| 1 | MODULE sbcice_cice |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE sbcice_cice *** |
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| 4 | !! To couple with sea ice model CICE (LANL) |
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| 5 | !!===================================================================== |
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| 6 | #if defined key_cice |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | !! 'key_cice' : CICE sea-ice model |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! sbc_ice_cice : sea-ice model time-stepping and update ocean sbc over ice-covered area |
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| 11 | !! |
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| 12 | !! |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | USE oce ! ocean dynamics and tracers |
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| 15 | USE dom_oce ! ocean space and time domain |
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| 16 | USE domvvl |
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| 17 | USE phycst, only : rcp, rau0, r1_rau0, rhosn, rhoic |
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| 18 | USE in_out_manager ! I/O manager |
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| 19 | USE lib_mpp ! distributed memory computing library |
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| 20 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
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| 21 | USE wrk_nemo ! work arrays |
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| 22 | USE timing ! Timing |
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| 23 | USE daymod ! calendar |
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| 24 | USE fldread ! read input fields |
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| 25 | |
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| 26 | USE sbc_oce ! Surface boundary condition: ocean fields |
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| 27 | USE sbc_ice ! Surface boundary condition: ice fields |
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| 28 | USE sbcblk_core ! Surface boundary condition: CORE bulk |
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| 29 | USE sbccpl |
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| 30 | |
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| 31 | USE ice_kinds_mod |
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| 32 | USE ice_blocks |
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| 33 | USE ice_domain |
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| 34 | USE ice_domain_size |
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| 35 | USE ice_boundary |
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| 36 | USE ice_constants |
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| 37 | USE ice_gather_scatter |
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| 38 | USE ice_calendar, only: dt |
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| 39 | USE ice_state, only: aice,aicen,uvel,vvel,vsno,vsnon,vice,vicen |
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| 40 | USE ice_flux, only: strax,stray,strocnx,strocny,frain,fsnow, & |
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| 41 | sst,sss,uocn,vocn,ss_tltx,ss_tlty,fsalt_gbm, & |
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| 42 | fresh_gbm,fhocn_gbm,fswthru_gbm,frzmlt, & |
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| 43 | flatn_f,fsurfn_f,fcondtopn_f, & |
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| 44 | uatm,vatm,wind,fsw,flw,Tair,potT,Qa,rhoa,zlvl, & |
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| 45 | swvdr,swvdf,swidr,swidf |
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| 46 | USE ice_forcing, only: frcvdr,frcvdf,frcidr,frcidf |
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| 47 | USE ice_atmo, only: calc_strair |
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| 48 | USE ice_therm_vertical, only: calc_Tsfc |
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| 49 | |
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| 50 | USE CICE_InitMod |
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| 51 | USE CICE_RunMod |
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| 52 | USE CICE_FinalMod |
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| 53 | |
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| 54 | IMPLICIT NONE |
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| 55 | PRIVATE |
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| 56 | |
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| 57 | !! * Routine accessibility |
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| 58 | PUBLIC cice_sbc_init ! routine called by sbc_init |
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| 59 | PUBLIC cice_sbc_final ! routine called by sbc_final |
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| 60 | PUBLIC sbc_ice_cice ! routine called by sbc |
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| 61 | |
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| 62 | INTEGER , PARAMETER :: ji_off = INT ( (jpiglo - nx_global) / 2 ) |
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| 63 | INTEGER , PARAMETER :: jj_off = INT ( (jpjglo - ny_global) / 2 ) |
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| 64 | |
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| 65 | INTEGER , PARAMETER :: jpfld = 13 ! maximum number of files to read |
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| 66 | INTEGER , PARAMETER :: jp_snow = 1 ! index of snow file |
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| 67 | INTEGER , PARAMETER :: jp_rain = 2 ! index of rain file |
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| 68 | INTEGER , PARAMETER :: jp_sblm = 3 ! index of sublimation file |
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| 69 | INTEGER , PARAMETER :: jp_top1 = 4 ! index of category 1 topmelt file |
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| 70 | INTEGER , PARAMETER :: jp_top2 = 5 ! index of category 2 topmelt file |
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| 71 | INTEGER , PARAMETER :: jp_top3 = 6 ! index of category 3 topmelt file |
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| 72 | INTEGER , PARAMETER :: jp_top4 = 7 ! index of category 4 topmelt file |
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| 73 | INTEGER , PARAMETER :: jp_top5 = 8 ! index of category 5 topmelt file |
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| 74 | INTEGER , PARAMETER :: jp_bot1 = 9 ! index of category 1 botmelt file |
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| 75 | INTEGER , PARAMETER :: jp_bot2 = 10 ! index of category 2 botmelt file |
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| 76 | INTEGER , PARAMETER :: jp_bot3 = 11 ! index of category 3 botmelt file |
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| 77 | INTEGER , PARAMETER :: jp_bot4 = 12 ! index of category 4 botmelt file |
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| 78 | INTEGER , PARAMETER :: jp_bot5 = 13 ! index of category 5 botmelt file |
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| 79 | TYPE(FLD), ALLOCATABLE, DIMENSION(:) :: sf ! structure of input fields (file informations, fields read) |
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| 80 | |
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| 81 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:,:), PRIVATE :: png ! local array used in sbc_cice_ice |
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| 82 | |
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| 83 | !! * Substitutions |
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| 84 | # include "domzgr_substitute.h90" |
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| 85 | |
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| 86 | CONTAINS |
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| 87 | |
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| 88 | INTEGER FUNCTION sbc_ice_cice_alloc() |
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| 89 | !!---------------------------------------------------------------------- |
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| 90 | !! *** FUNCTION sbc_ice_cice_alloc *** |
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| 91 | !!---------------------------------------------------------------------- |
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| 92 | ALLOCATE( png(jpi,jpj,jpnij), STAT=sbc_ice_cice_alloc ) |
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| 93 | IF( lk_mpp ) CALL mpp_sum ( sbc_ice_cice_alloc ) |
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| 94 | IF( sbc_ice_cice_alloc > 0 ) CALL ctl_warn('sbc_ice_cice_alloc: allocation of arrays failed.') |
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| 95 | END FUNCTION sbc_ice_cice_alloc |
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| 96 | |
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| 97 | SUBROUTINE sbc_ice_cice( kt, nsbc ) |
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| 98 | !!--------------------------------------------------------------------- |
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| 99 | !! *** ROUTINE sbc_ice_cice *** |
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| 100 | !! |
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| 101 | !! ** Purpose : update the ocean surface boundary condition via the |
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| 102 | !! CICE Sea Ice Model time stepping |
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| 103 | !! |
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| 104 | !! ** Method : - Get any extra forcing fields for CICE |
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| 105 | !! - Prepare forcing fields |
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| 106 | !! - CICE model time stepping |
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| 107 | !! - call the routine that computes mass and |
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| 108 | !! heat fluxes at the ice/ocean interface |
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| 109 | !! |
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| 110 | !! ** Action : - time evolution of the CICE sea-ice model |
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| 111 | !! - update all sbc variables below sea-ice: |
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| 112 | !! utau, vtau, qns , qsr, emp , sfx |
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| 113 | !!--------------------------------------------------------------------- |
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| 114 | INTEGER, INTENT(in) :: kt ! ocean time step |
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| 115 | INTEGER, INTENT(in) :: nsbc ! surface forcing type |
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| 116 | !!---------------------------------------------------------------------- |
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| 117 | ! |
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| 118 | IF( nn_timing == 1 ) CALL timing_start('sbc_ice_cice') |
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| 119 | ! |
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| 120 | ! !----------------------! |
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| 121 | IF( MOD( kt-1, nn_fsbc ) == 0 ) THEN ! Ice time-step only ! |
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| 122 | ! !----------------------! |
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| 123 | |
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| 124 | ! Make sure any fluxes required for CICE are set |
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| 125 | IF ( nsbc == 2 ) THEN |
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| 126 | CALL cice_sbc_force(kt) |
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| 127 | ELSE IF ( nsbc == 5 ) THEN |
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| 128 | CALL sbc_cpl_ice_flx( 1.0-fr_i ) |
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| 129 | ENDIF |
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| 130 | |
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| 131 | CALL cice_sbc_in ( kt, nsbc ) |
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| 132 | CALL CICE_Run |
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| 133 | CALL cice_sbc_out ( kt, nsbc ) |
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| 134 | |
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| 135 | IF ( nsbc == 5 ) CALL cice_sbc_hadgam(kt+1) |
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| 136 | |
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| 137 | ENDIF ! End sea-ice time step only |
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| 138 | ! |
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| 139 | IF( nn_timing == 1 ) CALL timing_stop('sbc_ice_cice') |
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| 140 | |
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| 141 | END SUBROUTINE sbc_ice_cice |
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| 142 | |
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| 143 | SUBROUTINE cice_sbc_init (nsbc) |
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| 144 | !!--------------------------------------------------------------------- |
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| 145 | !! *** ROUTINE cice_sbc_init *** |
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| 146 | !! ** Purpose: Initialise ice related fields for NEMO and coupling |
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| 147 | !! |
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| 148 | INTEGER, INTENT( in ) :: nsbc ! surface forcing type |
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| 149 | REAL(wp), DIMENSION(:,:), POINTER :: ztmp1, ztmp2 |
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| 150 | REAL(wp) :: zcoefu, zcoefv, zcoeff ! local scalar |
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| 151 | INTEGER :: ji, jj, jl ! dummy loop indices |
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| 152 | !!--------------------------------------------------------------------- |
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| 153 | |
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| 154 | IF( nn_timing == 1 ) CALL timing_start('cice_sbc_init') |
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| 155 | ! |
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| 156 | CALL wrk_alloc( jpi,jpj, ztmp1, ztmp2 ) |
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| 157 | ! |
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| 158 | IF(lwp) WRITE(numout,*)'cice_sbc_init' |
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| 159 | |
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| 160 | ! Initialize CICE |
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| 161 | CALL CICE_Initialize |
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| 162 | |
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| 163 | ! Do some CICE consistency checks |
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| 164 | IF ( (nsbc == 2) .OR. (nsbc == 5) ) THEN |
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| 165 | IF ( calc_strair .OR. calc_Tsfc ) THEN |
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| 166 | CALL ctl_stop( 'STOP', 'cice_sbc_init : Forcing option requires calc_strair=F and calc_Tsfc=F in ice_in' ) |
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| 167 | ENDIF |
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| 168 | ELSEIF (nsbc == 4) THEN |
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| 169 | IF ( .NOT. (calc_strair .AND. calc_Tsfc) ) THEN |
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| 170 | CALL ctl_stop( 'STOP', 'cice_sbc_init : Forcing option requires calc_strair=T and calc_Tsfc=T in ice_in' ) |
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| 171 | ENDIF |
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| 172 | ENDIF |
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| 173 | |
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| 174 | |
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| 175 | ! allocate sbc_ice and sbc_cice arrays |
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| 176 | IF( sbc_ice_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_ice_cice_alloc : unable to allocate arrays' ) |
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| 177 | IF( sbc_ice_cice_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_ice_cice_alloc : unable to allocate cice arrays' ) |
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| 178 | |
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| 179 | ! Ensure ocean temperatures are nowhere below freezing if not a NEMO restart |
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| 180 | IF( .NOT. ln_rstart ) THEN |
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| 181 | tsn(:,:,:,jp_tem) = MAX (tsn(:,:,:,jp_tem),Tocnfrz) |
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| 182 | tsb(:,:,:,jp_tem) = tsn(:,:,:,jp_tem) |
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| 183 | ENDIF |
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| 184 | |
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| 185 | fr_iu(:,:)=0.0 |
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| 186 | fr_iv(:,:)=0.0 |
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| 187 | |
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| 188 | CALL cice2nemo(aice,fr_i, 'T', 1. ) |
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| 189 | IF ( (nsbc == 2).OR.(nsbc == 5) ) THEN |
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| 190 | DO jl=1,ncat |
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| 191 | CALL cice2nemo(aicen(:,:,jl,:),a_i(:,:,jl), 'T', 1. ) |
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| 192 | ENDDO |
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| 193 | ENDIF |
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| 194 | |
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| 195 | ! T point to U point |
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| 196 | ! T point to V point |
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| 197 | DO jj=1,jpjm1 |
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| 198 | DO ji=1,jpim1 |
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| 199 | fr_iu(ji,jj)=0.5*(fr_i(ji,jj)+fr_i(ji+1,jj))*umask(ji,jj,1) |
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| 200 | fr_iv(ji,jj)=0.5*(fr_i(ji,jj)+fr_i(ji,jj+1))*vmask(ji,jj,1) |
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| 201 | ENDDO |
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| 202 | ENDDO |
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| 203 | |
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| 204 | CALL lbc_lnk ( fr_iu , 'U', 1. ) |
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| 205 | CALL lbc_lnk ( fr_iv , 'V', 1. ) |
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| 206 | |
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| 207 | ! ! embedded sea ice |
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| 208 | IF( nn_ice_embd /= 0 ) THEN ! mass exchanges between ice and ocean (case 1 or 2) set the snow+ice mass |
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| 209 | CALL cice2nemo(vsno(:,:,:),ztmp1,'T', 1. ) |
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| 210 | CALL cice2nemo(vice(:,:,:),ztmp2,'T', 1. ) |
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| 211 | snwice_mass (:,:) = ( rhosn * ztmp1(:,:) + rhoic * ztmp2(:,:) ) |
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| 212 | snwice_mass_b(:,:) = snwice_mass(:,:) |
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| 213 | ELSE |
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| 214 | snwice_mass (:,:) = 0.0_wp ! no mass exchanges |
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| 215 | snwice_mass_b(:,:) = 0.0_wp ! no mass exchanges |
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| 216 | ENDIF |
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| 217 | IF( nn_ice_embd == 2 .AND. & ! full embedment (case 2) & no restart : |
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| 218 | & .NOT.ln_rstart ) THEN ! deplete the initial ssh belew sea-ice area |
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| 219 | sshn(:,:) = sshn(:,:) - snwice_mass(:,:) * r1_rau0 |
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| 220 | sshb(:,:) = sshb(:,:) - snwice_mass(:,:) * r1_rau0 |
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| 221 | ! |
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| 222 | ! Note: Changed the initial values of sshb and sshn=> need to recompute ssh[u,v,f]_[b,n] |
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| 223 | ! which were previously set in domvvl |
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| 224 | IF ( lk_vvl ) THEN ! Is this necessary? embd 2 should be restricted to vvl only??? |
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| 225 | DO jj = 1, jpjm1 |
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| 226 | DO ji = 1, jpim1 ! caution: use of Vector Opt. not possible |
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| 227 | zcoefu = 0.5 * umask(ji,jj,1) / ( e1u(ji,jj) * e2u(ji,jj) ) |
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| 228 | zcoefv = 0.5 * vmask(ji,jj,1) / ( e1v(ji,jj) * e2v(ji,jj) ) |
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| 229 | zcoeff = 0.25 * umask(ji,jj,1) * umask(ji,jj+1,1) |
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| 230 | sshu_b(ji,jj) = zcoefu * ( e1t(ji ,jj) * e2t(ji ,jj) * sshb(ji ,jj) & |
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| 231 | & + e1t(ji+1,jj) * e2t(ji+1,jj) * sshb(ji+1,jj) ) |
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| 232 | sshv_b(ji,jj) = zcoefv * ( e1t(ji,jj ) * e2t(ji,jj ) * sshb(ji,jj ) & |
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| 233 | & + e1t(ji,jj+1) * e2t(ji,jj+1) * sshb(ji,jj+1) ) |
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| 234 | sshu_n(ji,jj) = zcoefu * ( e1t(ji ,jj) * e2t(ji ,jj) * sshn(ji ,jj) & |
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| 235 | & + e1t(ji+1,jj) * e2t(ji+1,jj) * sshn(ji+1,jj) ) |
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| 236 | sshv_n(ji,jj) = zcoefv * ( e1t(ji,jj ) * e2t(ji,jj ) * sshn(ji,jj ) & |
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| 237 | & + e1t(ji,jj+1) * e2t(ji,jj+1) * sshn(ji,jj+1) ) |
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| 238 | END DO |
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| 239 | END DO |
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| 240 | CALL lbc_lnk( sshu_b, 'U', 1. ) ; CALL lbc_lnk( sshu_n, 'U', 1. ) |
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| 241 | CALL lbc_lnk( sshv_b, 'V', 1. ) ; CALL lbc_lnk( sshv_n, 'V', 1. ) |
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| 242 | DO jj = 1, jpjm1 |
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| 243 | DO ji = 1, jpim1 ! NO Vector Opt. |
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| 244 | sshf_n(ji,jj) = 0.5 * umask(ji,jj,1) * umask(ji,jj+1,1) & |
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| 245 | & / ( e1f(ji,jj ) * e2f(ji,jj ) ) & |
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| 246 | & * ( e1u(ji,jj ) * e2u(ji,jj ) * sshu_n(ji,jj ) & |
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| 247 | & + e1u(ji,jj+1) * e2u(ji,jj+1) * sshu_n(ji,jj+1) ) |
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| 248 | END DO |
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| 249 | END DO |
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| 250 | CALL lbc_lnk( sshf_n, 'F', 1. ) |
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| 251 | ENDIF |
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| 252 | ENDIF |
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| 253 | |
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| 254 | CALL wrk_dealloc( jpi,jpj, ztmp1, ztmp2 ) |
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| 255 | ! |
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| 256 | IF( nn_timing == 1 ) CALL timing_stop('cice_sbc_init') |
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| 257 | ! |
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| 258 | END SUBROUTINE cice_sbc_init |
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| 259 | |
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| 260 | |
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| 261 | SUBROUTINE cice_sbc_in (kt, nsbc) |
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| 262 | !!--------------------------------------------------------------------- |
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| 263 | !! *** ROUTINE cice_sbc_in *** |
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| 264 | !! ** Purpose: Set coupling fields and pass to CICE |
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| 265 | !!--------------------------------------------------------------------- |
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| 266 | INTEGER, INTENT(in ) :: kt ! ocean time step |
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| 267 | INTEGER, INTENT(in ) :: nsbc ! surface forcing type |
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| 268 | |
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| 269 | INTEGER :: ji, jj, jl ! dummy loop indices |
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| 270 | REAL(wp), DIMENSION(:,:), POINTER :: ztmp, zpice |
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| 271 | REAL(wp), DIMENSION(:,:,:), POINTER :: ztmpn |
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| 272 | REAL(wp) :: zintb, zintn ! dummy argument |
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| 273 | !!--------------------------------------------------------------------- |
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| 274 | |
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| 275 | IF( nn_timing == 1 ) CALL timing_start('cice_sbc_in') |
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| 276 | ! |
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| 277 | CALL wrk_alloc( jpi,jpj, ztmp, zpice ) |
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| 278 | CALL wrk_alloc( jpi,jpj,ncat, ztmpn ) |
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| 279 | |
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| 280 | IF( kt == nit000 ) THEN |
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| 281 | IF(lwp) WRITE(numout,*)'cice_sbc_in' |
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| 282 | ENDIF |
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| 283 | |
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| 284 | ztmp(:,:)=0.0 |
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| 285 | |
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| 286 | ! Aggregate ice concentration already set in cice_sbc_out (or cice_sbc_init on |
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| 287 | ! the first time-step) |
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| 288 | |
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| 289 | ! forced and coupled case |
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| 290 | |
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| 291 | IF ( (nsbc == 2).OR.(nsbc == 5) ) THEN |
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| 292 | |
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| 293 | ztmpn(:,:,:)=0.0 |
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| 294 | |
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| 295 | ! x comp of wind stress (CI_1) |
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| 296 | ! U point to F point |
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| 297 | DO jj=1,jpjm1 |
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| 298 | DO ji=1,jpi |
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| 299 | ztmp(ji,jj) = 0.5 * ( fr_iu(ji,jj) * utau(ji,jj) & |
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| 300 | + fr_iu(ji,jj+1) * utau(ji,jj+1) ) * fmask(ji,jj,1) |
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| 301 | ENDDO |
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| 302 | ENDDO |
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| 303 | CALL nemo2cice(ztmp,strax,'F', -1. ) |
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| 304 | |
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| 305 | ! y comp of wind stress (CI_2) |
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| 306 | ! V point to F point |
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| 307 | DO jj=1,jpj |
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| 308 | DO ji=1,jpim1 |
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| 309 | ztmp(ji,jj) = 0.5 * ( fr_iv(ji,jj) * vtau(ji,jj) & |
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| 310 | + fr_iv(ji+1,jj) * vtau(ji+1,jj) ) * fmask(ji,jj,1) |
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| 311 | ENDDO |
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| 312 | ENDDO |
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| 313 | CALL nemo2cice(ztmp,stray,'F', -1. ) |
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| 314 | |
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| 315 | ! Surface downward latent heat flux (CI_5) |
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| 316 | IF (nsbc == 2) THEN |
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| 317 | DO jl=1,ncat |
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| 318 | ztmpn(:,:,jl)=qla_ice(:,:,1)*a_i(:,:,jl) |
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| 319 | ENDDO |
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| 320 | ELSE |
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| 321 | ! emp_ice is set in sbc_cpl_ice_flx as sublimation-snow |
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| 322 | qla_ice(:,:,1)= - ( emp_ice(:,:)+sprecip(:,:) ) * Lsub |
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| 323 | ! End of temporary code |
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| 324 | DO jj=1,jpj |
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| 325 | DO ji=1,jpi |
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| 326 | IF (fr_i(ji,jj).eq.0.0) THEN |
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| 327 | DO jl=1,ncat |
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| 328 | ztmpn(ji,jj,jl)=0.0 |
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| 329 | ENDDO |
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| 330 | ! This will then be conserved in CICE |
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| 331 | ztmpn(ji,jj,1)=qla_ice(ji,jj,1) |
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| 332 | ELSE |
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| 333 | DO jl=1,ncat |
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| 334 | ztmpn(ji,jj,jl)=qla_ice(ji,jj,1)*a_i(ji,jj,jl)/fr_i(ji,jj) |
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| 335 | ENDDO |
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| 336 | ENDIF |
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| 337 | ENDDO |
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| 338 | ENDDO |
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| 339 | ENDIF |
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| 340 | DO jl=1,ncat |
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| 341 | CALL nemo2cice(ztmpn(:,:,jl),flatn_f(:,:,jl,:),'T', 1. ) |
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| 342 | |
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| 343 | ! GBM conductive flux through ice (CI_6) |
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| 344 | ! Convert to GBM |
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| 345 | IF (nsbc == 2) THEN |
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| 346 | ztmp(:,:) = botmelt(:,:,jl)*a_i(:,:,jl) |
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| 347 | ELSE |
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| 348 | ztmp(:,:) = botmelt(:,:,jl) |
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| 349 | ENDIF |
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| 350 | CALL nemo2cice(ztmp,fcondtopn_f(:,:,jl,:),'T', 1. ) |
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| 351 | |
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| 352 | ! GBM surface heat flux (CI_7) |
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| 353 | ! Convert to GBM |
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| 354 | IF (nsbc == 2) THEN |
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| 355 | ztmp(:,:) = (topmelt(:,:,jl)+botmelt(:,:,jl))*a_i(:,:,jl) |
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| 356 | ELSE |
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| 357 | ztmp(:,:) = (topmelt(:,:,jl)+botmelt(:,:,jl)) |
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| 358 | ENDIF |
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| 359 | CALL nemo2cice(ztmp,fsurfn_f(:,:,jl,:),'T', 1. ) |
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| 360 | ENDDO |
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| 361 | |
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| 362 | ELSE IF (nsbc == 4) THEN |
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| 363 | |
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| 364 | ! Pass CORE forcing fields to CICE (which will calculate heat fluxes etc itself) |
|---|
| 365 | ! x comp and y comp of atmosphere surface wind (CICE expects on T points) |
|---|
| 366 | ztmp(:,:) = wndi_ice(:,:) |
|---|
| 367 | CALL nemo2cice(ztmp,uatm,'T', -1. ) |
|---|
| 368 | ztmp(:,:) = wndj_ice(:,:) |
|---|
| 369 | CALL nemo2cice(ztmp,vatm,'T', -1. ) |
|---|
| 370 | ztmp(:,:) = SQRT ( wndi_ice(:,:)**2 + wndj_ice(:,:)**2 ) |
|---|
| 371 | CALL nemo2cice(ztmp,wind,'T', 1. ) ! Wind speed (m/s) |
|---|
| 372 | ztmp(:,:) = qsr_ice(:,:,1) |
|---|
| 373 | CALL nemo2cice(ztmp,fsw,'T', 1. ) ! Incoming short-wave (W/m^2) |
|---|
| 374 | ztmp(:,:) = qlw_ice(:,:,1) |
|---|
| 375 | CALL nemo2cice(ztmp,flw,'T', 1. ) ! Incoming long-wave (W/m^2) |
|---|
| 376 | ztmp(:,:) = tatm_ice(:,:) |
|---|
| 377 | CALL nemo2cice(ztmp,Tair,'T', 1. ) ! Air temperature (K) |
|---|
| 378 | CALL nemo2cice(ztmp,potT,'T', 1. ) ! Potential temp (K) |
|---|
| 379 | ! Following line uses MAX(....) to avoid problems if tatm_ice has unset halo rows |
|---|
| 380 | ztmp(:,:) = 101000. / ( 287.04 * MAX(1.0,tatm_ice(:,:)) ) |
|---|
| 381 | ! Constant (101000.) atm pressure assumed |
|---|
| 382 | CALL nemo2cice(ztmp,rhoa,'T', 1. ) ! Air density (kg/m^3) |
|---|
| 383 | ztmp(:,:) = qatm_ice(:,:) |
|---|
| 384 | CALL nemo2cice(ztmp,Qa,'T', 1. ) ! Specific humidity (kg/kg) |
|---|
| 385 | ztmp(:,:)=10.0 |
|---|
| 386 | CALL nemo2cice(ztmp,zlvl,'T', 1. ) ! Atmos level height (m) |
|---|
| 387 | |
|---|
| 388 | ! May want to check all values are physically realistic (as in CICE routine |
|---|
| 389 | ! prepare_forcing)? |
|---|
| 390 | |
|---|
| 391 | ! Divide shortwave into spectral bands (as in prepare_forcing) |
|---|
| 392 | ztmp(:,:)=qsr_ice(:,:,1)*frcvdr ! visible direct |
|---|
| 393 | CALL nemo2cice(ztmp,swvdr,'T', 1. ) |
|---|
| 394 | ztmp(:,:)=qsr_ice(:,:,1)*frcvdf ! visible diffuse |
|---|
| 395 | CALL nemo2cice(ztmp,swvdf,'T', 1. ) |
|---|
| 396 | ztmp(:,:)=qsr_ice(:,:,1)*frcidr ! near IR direct |
|---|
| 397 | CALL nemo2cice(ztmp,swidr,'T', 1. ) |
|---|
| 398 | ztmp(:,:)=qsr_ice(:,:,1)*frcidf ! near IR diffuse |
|---|
| 399 | CALL nemo2cice(ztmp,swidf,'T', 1. ) |
|---|
| 400 | |
|---|
| 401 | ENDIF |
|---|
| 402 | |
|---|
| 403 | ! Snowfall |
|---|
| 404 | ! Ensure fsnow is positive (as in CICE routine prepare_forcing) |
|---|
| 405 | ztmp(:,:)=MAX(fr_i(:,:)*sprecip(:,:),0.0) |
|---|
| 406 | CALL nemo2cice(ztmp,fsnow,'T', 1. ) |
|---|
| 407 | |
|---|
| 408 | ! Rainfall |
|---|
| 409 | ztmp(:,:)=fr_i(:,:)*(tprecip(:,:)-sprecip(:,:)) |
|---|
| 410 | CALL nemo2cice(ztmp,frain,'T', 1. ) |
|---|
| 411 | |
|---|
| 412 | ! Freezing/melting potential |
|---|
| 413 | ! Calculated over NEMO leapfrog timestep (hence 2*dt) |
|---|
| 414 | nfrzmlt(:,:)=rau0*rcp*fse3t_m(:,:,1)*(Tocnfrz-sst_m(:,:))/(2.0*dt) |
|---|
| 415 | |
|---|
| 416 | ztmp(:,:) = nfrzmlt(:,:) |
|---|
| 417 | CALL nemo2cice(ztmp,frzmlt,'T', 1. ) |
|---|
| 418 | |
|---|
| 419 | ! SST and SSS |
|---|
| 420 | |
|---|
| 421 | CALL nemo2cice(sst_m,sst,'T', 1. ) |
|---|
| 422 | CALL nemo2cice(sss_m,sss,'T', 1. ) |
|---|
| 423 | |
|---|
| 424 | ! x comp and y comp of surface ocean current |
|---|
| 425 | ! U point to F point |
|---|
| 426 | DO jj=1,jpjm1 |
|---|
| 427 | DO ji=1,jpi |
|---|
| 428 | ztmp(ji,jj)=0.5*(ssu_m(ji,jj)+ssu_m(ji,jj+1))*fmask(ji,jj,1) |
|---|
| 429 | ENDDO |
|---|
| 430 | ENDDO |
|---|
| 431 | CALL nemo2cice(ztmp,uocn,'F', -1. ) |
|---|
| 432 | |
|---|
| 433 | ! V point to F point |
|---|
| 434 | DO jj=1,jpj |
|---|
| 435 | DO ji=1,jpim1 |
|---|
| 436 | ztmp(ji,jj)=0.5*(ssv_m(ji,jj)+ssv_m(ji+1,jj))*fmask(ji,jj,1) |
|---|
| 437 | ENDDO |
|---|
| 438 | ENDDO |
|---|
| 439 | CALL nemo2cice(ztmp,vocn,'F', -1. ) |
|---|
| 440 | |
|---|
| 441 | IF( nn_ice_embd == 2 ) THEN !== embedded sea ice: compute representative ice top surface ==! |
|---|
| 442 | ! |
|---|
| 443 | ! average interpolation coeff as used in dynspg = (1/nn_fsbc) * {SUM[n/nn_fsbc], n=0,nn_fsbc-1} |
|---|
| 444 | ! = (1/nn_fsbc)^2 * {SUM[n], n=0,nn_fsbc-1} |
|---|
| 445 | zintn = REAL( nn_fsbc - 1 ) / REAL( nn_fsbc ) * 0.5_wp |
|---|
| 446 | ! |
|---|
| 447 | ! average interpolation coeff as used in dynspg = (1/nn_fsbc) * {SUM[1-n/nn_fsbc], n=0,nn_fsbc-1} |
|---|
| 448 | ! = (1/nn_fsbc)^2 * (nn_fsbc^2 - {SUM[n], n=0,nn_fsbc-1}) |
|---|
| 449 | zintb = REAL( nn_fsbc + 1 ) / REAL( nn_fsbc ) * 0.5_wp |
|---|
| 450 | ! |
|---|
| 451 | zpice(:,:) = ssh_m(:,:) + ( zintn * snwice_mass(:,:) + zintb * snwice_mass_b(:,:) ) * r1_rau0 |
|---|
| 452 | ! |
|---|
| 453 | ! |
|---|
| 454 | ELSE !== non-embedded sea ice: use ocean surface for slope calculation ==! |
|---|
| 455 | zpice(:,:) = ssh_m(:,:) |
|---|
| 456 | ENDIF |
|---|
| 457 | |
|---|
| 458 | ! x comp and y comp of sea surface slope (on F points) |
|---|
| 459 | ! T point to F point |
|---|
| 460 | DO jj=1,jpjm1 |
|---|
| 461 | DO ji=1,jpim1 |
|---|
| 462 | ztmp(ji,jj)=0.5 * ( (zpice(ji+1,jj )-zpice(ji,jj ))/e1u(ji,jj ) & |
|---|
| 463 | + (zpice(ji+1,jj+1)-zpice(ji,jj+1))/e1u(ji,jj+1) ) & |
|---|
| 464 | * fmask(ji,jj,1) |
|---|
| 465 | ENDDO |
|---|
| 466 | ENDDO |
|---|
| 467 | CALL nemo2cice(ztmp,ss_tltx,'F', -1. ) |
|---|
| 468 | |
|---|
| 469 | ! T point to F point |
|---|
| 470 | DO jj=1,jpjm1 |
|---|
| 471 | DO ji=1,jpim1 |
|---|
| 472 | ztmp(ji,jj)=0.5 * ( (zpice(ji ,jj+1)-zpice(ji ,jj))/e2v(ji ,jj) & |
|---|
| 473 | + (zpice(ji+1,jj+1)-zpice(ji+1,jj))/e2v(ji+1,jj) ) & |
|---|
| 474 | * fmask(ji,jj,1) |
|---|
| 475 | ENDDO |
|---|
| 476 | ENDDO |
|---|
| 477 | CALL nemo2cice(ztmp,ss_tlty,'F', -1. ) |
|---|
| 478 | |
|---|
| 479 | CALL wrk_dealloc( jpi,jpj, ztmp ) |
|---|
| 480 | CALL wrk_dealloc( jpi,jpj,ncat, ztmpn ) |
|---|
| 481 | ! |
|---|
| 482 | IF( nn_timing == 1 ) CALL timing_stop('cice_sbc_in') |
|---|
| 483 | ! |
|---|
| 484 | END SUBROUTINE cice_sbc_in |
|---|
| 485 | |
|---|
| 486 | |
|---|
| 487 | SUBROUTINE cice_sbc_out (kt,nsbc) |
|---|
| 488 | !!--------------------------------------------------------------------- |
|---|
| 489 | !! *** ROUTINE cice_sbc_out *** |
|---|
| 490 | !! ** Purpose: Get fields from CICE and set surface fields for NEMO |
|---|
| 491 | !!--------------------------------------------------------------------- |
|---|
| 492 | INTEGER, INTENT( in ) :: kt ! ocean time step |
|---|
| 493 | INTEGER, INTENT( in ) :: nsbc ! surface forcing type |
|---|
| 494 | |
|---|
| 495 | INTEGER :: ji, jj, jl ! dummy loop indices |
|---|
| 496 | REAL(wp), DIMENSION(:,:), POINTER :: ztmp1, ztmp2 |
|---|
| 497 | !!--------------------------------------------------------------------- |
|---|
| 498 | |
|---|
| 499 | IF( nn_timing == 1 ) CALL timing_start('cice_sbc_out') |
|---|
| 500 | ! |
|---|
| 501 | CALL wrk_alloc( jpi,jpj, ztmp1, ztmp2 ) |
|---|
| 502 | |
|---|
| 503 | IF( kt == nit000 ) THEN |
|---|
| 504 | IF(lwp) WRITE(numout,*)'cice_sbc_out' |
|---|
| 505 | ENDIF |
|---|
| 506 | |
|---|
| 507 | ! x comp of ocean-ice stress |
|---|
| 508 | CALL cice2nemo(strocnx,ztmp1,'F', -1. ) |
|---|
| 509 | ss_iou(:,:)=0.0 |
|---|
| 510 | ! F point to U point |
|---|
| 511 | DO jj=2,jpjm1 |
|---|
| 512 | DO ji=2,jpim1 |
|---|
| 513 | ss_iou(ji,jj) = 0.5 * ( ztmp1(ji,jj-1) + ztmp1(ji,jj) ) * umask(ji,jj,1) |
|---|
| 514 | ENDDO |
|---|
| 515 | ENDDO |
|---|
| 516 | CALL lbc_lnk( ss_iou , 'U', -1. ) |
|---|
| 517 | |
|---|
| 518 | ! y comp of ocean-ice stress |
|---|
| 519 | CALL cice2nemo(strocny,ztmp1,'F', -1. ) |
|---|
| 520 | ss_iov(:,:)=0.0 |
|---|
| 521 | ! F point to V point |
|---|
| 522 | |
|---|
| 523 | DO jj=1,jpjm1 |
|---|
| 524 | DO ji=2,jpim1 |
|---|
| 525 | ss_iov(ji,jj) = 0.5 * ( ztmp1(ji-1,jj) + ztmp1(ji,jj) ) * vmask(ji,jj,1) |
|---|
| 526 | ENDDO |
|---|
| 527 | ENDDO |
|---|
| 528 | CALL lbc_lnk( ss_iov , 'V', -1. ) |
|---|
| 529 | |
|---|
| 530 | ! x and y comps of surface stress |
|---|
| 531 | ! Combine wind stress and ocean-ice stress |
|---|
| 532 | ! [Note that fr_iu hasn't yet been updated, so still from start of CICE timestep] |
|---|
| 533 | |
|---|
| 534 | utau(:,:)=(1.0-fr_iu(:,:))*utau(:,:)-ss_iou(:,:) |
|---|
| 535 | vtau(:,:)=(1.0-fr_iv(:,:))*vtau(:,:)-ss_iov(:,:) |
|---|
| 536 | |
|---|
| 537 | ! Freshwater fluxes |
|---|
| 538 | |
|---|
| 539 | IF (nsbc == 2) THEN |
|---|
| 540 | ! Note that emp from the forcing files is evap*(1-aice)-(tprecip-aice*sprecip) |
|---|
| 541 | ! What we want here is evap*(1-aice)-tprecip*(1-aice) hence manipulation below |
|---|
| 542 | ! Not ideal since aice won't be the same as in the atmosphere. |
|---|
| 543 | ! Better to use evap and tprecip? (but for now don't read in evap in this case) |
|---|
| 544 | emp(:,:) = emp(:,:)+fr_i(:,:)*(tprecip(:,:)-sprecip(:,:)) |
|---|
| 545 | ELSE IF (nsbc == 4) THEN |
|---|
| 546 | emp(:,:) = (1.0-fr_i(:,:))*emp(:,:) |
|---|
| 547 | ELSE IF (nsbc ==5) THEN |
|---|
| 548 | ! emp_tot is set in sbc_cpl_ice_flx (called from cice_sbc_in above) |
|---|
| 549 | ! This is currently as required with the coupling fields from the UM atmosphere |
|---|
| 550 | emp(:,:) = emp_tot(:,:)+tprecip(:,:)*fr_i(:,:) |
|---|
| 551 | ENDIF |
|---|
| 552 | |
|---|
| 553 | CALL cice2nemo(fresh_gbm,ztmp1,'T', 1. ) |
|---|
| 554 | CALL cice2nemo(fsalt_gbm,ztmp2,'T', 1. ) |
|---|
| 555 | |
|---|
| 556 | ! Check to avoid unphysical expression when ice is forming (ztmp1 negative) |
|---|
| 557 | ! Otherwise we are effectively allowing ice of higher salinity than the ocean to form |
|---|
| 558 | ! which has to be compensated for by the ocean salinity potentially going negative |
|---|
| 559 | ! This check breaks conservation but seems reasonable until we have prognostic ice salinity |
|---|
| 560 | ! Note the 1000.0 below is to convert from kg salt to g salt (needed for PSU) |
|---|
| 561 | WHERE (ztmp1(:,:).lt.0.0) ztmp2(:,:)=MAX(ztmp2(:,:),ztmp1(:,:)*sss_m(:,:)/1000.0) |
|---|
| 562 | sfx(:,:)=ztmp2(:,:)*1000.0 |
|---|
| 563 | emp(:,:)=emp(:,:)-ztmp1(:,:) |
|---|
| 564 | |
|---|
| 565 | CALL lbc_lnk( emp , 'T', 1. ) |
|---|
| 566 | CALL lbc_lnk( sfx , 'T', 1. ) |
|---|
| 567 | |
|---|
| 568 | ! Solar penetrative radiation and non solar surface heat flux |
|---|
| 569 | |
|---|
| 570 | ! Scale qsr and qns according to ice fraction (bulk formulae only) |
|---|
| 571 | |
|---|
| 572 | IF (nsbc == 4) THEN |
|---|
| 573 | qsr(:,:)=qsr(:,:)*(1.0-fr_i(:,:)) |
|---|
| 574 | qns(:,:)=qns(:,:)*(1.0-fr_i(:,:)) |
|---|
| 575 | ENDIF |
|---|
| 576 | ! Take into account snow melting except for fully coupled when already in qns_tot |
|---|
| 577 | IF (nsbc == 5) THEN |
|---|
| 578 | qsr(:,:)= qsr_tot(:,:) |
|---|
| 579 | qns(:,:)= qns_tot(:,:) |
|---|
| 580 | ELSE |
|---|
| 581 | qns(:,:)= qns(:,:)-sprecip(:,:)*Lfresh*(1.0-fr_i(:,:)) |
|---|
| 582 | ENDIF |
|---|
| 583 | |
|---|
| 584 | ! Now add in ice / snow related terms |
|---|
| 585 | ! [fswthru will be zero unless running with calc_Tsfc=T in CICE] |
|---|
| 586 | CALL cice2nemo(fswthru_gbm,ztmp1,'T', 1. ) |
|---|
| 587 | qsr(:,:)=qsr(:,:)+ztmp1(:,:) |
|---|
| 588 | CALL lbc_lnk( qsr , 'T', 1. ) |
|---|
| 589 | |
|---|
| 590 | DO jj=1,jpj |
|---|
| 591 | DO ji=1,jpi |
|---|
| 592 | nfrzmlt(ji,jj)=MAX(nfrzmlt(ji,jj),0.0) |
|---|
| 593 | ENDDO |
|---|
| 594 | ENDDO |
|---|
| 595 | |
|---|
| 596 | CALL cice2nemo(fhocn_gbm,ztmp1,'T', 1. ) |
|---|
| 597 | qns(:,:)=qns(:,:)+nfrzmlt(:,:)+ztmp1(:,:) |
|---|
| 598 | |
|---|
| 599 | CALL lbc_lnk( qns , 'T', 1. ) |
|---|
| 600 | |
|---|
| 601 | ! Prepare for the following CICE time-step |
|---|
| 602 | |
|---|
| 603 | CALL cice2nemo(aice,fr_i,'T', 1. ) |
|---|
| 604 | IF ( (nsbc == 2).OR.(nsbc == 5) ) THEN |
|---|
| 605 | DO jl=1,ncat |
|---|
| 606 | CALL cice2nemo(aicen(:,:,jl,:),a_i(:,:,jl), 'T', 1. ) |
|---|
| 607 | ENDDO |
|---|
| 608 | ENDIF |
|---|
| 609 | |
|---|
| 610 | ! T point to U point |
|---|
| 611 | ! T point to V point |
|---|
| 612 | DO jj=1,jpjm1 |
|---|
| 613 | DO ji=1,jpim1 |
|---|
| 614 | fr_iu(ji,jj)=0.5*(fr_i(ji,jj)+fr_i(ji+1,jj))*umask(ji,jj,1) |
|---|
| 615 | fr_iv(ji,jj)=0.5*(fr_i(ji,jj)+fr_i(ji,jj+1))*vmask(ji,jj,1) |
|---|
| 616 | ENDDO |
|---|
| 617 | ENDDO |
|---|
| 618 | |
|---|
| 619 | CALL lbc_lnk ( fr_iu , 'U', 1. ) |
|---|
| 620 | CALL lbc_lnk ( fr_iv , 'V', 1. ) |
|---|
| 621 | |
|---|
| 622 | ! ! embedded sea ice |
|---|
| 623 | IF( nn_ice_embd /= 0 ) THEN ! mass exchanges between ice and ocean (case 1 or 2) set the snow+ice mass |
|---|
| 624 | CALL cice2nemo(vsno(:,:,:),ztmp1,'T', 1. ) |
|---|
| 625 | CALL cice2nemo(vice(:,:,:),ztmp2,'T', 1. ) |
|---|
| 626 | snwice_mass (:,:) = ( rhosn * ztmp1(:,:) + rhoic * ztmp2(:,:) ) |
|---|
| 627 | snwice_mass_b(:,:) = snwice_mass(:,:) |
|---|
| 628 | snwice_fmass (:,:) = ( snwice_mass(:,:) - snwice_mass_b(:,:) ) / dt |
|---|
| 629 | ENDIF |
|---|
| 630 | |
|---|
| 631 | ! Release work space |
|---|
| 632 | |
|---|
| 633 | CALL wrk_dealloc( jpi,jpj, ztmp1, ztmp2 ) |
|---|
| 634 | ! |
|---|
| 635 | IF( nn_timing == 1 ) CALL timing_stop('cice_sbc_out') |
|---|
| 636 | ! |
|---|
| 637 | END SUBROUTINE cice_sbc_out |
|---|
| 638 | |
|---|
| 639 | |
|---|
| 640 | #if defined key_oasis3 || defined key_oasis4 |
|---|
| 641 | SUBROUTINE cice_sbc_hadgam( kt ) |
|---|
| 642 | !!--------------------------------------------------------------------- |
|---|
| 643 | !! *** ROUTINE cice_sbc_hadgam *** |
|---|
| 644 | !! ** Purpose: Prepare fields needed to pass to HadGAM3 atmosphere |
|---|
| 645 | !! |
|---|
| 646 | !! |
|---|
| 647 | INTEGER, INTENT( in ) :: kt ! ocean time step |
|---|
| 648 | !!--------------------------------------------------------------------- |
|---|
| 649 | |
|---|
| 650 | INTEGER :: jl ! dummy loop index |
|---|
| 651 | INTEGER :: ierror |
|---|
| 652 | |
|---|
| 653 | IF( nn_timing == 1 ) CALL timing_start('cice_sbc_hadgam') |
|---|
| 654 | ! |
|---|
| 655 | IF( kt == nit000 ) THEN |
|---|
| 656 | IF(lwp) WRITE(numout,*)'cice_sbc_hadgam' |
|---|
| 657 | IF( sbc_cpl_alloc() /= 0 ) CALL ctl_stop( 'STOP', 'sbc_cpl_alloc : unable to allocate arrays' ) |
|---|
| 658 | ENDIF |
|---|
| 659 | |
|---|
| 660 | ! ! =========================== ! |
|---|
| 661 | ! ! Prepare Coupling fields ! |
|---|
| 662 | ! ! =========================== ! |
|---|
| 663 | |
|---|
| 664 | ! x and y comp of ice velocity |
|---|
| 665 | |
|---|
| 666 | CALL cice2nemo(uvel,u_ice,'F', -1. ) |
|---|
| 667 | CALL cice2nemo(vvel,v_ice,'F', -1. ) |
|---|
| 668 | |
|---|
| 669 | ! Ice concentration (CO_1) = a_i calculated at end of cice_sbc_out |
|---|
| 670 | |
|---|
| 671 | ! Snow and ice thicknesses (CO_2 and CO_3) |
|---|
| 672 | |
|---|
| 673 | DO jl = 1,ncat |
|---|
| 674 | CALL cice2nemo(vsnon(:,:,jl,:),ht_s(:,:,jl),'T', 1. ) |
|---|
| 675 | CALL cice2nemo(vicen(:,:,jl,:),ht_i(:,:,jl),'T', 1. ) |
|---|
| 676 | ENDDO |
|---|
| 677 | ! |
|---|
| 678 | IF( nn_timing == 1 ) CALL timing_stop('cice_sbc_hadgam') |
|---|
| 679 | ! |
|---|
| 680 | END SUBROUTINE cice_sbc_hadgam |
|---|
| 681 | |
|---|
| 682 | #else |
|---|
| 683 | SUBROUTINE cice_sbc_hadgam( kt ) ! Dummy routine |
|---|
| 684 | INTEGER, INTENT( in ) :: kt ! ocean time step |
|---|
| 685 | WRITE(*,*) 'cice_sbc_hadgam: You should not have seen this print! error?' |
|---|
| 686 | END SUBROUTINE cice_sbc_hadgam |
|---|
| 687 | #endif |
|---|
| 688 | |
|---|
| 689 | SUBROUTINE cice_sbc_final |
|---|
| 690 | !!--------------------------------------------------------------------- |
|---|
| 691 | !! *** ROUTINE cice_sbc_final *** |
|---|
| 692 | !! ** Purpose: Finalize CICE |
|---|
| 693 | !!--------------------------------------------------------------------- |
|---|
| 694 | |
|---|
| 695 | IF(lwp) WRITE(numout,*)'cice_sbc_final' |
|---|
| 696 | |
|---|
| 697 | CALL CICE_Finalize |
|---|
| 698 | |
|---|
| 699 | END SUBROUTINE cice_sbc_final |
|---|
| 700 | |
|---|
| 701 | SUBROUTINE cice_sbc_force (kt) |
|---|
| 702 | !!--------------------------------------------------------------------- |
|---|
| 703 | !! *** ROUTINE cice_sbc_force *** |
|---|
| 704 | !! ** Purpose : Provide CICE forcing from files |
|---|
| 705 | !! |
|---|
| 706 | !!--------------------------------------------------------------------- |
|---|
| 707 | !! ** Method : READ monthly flux file in NetCDF files |
|---|
| 708 | !! |
|---|
| 709 | !! snowfall |
|---|
| 710 | !! rainfall |
|---|
| 711 | !! sublimation rate |
|---|
| 712 | !! topmelt (category) |
|---|
| 713 | !! botmelt (category) |
|---|
| 714 | !! |
|---|
| 715 | !! History : |
|---|
| 716 | !!---------------------------------------------------------------------- |
|---|
| 717 | !! * Modules used |
|---|
| 718 | USE iom |
|---|
| 719 | |
|---|
| 720 | !! * arguments |
|---|
| 721 | INTEGER, INTENT( in ) :: kt ! ocean time step |
|---|
| 722 | |
|---|
| 723 | INTEGER :: ierror ! return error code |
|---|
| 724 | INTEGER :: ifpr ! dummy loop index |
|---|
| 725 | !! |
|---|
| 726 | CHARACTER(len=100) :: cn_dir ! Root directory for location of CICE forcing files |
|---|
| 727 | TYPE(FLD_N), DIMENSION(jpfld) :: slf_i ! array of namelist informations on the fields to read |
|---|
| 728 | TYPE(FLD_N) :: sn_snow, sn_rain, sn_sblm ! informations about the fields to be read |
|---|
| 729 | TYPE(FLD_N) :: sn_top1, sn_top2, sn_top3, sn_top4, sn_top5 |
|---|
| 730 | TYPE(FLD_N) :: sn_bot1, sn_bot2, sn_bot3, sn_bot4, sn_bot5 |
|---|
| 731 | |
|---|
| 732 | !! |
|---|
| 733 | NAMELIST/namsbc_cice/ cn_dir, sn_snow, sn_rain, sn_sblm, & |
|---|
| 734 | & sn_top1, sn_top2, sn_top3, sn_top4, sn_top5, & |
|---|
| 735 | & sn_bot1, sn_bot2, sn_bot3, sn_bot4, sn_bot5 |
|---|
| 736 | !!--------------------------------------------------------------------- |
|---|
| 737 | |
|---|
| 738 | ! ! ====================== ! |
|---|
| 739 | IF( kt == nit000 ) THEN ! First call kt=nit000 ! |
|---|
| 740 | ! ! ====================== ! |
|---|
| 741 | ! set file information (default values) |
|---|
| 742 | cn_dir = './' ! directory in which the model is executed |
|---|
| 743 | |
|---|
| 744 | ! (NB: frequency positive => hours, negative => months) |
|---|
| 745 | ! ! file ! frequency ! variable ! time intep ! clim ! 'yearly' or ! weights ! rotation ! |
|---|
| 746 | ! ! name ! (hours) ! name ! (T/F) ! (T/F) ! 'monthly' ! filename ! pairs ! |
|---|
| 747 | sn_snow = FLD_N( 'snowfall_1m' , -1. , 'snowfall' , .true. , .true. , ' yearly' , '' , '' ) |
|---|
| 748 | sn_rain = FLD_N( 'rainfall_1m' , -1. , 'rainfall' , .true. , .true. , ' yearly' , '' , '' ) |
|---|
| 749 | sn_sblm = FLD_N( 'sublim_1m' , -1. , 'sublim' , .true. , .true. , ' yearly' , '' , '' ) |
|---|
| 750 | sn_top1 = FLD_N( 'topmeltn1_1m' , -1. , 'topmeltn1' , .true. , .true. , ' yearly' , '' , '' ) |
|---|
| 751 | sn_top2 = FLD_N( 'topmeltn2_1m' , -1. , 'topmeltn2' , .true. , .true. , ' yearly' , '' , '' ) |
|---|
| 752 | sn_top3 = FLD_N( 'topmeltn3_1m' , -1. , 'topmeltn3' , .true. , .true. , ' yearly' , '' , '' ) |
|---|
| 753 | sn_top4 = FLD_N( 'topmeltn4_1m' , -1. , 'topmeltn4' , .true. , .true. , ' yearly' , '' , '' ) |
|---|
| 754 | sn_top5 = FLD_N( 'topmeltn5_1m' , -1. , 'topmeltn5' , .true. , .true. , ' yearly' , '' , '' ) |
|---|
| 755 | sn_bot1 = FLD_N( 'botmeltn1_1m' , -1. , 'botmeltn1' , .true. , .true. , ' yearly' , '' , '' ) |
|---|
| 756 | sn_bot2 = FLD_N( 'botmeltn2_1m' , -1. , 'botmeltn2' , .true. , .true. , ' yearly' , '' , '' ) |
|---|
| 757 | sn_bot3 = FLD_N( 'botmeltn3_1m' , -1. , 'botmeltn3' , .true. , .true. , ' yearly' , '' , '' ) |
|---|
| 758 | sn_bot4 = FLD_N( 'botmeltn4_1m' , -1. , 'botmeltn4' , .true. , .true. , ' yearly' , '' , '' ) |
|---|
| 759 | sn_bot5 = FLD_N( 'botmeltn5_1m' , -1. , 'botmeltn5' , .true. , .true. , ' yearly' , '' , '' ) |
|---|
| 760 | |
|---|
| 761 | ! REWIND ( numnam ) ! ... at some point might read in from NEMO namelist? |
|---|
| 762 | ! READ ( numnam, namsbc_cice ) |
|---|
| 763 | |
|---|
| 764 | ! store namelist information in an array |
|---|
| 765 | slf_i(jp_snow) = sn_snow ; slf_i(jp_rain) = sn_rain ; slf_i(jp_sblm) = sn_sblm |
|---|
| 766 | slf_i(jp_top1) = sn_top1 ; slf_i(jp_top2) = sn_top2 ; slf_i(jp_top3) = sn_top3 |
|---|
| 767 | slf_i(jp_top4) = sn_top4 ; slf_i(jp_top5) = sn_top5 ; slf_i(jp_bot1) = sn_bot1 |
|---|
| 768 | slf_i(jp_bot2) = sn_bot2 ; slf_i(jp_bot3) = sn_bot3 ; slf_i(jp_bot4) = sn_bot4 |
|---|
| 769 | slf_i(jp_bot5) = sn_bot5 |
|---|
| 770 | |
|---|
| 771 | ! set sf structure |
|---|
| 772 | ALLOCATE( sf(jpfld), STAT=ierror ) |
|---|
| 773 | IF( ierror > 0 ) THEN |
|---|
| 774 | CALL ctl_stop( 'cice_sbc_force: unable to allocate sf structure' ) ; RETURN |
|---|
| 775 | ENDIF |
|---|
| 776 | |
|---|
| 777 | DO ifpr= 1, jpfld |
|---|
| 778 | ALLOCATE( sf(ifpr)%fnow(jpi,jpj,1) ) |
|---|
| 779 | ALLOCATE( sf(ifpr)%fdta(jpi,jpj,1,2) ) |
|---|
| 780 | END DO |
|---|
| 781 | |
|---|
| 782 | ! fill sf with slf_i and control print |
|---|
| 783 | CALL fld_fill( sf, slf_i, cn_dir, 'cice_sbc_force', 'flux formulation for CICE', 'namsbc_cice' ) |
|---|
| 784 | ! |
|---|
| 785 | ENDIF |
|---|
| 786 | |
|---|
| 787 | CALL fld_read( kt, nn_fsbc, sf ) ! Read input fields and provides the |
|---|
| 788 | ! ! input fields at the current time-step |
|---|
| 789 | |
|---|
| 790 | ! set the fluxes from read fields |
|---|
| 791 | sprecip(:,:) = sf(jp_snow)%fnow(:,:,1) |
|---|
| 792 | tprecip(:,:) = sf(jp_snow)%fnow(:,:,1)+sf(jp_rain)%fnow(:,:,1) |
|---|
| 793 | ! May be better to do this conversion somewhere else |
|---|
| 794 | qla_ice(:,:,1) = -Lsub*sf(jp_sblm)%fnow(:,:,1) |
|---|
| 795 | topmelt(:,:,1) = sf(jp_top1)%fnow(:,:,1) |
|---|
| 796 | topmelt(:,:,2) = sf(jp_top2)%fnow(:,:,1) |
|---|
| 797 | topmelt(:,:,3) = sf(jp_top3)%fnow(:,:,1) |
|---|
| 798 | topmelt(:,:,4) = sf(jp_top4)%fnow(:,:,1) |
|---|
| 799 | topmelt(:,:,5) = sf(jp_top5)%fnow(:,:,1) |
|---|
| 800 | botmelt(:,:,1) = sf(jp_bot1)%fnow(:,:,1) |
|---|
| 801 | botmelt(:,:,2) = sf(jp_bot2)%fnow(:,:,1) |
|---|
| 802 | botmelt(:,:,3) = sf(jp_bot3)%fnow(:,:,1) |
|---|
| 803 | botmelt(:,:,4) = sf(jp_bot4)%fnow(:,:,1) |
|---|
| 804 | botmelt(:,:,5) = sf(jp_bot5)%fnow(:,:,1) |
|---|
| 805 | |
|---|
| 806 | ! control print (if less than 100 time-step asked) |
|---|
| 807 | IF( nitend-nit000 <= 100 .AND. lwp ) THEN |
|---|
| 808 | WRITE(numout,*) |
|---|
| 809 | WRITE(numout,*) ' read forcing fluxes for CICE OK' |
|---|
| 810 | CALL FLUSH(numout) |
|---|
| 811 | ENDIF |
|---|
| 812 | |
|---|
| 813 | END SUBROUTINE cice_sbc_force |
|---|
| 814 | |
|---|
| 815 | SUBROUTINE nemo2cice( pn, pc, cd_type, psgn) |
|---|
| 816 | !!--------------------------------------------------------------------- |
|---|
| 817 | !! *** ROUTINE nemo2cice *** |
|---|
| 818 | !! ** Purpose : Transfer field in NEMO array to field in CICE array. |
|---|
| 819 | #if defined key_nemocice_decomp |
|---|
| 820 | !! |
|---|
| 821 | !! NEMO and CICE PE sub domains are identical, hence |
|---|
| 822 | !! there is no need to gather or scatter data from |
|---|
| 823 | !! one PE configuration to another. |
|---|
| 824 | #else |
|---|
| 825 | !! Automatically gather/scatter between |
|---|
| 826 | !! different processors and blocks |
|---|
| 827 | !! ** Method : A. Ensure all haloes are filled in NEMO field (pn) |
|---|
| 828 | !! B. Gather pn into global array (png) |
|---|
| 829 | !! C. Map png into CICE global array (pcg) |
|---|
| 830 | !! D. Scatter pcg to CICE blocks (pc) + update haloes |
|---|
| 831 | #endif |
|---|
| 832 | !!--------------------------------------------------------------------- |
|---|
| 833 | |
|---|
| 834 | CHARACTER(len=1), INTENT( in ) :: & |
|---|
| 835 | cd_type ! nature of pn grid-point |
|---|
| 836 | ! ! = T or F gridpoints |
|---|
| 837 | REAL(wp), INTENT( in ) :: & |
|---|
| 838 | psgn ! control of the sign change |
|---|
| 839 | ! ! =-1 , the sign is modified following the type of b.c. used |
|---|
| 840 | ! ! = 1 , no sign change |
|---|
| 841 | REAL(wp), DIMENSION(jpi,jpj) :: pn |
|---|
| 842 | #if !defined key_nemocice_decomp |
|---|
| 843 | REAL(wp), DIMENSION(jpiglo,jpjglo) :: png2 |
|---|
| 844 | REAL (kind=dbl_kind), dimension(nx_global,ny_global) :: pcg |
|---|
| 845 | #endif |
|---|
| 846 | REAL (kind=dbl_kind), dimension(nx_block,ny_block,max_blocks) :: pc |
|---|
| 847 | INTEGER (int_kind) :: & |
|---|
| 848 | field_type, &! id for type of field (scalar, vector, angle) |
|---|
| 849 | grid_loc ! id for location on horizontal grid |
|---|
| 850 | ! (center, NEcorner, Nface, Eface) |
|---|
| 851 | |
|---|
| 852 | INTEGER :: ji, jj, jn ! dummy loop indices |
|---|
| 853 | |
|---|
| 854 | ! A. Ensure all haloes are filled in NEMO field (pn) |
|---|
| 855 | |
|---|
| 856 | CALL lbc_lnk( pn , cd_type, psgn ) |
|---|
| 857 | |
|---|
| 858 | #if defined key_nemocice_decomp |
|---|
| 859 | |
|---|
| 860 | ! Copy local domain data from NEMO to CICE field |
|---|
| 861 | pc(:,:,1)=0.0 |
|---|
| 862 | DO jj=2,ny_block-1 |
|---|
| 863 | DO ji=2,nx_block-1 |
|---|
| 864 | pc(ji,jj,1)=pn(ji-1+ji_off,jj-1+jj_off) |
|---|
| 865 | ENDDO |
|---|
| 866 | ENDDO |
|---|
| 867 | |
|---|
| 868 | #else |
|---|
| 869 | |
|---|
| 870 | ! B. Gather pn into global array (png) |
|---|
| 871 | |
|---|
| 872 | IF ( jpnij > 1) THEN |
|---|
| 873 | CALL mppsync |
|---|
| 874 | CALL mppgather (pn,0,png) |
|---|
| 875 | CALL mppsync |
|---|
| 876 | ELSE |
|---|
| 877 | png(:,:,1)=pn(:,:) |
|---|
| 878 | ENDIF |
|---|
| 879 | |
|---|
| 880 | ! C. Map png into CICE global array (pcg) |
|---|
| 881 | |
|---|
| 882 | ! Need to make sure this is robust to changes in NEMO halo rows.... |
|---|
| 883 | ! (may be OK but not 100% sure) |
|---|
| 884 | |
|---|
| 885 | IF (nproc==0) THEN |
|---|
| 886 | ! pcg(:,:)=0.0 |
|---|
| 887 | DO jn=1,jpnij |
|---|
| 888 | DO jj=nldjt(jn),nlejt(jn) |
|---|
| 889 | DO ji=nldit(jn),nleit(jn) |
|---|
| 890 | png2(ji+nimppt(jn)-1,jj+njmppt(jn)-1)=png(ji,jj,jn) |
|---|
| 891 | ENDDO |
|---|
| 892 | ENDDO |
|---|
| 893 | ENDDO |
|---|
| 894 | DO jj=1,ny_global |
|---|
| 895 | DO ji=1,nx_global |
|---|
| 896 | pcg(ji,jj)=png2(ji+ji_off,jj+jj_off) |
|---|
| 897 | ENDDO |
|---|
| 898 | ENDDO |
|---|
| 899 | ENDIF |
|---|
| 900 | |
|---|
| 901 | #endif |
|---|
| 902 | |
|---|
| 903 | SELECT CASE ( cd_type ) |
|---|
| 904 | CASE ( 'T' ) |
|---|
| 905 | grid_loc=field_loc_center |
|---|
| 906 | CASE ( 'F' ) |
|---|
| 907 | grid_loc=field_loc_NEcorner |
|---|
| 908 | END SELECT |
|---|
| 909 | |
|---|
| 910 | SELECT CASE ( NINT(psgn) ) |
|---|
| 911 | CASE ( -1 ) |
|---|
| 912 | field_type=field_type_vector |
|---|
| 913 | CASE ( 1 ) |
|---|
| 914 | field_type=field_type_scalar |
|---|
| 915 | END SELECT |
|---|
| 916 | |
|---|
| 917 | #if defined key_nemocice_decomp |
|---|
| 918 | ! Ensure CICE halos are up to date |
|---|
| 919 | CALL ice_HaloUpdate (pc, halo_info, grid_loc, field_type) |
|---|
| 920 | #else |
|---|
| 921 | ! D. Scatter pcg to CICE blocks (pc) + update halos |
|---|
| 922 | CALL scatter_global(pc, pcg, 0, distrb_info, grid_loc, field_type) |
|---|
| 923 | #endif |
|---|
| 924 | |
|---|
| 925 | END SUBROUTINE nemo2cice |
|---|
| 926 | |
|---|
| 927 | SUBROUTINE cice2nemo ( pc, pn, cd_type, psgn ) |
|---|
| 928 | !!--------------------------------------------------------------------- |
|---|
| 929 | !! *** ROUTINE cice2nemo *** |
|---|
| 930 | !! ** Purpose : Transfer field in CICE array to field in NEMO array. |
|---|
| 931 | #if defined key_nemocice_decomp |
|---|
| 932 | !! |
|---|
| 933 | !! NEMO and CICE PE sub domains are identical, hence |
|---|
| 934 | !! there is no need to gather or scatter data from |
|---|
| 935 | !! one PE configuration to another. |
|---|
| 936 | #else |
|---|
| 937 | !! Automatically deal with scatter/gather between |
|---|
| 938 | !! different processors and blocks |
|---|
| 939 | !! ** Method : A. Gather CICE blocks (pc) into global array (pcg) |
|---|
| 940 | !! B. Map pcg into NEMO global array (png) |
|---|
| 941 | !! C. Scatter png into NEMO field (pn) for each processor |
|---|
| 942 | !! D. Ensure all haloes are filled in pn |
|---|
| 943 | #endif |
|---|
| 944 | !!--------------------------------------------------------------------- |
|---|
| 945 | |
|---|
| 946 | CHARACTER(len=1), INTENT( in ) :: & |
|---|
| 947 | cd_type ! nature of pn grid-point |
|---|
| 948 | ! ! = T or F gridpoints |
|---|
| 949 | REAL(wp), INTENT( in ) :: & |
|---|
| 950 | psgn ! control of the sign change |
|---|
| 951 | ! ! =-1 , the sign is modified following the type of b.c. used |
|---|
| 952 | ! ! = 1 , no sign change |
|---|
| 953 | REAL(wp), DIMENSION(jpi,jpj) :: pn |
|---|
| 954 | |
|---|
| 955 | #if defined key_nemocice_decomp |
|---|
| 956 | INTEGER (int_kind) :: & |
|---|
| 957 | field_type, & ! id for type of field (scalar, vector, angle) |
|---|
| 958 | grid_loc ! id for location on horizontal grid |
|---|
| 959 | ! (center, NEcorner, Nface, Eface) |
|---|
| 960 | #else |
|---|
| 961 | REAL (kind=dbl_kind), dimension(nx_global,ny_global) :: pcg |
|---|
| 962 | #endif |
|---|
| 963 | |
|---|
| 964 | REAL (kind=dbl_kind), dimension(nx_block,ny_block,max_blocks) :: pc |
|---|
| 965 | |
|---|
| 966 | INTEGER :: ji, jj, jn ! dummy loop indices |
|---|
| 967 | |
|---|
| 968 | |
|---|
| 969 | #if defined key_nemocice_decomp |
|---|
| 970 | |
|---|
| 971 | SELECT CASE ( cd_type ) |
|---|
| 972 | CASE ( 'T' ) |
|---|
| 973 | grid_loc=field_loc_center |
|---|
| 974 | CASE ( 'F' ) |
|---|
| 975 | grid_loc=field_loc_NEcorner |
|---|
| 976 | END SELECT |
|---|
| 977 | |
|---|
| 978 | SELECT CASE ( NINT(psgn) ) |
|---|
| 979 | CASE ( -1 ) |
|---|
| 980 | field_type=field_type_vector |
|---|
| 981 | CASE ( 1 ) |
|---|
| 982 | field_type=field_type_scalar |
|---|
| 983 | END SELECT |
|---|
| 984 | |
|---|
| 985 | CALL ice_HaloUpdate (pc, halo_info, grid_loc, field_type) |
|---|
| 986 | |
|---|
| 987 | |
|---|
| 988 | pn(:,:)=0.0 |
|---|
| 989 | DO jj=1,jpjm1 |
|---|
| 990 | DO ji=1,jpim1 |
|---|
| 991 | pn(ji,jj)=pc(ji+1-ji_off,jj+1-jj_off,1) |
|---|
| 992 | ENDDO |
|---|
| 993 | ENDDO |
|---|
| 994 | |
|---|
| 995 | #else |
|---|
| 996 | |
|---|
| 997 | ! A. Gather CICE blocks (pc) into global array (pcg) |
|---|
| 998 | |
|---|
| 999 | CALL gather_global(pcg, pc, 0, distrb_info) |
|---|
| 1000 | |
|---|
| 1001 | ! B. Map pcg into NEMO global array (png) |
|---|
| 1002 | |
|---|
| 1003 | ! Need to make sure this is robust to changes in NEMO halo rows.... |
|---|
| 1004 | ! (may be OK but not spent much time thinking about it) |
|---|
| 1005 | ! Note that non-existent pcg elements may be used below, but |
|---|
| 1006 | ! the lbclnk call on pn will replace these with sensible values |
|---|
| 1007 | |
|---|
| 1008 | IF (nproc==0) THEN |
|---|
| 1009 | png(:,:,:)=0.0 |
|---|
| 1010 | DO jn=1,jpnij |
|---|
| 1011 | DO jj=nldjt(jn),nlejt(jn) |
|---|
| 1012 | DO ji=nldit(jn),nleit(jn) |
|---|
| 1013 | png(ji,jj,jn)=pcg(ji+nimppt(jn)-1-ji_off,jj+njmppt(jn)-1-jj_off) |
|---|
| 1014 | ENDDO |
|---|
| 1015 | ENDDO |
|---|
| 1016 | ENDDO |
|---|
| 1017 | ENDIF |
|---|
| 1018 | |
|---|
| 1019 | ! C. Scatter png into NEMO field (pn) for each processor |
|---|
| 1020 | |
|---|
| 1021 | IF ( jpnij > 1) THEN |
|---|
| 1022 | CALL mppsync |
|---|
| 1023 | CALL mppscatter (png,0,pn) |
|---|
| 1024 | CALL mppsync |
|---|
| 1025 | ELSE |
|---|
| 1026 | pn(:,:)=png(:,:,1) |
|---|
| 1027 | ENDIF |
|---|
| 1028 | |
|---|
| 1029 | #endif |
|---|
| 1030 | |
|---|
| 1031 | ! D. Ensure all haloes are filled in pn |
|---|
| 1032 | |
|---|
| 1033 | CALL lbc_lnk( pn , cd_type, psgn ) |
|---|
| 1034 | |
|---|
| 1035 | END SUBROUTINE cice2nemo |
|---|
| 1036 | |
|---|
| 1037 | #else |
|---|
| 1038 | !!---------------------------------------------------------------------- |
|---|
| 1039 | !! Default option Dummy module NO CICE sea-ice model |
|---|
| 1040 | !!---------------------------------------------------------------------- |
|---|
| 1041 | CONTAINS |
|---|
| 1042 | |
|---|
| 1043 | SUBROUTINE sbc_ice_cice ( kt, nsbc ) ! Dummy routine |
|---|
| 1044 | WRITE(*,*) 'sbc_ice_cice: You should not have seen this print! error?', kt |
|---|
| 1045 | END SUBROUTINE sbc_ice_cice |
|---|
| 1046 | |
|---|
| 1047 | SUBROUTINE cice_sbc_init (nsbc) ! Dummy routine |
|---|
| 1048 | WRITE(*,*) 'cice_sbc_init: You should not have seen this print! error?' |
|---|
| 1049 | END SUBROUTINE cice_sbc_init |
|---|
| 1050 | |
|---|
| 1051 | SUBROUTINE cice_sbc_final ! Dummy routine |
|---|
| 1052 | WRITE(*,*) 'cice_sbc_final: You should not have seen this print! error?' |
|---|
| 1053 | END SUBROUTINE cice_sbc_final |
|---|
| 1054 | |
|---|
| 1055 | #endif |
|---|
| 1056 | |
|---|
| 1057 | !!====================================================================== |
|---|
| 1058 | END MODULE sbcice_cice |
|---|
