- Timestamp:
- 2018-04-23T10:44:07+02:00 (6 years ago)
- File:
-
- 1 edited
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branches/2017/dev_merge_2017/NEMOGCM/NEMO/TOP_SRC/TRP/trcldf.F90
r9169 r9490 33 33 PUBLIC trc_ldf_ini 34 34 ! 35 LOGICAL , PUBLIC :: ln_trcldf_NONE !: No operator (no explicit lateral diffusion) 36 LOGICAL , PUBLIC :: ln_trcldf_lap !: laplacian operator 37 LOGICAL , PUBLIC :: ln_trcldf_blp !: bilaplacian operator 38 LOGICAL , PUBLIC :: ln_trcldf_lev !: iso-level direction 39 LOGICAL , PUBLIC :: ln_trcldf_hor !: horizontal direction (rotation to geopotential) 40 LOGICAL , PUBLIC :: ln_trcldf_iso !: iso-neutral direction (standard) 41 LOGICAL , PUBLIC :: ln_trcldf_triad !: iso-neutral direction (triad) 42 REAL(wp), PUBLIC :: rn_ahtrc_0 !: laplacian diffusivity coefficient for passive tracer [m2/s] 43 REAL(wp), PUBLIC :: rn_bhtrc_0 !: bilaplacian - -- - - [m4/s] 44 REAL(wp), PUBLIC :: rn_fact_lap !: Enhanced zonal diffusivity coefficent in the equatorial domain 35 ! !!: ** lateral mixing namelist (nam_trcldf) ** 36 LOGICAL , PUBLIC :: ln_trcldf_NONE !: No operator (no explicit lateral diffusion) 37 LOGICAL , PUBLIC :: ln_trcldf_tra !: use active tracer operator 38 REAL(wp), PUBLIC :: rn_ldf_multi !: multiplier of T-S eddy diffusivity to obtain the passive tracer one 39 REAL(wp), PUBLIC :: rn_fact_lap !: enhanced Equatorial zonal diffusivity coefficent 45 40 ! 46 ! !!: ** lateral mixing namelist (nam_trcldf) ** 47 REAL(wp) :: rldf ! ratio between active and passive tracers diffusive coefficient 48 49 INTEGER :: nldf ! type of lateral diffusion used defined from ln_trcldf_... namlist logicals) 41 INTEGER :: nldf_trc = 0 ! type of lateral diffusion used defined from ln_traldf_... (namlist logicals) 42 REAL(wp) :: rldf ! multiplier between active and passive tracers eddy diffusivity [-] 50 43 51 44 !! * Substitutions … … 74 67 !!---------------------------------------------------------------------- 75 68 ! 69 IF( ln_trcldf_NONE ) RETURN ! not lateral diffusion applied on passive tracers 70 ! 76 71 IF( ln_timing ) CALL timing_start('trc_ldf') 77 72 ! … … 95 90 END DO 96 91 ! 97 SELECT CASE ( nldf )!* compute lateral mixing trend and add it to the general trend92 SELECT CASE ( nldf_trc ) !* compute lateral mixing trend and add it to the general trend 98 93 ! 99 94 CASE ( np_lap ) ! iso-level laplacian 100 CALL tra_ldf_lap ( kt, nittrc000,'TRC', zahu, zahv, gtru, gtrv, gtrui, gtrvi, trb, tra, jptra, 1)95 CALL tra_ldf_lap ( kt, nittrc000,'TRC', zahu, zahv, gtru, gtrv, gtrui, gtrvi, trb, tra, jptra, 1 ) 101 96 CASE ( np_lap_i ) ! laplacian : standard iso-neutral operator (Madec) 102 CALL tra_ldf_iso ( kt, nittrc000,'TRC', zahu, zahv, gtru, gtrv, gtrui, gtrvi, trb, trb, tra, jptra, 1)97 CALL tra_ldf_iso ( kt, nittrc000,'TRC', zahu, zahv, gtru, gtrv, gtrui, gtrvi, trb, trb, tra, jptra, 1 ) 103 98 CASE ( np_lap_it ) ! laplacian : triad iso-neutral operator (griffies) 104 CALL tra_ldf_triad( kt, nittrc000,'TRC', zahu, zahv, gtru, gtrv, gtrui, gtrvi, trb, trb, tra, jptra, 1)99 CALL tra_ldf_triad( kt, nittrc000,'TRC', zahu, zahv, gtru, gtrv, gtrui, gtrvi, trb, trb, tra, jptra, 1 ) 105 100 CASE ( np_blp , np_blp_i , np_blp_it ) ! bilaplacian: all operator (iso-level, -neutral) 106 CALL tra_ldf_blp ( kt, nittrc000,'TRC', zahu, zahv, gtru, gtrv, gtrui, gtrvi, trb , tra, jptra, nldf )101 CALL tra_ldf_blp ( kt, nittrc000,'TRC', zahu, zahv, gtru, gtrv, gtrui, gtrvi, trb , tra, jptra, nldf_trc ) 107 102 END SELECT 108 103 ! … … 132 127 !! ** Purpose : Define the operator for the lateral diffusion 133 128 !! 134 !! ** Method : set nldf from the namtra_ldf logicals 135 !! nldf == 0 laplacian operator 136 !! nldf == 1 Rotated laplacian operator 137 !! nldf == 2 bilaplacian operator 138 !! nldf == 3 Rotated bilaplacian 129 !! ** Method : - ln_trcldf_tra =T : use nldf_tra set in ldftra module 130 !! to defined the passive tracer lateral diffusive operator 131 !! - ln_trcldf_NONE=T : no explicit diffusion used 139 132 !!---------------------------------------------------------------------- 140 INTEGER :: ioptio, ierr ! temporary integers 141 INTEGER :: ios ! Local integer output status for namelist read 133 INTEGER :: ios, ioptio ! local integers 142 134 !! 143 NAMELIST/namtrc_ldf/ ln_trcldf_lap, ln_trcldf_blp, & 144 & ln_trcldf_lev, ln_trcldf_hor, ln_trcldf_iso, ln_trcldf_triad, & 145 & rn_ahtrc_0 , rn_bhtrc_0 , rn_fact_lap 135 NAMELIST/namtrc_ldf/ ln_trcldf_NONE, ln_trcldf_tra, & ! operator & direction 136 & rn_ldf_multi , rn_fact_lap ! coefficient 146 137 !!---------------------------------------------------------------------- 138 ! 139 IF(lwp) THEN 140 WRITE(numout,*) 141 WRITE(numout,*) 'trc_ldf_ini : lateral passive tracer diffusive operator' 142 WRITE(numout,*) '~~~~~~~~~~~' 143 ENDIF 147 144 ! 148 145 REWIND( numnat_ref ) ! namtrc_ldf in reference namelist … … 156 153 ! 157 154 IF(lwp) THEN ! Namelist print 158 WRITE(numout,*)159 WRITE(numout,*) 'trc_ldf_ini : lateral tracer diffusive operator'160 WRITE(numout,*) '~~~~~~~~~~~'161 155 WRITE(numout,*) ' Namelist namtrc_ldf : set lateral mixing parameters (type, direction, coefficients)' 162 WRITE(numout,*) ' operator' 163 WRITE(numout,*) ' no explicit diffusion ln_trcldf_NONE = ', ln_trcldf_NONE 164 WRITE(numout,*) ' laplacian ln_trcldf_lap = ', ln_trcldf_lap 165 WRITE(numout,*) ' bilaplacian ln_trcldf_blp = ', ln_trcldf_blp 166 WRITE(numout,*) ' direction of action' 167 WRITE(numout,*) ' iso-level ln_trcldf_lev = ', ln_trcldf_lev 168 WRITE(numout,*) ' horizontal (geopotential) ln_trcldf_hor = ', ln_trcldf_hor 169 WRITE(numout,*) ' iso-neutral (standard) ln_trcldf_iso = ', ln_trcldf_iso 170 WRITE(numout,*) ' iso-neutral (triad) ln_trcldf_triad = ', ln_trcldf_triad 171 WRITE(numout,*) ' diffusivity coefficient' 172 WRITE(numout,*) ' laplacian rn_ahtrc_0 = ', rn_ahtrc_0 173 WRITE(numout,*) ' bilaplacian rn_bhtrc_0 = ', rn_bhtrc_0 174 WRITE(numout,*) ' enhanced zonal diffusivity rn_fact_lap = ', rn_fact_lap 156 WRITE(numout,*) ' no explicit diffusion ln_trcldf_NONE = ', ln_trcldf_NONE 157 WRITE(numout,*) ' use active tracer operator ln_trcldf_tra = ', ln_trcldf_tra 158 WRITE(numout,*) ' diffusivity coefficient :' 159 WRITE(numout,*) ' multiplier of TRA coef. for TRC rn_ldf_multi = ', rn_ldf_multi 160 WRITE(numout,*) ' enhanced zonal Eq. laplacian coef. rn_fact_lap = ', rn_fact_lap 175 161 176 162 ENDIF 177 163 ! 178 164 ! ! control the namelist parameters 179 ioptio = 0180 IF( ln_trcldf_NONE ) THEN ; nldf = np_no_ldf ; ioptio = ioptio + 1 ; ENDIF181 IF( ln_trcldf_ lap ) THEN ;ioptio = ioptio + 1 ; ENDIF182 IF( ln_trcldf_ blp ) THEN ;ioptio = ioptio + 1 ; ENDIF183 IF( ioptio /= 1 ) CALL ctl_stop( 'trc_ldf_ini: use ONE of the 3 operator options (NONE/lap/blp)' )165 nldf_trc = np_ERROR 166 ioptio = 0 167 IF( ln_trcldf_NONE ) THEN ; nldf_trc = np_no_ldf ; ioptio = ioptio + 1 ; ENDIF 168 IF( ln_trcldf_tra ) THEN ; nldf_trc = nldf_tra ; ioptio = ioptio + 1 ; ENDIF 169 IF( ioptio /= 1 ) CALL ctl_stop( 'trc_ldf_ini: use ONE of the 2 operator options (NONE/tra)' ) 184 170 185 IF( ln_trcldf_lap .AND. .NOT.ln_traldf_lap ) CALL ctl_stop( 'trc_ldf_ini: laplacian should be used on both TRC and TRA' ) 186 IF( ln_trcldf_blp .AND. .NOT.ln_traldf_blp ) CALL ctl_stop( 'trc_ldf_ini: bilaplacian should be used on both TRC and TRA' ) 187 ! 188 IF( .NOT.ln_trcldf_NONE ) THEN ! direction ==>> type of operator 189 ioptio = 0 190 IF( ln_trcldf_lev ) ioptio = ioptio + 1 191 IF( ln_trcldf_hor ) ioptio = ioptio + 1 192 IF( ln_trcldf_iso ) ioptio = ioptio + 1 193 IF( ioptio /= 1 ) CALL ctl_stop( 'trc_ldf_ini: use ONE direction (level/hor/iso)' ) 194 ! 195 ! defined the type of lateral diffusion from ln_trcldf_... logicals 196 ! CAUTION : nldf = 1 is used in trazdf_imp, change it carefully 197 ierr = 0 198 IF( ln_trcldf_lap ) THEN !== laplacian operator ==! 199 IF( ln_zco ) THEN ! z-coordinate 200 IF( ln_trcldf_lev ) nldf = np_lap ! iso-level = horizontal (no rotation) 201 IF( ln_trcldf_hor ) nldf = np_lap ! iso-level = horizontal (no rotation) 202 IF( ln_trcldf_iso ) nldf = np_lap_i ! iso-neutral: standard ( rotation) 203 IF( ln_trcldf_triad ) nldf = np_lap_it ! iso-neutral: triad ( rotation) 204 ENDIF 205 IF( ln_zps ) THEN ! z-coordinate with partial step 206 IF( ln_trcldf_lev ) ierr = 1 ! iso-level not allowed 207 IF( ln_trcldf_hor ) nldf = np_lap ! horizontal (no rotation) 208 IF( ln_trcldf_iso ) nldf = np_lap_i ! iso-neutral: standard (rotation) 209 IF( ln_trcldf_triad ) nldf = np_lap_it ! iso-neutral: triad (rotation) 210 ENDIF 211 IF( ln_sco ) THEN ! s-coordinate 212 IF( ln_trcldf_lev ) nldf = np_lap ! iso-level (no rotation) 213 IF( ln_trcldf_hor ) nldf = np_lap_it ! horizontal ( rotation) !!gm a checker.... 214 IF( ln_trcldf_iso ) nldf = np_lap_i ! iso-neutral: standard (rotation) 215 IF( ln_trcldf_triad ) nldf = np_lap_it ! iso-neutral: triad (rotation) 216 ENDIF 217 ! ! diffusivity ratio: passive / active tracers 218 IF( ABS(rn_aht_0) < 2._wp*TINY(1._wp) ) THEN 219 IF( ABS(rn_ahtrc_0) < 2._wp*TINY(1._wp) ) THEN 220 rldf = 1.0_wp 221 ELSE 222 CALL ctl_stop( 'trc_ldf_ctl : cannot define rldf, rn_aht_0==0, rn_ahtrc_0 /=0' ) 223 ENDIF 224 ELSE 225 rldf = rn_ahtrc_0 / rn_aht_0 226 ENDIF 227 ENDIF 228 ! 229 IF( ln_trcldf_blp ) THEN !== bilaplacian operator ==! 230 IF ( ln_zco ) THEN ! z-coordinate 231 IF ( ln_trcldf_lev ) nldf = np_blp ! iso-level = horizontal (no rotation) 232 IF ( ln_trcldf_hor ) nldf = np_blp ! iso-level = horizontal (no rotation) 233 IF ( ln_trcldf_iso ) nldf = np_blp_i ! iso-neutral: standard (rotation) 234 IF ( ln_trcldf_triad ) nldf = np_blp_it ! iso-neutral: triad (rotation) 235 ENDIF 236 IF ( ln_zps ) THEN ! z-coordinate with partial step 237 IF ( ln_trcldf_lev ) ierr = 1 ! iso-level not allowed 238 IF ( ln_trcldf_hor ) nldf = np_blp ! horizontal (no rotation) 239 IF ( ln_trcldf_iso ) nldf = np_blp_i ! iso-neutral: standard (rotation) 240 IF ( ln_trcldf_triad ) nldf = np_blp_it ! iso-neutral: triad (rotation) 241 ENDIF 242 IF ( ln_sco ) THEN ! s-coordinate 243 IF ( ln_trcldf_lev ) nldf = np_blp ! iso-level (no rotation) 244 IF ( ln_trcldf_hor ) nldf = np_blp_it ! horizontal ( rotation) !!gm a checker.... 245 IF ( ln_trcldf_iso ) nldf = np_blp_i ! iso-neutral: standard (rotation) 246 IF ( ln_trcldf_triad ) nldf = np_blp_it ! iso-neutral: triad (rotation) 247 ENDIF 248 ! ! diffusivity ratio: passive / active tracers 249 IF( ABS(rn_bht_0) < 2._wp*TINY(1._wp) ) THEN 250 IF( ABS(rn_bhtrc_0) < 2._wp*TINY(1._wp) ) THEN 251 rldf = 1.0_wp 252 ELSE 253 CALL ctl_stop( 'trc_ldf_ctl : cannot define rldf, rn_aht_0==0, rn_ahtrc_0 /=0' ) 254 ENDIF 255 ELSE 256 rldf = SQRT( ABS( rn_bhtrc_0 / rn_bht_0 ) ) 257 ENDIF 258 ENDIF 259 ! 260 IF( ierr == 1 ) CALL ctl_stop( 'trc_ldf_ini: iso-level in z-partial step, not allowed' ) 171 ! ! multiplier : passive/active tracers ration 172 IF( ln_traldf_lap ) THEN ! laplacian operator 173 rldf = rn_ldf_multi ! simple multiplier 174 ELSEIF( ln_traldf_blp ) THEN ! bilaplacian operator: 175 rldf = SQRT( ABS( rn_ldf_multi ) ) ! the coef. used is the SQRT of the bilaplacian coef. 261 176 ENDIF 262 !263 IF( ln_ldfeiv .AND. .NOT.ln_trcldf_iso ) CALL ctl_stop( 'trc_ldf_ini: eiv requires isopycnal laplacian diffusion' )264 IF( nldf == 1 .OR. nldf == 3 ) l_ldfslp = .TRUE. ! slope of neutral surfaces required265 177 ! 266 178 IF(lwp) THEN 267 179 WRITE(numout,*) 268 SELECT CASE( nldf )180 SELECT CASE( nldf_trc ) 269 181 CASE( np_no_ldf ) ; WRITE(numout,*) ' ===>> NO lateral diffusion' 270 182 CASE( np_lap ) ; WRITE(numout,*) ' ===>> laplacian iso-level operator'
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