Changeset 811 for branches/dev_001_SBC/NEMO/OPA_SRC/LDF/ldfeiv.F90
- Timestamp:
- 2008-02-07T17:00:12+01:00 (16 years ago)
- File:
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- 1 edited
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branches/dev_001_SBC/NEMO/OPA_SRC/LDF/ldfeiv.F90 (modified) (4 diffs)
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branches/dev_001_SBC/NEMO/OPA_SRC/LDF/ldfeiv.F90
r717 r811 10 10 !!---------------------------------------------------------------------- 11 11 !! ldf_eiv : compute the eddy induced velocity coefficients 12 !! Same results but not same routine if 'key_mpp_omp'13 !! is defined or not14 12 !!---------------------------------------------------------------------- 15 13 !! * Modules used … … 41 39 42 40 CONTAINS 43 44 # if defined key_mpp_omp45 !!----------------------------------------------------------------------46 !! 'key_mpp_omp' : OpenMP / NEC autotasking (j-slab)47 !!----------------------------------------------------------------------48 49 SUBROUTINE ldf_eiv( kt )50 !!----------------------------------------------------------------------51 !! *** ROUTINE ldf_eiv ***52 !!53 !! ** Purpose : Compute the eddy induced velocity coefficient from the54 !! growth rate of baroclinic instability.55 !!56 !! ** Method :57 !!58 !! ** Action : uslp(), : i- and j-slopes of neutral surfaces59 !! vslp() at u- and v-points, resp.60 !! wslpi(), : i- and j-slopes of neutral surfaces61 !! wslpj() at w-points.62 !!63 !! History :64 !! 8.1 ! 99-03 (G. Madec, A. Jouzeau) Original code65 !! 8.5 ! 02-06 (G. Madec) Free form, F9066 !!----------------------------------------------------------------------67 !! * Arguments68 INTEGER, INTENT( in ) :: kt ! ocean time-step inedx69 70 !! * Local declarations71 INTEGER :: ji, jj, jk ! dummy loop indices72 REAL(wp) :: &73 zfw, ze3w, zn2, zf20, & ! temporary scalars74 zaht, zaht_min75 REAL(wp), DIMENSION(jpi,jpj) :: &76 zn, zah, zhw, zross ! workspace77 !!----------------------------------------------------------------------78 79 IF( kt == nit000 ) THEN80 IF(lwp) WRITE(numout,*)81 IF(lwp) WRITE(numout,*) 'ldf_eiv : eddy induced velocity coefficients'82 IF(lwp) WRITE(numout,*) '~~~~~~~ NEC autotasking / OpenMP : j-slab'83 ENDIF84 85 ! ! ===============86 DO jj = 2, jpjm1 ! Vertical slab87 ! ! ===============88 89 ! 0. Local initialization90 ! -----------------------91 zn (:,jj) = 0.e092 zhw (:,jj) = 5.e093 zah (:,jj) = 0.e094 zross(:,jj) = 0.e095 96 ! 1. Compute lateral diffusive coefficient97 ! ----------------------------------------98 99 !CDIR NOVERRCHK100 DO jk = 1, jpk101 !CDIR NOVERRCHK102 DO ji = 2, jpim1103 ! Take the max of N^2 and zero then take the vertical sum104 ! of the square root of the resulting N^2 ( required to compute105 ! internal Rossby radius Ro = .5 * sum_jpk(N) / f106 zn2 = MAX( rn2(ji,jj,jk), 0.e0 )107 ze3w = fse3w(ji,jj,jk) * tmask(ji,jj,jk)108 zn(ji,jj) = zn(ji,jj) + SQRT( zn2 ) * fse3w(ji,jj,jk)109 ! Compute elements required for the inverse time scale of baroclinic110 ! eddies using the isopycnal slopes calculated in ldfslp.F :111 ! T^-1 = sqrt(m_jpk(N^2*(r1^2+r2^2)*e3w))112 zah(ji,jj) = zah(ji,jj) + zn2 &113 * ( wslpi(ji,jj,jk) * wslpi(ji,jj,jk) &114 + wslpj(ji,jj,jk) * wslpj(ji,jj,jk) ) &115 * ze3w116 zhw(ji,jj) = zhw(ji,jj) + ze3w117 END DO118 END DO119 120 !CDIR NOVERRCHK121 DO ji = 2, jpim1122 zfw = MAX( ABS( 2. * omega * SIN( rad * gphit(ji,jj) ) ) , 1.e-10 )123 ! Rossby radius at w-point taken < 40km and > 2km124 zross(ji,jj) = MAX( MIN( .4 * zn(ji,jj) / zfw, 40.e3 ), 2.e3 )125 ! Compute aeiw by multiplying Ro^2 and T^-1126 aeiw(ji,jj) = zross(ji,jj) * zross(ji,jj) * SQRT( zah(ji,jj) / zhw(ji,jj) ) * tmask(ji,jj,1)127 IF( cp_cfg == "orca" .AND. jp_cfg == 2 ) THEN ! ORCA R02128 ! Take the minimum between aeiw and aeiv0 for depth levels129 ! lower than 20 (21 in w- point)130 IF( mbathy(ji,jj) <= 21. ) aeiw(ji,jj) = MIN( aeiw(ji,jj), 1000. )131 ENDIF132 END DO133 134 ! Decrease the coefficient in the tropics (20N-20S)135 zf20 = 2. * omega * sin( rad * 20. )136 DO ji = 2, jpim1137 aeiw(ji,jj) = MIN( 1., ABS( ff(ji,jj) / zf20 ) ) * aeiw(ji,jj)138 END DO139 140 ! ORCA R05: Take the minimum between aeiw and aeiv0141 IF( cp_cfg == "orca" .AND. jp_cfg == 05 ) THEN ! ORCA R05142 DO ji = 2, jpim1143 aeiw(ji,jj) = MIN( aeiw(ji,jj), aeiv0 )144 END DO145 ENDIF146 ! ! ===============147 END DO ! End of slab148 ! ! ===============149 150 !,,,,,,,,,,,,,,,,,,,,,,,,,,,,,synchro,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,151 152 ! lateral boundary condition on aeiw153 CALL lbc_lnk( aeiw, 'W', 1. )154 155 ! Average the diffusive coefficient at u- v- points156 DO jj = 2, jpjm1157 DO ji = fs_2, fs_jpim1 ! vector opt.158 aeiu(ji,jj) = .5 * (aeiw(ji,jj) + aeiw(ji+1,jj ))159 aeiv(ji,jj) = .5 * (aeiw(ji,jj) + aeiw(ji ,jj+1))160 END DO161 END DO162 !,,,,,,,,,,,,,,,,,,,,,,,,,,,,,synchro,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,163 164 ! lateral boundary condition on aeiu, aeiv165 CALL lbc_lnk( aeiu, 'U', 1. )166 CALL lbc_lnk( aeiv, 'V', 1. )167 168 IF(ln_ctl) THEN169 CALL prt_ctl(tab2d_1=aeiu, clinfo1=' eiv - u: ', ovlap=1)170 CALL prt_ctl(tab2d_1=aeiv, clinfo1=' eiv - v: ', ovlap=1)171 ENDIF172 173 ! ORCA R05: add a space variation on aht (=aeiv except at the equator and river mouth)174 IF( cp_cfg == "orca" .AND. jp_cfg == 05 ) THEN175 zf20 = 2. * omega * SIN( rad * 20. )176 zaht_min = 100. ! minimum value for aht177 DO jj = 1, jpj178 DO ji = 1, jpi179 zaht = ( 1. - MIN( 1., ABS( ff(ji,jj) / zf20 ) ) ) * ( aht0 - zaht_min ) &180 & + aht0 * rnfmsk(ji,jj) ! enhanced near river mouths181 ahtu(ji,jj) = MAX( MAX( zaht_min, aeiu(ji,jj) ) + zaht, aht0 )182 ahtv(ji,jj) = MAX( MAX( zaht_min, aeiv(ji,jj) ) + zaht, aht0 )183 ahtw(ji,jj) = MAX( MAX( zaht_min, aeiw(ji,jj) ) + zaht, aht0 )184 END DO185 END DO186 IF(ln_ctl) THEN187 CALL prt_ctl(tab2d_1=ahtu, clinfo1=' aht - u: ', ovlap=1)188 CALL prt_ctl(tab2d_1=ahtv, clinfo1=' aht - v: ', ovlap=1)189 CALL prt_ctl(tab2d_1=ahtw, clinfo1=' aht - w: ', ovlap=1)190 ENDIF191 ENDIF192 193 IF( aeiv0 == 0.e0 ) THEN194 aeiu(:,:) = 0.e0195 aeiv(:,:) = 0.e0196 aeiw(:,:) = 0.e0197 ENDIF198 199 END SUBROUTINE ldf_eiv200 201 # else202 !!----------------------------------------------------------------------203 !! Default key k-j-i loops204 !!----------------------------------------------------------------------205 41 206 42 SUBROUTINE ldf_eiv( kt ) … … 252 88 253 89 DO jk = 1, jpk 254 # if defined key_vectopt_loop && ! defined key_mpp_omp90 # if defined key_vectopt_loop 255 91 !CDIR NOVERRCHK 256 92 DO ji = 1, jpij ! vector opt. … … 374 210 END SUBROUTINE ldf_eiv 375 211 376 # endif377 378 212 #else 379 213 !!----------------------------------------------------------------------
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