[3] | 1 | MODULE trasbc |
---|
| 2 | !!============================================================================== |
---|
| 3 | !! *** MODULE trasbc *** |
---|
| 4 | !! Ocean active tracers: surface boundary condition |
---|
| 5 | !!============================================================================== |
---|
[2528] | 6 | !! History : OPA ! 1998-10 (G. Madec, G. Roullet, M. Imbard) Original code |
---|
| 7 | !! 8.2 ! 2001-02 (D. Ludicone) sea ice and free surface |
---|
| 8 | !! NEMO 1.0 ! 2002-06 (G. Madec) F90: Free form and module |
---|
| 9 | !! 3.3 ! 2010-04 (M. Leclair, G. Madec) Forcing averaged over 2 time steps |
---|
| 10 | !! - ! 2010-09 (C. Ethe, G. Madec) Merge TRA-TRC |
---|
[14072] | 11 | !! 3.6 ! 2014-11 (P. Mathiot) isf melting forcing |
---|
[12377] | 12 | !! 4.1 ! 2019-09 (P. Mathiot) isf moved in traisf |
---|
[3] | 13 | !!---------------------------------------------------------------------- |
---|
[503] | 14 | |
---|
| 15 | !!---------------------------------------------------------------------- |
---|
[6140] | 16 | !! tra_sbc : update the tracer trend at ocean surface |
---|
[3] | 17 | !!---------------------------------------------------------------------- |
---|
[6140] | 18 | USE oce ! ocean dynamics and active tracers |
---|
| 19 | USE sbc_oce ! surface boundary condition: ocean |
---|
| 20 | USE dom_oce ! ocean space domain variables |
---|
| 21 | USE phycst ! physical constant |
---|
| 22 | USE eosbn2 ! Equation Of State |
---|
[14072] | 23 | USE sbcmod ! ln_rnf |
---|
| 24 | USE sbcrnf ! River runoff |
---|
[6140] | 25 | USE traqsr ! solar radiation penetration |
---|
| 26 | USE trd_oce ! trends: ocean variables |
---|
[14072] | 27 | USE trdtra ! trends manager: tracers |
---|
| 28 | #if defined key_asminc |
---|
[9023] | 29 | USE asminc ! Assimilation increment |
---|
| 30 | #endif |
---|
[4990] | 31 | ! |
---|
[6140] | 32 | USE in_out_manager ! I/O manager |
---|
| 33 | USE prtctl ! Print control |
---|
| 34 | USE iom ! xIOS server |
---|
| 35 | USE lbclnk ! ocean lateral boundary conditions (or mpp link) |
---|
| 36 | USE timing ! Timing |
---|
[3] | 37 | |
---|
| 38 | IMPLICIT NONE |
---|
| 39 | PRIVATE |
---|
| 40 | |
---|
[6140] | 41 | PUBLIC tra_sbc ! routine called by step.F90 |
---|
[3] | 42 | |
---|
| 43 | !! * Substitutions |
---|
[12377] | 44 | # include "do_loop_substitute.h90" |
---|
[13237] | 45 | # include "domzgr_substitute.h90" |
---|
[14219] | 46 | # include "single_precision_substitute.h90" |
---|
[3] | 47 | !!---------------------------------------------------------------------- |
---|
[9598] | 48 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
---|
[888] | 49 | !! $Id$ |
---|
[10068] | 50 | !! Software governed by the CeCILL license (see ./LICENSE) |
---|
[3] | 51 | !!---------------------------------------------------------------------- |
---|
| 52 | CONTAINS |
---|
| 53 | |
---|
[12377] | 54 | SUBROUTINE tra_sbc ( kt, Kmm, pts, Krhs ) |
---|
[3] | 55 | !!---------------------------------------------------------------------- |
---|
| 56 | !! *** ROUTINE tra_sbc *** |
---|
[14072] | 57 | !! |
---|
[3] | 58 | !! ** Purpose : Compute the tracer surface boundary condition trend of |
---|
| 59 | !! (flux through the interface, concentration/dilution effect) |
---|
| 60 | !! and add it to the general trend of tracer equations. |
---|
| 61 | !! |
---|
[14072] | 62 | !! ** Method : The (air+ice)-sea flux has two components: |
---|
| 63 | !! (1) Fext, external forcing (i.e. flux through the (air+ice)-sea interface); |
---|
| 64 | !! (2) Fwe , tracer carried with the water that is exchanged with air+ice. |
---|
[12377] | 65 | !! The input forcing fields (emp, rnf, sfx) contain Fext+Fwe, |
---|
| 66 | !! they are simply added to the tracer trend (ts(Krhs)). |
---|
[6140] | 67 | !! In linear free surface case (ln_linssh=T), the volume of the |
---|
| 68 | !! ocean does not change with the water exchanges at the (air+ice)-sea |
---|
| 69 | !! interface. Therefore another term has to be added, to mimic the |
---|
| 70 | !! concentration/dilution effect associated with water exchanges. |
---|
[664] | 71 | !! |
---|
[14072] | 72 | !! ** Action : - Update ts(Krhs) with the surface boundary condition trend |
---|
[6140] | 73 | !! - send trends to trdtra module for further diagnostics(l_trdtra=T) |
---|
[503] | 74 | !!---------------------------------------------------------------------- |
---|
[14219] | 75 | INTEGER, INTENT(in ) :: kt ! ocean time-step index |
---|
| 76 | INTEGER, INTENT(in ) :: Kmm, Krhs ! time level indices |
---|
| 77 | REAL(dp), DIMENSION(jpi,jpj,jpk,jpts,jpt), INTENT(inout) :: pts ! active tracers and RHS of tracer equation |
---|
[6140] | 78 | ! |
---|
[13982] | 79 | INTEGER :: ji, jj, jk, jn ! dummy loop indices |
---|
| 80 | INTEGER :: ikt, ikb, isi, iei, isj, iej ! local integers |
---|
| 81 | REAL(wp) :: zfact, z1_e3t, zdep, ztim ! local scalar |
---|
[9019] | 82 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: ztrdt, ztrds |
---|
[3] | 83 | !!---------------------------------------------------------------------- |
---|
[3294] | 84 | ! |
---|
[9019] | 85 | IF( ln_timing ) CALL timing_start('tra_sbc') |
---|
[3294] | 86 | ! |
---|
[13982] | 87 | IF( ntile == 0 .OR. ntile == 1 ) THEN ! Do only on the first tile |
---|
| 88 | IF( kt == nit000 ) THEN |
---|
| 89 | IF(lwp) WRITE(numout,*) |
---|
| 90 | IF(lwp) WRITE(numout,*) 'tra_sbc : TRAcer Surface Boundary Condition' |
---|
| 91 | IF(lwp) WRITE(numout,*) '~~~~~~~ ' |
---|
| 92 | ENDIF |
---|
[3] | 93 | ENDIF |
---|
[6140] | 94 | ! |
---|
[4990] | 95 | IF( l_trdtra ) THEN !* Save ta and sa trends |
---|
[13982] | 96 | ALLOCATE( ztrdt(jpi,jpj,jpk), ztrds(jpi,jpj,jpk) ) |
---|
[12377] | 97 | ztrdt(:,:,:) = pts(:,:,:,jp_tem,Krhs) |
---|
| 98 | ztrds(:,:,:) = pts(:,:,:,jp_sal,Krhs) |
---|
[216] | 99 | ENDIF |
---|
[6140] | 100 | ! |
---|
[13982] | 101 | IF( ntsi == Nis0 ) THEN ; isi = nn_hls ; ELSE ; isi = 0 ; ENDIF ! Avoid double-counting when using tiling |
---|
| 102 | IF( ntsj == Njs0 ) THEN ; isj = nn_hls ; ELSE ; isj = 0 ; ENDIF |
---|
| 103 | IF( ntei == Nie0 ) THEN ; iei = nn_hls ; ELSE ; iei = 0 ; ENDIF |
---|
| 104 | IF( ntej == Nje0 ) THEN ; iej = nn_hls ; ELSE ; iej = 0 ; ENDIF |
---|
| 105 | |
---|
[6140] | 106 | !!gm This should be moved into sbcmod.F90 module ? (especially now that ln_traqsr is read in namsbc namelist) |
---|
[2528] | 107 | IF( .NOT.ln_traqsr ) THEN ! no solar radiation penetration |
---|
[14644] | 108 | DO_2D( isi, iei, isj, iej ) |
---|
[13982] | 109 | qns(ji,jj) = qns(ji,jj) + qsr(ji,jj) ! total heat flux in qns |
---|
| 110 | qsr(ji,jj) = 0._wp ! qsr set to zero |
---|
| 111 | END_2D |
---|
[2528] | 112 | ENDIF |
---|
[3] | 113 | |
---|
[2528] | 114 | !---------------------------------------- |
---|
[4990] | 115 | ! EMP, SFX and QNS effects |
---|
[2528] | 116 | !---------------------------------------- |
---|
[6140] | 117 | ! !== Set before sbc tracer content fields ==! |
---|
| 118 | IF( kt == nit000 ) THEN !* 1st time-step |
---|
[14053] | 119 | IF( ln_rstart .AND. .NOT.l_1st_euler ) THEN ! Restart: read in restart file |
---|
[4990] | 120 | zfact = 0.5_wp |
---|
[13982] | 121 | IF( ntile == 0 .OR. ntile == 1 ) THEN ! Do only on the first tile |
---|
| 122 | IF(lwp) WRITE(numout,*) ' nit000-1 sbc tracer content field read in the restart file' |
---|
| 123 | sbc_tsc(:,:,:) = 0._wp |
---|
| 124 | CALL iom_get( numror, jpdom_auto, 'sbc_hc_b', sbc_tsc_b(:,:,jp_tem) ) ! before heat content sbc trend |
---|
| 125 | CALL iom_get( numror, jpdom_auto, 'sbc_sc_b', sbc_tsc_b(:,:,jp_sal) ) ! before salt content sbc trend |
---|
| 126 | ENDIF |
---|
[14053] | 127 | ELSE ! No restart or restart not found: Euler forward time stepping |
---|
[4990] | 128 | zfact = 1._wp |
---|
[14644] | 129 | DO_2D( isi, iei, isj, iej ) |
---|
[13982] | 130 | sbc_tsc(ji,jj,:) = 0._wp |
---|
| 131 | sbc_tsc_b(ji,jj,:) = 0._wp |
---|
| 132 | END_2D |
---|
[2528] | 133 | ENDIF |
---|
[6140] | 134 | ELSE !* other time-steps: swap of forcing fields |
---|
[4990] | 135 | zfact = 0.5_wp |
---|
[14644] | 136 | DO_2D( isi, iei, isj, iej ) |
---|
[13982] | 137 | sbc_tsc_b(ji,jj,:) = sbc_tsc(ji,jj,:) |
---|
| 138 | END_2D |
---|
[2528] | 139 | ENDIF |
---|
[6140] | 140 | ! !== Now sbc tracer content fields ==! |
---|
[14644] | 141 | DO_2D( isi, iei, isj, iej ) |
---|
[12489] | 142 | sbc_tsc(ji,jj,jp_tem) = r1_rho0_rcp * qns(ji,jj) ! non solar heat flux |
---|
| 143 | sbc_tsc(ji,jj,jp_sal) = r1_rho0 * sfx(ji,jj) ! salt flux due to freezing/melting |
---|
[12377] | 144 | END_2D |
---|
[14072] | 145 | IF( ln_linssh ) THEN !* linear free surface |
---|
[14644] | 146 | DO_2D( isi, iei, isj, iej ) !==>> add concentration/dilution effect due to constant volume cell |
---|
[12489] | 147 | sbc_tsc(ji,jj,jp_tem) = sbc_tsc(ji,jj,jp_tem) + r1_rho0 * emp(ji,jj) * pts(ji,jj,1,jp_tem,Kmm) |
---|
| 148 | sbc_tsc(ji,jj,jp_sal) = sbc_tsc(ji,jj,jp_sal) + r1_rho0 * emp(ji,jj) * pts(ji,jj,1,jp_sal,Kmm) |
---|
[13497] | 149 | END_2D !==>> output c./d. term |
---|
[13982] | 150 | IF( ntile == 0 .OR. ntile == nijtile ) THEN ! Do only on the last tile |
---|
| 151 | IF( iom_use('emp_x_sst') ) CALL iom_put( "emp_x_sst", emp (:,:) * pts(:,:,1,jp_tem,Kmm) ) |
---|
| 152 | IF( iom_use('emp_x_sss') ) CALL iom_put( "emp_x_sss", emp (:,:) * pts(:,:,1,jp_sal,Kmm) ) |
---|
| 153 | ENDIF |
---|
[2528] | 154 | ENDIF |
---|
[6140] | 155 | ! |
---|
| 156 | DO jn = 1, jpts !== update tracer trend ==! |
---|
[13982] | 157 | DO_2D( 0, 0, 0, 0 ) |
---|
[13237] | 158 | pts(ji,jj,1,jn,Krhs) = pts(ji,jj,1,jn,Krhs) + zfact * ( sbc_tsc_b(ji,jj,jn) + sbc_tsc(ji,jj,jn) ) & |
---|
| 159 | & / e3t(ji,jj,1,Kmm) |
---|
[12377] | 160 | END_2D |
---|
[3] | 161 | END DO |
---|
[14072] | 162 | ! |
---|
[13982] | 163 | IF( ntile == 0 .OR. ntile == nijtile ) THEN ! Do only on the last tile |
---|
| 164 | IF( lrst_oce ) THEN !== write sbc_tsc in the ocean restart file ==! |
---|
| 165 | CALL iom_rstput( kt, nitrst, numrow, 'sbc_hc_b', sbc_tsc(:,:,jp_tem) ) |
---|
| 166 | CALL iom_rstput( kt, nitrst, numrow, 'sbc_sc_b', sbc_tsc(:,:,jp_sal) ) |
---|
| 167 | ENDIF |
---|
[2528] | 168 | ENDIF |
---|
| 169 | ! |
---|
| 170 | !---------------------------------------- |
---|
| 171 | ! River Runoff effects |
---|
| 172 | !---------------------------------------- |
---|
| 173 | ! |
---|
[14072] | 174 | IF( ln_rnf ) THEN ! input of heat and salt due to river runoff |
---|
[3764] | 175 | zfact = 0.5_wp |
---|
[13982] | 176 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 177 | IF( rnf(ji,jj) /= 0._wp ) THEN |
---|
| 178 | zdep = zfact / h_rnf(ji,jj) |
---|
| 179 | DO jk = 1, nk_rnf(ji,jj) |
---|
| 180 | pts(ji,jj,jk,jp_tem,Krhs) = pts(ji,jj,jk,jp_tem,Krhs) & |
---|
| 181 | & + ( rnf_tsc_b(ji,jj,jp_tem) + rnf_tsc(ji,jj,jp_tem) ) * zdep |
---|
| 182 | IF( ln_rnf_sal ) pts(ji,jj,jk,jp_sal,Krhs) = pts(ji,jj,jk,jp_sal,Krhs) & |
---|
[14072] | 183 | & + ( rnf_tsc_b(ji,jj,jp_sal) + rnf_tsc(ji,jj,jp_sal) ) * zdep |
---|
[12377] | 184 | END DO |
---|
| 185 | ENDIF |
---|
| 186 | END_2D |
---|
[3764] | 187 | ENDIF |
---|
[6472] | 188 | |
---|
[13982] | 189 | IF( ntile == 0 .OR. ntile == nijtile ) THEN ! Do only on the last tile |
---|
| 190 | IF( iom_use('rnf_x_sst') ) CALL iom_put( "rnf_x_sst", rnf*pts(:,:,1,jp_tem,Kmm) ) ! runoff term on sst |
---|
| 191 | IF( iom_use('rnf_x_sss') ) CALL iom_put( "rnf_x_sss", rnf*pts(:,:,1,jp_sal,Kmm) ) ! runoff term on sss |
---|
| 192 | ENDIF |
---|
[6472] | 193 | |
---|
[9023] | 194 | #if defined key_asminc |
---|
[6140] | 195 | ! |
---|
| 196 | !---------------------------------------- |
---|
[9023] | 197 | ! Assmilation effects |
---|
| 198 | !---------------------------------------- |
---|
| 199 | ! |
---|
| 200 | IF( ln_sshinc ) THEN ! input of heat and salt due to assimilation |
---|
| 201 | ! |
---|
[14072] | 202 | IF( ln_linssh ) THEN |
---|
[13982] | 203 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 204 | ztim = ssh_iau(ji,jj) / e3t(ji,jj,1,Kmm) |
---|
| 205 | pts(ji,jj,1,jp_tem,Krhs) = pts(ji,jj,1,jp_tem,Krhs) + pts(ji,jj,1,jp_tem,Kmm) * ztim |
---|
| 206 | pts(ji,jj,1,jp_sal,Krhs) = pts(ji,jj,1,jp_sal,Krhs) + pts(ji,jj,1,jp_sal,Kmm) * ztim |
---|
| 207 | END_2D |
---|
[9023] | 208 | ELSE |
---|
[13982] | 209 | DO_2D( 0, 0, 0, 0 ) |
---|
[12377] | 210 | ztim = ssh_iau(ji,jj) / ( ht(ji,jj) + 1. - ssmask(ji, jj) ) |
---|
| 211 | pts(ji,jj,:,jp_tem,Krhs) = pts(ji,jj,:,jp_tem,Krhs) + pts(ji,jj,:,jp_tem,Kmm) * ztim |
---|
| 212 | pts(ji,jj,:,jp_sal,Krhs) = pts(ji,jj,:,jp_sal,Krhs) + pts(ji,jj,:,jp_sal,Kmm) * ztim |
---|
| 213 | END_2D |
---|
[9023] | 214 | ENDIF |
---|
| 215 | ! |
---|
| 216 | ENDIF |
---|
| 217 | ! |
---|
| 218 | #endif |
---|
| 219 | ! |
---|
[6140] | 220 | IF( l_trdtra ) THEN ! save the horizontal diffusive trends for further diagnostics |
---|
[12377] | 221 | ztrdt(:,:,:) = pts(:,:,:,jp_tem,Krhs) - ztrdt(:,:,:) |
---|
| 222 | ztrds(:,:,:) = pts(:,:,:,jp_sal,Krhs) - ztrds(:,:,:) |
---|
| 223 | CALL trd_tra( kt, Kmm, Krhs, 'TRA', jp_tem, jptra_nsr, ztrdt ) |
---|
| 224 | CALL trd_tra( kt, Kmm, Krhs, 'TRA', jp_sal, jptra_nsr, ztrds ) |
---|
[13982] | 225 | DEALLOCATE( ztrdt , ztrds ) |
---|
[216] | 226 | ENDIF |
---|
[503] | 227 | ! |
---|
[14219] | 228 | IF(sn_cfctl%l_prtctl) CALL prt_ctl( tab3d_1=CASTWP(pts(:,:,:,jp_tem,Krhs)), clinfo1=' sbc - Ta: ', mask1=tmask, & |
---|
| 229 | & tab3d_2=CASTWP(pts(:,:,:,jp_sal,Krhs)), clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
---|
[503] | 230 | ! |
---|
[9019] | 231 | IF( ln_timing ) CALL timing_stop('tra_sbc') |
---|
[3294] | 232 | ! |
---|
[3] | 233 | END SUBROUTINE tra_sbc |
---|
| 234 | |
---|
| 235 | !!====================================================================== |
---|
| 236 | END MODULE trasbc |
---|