- Timestamp:
- 2016-01-08T10:35:19+01:00 (8 years ago)
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branches/2014/dev_r4704_NOC5_MPP_BDY_UPDATE/NEMOGCM/NEMO/TOP_SRC/TRP/trcldf.F90
r3294 r6225 4 4 !! Ocean Passive tracers : lateral diffusive trends 5 5 !!===================================================================== 6 !! History : 9.0 ! 2005-11 (G. Madec) Original code 7 !! NEMO 3.0 ! 2008-01 (C. Ethe, G. Madec) merge TRC-TRA 6 !! History : 1.0 ! 2005-11 (G. Madec) Original code 7 !! 3.0 ! 2008-01 (C. Ethe, G. Madec) merge TRC-TRA 8 !! 3.7 ! 2014-03 (G. Madec) LDF simplification 8 9 !!---------------------------------------------------------------------- 9 10 #if defined key_top … … 11 12 !! 'key_top' TOP models 12 13 !!---------------------------------------------------------------------- 13 !!---------------------------------------------------------------------- 14 !! trc_ldf : update the tracer trend with the lateral diffusion 15 !! ldf_ctl : initialization, namelist read, and parameters control 16 !!---------------------------------------------------------------------- 17 USE oce_trc ! ocean dynamics and active tracers 18 USE trc ! ocean passive tracers variables 19 USE trcnam_trp ! passive tracers transport namelist variables 20 USE ldftra_oce ! lateral diffusion coefficient on tracers 21 USE ldfslp ! ??? 22 USE traldf_bilapg ! lateral mixing (tra_ldf_bilapg routine) 23 USE traldf_bilap ! lateral mixing (tra_ldf_bilap routine) 24 USE traldf_iso ! lateral mixing (tra_ldf_iso routine) 25 USE traldf_iso_grif ! lateral mixing (tra_ldf_iso_grif routine) 26 USE traldf_lap ! lateral mixing (tra_ldf_lap routine) 27 USE trdmod_oce 28 USE trdtra 29 USE prtctl_trc ! Print control 14 !! trc_ldf : update the tracer trend with the lateral diffusion 15 !! trc_ldf_ini : initialization, namelist read, and parameters control 16 !!---------------------------------------------------------------------- 17 USE trc ! ocean passive tracers variables 18 USE oce_trc ! ocean dynamics and active tracers 19 USE ldfslp ! lateral diffusion: iso-neutral slope 20 USE traldf_lap_blp ! lateral diffusion: lap/bilaplacian iso-level operator (tra_ldf_lap/_blp routine) 21 USE traldf_iso ! lateral diffusion: laplacian iso-neutral standard operator (tra_ldf_iso routine) 22 USE traldf_triad ! lateral diffusion: laplacian iso-neutral triad operator (tra_ldf_ triad routine) 23 USE trd_oce ! trends: ocean variables 24 USE trdtra ! trends manager: tracers 25 ! 26 USE prtctl_trc ! Print control 30 27 31 28 IMPLICIT NONE 32 29 PRIVATE 33 30 34 PUBLIC trc_ldf ! called by step.F90 35 ! !!: ** lateral mixing namelist (nam_trcldf) ** 36 REAL(wp) :: rldf_rat ! ratio between active and passive tracers diffusive coefficient 31 PUBLIC trc_ldf 32 PUBLIC trc_ldf_ini 33 ! 34 LOGICAL , PUBLIC :: ln_trcldf_lap !: laplacian operator 35 LOGICAL , PUBLIC :: ln_trcldf_blp !: bilaplacian operator 36 LOGICAL , PUBLIC :: ln_trcldf_lev !: iso-level direction 37 LOGICAL , PUBLIC :: ln_trcldf_hor !: horizontal direction (rotation to geopotential) 38 LOGICAL , PUBLIC :: ln_trcldf_iso !: iso-neutral direction (standard) 39 LOGICAL , PUBLIC :: ln_trcldf_triad !: iso-neutral direction (triad) 40 REAL(wp), PUBLIC :: rn_ahtrc_0 !: laplacian diffusivity coefficient for passive tracer [m2/s] 41 REAL(wp), PUBLIC :: rn_bhtrc_0 !: bilaplacian - -- - - [m4/s] 42 ! 43 ! !!: ** lateral mixing namelist (nam_trcldf) ** 44 REAL(wp) :: rldf ! ratio between active and passive tracers diffusive coefficient 45 37 46 INTEGER :: nldf = 0 ! type of lateral diffusion used defined from ln_trcldf_... namlist logicals) 47 38 48 !! * Substitutions 39 # include "domzgr_substitute.h90"40 49 # include "vectopt_loop_substitute.h90" 41 50 !!---------------------------------------------------------------------- 42 !! NEMO/TOP 3. 3 , NEMO Consortium (2010)51 !! NEMO/TOP 3.7 , NEMO Consortium (2014) 43 52 !! $Id$ 44 53 !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) 45 54 !!---------------------------------------------------------------------- 46 47 55 CONTAINS 48 56 … … 55 63 !!---------------------------------------------------------------------- 56 64 INTEGER, INTENT( in ) :: kt ! ocean time-step index 57 ! !65 ! 58 66 INTEGER :: jn 59 67 CHARACTER (len=22) :: charout 68 REAL(wp), POINTER, DIMENSION(:,:,:) :: zahu, zahv 60 69 REAL(wp), POINTER, DIMENSION(:,:,:,:) :: ztrtrd 61 70 !!---------------------------------------------------------------------- … … 63 72 IF( nn_timing == 1 ) CALL timing_start('trc_ldf') 64 73 ! 65 IF( kt == nittrc000 ) CALL ldf_ctl ! initialisation & control of options66 67 rldf = rldf_rat68 69 74 IF( l_trdtrc ) THEN 70 CALL wrk_alloc( jpi, jpj, jpk, jptra,ztrtrd )75 CALL wrk_alloc( jpi,jpj,jpk,jptra, ztrtrd ) 71 76 ztrtrd(:,:,:,:) = tra(:,:,:,:) 72 77 ENDIF 73 74 SELECT CASE ( nldf ) ! compute lateral mixing trend and add it to the general trend 75 CASE ( 0 ) ; CALL tra_ldf_lap ( kt, nittrc000, 'TRC', gtru, gtrv, trb, tra, jptra ) ! iso-level laplacian 76 CASE ( 1 ) ! rotated laplacian 77 IF( ln_traldf_grif ) THEN 78 CALL tra_ldf_iso_grif( kt, nittrc000, 'TRC', gtru, gtrv, trb, tra, jptra, rn_ahtb_0 ) 79 ELSE 80 CALL tra_ldf_iso ( kt, nittrc000, 'TRC', gtru, gtrv, trb, tra, jptra, rn_ahtb_0 ) 81 ENDIF 82 CASE ( 2 ) ; CALL tra_ldf_bilap ( kt, nittrc000, 'TRC', gtru, gtrv, trb, tra, jptra ) ! iso-level bilaplacian 83 CASE ( 3 ) ; CALL tra_ldf_bilapg( kt, nittrc000, 'TRC', trb, tra, jptra ) ! s-coord. horizontal bilaplacian 84 ! 85 CASE ( -1 ) ! esopa: test all possibility with control print 86 CALL tra_ldf_lap ( kt, nittrc000, 'TRC', gtru, gtrv, trb, tra, jptra ) 87 WRITE(charout, FMT="('ldf0 ')") ; CALL prt_ctl_trc_info(charout) 88 CALL prt_ctl_trc( tab4d=tra, mask=tmask, clinfo=ctrcnm, clinfo2='trd' ) 89 IF( ln_traldf_grif ) THEN 90 CALL tra_ldf_iso_grif( kt, nittrc000, 'TRC', gtru, gtrv, trb, tra, jptra, rn_ahtb_0 ) 91 ELSE 92 CALL tra_ldf_iso ( kt, nittrc000, 'TRC', gtru, gtrv, trb, tra, jptra, rn_ahtb_0 ) 93 ENDIF 94 WRITE(charout, FMT="('ldf1 ')") ; CALL prt_ctl_trc_info(charout) 95 CALL prt_ctl_trc( tab4d=tra, mask=tmask, clinfo=ctrcnm, clinfo2='trd' ) 96 CALL tra_ldf_bilap ( kt, nittrc000, 'TRC', gtru, gtrv, trb, tra, jptra ) 97 WRITE(charout, FMT="('ldf2 ')") ; CALL prt_ctl_trc_info(charout) 98 CALL prt_ctl_trc( tab4d=tra, mask=tmask, clinfo=ctrcnm, clinfo2='trd' ) 99 CALL tra_ldf_bilapg( kt, nittrc000, 'TRC', trb, tra, jptra ) 100 WRITE(charout, FMT="('ldf3 ')") ; CALL prt_ctl_trc_info(charout) 101 CALL prt_ctl_trc( tab4d=tra, mask=tmask, clinfo=ctrcnm, clinfo2='trd' ) 78 ! 79 ! !* set the lateral diffusivity coef. for passive tracer 80 CALL wrk_alloc( jpi,jpj,jpk, zahu, zahv ) 81 zahu(:,:,:) = rldf * ahtu(:,:,:) 82 zahv(:,:,:) = rldf * ahtv(:,:,:) 83 84 SELECT CASE ( nldf ) !* compute lateral mixing trend and add it to the general trend 85 ! 86 CASE ( np_lap ) ! iso-level laplacian 87 CALL tra_ldf_lap ( kt, nittrc000,'TRC', zahu, zahv, gtru, gtrv, gtrui, gtrvi, trb, tra, jptra, 1 ) 88 ! 89 CASE ( np_lap_i ) ! laplacian : standard iso-neutral operator (Madec) 90 CALL tra_ldf_iso ( kt, nittrc000,'TRC', zahu, zahv, gtru, gtrv, gtrui, gtrvi, trb, trb, tra, jptra, 1 ) 91 ! 92 CASE ( np_lap_it ) ! laplacian : triad iso-neutral operator (griffies) 93 CALL tra_ldf_triad( kt, nittrc000,'TRC', zahu, zahv, gtru, gtrv, gtrui, gtrvi, trb, trb, tra, jptra, 1 ) 94 ! 95 CASE ( np_blp , np_blp_i , np_blp_it ) ! bilaplacian: all operator (iso-level, -neutral) 96 CALL tra_ldf_blp ( kt, nittrc000,'TRC', zahu, zahv, gtru, gtrv, gtrui, gtrvi, trb , tra, jptra, nldf ) 97 ! 102 98 END SELECT 103 99 ! 104 IF( l_trdtrc ) THEN ! save the horizontal diffusive trends for further diagnostics100 IF( l_trdtrc ) THEN ! send the trends for further diagnostics 105 101 DO jn = 1, jptra 106 102 ztrtrd(:,:,:,jn) = tra(:,:,:,jn) - ztrtrd(:,:,:,jn) 107 CALL trd_tra( kt, 'TRC', jn, jptra_ trd_ldf, ztrtrd(:,:,:,jn) )103 CALL trd_tra( kt, 'TRC', jn, jptra_ldf, ztrtrd(:,:,:,jn) ) 108 104 END DO 109 105 CALL wrk_dealloc( jpi, jpj, jpk, jptra, ztrtrd ) 110 106 ENDIF 111 ! ! print mean trends (used for debugging) 112 IF( ln_ctl ) THEN 113 WRITE(charout, FMT="('ldf ')") ; CALL prt_ctl_trc_info(charout) 114 CALL prt_ctl_trc( tab4d=tra, mask=tmask, clinfo=ctrcnm, clinfo2='trd' ) 115 ENDIF 107 ! 108 IF( ln_ctl ) THEN ! print mean trends (used for debugging) 109 WRITE(charout, FMT="('ldf ')") 110 CALL prt_ctl_trc_info(charout) 111 CALL prt_ctl_trc( tab4d=tra, mask=tmask, clinfo=ctrcnm, clinfo2='trd' ) 112 ENDIF 113 ! 114 CALL wrk_dealloc( jpi,jpj,jpk, zahu, zahv ) 116 115 ! 117 116 IF( nn_timing == 1 ) CALL timing_stop('trc_ldf') … … 120 119 121 120 122 SUBROUTINE ldf_ctl121 SUBROUTINE trc_ldf_ini 123 122 !!---------------------------------------------------------------------- 124 123 !! *** ROUTINE ldf_ctl *** 125 124 !! 126 !! ** Purpose : Choice of the operator for the lateral tracerdiffusion125 !! ** Purpose : Define the operator for the lateral diffusion 127 126 !! 128 127 !! ** Method : set nldf from the namtra_ldf logicals 129 !! nldf == -2 No lateral diffusion130 !! nldf == -1 ESOPA test: ALL operators are used131 128 !! nldf == 0 laplacian operator 132 129 !! nldf == 1 Rotated laplacian operator … … 134 131 !! nldf == 3 Rotated bilaplacian 135 132 !!---------------------------------------------------------------------- 136 INTEGER :: ioptio, ierr ! temporary integers 137 !!---------------------------------------------------------------------- 138 139 IF (ABS(rn_aht_0) < 2._wp*TINY(1.e0)) THEN 140 IF (ABS(rn_ahtrc_0) < 2._wp*TINY(1.e0)) THEN 141 rldf_rat = 1.0_wp 142 ELSE 143 CALL ctl_stop( 'STOP', 'ldf_ctl : cannot define rldf_rat, rn_aht_0==0, rn_ahtrc_0 /=0' ) 144 END IF 145 ELSE 146 rldf_rat = rn_ahtrc_0 / rn_aht_0 147 END IF 148 ! Define the lateral mixing oparator for tracers 149 ! =============================================== 150 151 ! ! control the input 133 INTEGER :: ioptio, ierr ! temporary integers 134 INTEGER :: ios ! Local integer output status for namelist read 135 !! 136 NAMELIST/namtrc_ldf/ ln_trcldf_lap, ln_trcldf_blp, & 137 & ln_trcldf_lev, ln_trcldf_hor, ln_trcldf_iso, ln_trcldf_triad, & 138 & rn_ahtrc_0 , rn_bhtrc_0 139 !!---------------------------------------------------------------------- 140 ! 141 REWIND( numnat_ref ) ! namtrc_ldf in reference namelist 142 READ ( numnat_ref, namtrc_ldf, IOSTAT = ios, ERR = 903) 143 903 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namtrc_ldf in reference namelist', lwp ) 144 ! 145 REWIND( numnat_cfg ) ! namtrc_ldf in configuration namelist 146 READ ( numnat_cfg, namtrc_ldf, IOSTAT = ios, ERR = 904 ) 147 904 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namtrc_ldf in configuration namelist', lwp ) 148 IF(lwm) WRITE ( numont, namtrc_ldf ) 149 ! 150 IF(lwp) THEN ! Namelist print 151 WRITE(numout,*) 152 WRITE(numout,*) 'trc_ldf_ini : lateral tracer diffusive operator' 153 WRITE(numout,*) '~~~~~~~~~~~' 154 WRITE(numout,*) ' Namelist namtrc_ldf : set lateral mixing parameters (type, direction, coefficients)' 155 WRITE(numout,*) ' operator' 156 WRITE(numout,*) ' laplacian ln_trcldf_lap = ', ln_trcldf_lap 157 WRITE(numout,*) ' bilaplacian ln_trcldf_blp = ', ln_trcldf_blp 158 WRITE(numout,*) ' direction of action' 159 WRITE(numout,*) ' iso-level ln_trcldf_lev = ', ln_trcldf_lev 160 WRITE(numout,*) ' horizontal (geopotential) ln_trcldf_hor = ', ln_trcldf_hor 161 WRITE(numout,*) ' iso-neutral (standard) ln_trcldf_iso = ', ln_trcldf_iso 162 WRITE(numout,*) ' iso-neutral (triad) ln_trcldf_triad = ', ln_trcldf_triad 163 WRITE(numout,*) ' diffusivity coefficient' 164 WRITE(numout,*) ' laplacian rn_ahtrc_0 = ', rn_ahtrc_0 165 WRITE(numout,*) ' bilaplacian rn_bhtrc_0 = ', rn_bhtrc_0 166 ENDIF 167 ! 168 ! ! control the namelist parameters 152 169 ioptio = 0 153 IF( ln_trcldf_lap ) ioptio = ioptio + 1 154 IF( ln_trcldf_bilap ) ioptio = ioptio + 1 155 IF( ioptio > 1 ) CALL ctl_stop( ' use ONE or NONE of the 2 lap/bilap operator type on tracer' ) 156 IF( ioptio == 0 ) nldf = -2 ! No lateral diffusion 170 IF( ln_trcldf_lap ) ioptio = ioptio + 1 171 IF( ln_trcldf_blp ) ioptio = ioptio + 1 172 IF( ioptio > 1 ) CALL ctl_stop( 'trc_ldf_ctl: use ONE or NONE of the 2 lap/bilap operator type on tracer' ) 173 IF( ioptio == 0 ) nldf = np_no_ldf ! No lateral diffusion 174 175 IF( ln_trcldf_lap .AND. ln_trcldf_blp ) CALL ctl_stop( 'trc_ldf_ctl: bilaplacian should be used on both TRC and TRA' ) 176 IF( ln_trcldf_blp .AND. ln_trcldf_lap ) CALL ctl_stop( 'trc_ldf_ctl: laplacian should be used on both TRC and TRA' ) 177 ! 157 178 ioptio = 0 158 IF( ln_trcldf_lev el) ioptio = ioptio + 1159 IF( ln_trcldf_hor 160 IF( ln_trcldf_iso 161 IF( ioptio /= 1 ) CALL ctl_stop( 'use only ONE direction (level/hor/iso)' )162 179 IF( ln_trcldf_lev ) ioptio = ioptio + 1 180 IF( ln_trcldf_hor ) ioptio = ioptio + 1 181 IF( ln_trcldf_iso ) ioptio = ioptio + 1 182 IF( ioptio /= 1 ) CALL ctl_stop( 'trc_ldf_ctl: use only ONE direction (level/hor/iso)' ) 183 ! 163 184 ! defined the type of lateral diffusion from ln_trcldf_... logicals 164 185 ! CAUTION : nldf = 1 is used in trazdf_imp, change it carefully 165 186 ierr = 0 166 IF( ln_trcldf_lap ) THEN ! laplacian operator187 IF( ln_trcldf_lap ) THEN !== laplacian operator ==! 167 188 IF ( ln_zco ) THEN ! z-coordinate 168 IF ( ln_trcldf_level ) nldf = 0 ! iso-level (no rotation) 169 IF ( ln_trcldf_hor ) nldf = 0 ! horizontal (no rotation) 170 IF ( ln_trcldf_iso ) nldf = 1 ! isoneutral ( rotation) 171 ENDIF 172 IF ( ln_zps ) THEN ! z-coordinate 173 IF ( ln_trcldf_level ) ierr = 1 ! iso-level not allowed 174 IF ( ln_trcldf_hor ) nldf = 0 ! horizontal (no rotation) 175 IF ( ln_trcldf_iso ) nldf = 1 ! isoneutral ( rotation) 176 ENDIF 177 IF ( ln_sco ) THEN ! z-coordinate 178 IF ( ln_trcldf_level ) nldf = 0 ! iso-level (no rotation) 179 IF ( ln_trcldf_hor ) nldf = 1 ! horizontal ( rotation) 180 IF ( ln_trcldf_iso ) nldf = 1 ! isoneutral ( rotation) 181 ENDIF 182 ENDIF 183 184 IF( ln_trcldf_bilap ) THEN ! bilaplacian operator 189 IF ( ln_trcldf_lev ) nldf = np_lap ! iso-level = horizontal (no rotation) 190 IF ( ln_trcldf_hor ) nldf = np_lap ! iso-level = horizontal (no rotation) 191 IF ( ln_trcldf_iso ) nldf = np_lap_i ! iso-neutral: standard ( rotation) 192 IF ( ln_trcldf_triad ) nldf = np_lap_it ! iso-neutral: triad ( rotation) 193 ENDIF 194 IF ( ln_zps ) THEN ! z-coordinate with partial step 195 IF ( ln_trcldf_lev ) ierr = 1 ! iso-level not allowed 196 IF ( ln_trcldf_hor ) nldf = np_lap ! horizontal (no rotation) 197 IF ( ln_trcldf_iso ) nldf = np_lap_i ! iso-neutral: standard (rotation) 198 IF ( ln_trcldf_triad ) nldf = np_lap_it ! iso-neutral: triad (rotation) 199 ENDIF 200 IF ( ln_sco ) THEN ! s-coordinate 201 IF ( ln_trcldf_lev ) nldf = np_lap ! iso-level (no rotation) 202 IF ( ln_trcldf_hor ) nldf = np_lap_it ! horizontal ( rotation) !!gm a checker.... 203 IF ( ln_trcldf_iso ) nldf = np_lap_i ! iso-neutral: standard (rotation) 204 IF ( ln_trcldf_triad ) nldf = np_lap_it ! iso-neutral: triad (rotation) 205 ENDIF 206 ! ! diffusivity ratio: passive / active tracers 207 IF( ABS(rn_aht_0) < 2._wp*TINY(1._wp) ) THEN 208 IF( ABS(rn_ahtrc_0) < 2._wp*TINY(1._wp) ) THEN 209 rldf = 1.0_wp 210 ELSE 211 CALL ctl_stop( 'trc_ldf_ctl : cannot define rldf, rn_aht_0==0, rn_ahtrc_0 /=0' ) 212 ENDIF 213 ELSE 214 rldf = rn_ahtrc_0 / rn_aht_0 215 ENDIF 216 ENDIF 217 ! 218 IF( ln_trcldf_blp ) THEN !== bilaplacian operator ==! 185 219 IF ( ln_zco ) THEN ! z-coordinate 186 IF ( ln_trcldf_level ) nldf = 2 ! iso-level (no rotation) 187 IF ( ln_trcldf_hor ) nldf = 2 ! horizontal (no rotation) 188 IF ( ln_trcldf_iso ) ierr = 2 ! isoneutral ( rotation) 189 ENDIF 190 IF ( ln_zps ) THEN ! z-coordinate 191 IF ( ln_trcldf_level ) ierr = 1 ! iso-level not allowed 192 IF ( ln_trcldf_hor ) nldf = 2 ! horizontal (no rotation) 193 IF ( ln_trcldf_iso ) ierr = 2 ! isoneutral ( rotation) 194 ENDIF 195 IF ( ln_sco ) THEN ! z-coordinate 196 IF ( ln_trcldf_level ) nldf = 2 ! iso-level (no rotation) 197 IF ( ln_trcldf_hor ) nldf = 3 ! horizontal ( rotation) 198 IF ( ln_trcldf_iso ) ierr = 2 ! isoneutral ( rotation) 199 ENDIF 200 ENDIF 201 202 IF( ierr == 1 ) CALL ctl_stop( ' iso-level in z-coordinate - partial step, not allowed' ) 203 IF( ierr == 2 ) CALL ctl_stop( ' isoneutral bilaplacian operator does not exist' ) 204 IF( lk_traldf_eiv .AND. .NOT.ln_trcldf_iso ) & 205 CALL ctl_stop( ' eddy induced velocity on tracers', & 206 & ' the eddy induced velocity on tracers requires isopycnal laplacian diffusion' ) 207 IF( nldf == 1 .OR. nldf == 3 ) THEN ! rotation 208 IF( .NOT.lk_ldfslp ) CALL ctl_stop( ' the rotation of the diffusive tensor require key_ldfslp' ) 209 #if defined key_offline 210 l_traldf_rot = .TRUE. ! needed for trazdf_imp 211 #endif 212 ENDIF 213 214 IF( lk_esopa ) THEN 215 IF(lwp) WRITE(numout,*) ' esopa control: use all lateral physics options' 216 nldf = -1 217 ENDIF 218 219 IF( .NOT. ln_trcldf_diff ) THEN 220 IF(lwp) WRITE(numout,*) ' No lateral diffusion on passive tracers' 221 nldf = -2 222 ENDIF 223 220 IF ( ln_trcldf_lev ) nldf = np_blp ! iso-level = horizontal (no rotation) 221 IF ( ln_trcldf_hor ) nldf = np_blp ! iso-level = horizontal (no rotation) 222 IF ( ln_trcldf_iso ) nldf = np_blp_i ! iso-neutral: standard (rotation) 223 IF ( ln_trcldf_triad ) nldf = np_blp_it ! iso-neutral: triad (rotation) 224 ENDIF 225 IF ( ln_zps ) THEN ! z-coordinate with partial step 226 IF ( ln_trcldf_lev ) ierr = 1 ! iso-level not allowed 227 IF ( ln_trcldf_hor ) nldf = np_blp ! horizontal (no rotation) 228 IF ( ln_trcldf_iso ) nldf = np_blp_i ! iso-neutral: standard (rotation) 229 IF ( ln_trcldf_triad ) nldf = np_blp_it ! iso-neutral: triad (rotation) 230 ENDIF 231 IF ( ln_sco ) THEN ! s-coordinate 232 IF ( ln_trcldf_lev ) nldf = np_blp ! iso-level (no rotation) 233 IF ( ln_trcldf_hor ) nldf = np_blp_it ! horizontal ( rotation) !!gm a checker.... 234 IF ( ln_trcldf_iso ) nldf = np_blp_i ! iso-neutral: standard (rotation) 235 IF ( ln_trcldf_triad ) nldf = np_blp_it ! iso-neutral: triad (rotation) 236 ENDIF 237 ! ! diffusivity ratio: passive / active tracers 238 IF( ABS(rn_bht_0) < 2._wp*TINY(1._wp) ) THEN 239 IF( ABS(rn_bhtrc_0) < 2._wp*TINY(1._wp) ) THEN 240 rldf = 1.0_wp 241 ELSE 242 CALL ctl_stop( 'trc_ldf_ctl : cannot define rldf, rn_aht_0==0, rn_ahtrc_0 /=0' ) 243 ENDIF 244 ELSE 245 rldf = SQRT( ABS( rn_bhtrc_0 / rn_bht_0 ) ) 246 ENDIF 247 ENDIF 248 ! 249 IF( ierr == 1 ) CALL ctl_stop( 'trc_ldf_ctl: iso-level in z-partial step, not allowed' ) 250 IF( ln_ldfeiv .AND. .NOT.ln_trcldf_iso ) CALL ctl_stop( 'trc_ldf_ctl: eiv requires isopycnal laplacian diffusion' ) 251 IF( nldf == 1 .OR. nldf == 3 ) l_ldfslp = .TRUE. ! slope of neutral surfaces required 252 ! 224 253 IF(lwp) THEN 225 254 WRITE(numout,*) 226 IF( nldf == -2 ) WRITE(numout,*) ' NO lateral diffusion' 227 IF( nldf == -1 ) WRITE(numout,*) ' ESOPA test All scheme used' 228 IF( nldf == 0 ) WRITE(numout,*) ' laplacian operator' 229 IF( nldf == 1 ) WRITE(numout,*) ' Rotated laplacian operator' 230 IF( nldf == 2 ) WRITE(numout,*) ' bilaplacian operator' 231 IF( nldf == 3 ) WRITE(numout,*) ' Rotated bilaplacian' 232 ENDIF 233 234 IF( ln_trcldf_bilap ) THEN 235 IF(lwp) WRITE(numout,*) ' biharmonic tracer diffusion' 236 IF( rn_ahtrc_0 > 0 .AND. .NOT. lk_esopa ) CALL ctl_stop( 'The horizontal diffusivity coef. rn_ahtrc_0 must be negative' ) 237 ELSE 238 IF(lwp) WRITE(numout,*) ' harmonic tracer diffusion (default)' 239 IF( rn_ahtrc_0 < 0 .AND. .NOT. lk_esopa ) CALL ctl_stop('The horizontal diffusivity coef. rn_ahtrc_0 must be positive' ) 240 ENDIF 241 242 ! ratio between active and passive tracers diffusive coef. 243 IF (ABS(rn_aht_0) < 2._wp*TINY(1.e0)) THEN 244 IF (ABS(rn_ahtrc_0) < 2._wp*TINY(1.e0)) THEN 245 rldf_rat = 1.0_wp 246 ELSE 247 CALL ctl_stop( 'STOP', 'ldf_ctl : cannot define rldf_rat, rn_aht_0==0, rn_ahtrc_0 /=0' ) 248 END IF 249 ELSE 250 rldf_rat = rn_ahtrc_0 / rn_aht_0 251 END IF 252 IF( rldf_rat < 0 ) THEN 253 IF( .NOT.lk_offline ) THEN 254 CALL ctl_stop( 'Choose the same type of diffusive scheme both for active & passive tracers' ) 255 ELSE 256 CALL ctl_stop( 'Change the sign of rn_aht_0 in namelist to -/+1' ) 257 ENDIF 258 ENDIF 259 ! 260 END SUBROUTINE ldf_ctl 255 SELECT CASE( nldf ) 256 CASE( np_no_ldf ) ; WRITE(numout,*) ' NO lateral diffusion' 257 CASE( np_lap ) ; WRITE(numout,*) ' laplacian iso-level operator' 258 CASE( np_lap_i ) ; WRITE(numout,*) ' Rotated laplacian operator (standard)' 259 CASE( np_lap_it ) ; WRITE(numout,*) ' Rotated laplacian operator (triad)' 260 CASE( np_blp ) ; WRITE(numout,*) ' bilaplacian iso-level operator' 261 CASE( np_blp_i ) ; WRITE(numout,*) ' Rotated bilaplacian operator (standard)' 262 CASE( np_blp_it ) ; WRITE(numout,*) ' Rotated bilaplacian operator (triad)' 263 END SELECT 264 ENDIF 265 ! 266 END SUBROUTINE trc_ldf_ini 261 267 #else 262 268 !!----------------------------------------------------------------------
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