[5790] | 1 | MODULE iscplhsb |
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| 2 | !!====================================================================== |
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[7646] | 3 | !! *** MODULE iscplhsb *** |
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[5790] | 4 | !! Ocean forcing: ice sheet/ocean coupling (conservation) |
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| 5 | !!===================================================================== |
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| 6 | !! History : NEMO ! 2015-01 P. Mathiot: original |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! iscpl_alloc : variable allocation |
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| 11 | !! iscpl_hsb : compute and store the input of heat/salt/volume |
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| 12 | !! into the system due to the coupling process |
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| 13 | !! iscpl_div : correction of divergence to keep volume conservation |
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| 14 | !!---------------------------------------------------------------------- |
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| 15 | USE dom_oce ! ocean space and time domain |
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| 16 | USE domwri ! ocean space and time domain |
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| 17 | USE phycst ! physical constants |
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| 18 | USE sbc_oce ! surface boundary condition variables |
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| 19 | USE oce ! global tra/dyn variable |
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| 20 | USE in_out_manager ! I/O manager |
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| 21 | USE lib_mpp ! MPP library |
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| 22 | USE lib_fortran ! MPP library |
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| 23 | USE wrk_nemo ! Memory allocation |
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| 24 | USE lbclnk ! |
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| 25 | USE domngb ! |
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| 26 | USE iscplini |
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| 27 | |
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| 28 | IMPLICIT NONE |
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| 29 | PRIVATE |
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| 30 | |
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| 31 | PUBLIC iscpl_div |
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| 32 | PUBLIC iscpl_cons |
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| 33 | !! * Substitutions |
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[5920] | 34 | # include "vectopt_loop_substitute.h90" |
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[5790] | 35 | !!---------------------------------------------------------------------- |
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| 36 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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[8730] | 37 | !! $Id$ |
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[5790] | 38 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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| 39 | !!---------------------------------------------------------------------- |
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| 40 | CONTAINS |
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| 41 | |
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| 42 | SUBROUTINE iscpl_cons(ptmask_b, psmask_b, pe3t_b, pts_flx, pvol_flx, prdt_iscpl) |
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| 43 | !!---------------------------------------------------------------------- |
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| 44 | !! *** ROUTINE iscpl_cons *** |
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| 45 | !! |
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| 46 | !! ** Purpose : compute input into the system during the coupling step |
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| 47 | !! compute the correction term |
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| 48 | !! compute where the correction have to be applied |
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| 49 | !! |
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| 50 | !! ** Method : compute tsn*e3t-tsb*e3tb and e3t-e3t_b |
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| 51 | !!---------------------------------------------------------------------- |
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| 52 | REAL(wp), DIMENSION(:,:,: ), INTENT(in ) :: ptmask_b !! mask before |
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| 53 | REAL(wp), DIMENSION(:,:,: ), INTENT(in ) :: pe3t_b !! scale factor before |
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| 54 | REAL(wp), DIMENSION(:,: ), INTENT(in ) :: psmask_b !! mask before |
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| 55 | REAL(wp), DIMENSION(:,:,:,:), INTENT(out) :: pts_flx !! corrective flux to have tracer conservation |
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| 56 | REAL(wp), DIMENSION(:,:,: ), INTENT(out) :: pvol_flx !! corrective flux to have volume conservation |
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| 57 | REAL(wp), INTENT(in ) :: prdt_iscpl !! coupling period |
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| 58 | !! |
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[5920] | 59 | INTEGER :: ji, jj, jk !! loop index |
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[5790] | 60 | INTEGER :: jip1, jim1, jjp1, jjm1 |
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| 61 | !! |
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| 62 | REAL(wp):: summsk, zsum, zsum1, zarea, zsumn, zsumb |
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[5920] | 63 | REAL(wp):: r1_rdtiscpl |
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[5820] | 64 | REAL(wp):: zjip1_ratio , zjim1_ratio , zjjp1_ratio , zjjm1_ratio |
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[5790] | 65 | !! |
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[5920] | 66 | REAL(wp):: zde3t, zdtem, zdsal |
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| 67 | REAL(wp), DIMENSION(:,:), POINTER :: zdssh |
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| 68 | !! |
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| 69 | REAL(wp), DIMENSION(:), ALLOCATABLE :: zlon, zlat |
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| 70 | REAL(wp), DIMENSION(:), ALLOCATABLE :: zcorr_vol, zcorr_tem, zcorr_sal |
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[5945] | 71 | INTEGER , DIMENSION(:), ALLOCATABLE :: ixpts, iypts, izpts, inpts |
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[5790] | 72 | INTEGER :: jpts, npts |
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| 73 | |
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[5920] | 74 | CALL wrk_alloc(jpi,jpj, zdssh ) |
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[5790] | 75 | |
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[5920] | 76 | ! get imbalance (volume heat and salt) |
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| 77 | ! initialisation difference |
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| 78 | zde3t = 0.0_wp; zdsal = 0.0_wp ; zdtem = 0.0_wp |
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| 79 | |
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| 80 | ! initialisation correction term |
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[5802] | 81 | pvol_flx(:,:,: ) = 0.0_wp |
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| 82 | pts_flx (:,:,:,:) = 0.0_wp |
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[5920] | 83 | |
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| 84 | r1_rdtiscpl = 1._wp / prdt_iscpl |
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[5790] | 85 | |
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[5820] | 86 | ! mask tsn and tsb |
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[5802] | 87 | tsb(:,:,:,jp_tem)=tsb(:,:,:,jp_tem)*ptmask_b(:,:,:); tsn(:,:,:,jp_tem)=tsn(:,:,:,jp_tem)*tmask(:,:,:); |
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| 88 | tsb(:,:,:,jp_sal)=tsb(:,:,:,jp_sal)*ptmask_b(:,:,:); tsn(:,:,:,jp_sal)=tsn(:,:,:,jp_sal)*tmask(:,:,:); |
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[5790] | 89 | |
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[5835] | 90 | !============================================================================== |
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| 91 | ! diagnose the heat, salt and volume input and compute the correction variable |
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| 92 | !============================================================================== |
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[5790] | 93 | |
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[5835] | 94 | ! |
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[5920] | 95 | zdssh(:,:) = sshn(:,:) * ssmask(:,:) - sshb(:,:) * psmask_b(:,:) |
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[6075] | 96 | IF (.NOT. ln_linssh ) zdssh = 0.0_wp ! already included in the levels by definition |
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[5835] | 97 | |
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[5802] | 98 | DO jk = 1,jpk-1 |
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[5920] | 99 | DO jj = 2,jpj-1 |
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| 100 | DO ji = fs_2,fs_jpim1 |
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[5802] | 101 | IF (tmask_h(ji,jj) == 1._wp) THEN |
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[5790] | 102 | |
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[5820] | 103 | ! volume differences |
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[6074] | 104 | zde3t = e3t_n(ji,jj,jk) * tmask(ji,jj,jk) - pe3t_b(ji,jj,jk) * ptmask_b(ji,jj,jk) |
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[5790] | 105 | |
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[5820] | 106 | ! heat diff |
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[6074] | 107 | zdtem = tsn(ji,jj,jk,jp_tem) * e3t_n(ji,jj,jk) * tmask (ji,jj,jk) & |
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[5920] | 108 | - tsb(ji,jj,jk,jp_tem) * pe3t_b (ji,jj,jk) * ptmask_b(ji,jj,jk) |
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[5820] | 109 | ! salt diff |
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[6074] | 110 | zdsal = tsn(ji,jj,jk,jp_sal) * e3t_n(ji,jj,jk) * tmask (ji,jj,jk) & |
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[5920] | 111 | - tsb(ji,jj,jk,jp_sal) * pe3t_b (ji,jj,jk) * ptmask_b(ji,jj,jk) |
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[5802] | 112 | |
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[5820] | 113 | ! shh changes |
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| 114 | IF ( ptmask_b(ji,jj,jk) == 1._wp .OR. tmask(ji,jj,jk) == 1._wp ) THEN |
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[5920] | 115 | zde3t = zde3t + zdssh(ji,jj) ! zdssh = 0 if vvl |
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| 116 | zdssh(ji,jj) = 0._wp |
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[5820] | 117 | END IF |
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[5790] | 118 | |
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[5820] | 119 | ! volume, heat and salt differences in each cell |
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[5920] | 120 | pvol_flx(ji,jj,jk) = pvol_flx(ji,jj,jk) + zde3t * r1_rdtiscpl |
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| 121 | pts_flx (ji,jj,jk,jp_sal)= pts_flx (ji,jj,jk,jp_sal) + zdsal * r1_rdtiscpl |
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| 122 | pts_flx (ji,jj,jk,jp_tem)= pts_flx (ji,jj,jk,jp_tem) + zdtem * r1_rdtiscpl |
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[5790] | 123 | |
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[5835] | 124 | ! case where we close a cell: check if the neighbour cells are wet |
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[5820] | 125 | IF ( tmask(ji,jj,jk) == 0._wp .AND. ptmask_b(ji,jj,jk) == 1._wp ) THEN |
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[5790] | 126 | |
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[5820] | 127 | jip1=ji+1 ; jim1=ji-1 ; jjp1=jj+1 ; jjm1=jj-1 ; |
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[5790] | 128 | |
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[5964] | 129 | zsum = e1e2t(ji ,jjp1) * tmask(ji ,jjp1,jk) + e1e2t(ji ,jjm1) * tmask(ji ,jjm1,jk) & |
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| 130 | & + e1e2t(jim1,jj ) * tmask(jim1,jj ,jk) + e1e2t(jip1,jj ) * tmask(jip1,jj ,jk) |
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[5790] | 131 | |
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[5945] | 132 | IF ( zsum /= 0._wp ) THEN |
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[5964] | 133 | zjip1_ratio = e1e2t(jip1,jj ) * tmask(jip1,jj ,jk) / zsum |
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| 134 | zjim1_ratio = e1e2t(jim1,jj ) * tmask(jim1,jj ,jk) / zsum |
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| 135 | zjjp1_ratio = e1e2t(ji ,jjp1) * tmask(ji ,jjp1,jk) / zsum |
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| 136 | zjjm1_ratio = e1e2t(ji ,jjm1) * tmask(ji ,jjm1,jk) / zsum |
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[5790] | 137 | |
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[5820] | 138 | pvol_flx(ji ,jjp1,jk ) = pvol_flx(ji ,jjp1,jk ) + pvol_flx(ji,jj,jk ) * zjjp1_ratio |
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| 139 | pvol_flx(ji ,jjm1,jk ) = pvol_flx(ji ,jjm1,jk ) + pvol_flx(ji,jj,jk ) * zjjm1_ratio |
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| 140 | pvol_flx(jip1,jj ,jk ) = pvol_flx(jip1,jj ,jk ) + pvol_flx(ji,jj,jk ) * zjip1_ratio |
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| 141 | pvol_flx(jim1,jj ,jk ) = pvol_flx(jim1,jj ,jk ) + pvol_flx(ji,jj,jk ) * zjim1_ratio |
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| 142 | pts_flx (ji ,jjp1,jk,jp_sal) = pts_flx (ji ,jjp1,jk,jp_sal) + pts_flx (ji,jj,jk,jp_sal) * zjjp1_ratio |
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| 143 | pts_flx (ji ,jjm1,jk,jp_sal) = pts_flx (ji ,jjm1,jk,jp_sal) + pts_flx (ji,jj,jk,jp_sal) * zjjm1_ratio |
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| 144 | pts_flx (jip1,jj ,jk,jp_sal) = pts_flx (jip1,jj ,jk,jp_sal) + pts_flx (ji,jj,jk,jp_sal) * zjip1_ratio |
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| 145 | pts_flx (jim1,jj ,jk,jp_sal) = pts_flx (jim1,jj ,jk,jp_sal) + pts_flx (ji,jj,jk,jp_sal) * zjim1_ratio |
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| 146 | pts_flx (ji ,jjp1,jk,jp_tem) = pts_flx (ji ,jjp1,jk,jp_tem) + pts_flx (ji,jj,jk,jp_tem) * zjjp1_ratio |
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| 147 | pts_flx (ji ,jjm1,jk,jp_tem) = pts_flx (ji ,jjm1,jk,jp_tem) + pts_flx (ji,jj,jk,jp_tem) * zjjm1_ratio |
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| 148 | pts_flx (jip1,jj ,jk,jp_tem) = pts_flx (jip1,jj ,jk,jp_tem) + pts_flx (ji,jj,jk,jp_tem) * zjip1_ratio |
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| 149 | pts_flx (jim1,jj ,jk,jp_tem) = pts_flx (jim1,jj ,jk,jp_tem) + pts_flx (ji,jj,jk,jp_tem) * zjim1_ratio |
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[5790] | 150 | |
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[5802] | 151 | ! set to 0 the cell we distributed over neigbourg cells |
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| 152 | pvol_flx(ji,jj,jk ) = 0._wp |
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| 153 | pts_flx (ji,jj,jk,jp_sal) = 0._wp |
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| 154 | pts_flx (ji,jj,jk,jp_tem) = 0._wp |
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[5820] | 155 | |
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[5945] | 156 | ELSE IF (zsum == 0._wp ) THEN |
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[5820] | 157 | ! case where we close a cell and no adjacent cell open |
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| 158 | ! check if the cell beneath is wet |
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[5945] | 159 | IF ( tmask(ji,jj,jk+1) == 1._wp ) THEN |
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[5820] | 160 | pvol_flx(ji,jj,jk+1) = pvol_flx(ji,jj,jk+1) + pvol_flx(ji,jj,jk) |
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| 161 | pts_flx (ji,jj,jk+1,jp_sal)= pts_flx (ji,jj,jk+1,jp_sal) + pts_flx (ji,jj,jk,jp_sal) |
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| 162 | pts_flx (ji,jj,jk+1,jp_tem)= pts_flx (ji,jj,jk+1,jp_tem) + pts_flx (ji,jj,jk,jp_tem) |
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| 163 | |
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| 164 | ! set to 0 the cell we distributed over neigbourg cells |
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| 165 | pvol_flx(ji,jj,jk ) = 0._wp |
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| 166 | pts_flx (ji,jj,jk,jp_sal) = 0._wp |
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| 167 | pts_flx (ji,jj,jk,jp_tem) = 0._wp |
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| 168 | ELSE |
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| 169 | ! case no adjacent cell on the horizontal and on the vertical |
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[5945] | 170 | IF ( lwp ) THEN ! JMM : cAution this warning may occur on any mpp subdomain but numout is only |
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| 171 | ! open for narea== 1 (lwp=T) |
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[5820] | 172 | WRITE(numout,*) 'W A R N I N G iscpl: no adjacent cell on the vertical and horizontal' |
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| 173 | WRITE(numout,*) ' ',mig(ji),' ',mjg(jj),' ',jk |
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| 174 | WRITE(numout,*) ' ',ji,' ',jj,' ',jk,' ',narea |
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| 175 | WRITE(numout,*) ' we are now looking for the closest wet cell on the horizontal ' |
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[5945] | 176 | ENDIF |
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[5820] | 177 | ! We deal with these points later. |
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| 178 | END IF |
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[5802] | 179 | END IF |
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| 180 | END IF |
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| 181 | END IF |
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| 182 | END DO |
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| 183 | END DO |
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| 184 | END DO |
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[5790] | 185 | |
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[5802] | 186 | CALL lbc_sum(pvol_flx(:,:,: ),'T',1.) |
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| 187 | CALL lbc_sum(pts_flx (:,:,:,jp_sal),'T',1.) |
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| 188 | CALL lbc_sum(pts_flx (:,:,:,jp_tem),'T',1.) |
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[5790] | 189 | |
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[5802] | 190 | ! if no neighbour wet cell in case of 2close a cell", need to find the nearest wet point |
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| 191 | ! allocation and initialisation of the list of problematic point |
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[5945] | 192 | ALLOCATE(inpts(jpnij)) |
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| 193 | inpts(:)=0 |
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[5790] | 194 | |
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[5802] | 195 | ! fill narea location with the number of problematic point |
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| 196 | DO jk = 1,jpk-1 |
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[5920] | 197 | DO jj = 2,jpj-1 |
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| 198 | DO ji = fs_2,fs_jpim1 |
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[5820] | 199 | IF ( ptmask_b(ji,jj,jk) == 1._wp .AND. tmask(ji,jj,jk+1) == 0._wp .AND. tmask_h(ji,jj) == 1._wp & |
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| 200 | .AND. SUM(tmask(ji-1:ji+1,jj,jk)) + SUM(tmask(ji,jj-1:jj+1,jk)) == 0._wp) THEN |
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[5945] | 201 | inpts(narea) = inpts(narea) + 1 |
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[5802] | 202 | END IF |
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| 203 | END DO |
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| 204 | END DO |
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| 205 | END DO |
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[5790] | 206 | |
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[5802] | 207 | ! build array of total problematic point on each cpu (share to each cpu) |
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[5945] | 208 | CALL mpp_max(inpts,jpnij) |
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[5790] | 209 | |
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[5802] | 210 | ! size of the new variable |
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[5945] | 211 | npts = SUM(inpts) |
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[5802] | 212 | |
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| 213 | ! allocation of the coordinates, correction, index vector for the problematic points |
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| 214 | ALLOCATE(ixpts(npts), iypts(npts), izpts(npts), zcorr_vol(npts), zcorr_sal(npts), zcorr_tem(npts), zlon(npts), zlat(npts)) |
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[5945] | 215 | ixpts(:) = -9999 ; iypts(:) = -9999 ; izpts(:) = -9999 ; zlon(:) = -1.0e20_wp ; zlat(:) = -1.0e20_wp |
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| 216 | zcorr_vol(:) = -1.0e20_wp |
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| 217 | zcorr_sal(:) = -1.0e20_wp |
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| 218 | zcorr_tem(:) = -1.0e20_wp |
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[5790] | 219 | |
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[5802] | 220 | ! fill new variable |
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[5945] | 221 | jpts = SUM(inpts(1:narea-1)) |
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[5802] | 222 | DO jk = 1,jpk-1 |
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[5920] | 223 | DO jj = 2,jpj-1 |
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| 224 | DO ji = fs_2,fs_jpim1 |
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[5820] | 225 | IF ( ptmask_b(ji,jj,jk) == 1._wp .AND. tmask(ji,jj,jk+1) == 0._wp .AND. tmask_h(ji,jj) == 1._wp & |
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| 226 | .AND. SUM(tmask(ji-1:ji+1,jj,jk)) + SUM(tmask(ji,jj-1:jj+1,jk)) == 0._wp) THEN |
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[5945] | 227 | jpts = jpts + 1 ! positioning in the inpts vector for the area narea |
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[5802] | 228 | ixpts(jpts) = ji ; iypts(jpts) = jj ; izpts(jpts) = jk |
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| 229 | zlon (jpts) = glamt(ji,jj) ; zlat (jpts) = gphit(ji,jj) |
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| 230 | zcorr_vol(jpts) = pvol_flx(ji,jj,jk) |
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| 231 | zcorr_sal(jpts) = pts_flx (ji,jj,jk,jp_sal) |
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| 232 | zcorr_tem(jpts) = pts_flx (ji,jj,jk,jp_tem) |
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[5820] | 233 | |
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[5802] | 234 | ! set flx to 0 (safer) |
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| 235 | pvol_flx(ji,jj,jk ) = 0.0_wp |
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| 236 | pts_flx (ji,jj,jk,jp_sal) = 0.0_wp |
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| 237 | pts_flx (ji,jj,jk,jp_tem) = 0.0_wp |
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| 238 | END IF |
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| 239 | END DO |
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| 240 | END DO |
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| 241 | END DO |
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[5790] | 242 | |
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[5802] | 243 | ! build array of total problematic point on each cpu (share to each cpu) |
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[5820] | 244 | ! point coordinates |
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[5802] | 245 | CALL mpp_max(zlat ,npts) |
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| 246 | CALL mpp_max(zlon ,npts) |
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| 247 | CALL mpp_max(izpts,npts) |
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| 248 | |
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[5820] | 249 | ! correction values |
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| 250 | CALL mpp_max(zcorr_vol,npts) |
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| 251 | CALL mpp_max(zcorr_sal,npts) |
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| 252 | CALL mpp_max(zcorr_tem,npts) |
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| 253 | |
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[5802] | 254 | ! put correction term in the closest cell |
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| 255 | DO jpts = 1,npts |
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| 256 | CALL dom_ngb(zlon(jpts), zlat(jpts), ixpts(jpts), iypts(jpts),'T', izpts(jpts)) |
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| 257 | DO jj = mj0(iypts(jpts)),mj1(iypts(jpts)) |
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| 258 | DO ji = mi0(ixpts(jpts)),mi1(ixpts(jpts)) |
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| 259 | jk = izpts(jpts) |
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[5820] | 260 | |
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| 261 | IF (tmask_h(ji,jj) == 1._wp) THEN |
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| 262 | ! correct the vol_flx in the closest cell |
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| 263 | pvol_flx(ji,jj,jk) = pvol_flx(ji,jj,jk ) + zcorr_vol(jpts) |
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| 264 | pts_flx (ji,jj,jk,jp_sal) = pts_flx (ji,jj,jk,jp_sal) + zcorr_sal(jpts) |
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| 265 | pts_flx (ji,jj,jk,jp_tem) = pts_flx (ji,jj,jk,jp_tem) + zcorr_tem(jpts) |
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| 266 | |
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| 267 | ! set correction to 0 |
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| 268 | zcorr_vol(jpts) = 0.0_wp |
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| 269 | zcorr_sal(jpts) = 0.0_wp |
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| 270 | zcorr_tem(jpts) = 0.0_wp |
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| 271 | END IF |
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[5802] | 272 | END DO |
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| 273 | END DO |
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| 274 | END DO |
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[5820] | 275 | |
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[5802] | 276 | ! deallocate variables |
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[5945] | 277 | DEALLOCATE(inpts) |
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[5802] | 278 | DEALLOCATE(ixpts, iypts, izpts, zcorr_vol, zcorr_sal, zcorr_tem, zlon, zlat) |
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| 279 | |
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| 280 | ! add contribution store on the hallo (lbclnk remove one of the contribution) |
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| 281 | pvol_flx(:,:,: ) = pvol_flx(:,:,: ) * tmask(:,:,:) |
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| 282 | pts_flx (:,:,:,jp_sal) = pts_flx (:,:,:,jp_sal) * tmask(:,:,:) |
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| 283 | pts_flx (:,:,:,jp_tem) = pts_flx (:,:,:,jp_tem) * tmask(:,:,:) |
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| 284 | |
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[5820] | 285 | ! compute sum over the halo and set it to 0. |
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| 286 | CALL lbc_sum(pvol_flx(:,:,: ),'T',1._wp) |
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| 287 | CALL lbc_sum(pts_flx (:,:,:,jp_sal),'T',1._wp) |
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| 288 | CALL lbc_sum(pts_flx (:,:,:,jp_tem),'T',1._wp) |
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[5802] | 289 | |
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[5820] | 290 | ! deallocate variables |
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[5920] | 291 | CALL wrk_dealloc(jpi,jpj, zdssh ) |
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| 292 | |
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[5790] | 293 | END SUBROUTINE iscpl_cons |
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| 294 | |
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| 295 | SUBROUTINE iscpl_div( phdivn ) |
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| 296 | !!---------------------------------------------------------------------- |
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| 297 | !! *** ROUTINE iscpl_div *** |
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| 298 | !! |
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| 299 | !! ** Purpose : update the horizontal divergenc |
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| 300 | !! |
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| 301 | !! ** Method : |
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| 302 | !! CAUTION : iscpl is positive (inflow) and expressed in m/s |
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| 303 | !! |
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| 304 | !! ** Action : phdivn increase by the iscpl correction term |
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| 305 | !!---------------------------------------------------------------------- |
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| 306 | REAL(wp), DIMENSION(:,:,:), INTENT(inout) :: phdivn ! horizontal divergence |
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| 307 | !! |
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| 308 | INTEGER :: ji, jj, jk ! dummy loop indices |
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| 309 | !!---------------------------------------------------------------------- |
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| 310 | ! |
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| 311 | DO jk = 1, jpk |
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| 312 | DO jj = 1, jpj |
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| 313 | DO ji = 1, jpi |
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[6074] | 314 | phdivn(ji,jj,jk) = phdivn(ji,jj,jk) + hdiv_iscpl(ji,jj,jk) / e3t_n(ji,jj,jk) |
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[5790] | 315 | END DO |
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| 316 | END DO |
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| 317 | END DO |
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| 318 | ! |
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| 319 | END SUBROUTINE iscpl_div |
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| 320 | |
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| 321 | END MODULE iscplhsb |
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