[3] | 1 | MODULE tranpc |
---|
| 2 | !!============================================================================== |
---|
| 3 | !! *** MODULE tranpc *** |
---|
| 4 | !! Ocean active tracers: non penetrative convection scheme |
---|
| 5 | !!============================================================================== |
---|
[1537] | 6 | !! History : 1.0 ! 1990-09 (G. Madec) Original code |
---|
| 7 | !! ! 1996-01 (G. Madec) statement function for e3 |
---|
| 8 | !! NEMO 1.0 ! 2002-06 (G. Madec) free form F90 |
---|
| 9 | !! 3.0 ! 2008-06 (G. Madec) applied on ta, sa and called before tranxt in step.F90 |
---|
[2528] | 10 | !! 3.3 ! 2010-05 (C. Ethe, G. Madec) merge TRC-TRA |
---|
[503] | 11 | !!---------------------------------------------------------------------- |
---|
[3] | 12 | |
---|
| 13 | !!---------------------------------------------------------------------- |
---|
[1537] | 14 | !! tra_npc : apply the non penetrative convection scheme |
---|
[3] | 15 | !!---------------------------------------------------------------------- |
---|
| 16 | USE oce ! ocean dynamics and active tracers |
---|
| 17 | USE dom_oce ! ocean space and time domain |
---|
[1537] | 18 | USE zdf_oce ! ocean vertical physics |
---|
[2528] | 19 | USE trdmod_oce ! ocean active tracer trends |
---|
[2636] | 20 | USE trdtra ! ocean active tracer trends |
---|
[3] | 21 | USE eosbn2 ! equation of state (eos routine) |
---|
| 22 | USE lbclnk ! lateral boundary conditions (or mpp link) |
---|
[216] | 23 | USE in_out_manager ! I/O manager |
---|
[2636] | 24 | USE lib_mpp ! MPP library |
---|
[3] | 25 | |
---|
| 26 | IMPLICIT NONE |
---|
| 27 | PRIVATE |
---|
| 28 | |
---|
[2590] | 29 | PUBLIC tra_npc ! routine called by step.F90 |
---|
[3] | 30 | |
---|
| 31 | !! * Substitutions |
---|
| 32 | # include "domzgr_substitute.h90" |
---|
| 33 | !!---------------------------------------------------------------------- |
---|
[2528] | 34 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
---|
[1146] | 35 | !! $Id$ |
---|
[2528] | 36 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
---|
[3] | 37 | !!---------------------------------------------------------------------- |
---|
| 38 | CONTAINS |
---|
| 39 | |
---|
| 40 | SUBROUTINE tra_npc( kt ) |
---|
| 41 | !!---------------------------------------------------------------------- |
---|
| 42 | !! *** ROUTINE tranpc *** |
---|
| 43 | !! |
---|
| 44 | !! ** Purpose : Non penetrative convective adjustment scheme. solve |
---|
[1111] | 45 | !! the static instability of the water column on after fields |
---|
[3] | 46 | !! while conserving heat and salt contents. |
---|
| 47 | !! |
---|
| 48 | !! ** Method : The algorithm used converges in a maximium of jpk |
---|
| 49 | !! iterations. instabilities are treated when the vertical density |
---|
| 50 | !! gradient is less than 1.e-5. |
---|
[503] | 51 | !! l_trdtra=T: the trend associated with this algorithm is saved. |
---|
[3] | 52 | !! |
---|
[1111] | 53 | !! ** Action : - (ta,sa) after the application od the npc scheme |
---|
[3] | 54 | !! - save the associated trends (ttrd,strd) ('key_trdtra') |
---|
| 55 | !! |
---|
[503] | 56 | !! References : Madec, et al., 1991, JPO, 21, 9, 1349-1371. |
---|
| 57 | !!---------------------------------------------------------------------- |
---|
[2690] | 58 | USE wrk_nemo, ONLY: wrk_in_use, wrk_not_released, wrk_in_use_xz, wrk_not_released_xz |
---|
| 59 | USE wrk_nemo, ONLY: ztrdt => wrk_3d_1 , ztrds => wrk_3d_2 , zrhop => wrk_3d_3 |
---|
| 60 | USE wrk_nemo, ONLY: zwx => wrk_xz_1 , zwy => wrk_xz_2 , zwz => wrk_xz_3 |
---|
| 61 | ! |
---|
[503] | 62 | INTEGER, INTENT(in) :: kt ! ocean time-step index |
---|
[2690] | 63 | ! |
---|
[503] | 64 | INTEGER :: ji, jj, jk ! dummy loop indices |
---|
| 65 | INTEGER :: inpcc ! number of statically instable water column |
---|
| 66 | INTEGER :: inpci ! number of iteration for npc scheme |
---|
| 67 | INTEGER :: jiter, jkdown, jkp ! ??? |
---|
| 68 | INTEGER :: ikbot, ik, ikup, ikdown ! ??? |
---|
| 69 | REAL(wp) :: ze3tot, zta, zsa, zraua, ze3dwn |
---|
[3] | 70 | !!---------------------------------------------------------------------- |
---|
[216] | 71 | |
---|
[2590] | 72 | ! Strictly 1 and 2 3D workspaces only needed if(l_trdtra) but it doesn't |
---|
| 73 | ! cost us anything and makes code simpler. |
---|
[2690] | 74 | IF( wrk_in_use(3, 1,2,3) .OR. wrk_in_use_xz(1,2,3) ) THEN |
---|
| 75 | CALL ctl_stop('tra_npc: requested workspace arrays unavailable') ; RETURN |
---|
| 76 | ENDIF |
---|
[2590] | 77 | |
---|
[1537] | 78 | IF( MOD( kt, nn_npc ) == 0 ) THEN |
---|
[3] | 79 | |
---|
| 80 | inpcc = 0 |
---|
| 81 | inpci = 0 |
---|
| 82 | |
---|
[2528] | 83 | CALL eos( tsa, rhd, zrhop ) ! Potential density |
---|
[3] | 84 | |
---|
[2528] | 85 | IF( l_trdtra ) THEN !* Save ta and sa trends |
---|
[2590] | 86 | ztrdt(:,:,:) = tsa(:,:,:,jp_tem) |
---|
| 87 | ztrds(:,:,:) = tsa(:,:,:,jp_sal) |
---|
[216] | 88 | ENDIF |
---|
| 89 | |
---|
[3] | 90 | ! ! =============== |
---|
| 91 | DO jj = 1, jpj ! Vertical slab |
---|
| 92 | ! ! =============== |
---|
[503] | 93 | ! Static instability pointer |
---|
| 94 | ! ---------------------------- |
---|
[3] | 95 | DO jk = 1, jpkm1 |
---|
| 96 | DO ji = 1, jpi |
---|
| 97 | zwx(ji,jk) = ( zrhop(ji,jj,jk) - zrhop(ji,jj,jk+1) ) * tmask(ji,jj,jk+1) |
---|
| 98 | END DO |
---|
| 99 | END DO |
---|
| 100 | |
---|
| 101 | ! 1.1 do not consider the boundary points |
---|
| 102 | |
---|
| 103 | ! even if east-west cyclic b. c. do not considere ji=1 or jpi |
---|
| 104 | DO jk = 1, jpkm1 |
---|
| 105 | zwx( 1 ,jk) = 0.e0 |
---|
| 106 | zwx(jpi,jk) = 0.e0 |
---|
| 107 | END DO |
---|
| 108 | ! even if south-symmetric b. c. used, do not considere jj=1 |
---|
[503] | 109 | IF( jj == 1 ) zwx(:,:) = 0.e0 |
---|
[3] | 110 | |
---|
| 111 | DO jk = 1, jpkm1 |
---|
| 112 | DO ji = 1, jpi |
---|
| 113 | zwx(ji,jk) = 1. |
---|
[503] | 114 | IF( zwx(ji,jk) < 1.e-5 ) zwx(ji,jk) = 0.e0 |
---|
[3] | 115 | END DO |
---|
| 116 | END DO |
---|
| 117 | |
---|
[503] | 118 | zwy(:,1) = 0.e0 |
---|
[3] | 119 | DO ji = 1, jpi |
---|
| 120 | DO jk = 1, jpkm1 |
---|
| 121 | zwy(ji,1) = zwy(ji,1) + zwx(ji,jk) |
---|
| 122 | END DO |
---|
| 123 | END DO |
---|
| 124 | |
---|
[503] | 125 | zwz(1,1) = 0.e0 |
---|
[3] | 126 | DO ji = 1, jpi |
---|
| 127 | zwz(1,1) = zwz(1,1) + zwy(ji,1) |
---|
| 128 | END DO |
---|
| 129 | |
---|
| 130 | inpcc = inpcc + NINT( zwz(1,1) ) |
---|
| 131 | |
---|
| 132 | |
---|
| 133 | ! 2. Vertical mixing for each instable portion of the density profil |
---|
| 134 | ! ------------------------------------------------------------------ |
---|
| 135 | |
---|
[503] | 136 | IF( zwz(1,1) /= 0.e0 ) THEN ! -->> the density profil is statically instable : |
---|
[3] | 137 | DO ji = 1, jpi |
---|
[503] | 138 | IF( zwy(ji,1) /= 0.e0 ) THEN |
---|
| 139 | ! |
---|
[2528] | 140 | ikbot = mbkt(ji,jj) ! ikbot: ocean bottom T-level |
---|
[503] | 141 | ! |
---|
| 142 | DO jiter = 1, jpk ! vertical iteration |
---|
| 143 | ! |
---|
[3] | 144 | ! search of ikup : the first static instability from the sea surface |
---|
[503] | 145 | ! |
---|
[3] | 146 | ik = 0 |
---|
| 147 | 220 CONTINUE |
---|
| 148 | ik = ik + 1 |
---|
[2528] | 149 | IF( ik >= ikbot ) GO TO 200 |
---|
[3] | 150 | zwx(ji,ik) = zrhop(ji,jj,ik) - zrhop(ji,jj,ik+1) |
---|
[503] | 151 | IF( zwx(ji,ik) <= 0.e0 ) GO TO 220 |
---|
[3] | 152 | ikup = ik |
---|
| 153 | ! the density profil is instable below ikup |
---|
| 154 | ! ikdown : bottom of the instable portion of the density profil |
---|
| 155 | ! search of ikdown and vertical mixing from ikup to ikdown |
---|
[503] | 156 | ! |
---|
[3] | 157 | ze3tot= fse3t(ji,jj,ikup) |
---|
[2528] | 158 | zta = tsa (ji,jj,ikup,jp_tem) |
---|
| 159 | zsa = tsa (ji,jj,ikup,jp_sal) |
---|
[3] | 160 | zraua = zrhop(ji,jj,ikup) |
---|
[503] | 161 | ! |
---|
[3] | 162 | DO jkdown = ikup+1, ikbot-1 |
---|
| 163 | IF( zraua <= zrhop(ji,jj,jkdown) ) THEN |
---|
| 164 | ikdown = jkdown |
---|
| 165 | GO TO 240 |
---|
| 166 | ENDIF |
---|
| 167 | ze3dwn = fse3t(ji,jj,jkdown) |
---|
| 168 | ze3tot = ze3tot + ze3dwn |
---|
[2528] | 169 | zta = ( zta*(ze3tot-ze3dwn) + tsa(ji,jj,jkdown,jp_tem)*ze3dwn )/ze3tot |
---|
| 170 | zsa = ( zsa*(ze3tot-ze3dwn) + tsa(ji,jj,jkdown,jp_sal)*ze3dwn )/ze3tot |
---|
[3] | 171 | zraua = ( zraua*(ze3tot-ze3dwn) + zrhop(ji,jj,jkdown)*ze3dwn )/ze3tot |
---|
| 172 | inpci = inpci+1 |
---|
| 173 | END DO |
---|
| 174 | ikdown = ikbot-1 |
---|
| 175 | 240 CONTINUE |
---|
[503] | 176 | ! |
---|
[3] | 177 | DO jkp = ikup, ikdown-1 |
---|
[2528] | 178 | tsa (ji,jj,jkp,jp_tem) = zta |
---|
| 179 | tsa (ji,jj,jkp,jp_sal) = zsa |
---|
| 180 | zrhop(ji,jj,jkp ) = zraua |
---|
[3] | 181 | END DO |
---|
| 182 | IF (ikdown == ikbot-1 .AND. zraua >= zrhop(ji,jj,ikdown) ) THEN |
---|
[2528] | 183 | tsa (ji,jj,jkp,jp_tem) = zta |
---|
| 184 | tsa (ji,jj,jkp,jp_sal) = zsa |
---|
| 185 | zrhop(ji,jj,ikdown ) = zraua |
---|
[3] | 186 | ENDIF |
---|
| 187 | END DO |
---|
| 188 | ENDIF |
---|
| 189 | 200 CONTINUE |
---|
| 190 | END DO |
---|
| 191 | ! <<-- no more static instability on slab jj |
---|
| 192 | ENDIF |
---|
| 193 | ! ! =============== |
---|
| 194 | END DO ! End of slab |
---|
| 195 | ! ! =============== |
---|
[503] | 196 | ! |
---|
| 197 | IF( l_trdtra ) THEN ! save the Non penetrative mixing trends for diagnostic |
---|
[2528] | 198 | ztrdt(:,:,:) = tsa(:,:,:,jp_tem) - ztrdt(:,:,:) |
---|
| 199 | ztrds(:,:,:) = tsa(:,:,:,jp_sal) - ztrds(:,:,:) |
---|
| 200 | CALL trd_tra( kt, 'TRA', jp_tem, jptra_trd_npc, ztrdt ) |
---|
| 201 | CALL trd_tra( kt, 'TRA', jp_sal, jptra_trd_npc, ztrds ) |
---|
[216] | 202 | ENDIF |
---|
[3] | 203 | |
---|
[1111] | 204 | ! Lateral boundary conditions on ( ta, sa ) ( Unchanged sign) |
---|
[3] | 205 | ! ------------------------------============ |
---|
[2690] | 206 | CALL lbc_lnk( tsa(:,:,:,jp_tem), 'T', 1. ) ; CALL lbc_lnk( tsa(:,:,:,jp_sal), 'T', 1. ) |
---|
[3] | 207 | |
---|
| 208 | |
---|
| 209 | ! 2. non penetrative convective scheme statistics |
---|
| 210 | ! ----------------------------------------------- |
---|
[1537] | 211 | IF( nn_npcp /= 0 .AND. MOD( kt, nn_npcp ) == 0 ) THEN |
---|
[3] | 212 | IF(lwp) WRITE(numout,*)' kt=',kt, ' number of statically instable', & |
---|
[503] | 213 | & ' water column : ',inpcc, ' number of iteration : ',inpci |
---|
[3] | 214 | ENDIF |
---|
[503] | 215 | ! |
---|
[3] | 216 | ENDIF |
---|
[503] | 217 | ! |
---|
[2690] | 218 | IF( wrk_not_released(3, 1,2,3) .OR. & |
---|
| 219 | wrk_not_released_xz(1,2,3) ) CALL ctl_stop('tra_npc: failed to release workspace arrays') |
---|
[2590] | 220 | ! |
---|
[3] | 221 | END SUBROUTINE tra_npc |
---|
| 222 | |
---|
| 223 | !!====================================================================== |
---|
| 224 | END MODULE tranpc |
---|