[6879] | 1 | MODULE zdfini |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE zdfini *** |
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| 4 | !! Ocean physics : read vertical mixing namelist and check consistancy |
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| 5 | !!====================================================================== |
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| 6 | !! History : 8.0 ! 1997-06 (G. Madec) Original code from inimix |
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| 7 | !! 1.0 ! 2002-08 (G. Madec) F90 : free form |
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| 8 | !! - ! 2005-06 (C. Ethe) KPP scheme |
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| 9 | !! - ! 2009-07 (G. Madec) add avmb, avtb in restart for cen2 advection |
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| 10 | !! 3.7 ! 2014-12 (G. Madec) remove KPP scheme |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | !! zdf_init : initialization, namelist read, and parameters control |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | USE par_oce ! mesh and scale factors |
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| 17 | USE zdf_oce ! TKE vertical mixing |
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| 18 | USE sbc_oce ! surface module (only for nn_isf in the option compatibility test) |
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| 19 | USE zdftke ! TKE vertical mixing |
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| 20 | USE zdfgls ! GLS vertical mixing |
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| 21 | USE zdfric ! Richardson vertical mixing |
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| 22 | USE zdfddm ! double diffusion mixing |
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| 23 | USE zdfevd ! enhanced vertical diffusion |
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| 24 | USE tranpc ! convection: non penetrative adjustment |
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| 25 | USE ldfslp ! iso-neutral slopes |
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| 26 | ! |
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| 27 | USE in_out_manager ! I/O manager |
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| 28 | USE iom ! IOM library |
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| 29 | USE lib_mpp ! distribued memory computing |
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| 30 | |
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| 31 | IMPLICIT NONE |
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| 32 | PRIVATE |
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| 33 | |
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| 34 | PUBLIC zdf_init ! routine called by opa.F90 |
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| 35 | |
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| 36 | !!---------------------------------------------------------------------- |
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| 37 | !! NEMO/OPA 4.0 , NEMO Consortium (2011) |
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| 38 | !! $Id: zdfini.F90 5836 2015-10-26 14:49:40Z cetlod $ |
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| 39 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 40 | !!---------------------------------------------------------------------- |
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| 41 | CONTAINS |
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| 42 | |
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| 43 | SUBROUTINE zdf_init |
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| 44 | !!---------------------------------------------------------------------- |
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| 45 | !! *** ROUTINE zdf_init *** |
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| 46 | !! |
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| 47 | !! ** Purpose : initializations of the vertical ocean physics |
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| 48 | !! |
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| 49 | !! ** Method : Read namelist namzdf, control logicals |
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| 50 | !!---------------------------------------------------------------------- |
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| 51 | INTEGER :: ioptio, ios ! local integers |
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| 52 | !! |
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| 53 | NAMELIST/namzdf/ rn_avm0, rn_avt0, nn_avb, nn_havtb, ln_zdfexp, nn_zdfexp, & |
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| 54 | & ln_zdfevd, nn_evdm, rn_avevd, ln_zdfnpc, nn_npc, nn_npcp |
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| 55 | !!---------------------------------------------------------------------- |
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| 56 | |
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| 57 | REWIND( numnam_ref ) ! Namelist namzdf in reference namelist : Vertical mixing parameters |
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| 58 | READ ( numnam_ref, namzdf, IOSTAT = ios, ERR = 901) |
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| 59 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namzdf in reference namelist', lwp ) |
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| 60 | |
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| 61 | REWIND( numnam_cfg ) ! Namelist namzdf in reference namelist : Vertical mixing parameters |
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| 62 | READ ( numnam_cfg, namzdf, IOSTAT = ios, ERR = 902 ) |
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| 63 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namzdf in configuration namelist', lwp ) |
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| 64 | IF(lwm) WRITE ( numond, namzdf ) |
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| 65 | |
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| 66 | IF(lwp) THEN !* Parameter print |
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| 67 | WRITE(numout,*) |
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| 68 | WRITE(numout,*) 'zdf_init: vertical physics' |
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| 69 | WRITE(numout,*) '~~~~~~~~' |
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| 70 | WRITE(numout,*) ' Namelist namzdf : set vertical mixing mixing parameters' |
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| 71 | WRITE(numout,*) ' vertical eddy viscosity rn_avm0 = ', rn_avm0 |
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| 72 | WRITE(numout,*) ' vertical eddy diffusivity rn_avt0 = ', rn_avt0 |
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| 73 | WRITE(numout,*) ' constant background or profile nn_avb = ', nn_avb |
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| 74 | WRITE(numout,*) ' horizontal variation for avtb nn_havtb = ', nn_havtb |
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| 75 | WRITE(numout,*) ' time splitting / backward scheme ln_zdfexp = ', ln_zdfexp |
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| 76 | WRITE(numout,*) ' number of time step nn_zdfexp = ', nn_zdfexp |
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| 77 | WRITE(numout,*) ' enhanced vertical diffusion ln_zdfevd = ', ln_zdfevd |
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| 78 | WRITE(numout,*) ' applied on momentum (=1/0) nn_evdm = ', nn_evdm |
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| 79 | WRITE(numout,*) ' vertical coefficient for evd rn_avevd = ', rn_avevd |
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| 80 | WRITE(numout,*) ' non-penetrative convection (npc) ln_zdfnpc = ', ln_zdfnpc |
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| 81 | WRITE(numout,*) ' npc call frequency nn_npc = ', nn_npc |
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| 82 | WRITE(numout,*) ' npc print frequency nn_npcp = ', nn_npcp |
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| 83 | ENDIF |
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| 84 | |
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| 85 | ! !* Parameter & logical controls |
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| 86 | ! ! ---------------------------- |
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| 87 | ! |
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| 88 | ! ! ... check of vertical mixing scheme on tracers |
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| 89 | ! ==> will be done in trazdf module |
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| 90 | ! |
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| 91 | ! ! ... check of mixing coefficient |
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| 92 | IF(lwp) WRITE(numout,*) |
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| 93 | IF(lwp) WRITE(numout,*) ' vertical mixing option :' |
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| 94 | ioptio = 0 |
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| 95 | IF( lk_zdfcst ) THEN |
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| 96 | IF(lwp) WRITE(numout,*) ' constant eddy diffusion coefficients' |
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| 97 | ioptio = ioptio+1 |
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| 98 | ENDIF |
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| 99 | IF( lk_zdfric ) THEN |
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| 100 | IF(lwp) WRITE(numout,*) ' Richardson dependent eddy coefficients' |
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| 101 | ioptio = ioptio+1 |
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| 102 | ENDIF |
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| 103 | IF( lk_zdftke ) THEN |
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| 104 | IF(lwp) WRITE(numout,*) ' TKE dependent eddy coefficients' |
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| 105 | ioptio = ioptio+1 |
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| 106 | ENDIF |
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| 107 | IF( lk_zdfgls ) THEN |
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| 108 | IF(lwp) WRITE(numout,*) ' GLS dependent eddy coefficients' |
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| 109 | ioptio = ioptio+1 |
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| 110 | ENDIF |
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| 111 | IF( ioptio == 0 .OR. ioptio > 1 ) & |
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| 112 | & CALL ctl_stop( ' one and only one vertical diffusion option has to be defined ' ) |
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| 113 | IF( ( lk_zdfric .OR. lk_zdfgls ) .AND. ln_isfcav ) & |
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| 114 | & CALL ctl_stop( ' only zdfcst and zdftke were tested with ice shelves cavities ' ) |
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| 115 | ! |
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| 116 | ! ! ... Convection |
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| 117 | IF(lwp) WRITE(numout,*) |
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| 118 | IF(lwp) WRITE(numout,*) ' convection :' |
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| 119 | ! |
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| 120 | #if defined key_top |
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| 121 | IF( ln_zdfnpc ) CALL ctl_stop( ' zdf_init: npc scheme is not working with key_top' ) |
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| 122 | #endif |
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| 123 | ! |
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| 124 | ioptio = 0 |
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| 125 | IF( ln_zdfnpc ) THEN |
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| 126 | IF(lwp) WRITE(numout,*) ' use non penetrative convective scheme' |
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| 127 | ioptio = ioptio+1 |
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| 128 | ENDIF |
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| 129 | IF( ln_zdfevd ) THEN |
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| 130 | IF(lwp) WRITE(numout,*) ' use enhanced vertical dif. scheme' |
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| 131 | ioptio = ioptio+1 |
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| 132 | ENDIF |
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| 133 | IF( lk_zdftke ) THEN |
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| 134 | IF(lwp) WRITE(numout,*) ' use the 1.5 turbulent closure' |
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| 135 | ENDIF |
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| 136 | IF( lk_zdfgls ) THEN |
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| 137 | IF(lwp) WRITE(numout,*) ' use the GLS closure scheme' |
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| 138 | ENDIF |
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| 139 | IF ( ioptio > 1 ) CALL ctl_stop( ' chose between ln_zdfnpc and ln_zdfevd' ) |
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| 140 | IF( ioptio == 0 .AND. .NOT.( lk_zdftke .OR. lk_zdfgls ) ) & |
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| 141 | !SF CALL ctl_stop( ' except for TKE or GLS physics, a convection scheme is', & |
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| 142 | CALL ctl_warn( ' except for TKE or GLS physics, a convection scheme is', & |
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| 143 | & ' required: ln_zdfevd or ln_zdfnpc logicals' ) |
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| 144 | |
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| 145 | ! !* Background eddy viscosity and diffusivity profil |
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| 146 | IF( nn_avb == 0 ) THEN ! Define avmb, avtb from namelist parameter |
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| 147 | avmb(:) = rn_avm0 |
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| 148 | avtb(:) = rn_avt0 |
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| 149 | ELSE ! Background profile of avt (fit a theoretical/observational profile (Krauss 1990) |
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| 150 | avmb(:) = rn_avm0 |
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| 151 | avtb(:) = rn_avt0 + ( 3.e-4_wp - 2._wp * rn_avt0 ) * 1.e-4_wp * gdepw_1d(:) ! m2/s |
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| 152 | IF(ln_sco .AND. lwp) CALL ctl_warn( 'avtb profile not valid in sco' ) |
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| 153 | ENDIF |
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| 154 | ! |
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| 155 | IF( ln_rstart ) THEN ! Read avmb, avtb in restart (if exist) |
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| 156 | ! if ln_traadv_cen, avmb, avtb have been modified in traadv_cen2 module. |
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| 157 | ! To ensure the restartability, avmb & avtb are written in the restart |
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| 158 | ! file in traadv_cen2 end read here. |
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| 159 | IF( iom_varid( numror, 'avmb', ldstop = .FALSE. ) > 0 ) THEN |
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| 160 | CALL iom_get( numror, jpdom_unknown, 'avmb', avmb ) |
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| 161 | CALL iom_get( numror, jpdom_unknown, 'avtb', avtb ) |
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| 162 | ENDIF |
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| 163 | ENDIF |
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| 164 | ! ! 2D shape of the avtb |
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| 165 | avtb_2d(:,:) = 1.e0 ! uniform |
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| 166 | ! |
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| 167 | IF( nn_havtb == 1 ) THEN ! decrease avtb in the equatorial band |
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| 168 | ! -15S -5S : linear decrease from avt0 to avt0/10. |
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| 169 | ! -5S +5N : cst value avt0/10. |
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| 170 | ! 5N 15N : linear increase from avt0/10, to avt0 |
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| 171 | WHERE(-15. <= gphit .AND. gphit < -5 ) avtb_2d = (1. - 0.09 * (gphit + 15.)) |
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| 172 | WHERE( -5. <= gphit .AND. gphit < 5 ) avtb_2d = 0.1 |
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| 173 | WHERE( 5. <= gphit .AND. gphit < 15 ) avtb_2d = (0.1 + 0.09 * (gphit - 5.)) |
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| 174 | ENDIF |
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| 175 | ! |
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| 176 | END SUBROUTINE zdf_init |
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| 177 | |
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| 178 | !!====================================================================== |
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| 179 | END MODULE zdfini |
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