ) THEN
CALL sbc_stokes( Kmm )
ENDIF
ENDIF
! ! ========================= !
! ! Stress adsorbed by waves !
! ! ========================= !
IF( srcv(jpr_wstrf)%laction .AND. ln_tauoc ) tauoc_wave(:,:) = frcv(jpr_wstrf)%z3(:,:,1)
!
! ! ========================= !
! ! Wave drag coefficient !
! ! ========================= !
IF( srcv(jpr_wdrag)%laction .AND. ln_cdgw ) cdn_wave(:,:) = frcv(jpr_wdrag)%z3(:,:,1)
!
! ! ========================= !
! ! Chranock coefficient !
! ! ========================= !
IF( srcv(jpr_charn)%laction .AND. ln_charn ) charn(:,:) = frcv(jpr_charn)%z3(:,:,1)
!
! ! ========================= !
! ! net wave-supported stress !
! ! ========================= !
IF( srcv(jpr_tawx)%laction .AND. ln_taw ) tawx(:,:) = frcv(jpr_tawx)%z3(:,:,1)
IF( srcv(jpr_tawy)%laction .AND. ln_taw ) tawy(:,:) = frcv(jpr_tawy)%z3(:,:,1)
!
! ! ========================= !
! !wave to ocean momentum flux!
! ! ========================= !
IF( srcv(jpr_twox)%laction .AND. ln_taw ) twox(:,:) = frcv(jpr_twox)%z3(:,:,1)
IF( srcv(jpr_twoy)%laction .AND. ln_taw ) twoy(:,:) = frcv(jpr_twoy)%z3(:,:,1)
!
! ! ========================= !
! ! wave TKE flux at sfc !
! ! ========================= !
IF( srcv(jpr_phioc)%laction .AND. ln_phioc ) phioc(:,:) = frcv(jpr_phioc)%z3(:,:,1)
!
! ! ========================= !
! ! Bernoulli head !
! ! ========================= !
IF( srcv(jpr_bhd)%laction .AND. ln_bern_srfc ) bhd_wave(:,:) = frcv(jpr_bhd)%z3(:,:,1)
!
! ! ========================= !
! ! Stokes transport u dir !
! ! ========================= !
IF( srcv(jpr_tusd)%laction .AND. ln_breivikFV_2016 ) tusd(:,:) = frcv(jpr_tusd)%z3(:,:,1)
!
! ! ========================= !
! ! Stokes transport v dir !
! ! ========================= !
IF( srcv(jpr_tvsd)%laction .AND. ln_breivikFV_2016 ) tvsd(:,:) = frcv(jpr_tvsd)%z3(:,:,1)
!
! Fields received by SAS when OASIS coupling
! (arrays no more filled at sbcssm stage)
! ! ================== !
! ! SSS !
! ! ================== !
IF( srcv(jpr_soce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
sss_m(:,:) = frcv(jpr_soce)%z3(:,:,1)
CALL iom_put( 'sss_m', sss_m )
ENDIF
!
! ! ================== !
! ! SST !
! ! ================== !
IF( srcv(jpr_toce)%laction ) THEN ! received by sas in case of opa <-> sas coupling
sst_m(:,:) = frcv(jpr_toce)%z3(:,:,1)
IF( srcv(jpr_soce)%laction .AND. l_useCT ) THEN ! make sure that sst_m is the potential temperature
sst_m(:,:) = eos_pt_from_ct( sst_m(:,:), sss_m(:,:) )
ENDIF
ENDIF
! ! ================== !
! ! SSH !
! ! ================== !
IF( srcv(jpr_ssh )%laction ) THEN ! received by sas in case of opa <-> sas coupling
ssh_m(:,:) = frcv(jpr_ssh )%z3(:,:,1)
CALL iom_put( 'ssh_m', ssh_m )
ENDIF
! ! ================== !
! ! surface currents !
! ! ================== !
IF( srcv(jpr_ocx1)%laction ) THEN ! received by sas in case of opa <-> sas coupling
ssu_m(:,:) = frcv(jpr_ocx1)%z3(:,:,1)
uu(:,:,1,Kbb) = ssu_m(:,:) ! will be used in icestp in the call of ice_forcing_tau
uu(:,:,1,Kmm) = ssu_m(:,:) ! will be used in sbc_cpl_snd if atmosphere coupling
CALL iom_put( 'ssu_m', ssu_m )
ENDIF
IF( srcv(jpr_ocy1)%laction ) THEN
ssv_m(:,:) = frcv(jpr_ocy1)%z3(:,:,1)
vv(:,:,1,Kbb) = ssv_m(:,:) ! will be used in icestp in the call of ice_forcing_tau
vv(:,:,1,Kmm) = ssv_m(:,:) ! will be used in sbc_cpl_snd if atmosphere coupling
CALL iom_put( 'ssv_m', ssv_m )
ENDIF
! ! ======================== !
! ! first T level thickness !
! ! ======================== !
IF( srcv(jpr_e3t1st )%laction ) THEN ! received by sas in case of opa <-> sas coupling
e3t_m(:,:) = frcv(jpr_e3t1st )%z3(:,:,1)
CALL iom_put( 'e3t_m', e3t_m(:,:) )
ENDIF
! ! ================================ !
! ! fraction of solar net radiation !
! ! ================================ !
IF( srcv(jpr_fraqsr)%laction ) THEN ! received by sas in case of opa <-> sas coupling
frq_m(:,:) = frcv(jpr_fraqsr)%z3(:,:,1)
CALL iom_put( 'frq_m', frq_m )
ENDIF
! ! ========================= !
IF( k_ice <= 1 .AND. MOD( kt-1, k_fsbc ) == 0 ) THEN ! heat & freshwater fluxes ! (Ocean only case)
! ! ========================= !
!
! ! total freshwater fluxes over the ocean (emp)
IF( srcv(jpr_oemp)%laction .OR. srcv(jpr_rain)%laction ) THEN
SELECT CASE( TRIM( sn_rcv_emp%cldes ) ) ! evaporation - precipitation
CASE( 'conservative' )
zemp(:,:) = frcv(jpr_tevp)%z3(:,:,1) - ( frcv(jpr_rain)%z3(:,:,1) + frcv(jpr_snow)%z3(:,:,1) )
CASE( 'oce only', 'oce and ice' )
zemp(:,:) = frcv(jpr_oemp)%z3(:,:,1)
CASE default
CALL ctl_stop( 'sbc_cpl_rcv: wrong definition of sn_rcv_emp%cldes' )
END SELECT
ELSE
zemp(:,:) = 0._wp
ENDIF
!
! ! runoffs and calving (added in emp)
IF( srcv(jpr_rnf)%laction ) rnf(:,:) = frcv(jpr_rnf)%z3(:,:,1)
IF( srcv(jpr_cal)%laction ) zemp(:,:) = zemp(:,:) - frcv(jpr_cal)%z3(:,:,1)
IF( srcv(jpr_icb)%laction ) THEN
fwficb(:,:) = frcv(jpr_icb)%z3(:,:,1)
rnf(:,:) = rnf(:,:) + fwficb(:,:) ! iceberg added to runfofs
ENDIF
!
! ice shelf fwf
IF( srcv(jpr_isf)%laction ) THEN
fwfisf_oasis(:,:) = frcv(jpr_isf)%z3(:,:,1) ! fresh water flux from the isf to the ocean ( > 0 = melting )
END IF
IF( ln_mixcpl ) THEN ; emp(:,:) = emp(:,:) * xcplmask(:,:,0) + zemp(:,:) * zmsk(:,:)
ELSE ; emp(:,:) = zemp(:,:)
ENDIF
!
! ! non solar heat flux over the ocean (qns)
IF( srcv(jpr_qnsoce)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsoce)%z3(:,:,1)
ELSE IF( srcv(jpr_qnsmix)%laction ) THEN ; zqns(:,:) = frcv(jpr_qnsmix)%z3(:,:,1)
ELSE ; zqns(:,:) = 0._wp
ENDIF
! update qns over the free ocean with:
IF( nn_components /= jp_iam_oce ) THEN
zqns(:,:) = zqns(:,:) - zemp(:,:) * sst_m(:,:) * rcp ! remove heat content due to mass flux (assumed to be at SST)
IF( srcv(jpr_snow )%laction ) THEN
zqns(:,:) = zqns(:,:) - frcv(jpr_snow)%z3(:,:,1) * rLfus ! energy for melting solid precipitation over the free ocean
ENDIF
ENDIF
!
IF( srcv(jpr_icb)%laction ) zqns(:,:) = zqns(:,:) - frcv(jpr_icb)%z3(:,:,1) * rLfus ! remove heat content associated to iceberg melting
!
IF( ln_mixcpl ) THEN
qns(:,:) = qns(:,:) * xcplmask(:,:,0) + zqns(:,:) * zmsk(:,:)
ELSE
qns(:,:) = zqns(:,:)
ENDIF
! ! solar flux over the ocean (qsr)
IF ( srcv(jpr_qsroce)%laction ) THEN ; zqsr(:,:) = frcv(jpr_qsroce)%z3(:,:,1)
ELSE IF( srcv(jpr_qsrmix)%laction ) then ; zqsr(:,:) = frcv(jpr_qsrmix)%z3(:,:,1)
ELSE ; zqsr(:,:) = 0._wp
ENDIF
IF( ln_dm2dc .AND. ln_cpl ) zqsr(:,:) = sbc_dcy( zqsr ) ! modify qsr to include the diurnal cycle
IF( ln_mixcpl ) THEN ; qsr(:,:) = qsr(:,:) * xcplmask(:,:,0) + zqsr(:,:) * zmsk(:,:)
ELSE ; qsr(:,:) = zqsr(:,:)
ENDIF
!
! salt flux over the ocean (received by opa in case of opa <-> sas coupling)
IF( srcv(jpr_sflx )%laction ) sfx(:,:) = frcv(jpr_sflx )%z3(:,:,1)
! Ice cover (received by opa in case of opa <-> sas coupling)
IF( srcv(jpr_fice )%laction ) fr_i(:,:) = frcv(jpr_fice )%z3(:,:,1)
!
ENDIF
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zepsilon = rn_iceshelf_fluxes_tolerance
IF( srcv(jpr_grnm)%laction .AND. nn_coupled_iceshelf_fluxes == 1 ) THEN
! This is a zero dimensional, single value field.
zgreenland_icesheet_mass_in = frcv(jpr_grnm)%z3(1,1,1)
greenland_icesheet_timelapsed = greenland_icesheet_timelapsed + rdt
IF( ln_iceshelf_init_atmos .AND. kt == 1 ) THEN
! On the first timestep (of an NRUN) force the ocean to ignore the icesheet masses in the ocean restart
! and take them from the atmosphere to avoid problems with using inconsistent ocean and atmosphere restarts.
zgreenland_icesheet_mass_b = zgreenland_icesheet_mass_in
greenland_icesheet_mass = zgreenland_icesheet_mass_in
ENDIF
IF( ABS( zgreenland_icesheet_mass_in - greenland_icesheet_mass ) > zepsilon ) THEN
zgreenland_icesheet_mass_b = greenland_icesheet_mass
! Only update the mass if it has increased.
IF ( (zgreenland_icesheet_mass_in - greenland_icesheet_mass) > 0.0 ) THEN
greenland_icesheet_mass = zgreenland_icesheet_mass_in
ENDIF
IF( zgreenland_icesheet_mass_b /= 0.0 ) &
& greenland_icesheet_mass_rate_of_change = ( greenland_icesheet_mass - zgreenland_icesheet_mass_b ) / greenland_icesheet_timelapsed
greenland_icesheet_timelapsed = 0.0_wp
ENDIF
IF(lwp .AND. ll_wrtstp) THEN
WRITE(numout,*) 'Greenland icesheet mass (kg) read in is ', zgreenland_icesheet_mass_in
WRITE(numout,*) 'Greenland icesheet mass (kg) used is ', greenland_icesheet_mass
WRITE(numout,*) 'Greenland icesheet mass rate of change (kg/s) is ', greenland_icesheet_mass_rate_of_change
WRITE(numout,*) 'Greenland icesheet seconds lapsed since last change is ', greenland_icesheet_timelapsed
ENDIF
ELSE IF ( nn_coupled_iceshelf_fluxes == 2 ) THEN
greenland_icesheet_mass_rate_of_change = rn_greenland_total_fw_flux
ENDIF
! ! land ice masses : Antarctica
IF( srcv(jpr_antm)%laction .AND. nn_coupled_iceshelf_fluxes == 1 ) THEN
! This is a zero dimensional, single value field.
zantarctica_icesheet_mass_in = frcv(jpr_antm)%z3(1,1,1)
antarctica_icesheet_timelapsed = antarctica_icesheet_timelapsed + rdt
IF( ln_iceshelf_init_atmos .AND. kt == 1 ) THEN
! On the first timestep (of an NRUN) force the ocean to ignore the icesheet masses in the ocean restart
! and take them from the atmosphere to avoid problems with using inconsistent ocean and atmosphere restarts.
zantarctica_icesheet_mass_b = zantarctica_icesheet_mass_in
antarctica_icesheet_mass = zantarctica_icesheet_mass_in
ENDIF
IF( ABS( zantarctica_icesheet_mass_in - antarctica_icesheet_mass ) > zepsilon ) THEN
zantarctica_icesheet_mass_b = antarctica_icesheet_mass
! Only update the mass if it has increased.
IF ( (zantarctica_icesheet_mass_in - antarctica_icesheet_mass) > 0.0 ) THEN
antarctica_icesheet_mass = zantarctica_icesheet_mass_in
END IF
IF( zantarctica_icesheet_mass_b /= 0.0 ) &
& antarctica_icesheet_mass_rate_of_change = ( antarctica_icesheet_mass - zantarctica_icesheet_mass_b ) / antarctica_icesheet_timelapsed
antarctica_icesheet_timelapsed = 0.0_wp
ENDIF
IF(lwp .AND. ll_wrtstp) THEN
WRITE(numout,*) 'Antarctica icesheet mass (kg) read in is ', zantarctica_icesheet_mass_in
WRITE(numout,*) 'Antarctica icesheet mass (kg) used is ', antarctica_icesheet_mass
WRITE(numout,*) 'Antarctica icesheet mass rate of change (kg/s) is ', antarctica_icesheet_mass_rate_of_change
WRITE(numout,*) 'Antarctica icesheet seconds lapsed since last change is ', antarctica_icesheet_timelapsed
ENDIF
ELSE IF ( nn_coupled_iceshelf_fluxes == 2 ) THEN
antarctica_icesheet_mass_rate_of_change = rn_antarctica_total_fw_flux
ENDIF
IF (ln_timing) CALL timing_stop('sbc_cpl_rcv')
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END SUBROUTINE sbc_cpl_rcv
SUBROUTINE sbc_cpl_ice_tau( p_taui, p_tauj )
!!----------------------------------------------------------------------
!! *** ROUTINE sbc_cpl_ice_tau ***
!!
!! ** Purpose : provide the stress over sea-ice in coupled mode
!!
!! ** Method : transform the received stress from the atmosphere into
!! an atmosphere-ice stress in the (i,j) ocean referencial
!! and at the velocity point of the sea-ice model:
!! 'C'-grid : i- (j-) components given at U- (V-) point
!!
!! The received stress are :
!! - defined by 3 components (if cartesian coordinate)
!! or by 2 components (if spherical)
!! - oriented along geographical coordinate (if eastward-northward)
!! or along the local grid coordinate (if local grid)
!! - given at U- and V-point, resp. if received on 2 grids
!! or at a same point (T or I) if received on 1 grid
!! Therefore and if necessary, they are successively
!! processed in order to obtain them
!! first as 2 components on the sphere
!! second as 2 components oriented along the local grid
!! third as 2 components on the ice grid point
!!
!! Except in 'oce and ice' case, only one vector stress field
!! is received. It has already been processed in sbc_cpl_rcv
!! so that it is now defined as (i,j) components given at U-
!! and V-points, respectively.
!!
!! ** Action : return ptau_i, ptau_j, the stress over the ice
!!----------------------------------------------------------------------
REAL(wp), INTENT(inout), DIMENSION(:,:) :: p_taui ! i- & j-components of atmos-ice stress [N/m2]
REAL(wp), INTENT(inout), DIMENSION(:,:) :: p_tauj ! at I-point (B-grid) or U & V-point (C-grid)
!!
INTEGER :: ji, jj ! dummy loop indices
INTEGER :: itx ! index of taux over ice
REAL(wp) :: zztmp1, zztmp2
REAL(wp), DIMENSION(jpi,jpj) :: ztx, zty
!!----------------------------------------------------------------------
!
#if defined key_si3 || defined key_cice
!
IF( srcv(jpr_itx1)%laction ) THEN ; itx = jpr_itx1
ELSE ; itx = jpr_otx1
ENDIF
! do something only if we just received the stress from atmosphere
IF( nrcvinfo(itx) == OASIS_Rcv ) THEN
! ! ======================= !
IF( srcv(jpr_itx1)%laction ) THEN ! ice stress received !
! ! ======================= !
!
IF( TRIM( sn_rcv_tau%clvref ) == 'cartesian' ) THEN ! 2 components on the sphere
! ! (cartesian to spherical -> 3 to 2 components)
CALL geo2oce( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), frcv(jpr_itz1)%z3(:,:,1), &
& srcv(jpr_itx1)%clgrid, ztx, zty )
frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 1st grid
frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 1st grid
!
IF( srcv(jpr_itx2)%laction ) THEN
CALL geo2oce( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), frcv(jpr_itz2)%z3(:,:,1), &
& srcv(jpr_itx2)%clgrid, ztx, zty )
frcv(jpr_itx2)%z3(:,:,1) = ztx(:,:) ! overwrite 1st comp. on the 2nd grid
frcv(jpr_ity2)%z3(:,:,1) = zty(:,:) ! overwrite 2nd comp. on the 2nd grid
ENDIF
!
ENDIF
!
IF( TRIM( sn_rcv_tau%clvor ) == 'eastward-northward' ) THEN ! 2 components oriented along the local grid
! ! (geographical to local grid -> rotate the components)
CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->i', ztx )
IF( srcv(jpr_itx2)%laction ) THEN
CALL rot_rep( frcv(jpr_itx2)%z3(:,:,1), frcv(jpr_ity2)%z3(:,:,1), srcv(jpr_itx2)%clgrid, 'en->j', zty )
ELSE
CALL rot_rep( frcv(jpr_itx1)%z3(:,:,1), frcv(jpr_ity1)%z3(:,:,1), srcv(jpr_itx1)%clgrid, 'en->j', zty )
ENDIF
frcv(jpr_itx1)%z3(:,:,1) = ztx(:,:) ! overwrite 1st component on the 1st grid
frcv(jpr_ity1)%z3(:,:,1) = zty(:,:) ! overwrite 2nd component on the 1st grid
ENDIF
! ! ======================= !
ELSE ! use ocean stress !
! ! ======================= !
frcv(jpr_itx1)%z3(:,:,1) = frcv(jpr_otx1)%z3(:,:,1)
frcv(jpr_ity1)%z3(:,:,1) = frcv(jpr_oty1)%z3(:,:,1)
!
ENDIF
! ! ======================= !
! ! put on ice grid !
! ! ======================= !
!
! j+1 j -----V---F
! ice stress on ice velocity point ! |
! (C-grid ==>(U,V)) j | T U
! | |
! j j-1 -I-------|
! (for I) | |
! i-1 i i
! i i+1 (for I)
SELECT CASE ( srcv(jpr_itx1)%clgrid )
CASE( 'U' )
p_taui(:,:) = frcv(jpr_itx1)%z3(:,:,1) ! (U,V) ==> (U,V)
p_tauj(:,:) = frcv(jpr_ity1)%z3(:,:,1)
CASE( 'T' )
DO_2D( 0, 0, 0, 0 ) ! T ==> (U,V)
! take care of the land-sea mask to avoid "pollution" of coastal stress. p[uv]taui used in frazil and rheology
zztmp1 = 0.5_wp * ( 2. - umask(ji,jj,1) ) * MAX( tmask(ji,jj,1),tmask(ji+1,jj ,1) )
zztmp2 = 0.5_wp * ( 2. - vmask(ji,jj,1) ) * MAX( tmask(ji,jj,1),tmask(ji ,jj+1,1) )
p_taui(ji,jj) = zztmp1 * ( frcv(jpr_itx1)%z3(ji+1,jj ,1) + frcv(jpr_itx1)%z3(ji,jj,1) )
p_tauj(ji,jj) = zztmp2 * ( frcv(jpr_ity1)%z3(ji ,jj+1,1) + frcv(jpr_ity1)%z3(ji,jj,1) )
END_2D
CALL lbc_lnk( 'sbccpl', p_taui, 'U', -1._wp, p_tauj, 'V', -1._wp )