| 1 | MODULE isfcpl |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE isfcpl *** |
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| 4 | !! |
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| 5 | !! iceshelf coupling module : module managing the coupling between NEMO and an ice sheet model |
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| 6 | !! |
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| 7 | !!====================================================================== |
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| 8 | !! History : 4.1 ! 2019-07 (P. Mathiot) Original code |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | !! isfrst : read/write iceshelf variables in/from restart |
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| 13 | !!---------------------------------------------------------------------- |
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| 14 | USE isf ! ice shelf variable |
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| 15 | USE lib_mpp, ONLY: mpp_sum, mpp_max ! mpp routine |
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| 16 | USE domvvl , ONLY: dom_vvl_zgr ! vertical scale factor interpolation |
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| 17 | ! |
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| 18 | USE oce ! ocean dynamics and tracers |
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| 19 | USE in_out_manager ! I/O manager |
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| 20 | USE iom ! I/O library |
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| 21 | ! |
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| 22 | IMPLICIT NONE |
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| 23 | |
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| 24 | PRIVATE |
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| 25 | |
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| 26 | PUBLIC isfcpl_rst_write, isfcpl_init ! iceshelf restart read and write |
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| 27 | PUBLIC isfcpl_ssh, isfcpl_tra, isfcpl_vol, isfcpl_cons |
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| 28 | |
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| 29 | TYPE isfcons |
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| 30 | INTEGER :: ii ! i global |
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| 31 | INTEGER :: jj ! j global |
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| 32 | INTEGER :: kk ! k level |
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| 33 | REAL(wp):: dvol ! volume increment |
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| 34 | REAL(wp):: dsal ! salt increment |
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| 35 | REAL(wp):: dtem ! heat increment |
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| 36 | REAL(wp):: lon ! lon |
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| 37 | REAL(wp):: lat ! lat |
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| 38 | INTEGER :: ngb ! 0/1 (valid location or not (ie on halo or no neigbourg)) |
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| 39 | END TYPE |
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| 40 | ! |
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| 41 | !!---------------------------------------------------------------------- |
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| 42 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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| 43 | !! $Id: sbcisf.F90 10536 2019-01-16 19:21:09Z mathiot $ |
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| 44 | !! Software governed by the CeCILL license (see ./LICENSE) |
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| 45 | !!---------------------------------------------------------------------- |
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| 46 | CONTAINS |
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| 47 | SUBROUTINE isfcpl_init() |
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| 48 | ! |
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| 49 | ! start on an euler time step |
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| 50 | neuler = 0 |
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| 51 | ! |
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| 52 | CALL isf_alloc_cpl() |
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| 53 | ! |
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| 54 | ! extrapolation ssh |
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| 55 | CALL isfcpl_ssh() |
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| 56 | ! |
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| 57 | ! extrapolation tracer properties |
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| 58 | CALL isfcpl_tra() |
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| 59 | ! |
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| 60 | ! correction of the horizontal divergence and associated temp. and salt content flux |
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| 61 | ! Need to : - include in the cpl cons the risfcpl_vol/tsc contribution |
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| 62 | ! - decide how to manage thickness level change in conservation |
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| 63 | CALL isfcpl_vol() |
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| 64 | ! |
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| 65 | ! apply the 'conservation' method |
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| 66 | IF ( ln_isfcpl_cons ) CALL isfcpl_cons() |
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| 67 | ! |
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| 68 | ! mask velocity properly (mask used in restart not compatible with new mask) |
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| 69 | un(:,:,:) = un(:,:,:) * umask(:,:,:) |
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| 70 | vn(:,:,:) = vn(:,:,:) * vmask(:,:,:) |
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| 71 | ! |
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| 72 | ! all before fields set to now values |
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| 73 | tsb (:,:,:,:) = tsn (:,:,:,:) |
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| 74 | ub (:,:,:) = un (:,:,:) |
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| 75 | vb (:,:,:) = vn (:,:,:) |
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| 76 | sshb (:,:) = sshn (:,:) |
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| 77 | e3t_b(:,:,:) = e3t_n(:,:,:) |
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| 78 | |
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| 79 | ! prepare writing restart |
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| 80 | IF( lwxios ) THEN |
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| 81 | CALL iom_set_rstw_var_active('ssmask') |
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| 82 | CALL iom_set_rstw_var_active('tmask') |
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| 83 | CALL iom_set_rstw_var_active('e3t_n') |
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| 84 | CALL iom_set_rstw_var_active('e3u_n') |
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| 85 | CALL iom_set_rstw_var_active('e3v_n') |
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| 86 | END IF |
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| 87 | ! |
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| 88 | END SUBROUTINE isfcpl_init |
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| 89 | ! |
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| 90 | SUBROUTINE isfcpl_rst_write(kt) |
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| 91 | !!--------------------------------------------------------------------- |
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| 92 | !! isfrst_cpl_write : write icesheet coupling variables in restart |
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| 93 | !!--------------------------------------------------------------------- |
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| 94 | !!-------------------------- OUT -------------------------------------- |
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| 95 | !!-------------------------- IN -------------------------------------- |
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| 96 | INTEGER, INTENT(in) :: kt |
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| 97 | !!---------------------------------------------------------------------- |
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| 98 | !!---------------------------------------------------------------------- |
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| 99 | ! |
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| 100 | IF( lwxios ) CALL iom_swap( cwxios_context ) |
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| 101 | CALL iom_rstput( kt, nitrst, numrow, 'tmask' , tmask , ldxios = lwxios ) |
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| 102 | CALL iom_rstput( kt, nitrst, numrow, 'ssmask' , ssmask, ldxios = lwxios ) |
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| 103 | CALL iom_rstput( kt, nitrst, numrow, 'e3t_n' , e3t_n , ldxios = lwxios ) |
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| 104 | CALL iom_rstput( kt, nitrst, numrow, 'e3u_n' , e3u_n , ldxios = lwxios ) |
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| 105 | CALL iom_rstput( kt, nitrst, numrow, 'e3v_n' , e3v_n , ldxios = lwxios ) |
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| 106 | CALL iom_rstput( kt, nitrst, numrow, 'gdepw_n', gdepw_n , ldxios = lwxios ) |
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| 107 | IF( lwxios ) CALL iom_swap( cxios_context ) |
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| 108 | ! |
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| 109 | END SUBROUTINE isfcpl_rst_write |
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| 110 | |
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| 111 | SUBROUTINE isfcpl_ssh() |
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| 112 | !!---------------------------------------------------------------------- |
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| 113 | !! *** ROUTINE iscpl_ssh *** |
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| 114 | !! |
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| 115 | !! ** Purpose : basic guess of ssh in new wet cell during coupling step |
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| 116 | !! |
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| 117 | !! ** Method : basic extrapolation from neigbourg cells |
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| 118 | !! |
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| 119 | !!---------------------------------------------------------------------- |
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| 120 | !!-------------------------- OUT -------------------------------------- |
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| 121 | !!-------------------------- IN -------------------------------------- |
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| 122 | !!---------------------------------------------------------------------- |
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| 123 | !! |
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| 124 | INTEGER :: ji, jj, jd !! loop index |
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| 125 | INTEGER :: jip1, jim1, jjp1, jjm1 |
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| 126 | !! |
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| 127 | REAL(wp):: zsummsk |
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| 128 | REAL(wp), DIMENSION(jpi,jpj) :: zdssmask, zssmask0, zssmask_b, zssh |
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| 129 | !!---------------------------------------------------------------------- |
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| 130 | ! |
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| 131 | CALL iom_get( numror, jpdom_autoglo, 'ssmask' , zssmask_b, ldxios = lrxios ) ! need to extrapolate T/S |
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| 132 | |
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| 133 | ! compute new ssh if we open a full water column |
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| 134 | ! rude average of the closest neigbourgs (e1e2t not taking into account) |
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| 135 | ! |
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| 136 | zssh(:,:) = sshn(:,:) |
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| 137 | zssmask0(:,:) = zssmask_b(:,:) |
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| 138 | ! |
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| 139 | DO jd = 1, nn_drown |
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| 140 | ! |
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| 141 | zdssmask(:,:) = ssmask(:,:) - zssmask0(:,:) |
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| 142 | DO jj = 2,jpj-1 |
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| 143 | DO ji = 2,jpi-1 |
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| 144 | jip1=ji+1; jim1=ji-1; |
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| 145 | jjp1=jj+1; jjm1=jj-1; |
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| 146 | ! |
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| 147 | zsummsk = zssmask0(jip1,jj) + zssmask0(jim1,jj) + zssmask0(ji,jjp1) + zssmask0(ji,jjm1) |
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| 148 | ! |
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| 149 | IF (zdssmask(ji,jj) == 1._wp .AND. zsummsk /= 0._wp) THEN |
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| 150 | sshn(ji,jj)=( zssh(jip1,jj)*zssmask0(jip1,jj) & |
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| 151 | & + zssh(jim1,jj)*zssmask0(jim1,jj) & |
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| 152 | & + zssh(ji,jjp1)*zssmask0(ji,jjp1) & |
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| 153 | & + zssh(ji,jjm1)*zssmask0(ji,jjm1)) / zsummsk |
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| 154 | zssmask_b(ji,jj) = 1._wp |
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| 155 | ENDIF |
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| 156 | END DO |
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| 157 | END DO |
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| 158 | ! |
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| 159 | zssh(:,:) = sshn(:,:) |
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| 160 | zssmask0(:,:) = zssmask_b(:,:) |
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| 161 | ! |
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| 162 | CALL lbc_lnk_multi( 'iscplrst', zssh, 'T', 1., zssmask0, 'T', 1. ) |
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| 163 | ! |
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| 164 | END DO |
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| 165 | ! |
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| 166 | ! update sshn |
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| 167 | sshn(:,:) = zssh(:,:) * ssmask(:,:) |
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| 168 | ! |
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| 169 | sshb(:,:) = sshn(:,:) |
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| 170 | ! |
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| 171 | ! recompute the vertical scale factor, depth and water thickness |
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| 172 | CALL dom_vvl_zgr() |
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| 173 | ! |
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| 174 | END SUBROUTINE isfcpl_ssh |
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| 175 | |
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| 176 | SUBROUTINE isfcpl_tra() |
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| 177 | !!---------------------------------------------------------------------- |
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| 178 | !! *** ROUTINE iscpl_tra *** |
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| 179 | !! |
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| 180 | !! ** Purpose : compute new tn, sn in case of evolving geometry of ice shelves |
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| 181 | !! |
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| 182 | !! ** Method : tn, sn : basic extrapolation from neigbourg cells |
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| 183 | !! |
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| 184 | !!---------------------------------------------------------------------- |
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| 185 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ztmask_b |
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| 186 | !REAL(wp), DIMENSION(:,:,: ), INTENT(in ) :: pdepw_b !! depth w before |
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| 187 | !! |
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| 188 | INTEGER :: ji, jj, jk, jd !! loop index |
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| 189 | INTEGER :: jip1, jim1, jjp1, jjm1, jkp1, jkm1 |
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| 190 | !! |
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| 191 | REAL(wp):: zsummsk |
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| 192 | REAL(wp):: zdz, zdzm1, zdzp1 |
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| 193 | !! |
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| 194 | REAL(wp), DIMENSION(jpi,jpj) :: zdmask |
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| 195 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ztmask0, zwmaskn |
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| 196 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ztmask1, zwmaskb, ztmp3d |
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| 197 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts) :: zts0 |
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| 198 | !!---------------------------------------------------------------------- |
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| 199 | ! |
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| 200 | IF(lwp) WRITE(numout,*) ' isfrst_cpl_read: read ice sheet coupling restart variable ' |
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| 201 | IF(lwp) WRITE(numout,*) ' ~~~~~~~~~~~~~~~' |
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| 202 | IF(lwp) WRITE(numout,*) '' |
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| 203 | ! |
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| 204 | CALL iom_get( numror, jpdom_autoglo, 'tmask' , ztmask_b, ldxios = lrxios ) ! need to extrapolate T/S |
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| 205 | !CALL iom_get( numror, jpdom_autoglo, 'wmask' , zwmask_b, ldxios = lrxios ) ! need to extrapolate T/S |
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| 206 | !CALL iom_get( numror, jpdom_autoglo, 'gdepw_n', zdepw_b(:,:,:), ldxios = lrxios ) ! need to interpol vertical profile (vvl) |
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| 207 | ! |
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| 208 | ! |
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| 209 | ! compute new T/S (interpolation) if vvl only for common wet cell in before and after wmask |
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| 210 | !PM: Is this IF needed since change to VVL by default |
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| 211 | !bugged : to be corrected (PM) |
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| 212 | ! back up original t/s/mask |
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| 213 | !tsb (:,:,:,:) = tsn(:,:,:,:) |
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| 214 | ! |
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| 215 | ! compute new T/S (interpolation) if vvl only for common wet cell in before and after wmask |
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| 216 | |
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| 217 | ! IF (.NOT.ln_linssh) THEN |
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| 218 | ! DO jk = 2,jpk-1 |
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| 219 | ! DO jj = 1,jpj |
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| 220 | ! DO ji = 1,jpi |
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| 221 | ! IF (wmask(ji,jj,jk) * zwmaskb(ji,jj,jk) == 1._wp .AND. (tmask(ji,jj,1)==0._wp .OR. ztmask_b(ji,jj,1)==0._wp) ) THEN |
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| 222 | ! |
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| 223 | ! !compute weight |
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| 224 | ! zdzp1 = MAX(0._wp,pdepw_b(ji,jj,jk+1) - gdepw_n(ji,jj,jk+1)) |
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| 225 | ! zdzm1 = MAX(0._wp,gdepw_n(ji,jj,jk ) - pdepw_b(ji,jj,jk )) |
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| 226 | ! zdz = e3t_n(ji,jj,jk) - zdzp1 - zdzm1 ! if isf : e3t = gdepw_n(ji,jj,jk+1)- gdepw_n(ji,jj,jk) |
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| 227 | ! |
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| 228 | ! IF (zdz .LT. 0._wp) THEN |
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| 229 | ! CALL ctl_stop( 'STOP', 'rst_iscpl : unable to compute the interpolation' ) |
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| 230 | ! END IF |
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| 231 | ! |
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| 232 | ! tsn(ji,jj,jk,jp_tem) = ( zdzp1*tsb(ji,jj,jk+1,jp_tem) & |
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| 233 | ! & + zdz *tsb(ji,jj,jk ,jp_tem) & |
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| 234 | ! & + zdzm1*tsb(ji,jj,jk-1,jp_tem) )/e3t_n(ji,jj,jk) |
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| 235 | ! |
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| 236 | ! tsn(ji,jj,jk,jp_sal) = ( zdzp1*tsb(ji,jj,jk+1,jp_sal) & |
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| 237 | ! & + zdz *tsb(ji,jj,jk ,jp_sal) & |
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| 238 | ! & + zdzm1*tsb(ji,jj,jk-1,jp_sal) )/e3t_n(ji,jj,jk) |
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| 239 | ! |
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| 240 | ! END IF |
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| 241 | ! END DO |
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| 242 | ! END DO |
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| 243 | ! END DO |
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| 244 | ! END IF |
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| 245 | |
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| 246 | zts0(:,:,:,:) = tsn(:,:,:,:) |
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| 247 | ztmask0(:,:,:) = ztmask_b(:,:,:) |
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| 248 | ztmask1(:,:,:) = ztmask_b(:,:,:) |
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| 249 | ! |
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| 250 | ! iterate the extrapolation processes nn_drown times |
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| 251 | DO jd = 1,nn_drown ! resolution dependent (OK for ISOMIP+ case) |
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| 252 | DO jk = 1,jpk-1 |
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| 253 | ! |
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| 254 | ! define new wet cell |
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| 255 | zdmask(:,:) = tmask(:,:,jk) - ztmask0(:,:,jk); |
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| 256 | ! |
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| 257 | DO jj = 2,jpj-1 |
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| 258 | DO ji = 2,jpi-1 |
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| 259 | jip1=ji+1; jim1=ji-1; |
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| 260 | jjp1=jj+1; jjm1=jj-1; |
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| 261 | ! |
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| 262 | ! check if a wet neigbourg cell is present |
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| 263 | zsummsk = ztmask0(jip1,jj ,jk) + ztmask0(jim1,jj ,jk) & |
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| 264 | + ztmask0(ji ,jjp1,jk) + ztmask0(ji ,jjm1,jk) |
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| 265 | ! |
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| 266 | ! if neigbourg wet cell available at the same level |
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| 267 | IF ( zdmask(ji,jj) == 1._wp .AND. zsummsk /= 0._wp ) THEN |
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| 268 | ! |
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| 269 | ! horizontal basic extrapolation |
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| 270 | tsn(ji,jj,jk,1)=( zts0(jip1,jj ,jk,1) * ztmask0(jip1,jj ,jk) & |
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| 271 | & + zts0(jim1,jj ,jk,1) * ztmask0(jim1,jj ,jk) & |
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| 272 | & + zts0(ji ,jjp1,jk,1) * ztmask0(ji ,jjp1,jk) & |
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| 273 | & + zts0(ji ,jjm1,jk,1) * ztmask0(ji ,jjm1,jk) ) / zsummsk |
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| 274 | tsn(ji,jj,jk,2)=( zts0(jip1,jj ,jk,2) * ztmask0(jip1,jj ,jk) & |
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| 275 | & + zts0(jim1,jj ,jk,2) * ztmask0(jim1,jj ,jk) & |
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| 276 | & + zts0(ji ,jjp1,jk,2) * ztmask0(ji ,jjp1,jk) & |
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| 277 | & + zts0(ji ,jjm1,jk,2) * ztmask0(ji ,jjm1,jk) ) / zsummsk |
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| 278 | ! |
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| 279 | ! update mask for next pass |
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| 280 | ztmask1(ji,jj,jk)=1 |
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| 281 | ! |
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| 282 | ! in case no neigbourg wet cell available at the same level |
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| 283 | ! check if a wet cell is available below |
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| 284 | ELSEIF (zdmask(ji,jj) == 1._wp .AND. zsummsk == 0._wp) THEN |
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| 285 | ! |
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| 286 | ! vertical extrapolation if horizontal extrapolation failed |
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| 287 | jkm1=max(1,jk-1) ; jkp1=min(jpk,jk+1) |
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| 288 | ! |
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| 289 | ! check if a wet neigbourg cell is present |
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| 290 | zsummsk = ztmask0(ji,jj,jkm1) + ztmask0(ji,jj,jkp1) |
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| 291 | IF (zdmask(ji,jj) == 1._wp .AND. zsummsk /= 0._wp ) THEN |
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| 292 | tsn(ji,jj,jk,1)=( zts0(ji,jj,jkp1,1)*ztmask0(ji,jj,jkp1) & |
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| 293 | & + zts0(ji,jj,jkm1,1)*ztmask0(ji,jj,jkm1)) / zsummsk |
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| 294 | tsn(ji,jj,jk,2)=( zts0(ji,jj,jkp1,2)*ztmask0(ji,jj,jkp1) & |
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| 295 | & + zts0(ji,jj,jkm1,2)*ztmask0(ji,jj,jkm1)) / zsummsk |
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| 296 | ! |
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| 297 | ! update mask for next pass |
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| 298 | ztmask1(ji,jj,jk)=1._wp |
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| 299 | END IF |
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| 300 | END IF |
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| 301 | END DO |
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| 302 | END DO |
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| 303 | END DO |
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| 304 | ! |
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| 305 | ! update temperature and salinity and mask |
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| 306 | zts0(:,:,:,:) = tsn(:,:,:,:) |
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| 307 | ztmask0(:,:,:) = ztmask1(:,:,:) |
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| 308 | ! |
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| 309 | CALL lbc_lnk_multi( 'iscplrst', zts0(:,:,:,jp_tem), 'T', 1., zts0(:,:,:,jp_sal), 'T', 1., ztmask0, 'T', 1.) |
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| 310 | ! |
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| 311 | END DO ! nn_drown |
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| 312 | ! |
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| 313 | ! mask new tsn field |
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| 314 | tsn(:,:,:,jp_tem) = zts0(:,:,:,jp_tem) * tmask(:,:,:) |
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| 315 | tsn(:,:,:,jp_sal) = zts0(:,:,:,jp_sal) * tmask(:,:,:) |
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| 316 | ! |
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| 317 | tsb(:,:,:,:) = tsn(:,:,:,:) |
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| 318 | ! |
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| 319 | ! sanity check |
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| 320 | ! ----------------------------------------------------------------------------------------- |
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| 321 | ! case we open a cell but no neigbour cells available to get an estimate of T and S |
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| 322 | DO jk = 1,jpk-1 |
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| 323 | DO jj = 1,jpj |
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| 324 | DO ji = 1,jpi |
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| 325 | IF (tmask(ji,jj,jk) == 1._wp .AND. tsn(ji,jj,jk,2) == 0._wp) & |
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| 326 | & CALL ctl_stop('STOP', 'failing to fill all new weet cell, & |
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| 327 | & try increase nn_drown or activate XXXX & |
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| 328 | & in your domain cfg computation' ) |
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| 329 | END DO |
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| 330 | END DO |
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| 331 | END DO |
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| 332 | ! |
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| 333 | END SUBROUTINE isfcpl_tra |
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| 334 | |
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| 335 | SUBROUTINE isfcpl_vol() |
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| 336 | !!---------------------------------------------------------------------- |
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| 337 | !! *** ROUTINE iscpl_vol *** |
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| 338 | !! |
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| 339 | !! ** Purpose : |
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| 340 | !! |
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| 341 | !! |
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| 342 | !! ** Method : |
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| 343 | !! |
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| 344 | !!---------------------------------------------------------------------- |
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| 345 | !! |
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| 346 | INTEGER :: ji, jj, jk |
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| 347 | INTEGER :: ikb, ikt |
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| 348 | !! |
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| 349 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zqvolb, zqvoln |
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| 350 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ztmask_b |
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| 351 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ze3u_b, ze3v_b |
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| 352 | !!---------------------------------------------------------------------- |
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| 353 | ! |
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| 354 | CALL iom_get( numror, jpdom_autoglo, 'tmask' , ztmask_b, ldxios = lrxios ) ! need to extrapolate T/S |
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| 355 | CALL iom_get( numror, jpdom_autoglo, 'e3u_n' , ze3u_b , ldxios = lrxios ) |
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| 356 | CALL iom_get( numror, jpdom_autoglo, 'e3v_n' , ze3v_b , ldxios = lrxios ) |
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| 357 | ! |
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| 358 | ! get volume flux before coupling (>0 out) |
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| 359 | DO jk = 1, jpk ! Horizontal slab |
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| 360 | DO jj = 2, jpjm1 |
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| 361 | DO ji = 2, jpim1 |
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| 362 | zqvolb(ji,jj,jk) = ( e2u(ji,jj) * ze3u_b(ji,jj,jk) * un(ji,jj,jk) - e2u(ji-1,jj ) * ze3u_b(ji-1,jj ,jk) * un(ji-1,jj ,jk) & |
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| 363 | & + e1v(ji,jj) * ze3v_b(ji,jj,jk) * vn(ji,jj,jk) - e1v(ji ,jj-1) * ze3v_b(ji ,jj-1,jk) * vn(ji ,jj-1,jk) ) & |
|---|
| 364 | & * ztmask_b(ji,jj,jk) |
|---|
| 365 | END DO |
|---|
| 366 | ENDDO |
|---|
| 367 | ! |
|---|
| 368 | ! properly mask velocity |
|---|
| 369 | ! (velocity are still mask with old mask at this stage) |
|---|
| 370 | un(:,:,jk) = un(:,:,jk) * umask(:,:,jk) |
|---|
| 371 | vn(:,:,jk) = vn(:,:,jk) * vmask(:,:,jk) |
|---|
| 372 | ! |
|---|
| 373 | ! get volume flux after coupling (>0 out) |
|---|
| 374 | DO jj = 2, jpjm1 |
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| 375 | DO ji = 2, jpim1 |
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| 376 | zqvoln(ji,jj,jk) = ( e2u(ji,jj) * e3u_n(ji,jj,jk) * un(ji,jj,jk) - e2u(ji-1,jj ) * e3u_n(ji-1,jj ,jk) * un(ji-1,jj ,jk) & |
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| 377 | & + e1v(ji,jj) * e3v_n(ji,jj,jk) * vn(ji,jj,jk) - e1v(ji ,jj-1) * e3v_n(ji ,jj-1,jk) * vn(ji ,jj-1,jk) ) & |
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| 378 | & * tmask(ji,jj,jk) |
|---|
| 379 | END DO |
|---|
| 380 | ENDDO |
|---|
| 381 | ! |
|---|
| 382 | ! get 3d volume flux difference (before - after cpl) (>0 out) |
|---|
| 383 | ! correction to add is _b - _n |
|---|
| 384 | risfcpl_vol(:,:,jk) = zqvolb(:,:,jk) - zqvoln(:,:,jk) |
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| 385 | END DO |
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| 386 | ! |
|---|
| 387 | ! include the contribution of the vertical velocity in the volume flux correction |
|---|
| 388 | DO jj = 2, jpjm1 |
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| 389 | DO ji = 2, jpim1 |
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| 390 | ! |
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| 391 | ikt = mikt(ji,jj) |
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| 392 | IF ( ikt > 1 .AND. ssmask(ji,jj) == 1 ) THEN |
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| 393 | risfcpl_vol(ji,jj,ikt) = risfcpl_vol(ji,jj,ikt) + SUM(zqvolb(ji,jj,1:ikt-1)) ! test sign |
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| 394 | ENDIF |
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| 395 | ! |
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| 396 | END DO |
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| 397 | ENDDO |
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| 398 | ! |
|---|
| 399 | ! mask volume flux divergence correction |
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| 400 | risfcpl_vol(:,:,:) = risfcpl_vol(:,:,:) * tmask(:,:,:) |
|---|
| 401 | ! |
|---|
| 402 | CALL lbc_lnk( 'iscpl', risfcpl_vol, 'T', 1. ) |
|---|
| 403 | CALL lbc_lnk( 'iscpl', zqvolb, 'T', 1. ) |
|---|
| 404 | CALL lbc_lnk( 'iscpl', zqvoln, 'T', 1. ) |
|---|
| 405 | ! |
|---|
| 406 | ! get 3d tra increment to apply at the first time step |
|---|
| 407 | ! temperature and salt content flux computed using local tsn |
|---|
| 408 | ! (very simple advection scheme) |
|---|
| 409 | ! (>0 out) |
|---|
| 410 | risfcpl_tsc(:,:,:,jp_tem) = -risfcpl_vol(:,:,:) * tsn(:,:,:,jp_tem) |
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| 411 | risfcpl_tsc(:,:,:,jp_sal) = -risfcpl_vol(:,:,:) * tsn(:,:,:,jp_sal) |
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| 412 | ! |
|---|
| 413 | ! ssh correction (for dynspg_ts) |
|---|
| 414 | risfcpl_ssh(:,:) = 0.0 |
|---|
| 415 | DO jk = 1,jpk |
|---|
| 416 | risfcpl_ssh(:,:) = risfcpl_ssh(:,:) + risfcpl_vol(:,:,jk) * r1_e1e2t(:,:) |
|---|
| 417 | END DO |
|---|
| 418 | |
|---|
| 419 | END SUBROUTINE isfcpl_vol |
|---|
| 420 | |
|---|
| 421 | SUBROUTINE isfcpl_cons() |
|---|
| 422 | !!---------------------------------------------------------------------- |
|---|
| 423 | !! *** ROUTINE iscpl_cons *** |
|---|
| 424 | !! |
|---|
| 425 | !! ** Purpose : compute the corrective increment in volume/salt/heat to put back the vol/heat/salt |
|---|
| 426 | !! removed or added during the coupling processes (wet or dry new cell) |
|---|
| 427 | !! |
|---|
| 428 | !! ** Method : - compare volume/heat/salt before and after |
|---|
| 429 | !! - look for the closest wet cells (share amoung neigbourgs if there are) |
|---|
| 430 | !! - build the correction increment to applied at each time step |
|---|
| 431 | !! |
|---|
| 432 | !!---------------------------------------------------------------------- |
|---|
| 433 | ! |
|---|
| 434 | TYPE(isfcons), DIMENSION(:),ALLOCATABLE :: zisfpts |
|---|
| 435 | ! |
|---|
| 436 | INTEGER :: ji , jj , jk ! loop index |
|---|
| 437 | INTEGER :: jip1 , jim1, jjp1, jjm1 |
|---|
| 438 | INTEGER :: iig , ijg, ik |
|---|
| 439 | INTEGER :: istart, iend, jisf |
|---|
| 440 | INTEGER :: nisfg , ingb, ifind |
|---|
| 441 | INTEGER, DIMENSION(jpnij) :: nisfl |
|---|
| 442 | ! |
|---|
| 443 | REAL(wp) :: z1_sum, z1_rdtiscpl |
|---|
| 444 | REAL(wp) :: zdtem, zdsal, zdvol, zratio |
|---|
| 445 | REAL(wp) :: zlon , zlat |
|---|
| 446 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ztmask_b !! mask before |
|---|
| 447 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: ze3t_b !! scale factor before |
|---|
| 448 | !!---------------------------------------------------------------------- |
|---|
| 449 | |
|---|
| 450 | ! get restart variable |
|---|
| 451 | CALL iom_get( numror, jpdom_autoglo, 'tmask' , ztmask_b, ldxios = lrxios ) ! need to extrapolate T/S |
|---|
| 452 | CALL iom_get( numror, jpdom_autoglo, 'e3t_n' , ze3t_b(:,:,:), ldxios = lrxios ) |
|---|
| 453 | |
|---|
| 454 | ! compute run length |
|---|
| 455 | nstp_iscpl = nitend - nit000 + 1 |
|---|
| 456 | rdt_iscpl = nstp_iscpl * rn_rdt |
|---|
| 457 | z1_rdtiscpl = 1._wp / rdt_iscpl |
|---|
| 458 | IF (lwp) WRITE(numout,*) ' nb of stp for cons = ', nstp_iscpl |
|---|
| 459 | IF (lwp) WRITE(numout,*) ' coupling time step = ', rdt_iscpl |
|---|
| 460 | |
|---|
| 461 | ! mask tsn and tsb |
|---|
| 462 | tsb(:,:,:,jp_tem) = tsb(:,:,:,jp_tem) * ztmask_b(:,:,:) |
|---|
| 463 | tsn(:,:,:,jp_tem) = tsn(:,:,:,jp_tem) * tmask (:,:,:) |
|---|
| 464 | tsb(:,:,:,jp_sal) = tsb(:,:,:,jp_sal) * ztmask_b(:,:,:) |
|---|
| 465 | tsn(:,:,:,jp_sal) = tsn(:,:,:,jp_sal) * tmask (:,:,:) |
|---|
| 466 | |
|---|
| 467 | !============================================================================== |
|---|
| 468 | ! diagnose the heat, salt and volume input and compute the correction variable |
|---|
| 469 | !============================================================================== |
|---|
| 470 | |
|---|
| 471 | risfcpl_cons_vol = 0.0 |
|---|
| 472 | risfcpl_cons_ssh = 0.0 |
|---|
| 473 | risfcpl_cons_tsc = 0.0 |
|---|
| 474 | |
|---|
| 475 | DO jk = 1,jpk-1 |
|---|
| 476 | DO jj = nldj,nlej |
|---|
| 477 | DO ji = nldi,nlei |
|---|
| 478 | |
|---|
| 479 | ! volume diff |
|---|
| 480 | zdvol = e3t_n(ji,jj,jk) * tmask(ji,jj,jk) - ze3t_b(ji,jj,jk) * ztmask_b(ji,jj,jk) |
|---|
| 481 | |
|---|
| 482 | ! heat diff |
|---|
| 483 | zdtem = tsn(ji,jj,jk,jp_tem) * e3t_n(ji,jj,jk) & |
|---|
| 484 | - tsb(ji,jj,jk,jp_tem) * ze3t_b(ji,jj,jk) |
|---|
| 485 | |
|---|
| 486 | ! salt diff |
|---|
| 487 | zdsal = tsn(ji,jj,jk,jp_sal) * e3t_n(ji,jj,jk) & |
|---|
| 488 | - tsb(ji,jj,jk,jp_sal) * ze3t_b(ji,jj,jk) |
|---|
| 489 | |
|---|
| 490 | ! volume, heat and salt differences in each cell (>0 means correction is an outward flux) |
|---|
| 491 | risfcpl_cons_vol(ji,jj,jk) = zdvol * e1e2t(ji,jj) * z1_rdtiscpl |
|---|
| 492 | risfcpl_cons_tsc(ji,jj,jk,jp_sal) = - zdsal * e1e2t(ji,jj) * z1_rdtiscpl |
|---|
| 493 | risfcpl_cons_tsc(ji,jj,jk,jp_tem) = - zdtem * e1e2t(ji,jj) * z1_rdtiscpl |
|---|
| 494 | |
|---|
| 495 | END DO |
|---|
| 496 | END DO |
|---|
| 497 | END DO |
|---|
| 498 | ! |
|---|
| 499 | ! redistribute on valid point the vol/heat/salt removed during the coupling (ie when we dry a cell) |
|---|
| 500 | ! where we dry a cell get the number of point |
|---|
| 501 | ! compute the total number of point receiving a correction increment for each processor |
|---|
| 502 | ! local |
|---|
| 503 | nisfl=0 |
|---|
| 504 | DO jk = 1,jpk-1 |
|---|
| 505 | DO jj = nldj,nlej |
|---|
| 506 | DO ji = nldi,nlei |
|---|
| 507 | jip1=MIN(ji+1,jpi) ; jim1=MAX(ji-1,1) ; jjp1=MIN(jj+1,jpj) ; jjm1=MAX(jj-1,1) ; |
|---|
| 508 | IF ( tmask(ji,jj,jk) == 0._wp .AND. ztmask_b(ji,jj,jk) == 1._wp ) nisfl(narea) = nisfl(narea) + MAX(SUM(tmask(jim1:jip1,jjm1:jjp1,jk)),1._wp) |
|---|
| 509 | ENDDO |
|---|
| 510 | ENDDO |
|---|
| 511 | ENDDO |
|---|
| 512 | ! |
|---|
| 513 | ! global |
|---|
| 514 | CALL mpp_sum('isfcpl',nisfl) |
|---|
| 515 | nisfg = SUM(nisfl ) |
|---|
| 516 | istart = SUM(nisfl(1:narea-1)) |
|---|
| 517 | iend = SUM(nisfl(1:narea )) |
|---|
| 518 | ! |
|---|
| 519 | ! allocate list of point receiving correction |
|---|
| 520 | ALLOCATE(zisfpts(nisfg)) |
|---|
| 521 | zisfpts(:) = isfcons(0,0,0,-HUGE(1.0), -HUGE(1.0), -HUGE(1.0), -HUGE(1.0), -HUGE(1.0), 0) |
|---|
| 522 | ! |
|---|
| 523 | ! start computing the correction and fill zisfpts |
|---|
| 524 | ! local |
|---|
| 525 | jisf = istart |
|---|
| 526 | DO jk = 1,jpk-1 |
|---|
| 527 | DO jj = nldj,nlej |
|---|
| 528 | DO ji = nldi,nlei |
|---|
| 529 | IF ( tmask(ji,jj,jk) == 0._wp .AND. ztmask_b(ji,jj,jk) == 1._wp ) THEN |
|---|
| 530 | |
|---|
| 531 | jip1=MIN(ji+1,jpi) ; jim1=MAX(ji-1,1) ; jjp1=MIN(jj+1,jpj) ; jjm1=MAX(jj-1,1) ; |
|---|
| 532 | |
|---|
| 533 | zdvol = risfcpl_cons_vol(ji,jj,jk ) |
|---|
| 534 | zdsal = risfcpl_cons_tsc(ji,jj,jk,jp_sal) |
|---|
| 535 | zdtem = risfcpl_cons_tsc(ji,jj,jk,jp_tem) |
|---|
| 536 | |
|---|
| 537 | IF ( SUM( tmask(jim1:jip1,jjm1:jjp1,jk) ) > 0._wp ) THEN |
|---|
| 538 | ! spread correction amoung neigbourg wet cells (horizontal direction first) |
|---|
| 539 | ! as it is a rude correction corner and lateral cell have the same weight |
|---|
| 540 | ! |
|---|
| 541 | z1_sum = 1._wp / SUM( tmask(jim1:jip1,jjm1:jjp1,jk) ) |
|---|
| 542 | ! |
|---|
| 543 | ! lateral cells |
|---|
| 544 | IF (tmask(jip1,jj ,jk) == 1) CALL update_isfpts(zisfpts, jisf, jip1, jj , jk, zdvol, zdsal, zdtem, z1_sum) |
|---|
| 545 | IF (tmask(jim1,jj ,jk) == 1) CALL update_isfpts(zisfpts, jisf, jim1, jj , jk, zdvol, zdsal, zdtem, z1_sum) |
|---|
| 546 | IF (tmask(ji ,jjp1,jk) == 1) CALL update_isfpts(zisfpts, jisf, ji , jjp1, jk, zdvol, zdsal, zdtem, z1_sum) |
|---|
| 547 | IF (tmask(ji ,jjm1,jk) == 1) CALL update_isfpts(zisfpts, jisf, ji , jjm1, jk, zdvol, zdsal, zdtem, z1_sum) |
|---|
| 548 | ! |
|---|
| 549 | ! corner cells |
|---|
| 550 | IF (tmask(jip1,jjm1,jk) == 1) CALL update_isfpts(zisfpts, jisf, jip1, jjm1, jk, zdvol, zdsal, zdtem, z1_sum) |
|---|
| 551 | IF (tmask(jim1,jjm1,jk) == 1) CALL update_isfpts(zisfpts, jisf, jim1, jjm1, jk, zdvol, zdsal, zdtem, z1_sum) |
|---|
| 552 | IF (tmask(jim1,jjp1,jk) == 1) CALL update_isfpts(zisfpts, jisf, jim1, jjp1, jk, zdvol, zdsal, zdtem, z1_sum) |
|---|
| 553 | IF (tmask(jip1,jjp1,jk) == 1) CALL update_isfpts(zisfpts, jisf, jip1, jjp1, jk, zdvol, zdsal, zdtem, z1_sum) |
|---|
| 554 | ! |
|---|
| 555 | ELSE IF ( tmask(ji,jj,jk+1) == 1._wp ) THEN |
|---|
| 556 | ! spread correction amoung neigbourg wet cells (vertical direction) |
|---|
| 557 | CALL update_isfpts(zisfpts, jisf, ji , jj , jk+1, zdvol, zdsal, zdtem, 1., 0) |
|---|
| 558 | ELSE |
|---|
| 559 | ! need to find where to put correction in later on |
|---|
| 560 | CALL update_isfpts(zisfpts, jisf, ji , jj , jk , zdvol, zdsal, zdtem, 1., 1) |
|---|
| 561 | END IF |
|---|
| 562 | END IF |
|---|
| 563 | END DO |
|---|
| 564 | END DO |
|---|
| 565 | END DO |
|---|
| 566 | ! |
|---|
| 567 | ! share data among all processes because for some point we need to find the closest wet point (could be on other process) |
|---|
| 568 | DO jisf = 1,nisfg |
|---|
| 569 | ! |
|---|
| 570 | ! indices (conversion to global indices and sharing) |
|---|
| 571 | iig = zisfpts(jisf)%ii ; ijg = zisfpts(jisf)%jj ; ik = zisfpts(jisf)%kk |
|---|
| 572 | CALL mpp_max('isfcpl',iig) ; CALL mpp_max('isfcpl',ijg) ; CALL mpp_max('isfcpl',ik) |
|---|
| 573 | ! |
|---|
| 574 | ! data |
|---|
| 575 | zdvol = zisfpts(jisf)%dvol ; zdsal = zisfpts(jisf)%dsal ; zdtem = zisfpts(jisf)%dtem |
|---|
| 576 | CALL mpp_max('isfcpl',zdvol) ; CALL mpp_max('isfcpl',zdsal) ; CALL mpp_max('isfcpl',zdtem) |
|---|
| 577 | ! |
|---|
| 578 | ! location |
|---|
| 579 | zlat = zisfpts(jisf)%lat ; zlon = zisfpts(jisf)%lon |
|---|
| 580 | CALL mpp_max('isfcpl',zlat) ; CALL mpp_max('isfcpl',zlon) |
|---|
| 581 | ! |
|---|
| 582 | ! find flag |
|---|
| 583 | ingb = zisfpts(jisf)%ngb |
|---|
| 584 | CALL mpp_max('isfcpl',ingb) |
|---|
| 585 | ! |
|---|
| 586 | ! fill the 3d correction array |
|---|
| 587 | CALL get_correction(iig, ijg, ik, zlon, zlat, zdvol, zdsal, zdtem, ingb) |
|---|
| 588 | ! |
|---|
| 589 | END DO |
|---|
| 590 | ! |
|---|
| 591 | ! mask (>0 out) |
|---|
| 592 | risfcpl_cons_vol(:,:,: ) = risfcpl_cons_vol(:,:,: ) * tmask(:,:,:) |
|---|
| 593 | risfcpl_cons_tsc(:,:,:,jp_sal) = risfcpl_cons_tsc(:,:,:,jp_sal) * tmask(:,:,:) |
|---|
| 594 | risfcpl_cons_tsc(:,:,:,jp_tem) = risfcpl_cons_tsc(:,:,:,jp_tem) * tmask(:,:,:) |
|---|
| 595 | ! |
|---|
| 596 | ! add lbclnk |
|---|
| 597 | CALL lbc_lnk_multi( 'iscplrst', risfcpl_cons_tsc(:,:,:,jp_tem), 'T', 1., risfcpl_cons_tsc(:,:,:,jp_sal), 'T', 1., risfcpl_cons_vol, 'T', 1.) |
|---|
| 598 | ! |
|---|
| 599 | ! ssh correction (for dynspg_ts) |
|---|
| 600 | DO jk = 1,jpk |
|---|
| 601 | risfcpl_cons_ssh(:,:) = risfcpl_cons_ssh(:,:) + risfcpl_cons_vol(:,:,jk) |
|---|
| 602 | END DO |
|---|
| 603 | risfcpl_cons_ssh(:,:) = risfcpl_cons_ssh(:,:) * r1_e1e2t(:,:) |
|---|
| 604 | ! |
|---|
| 605 | END SUBROUTINE isfcpl_cons |
|---|
| 606 | ! |
|---|
| 607 | SUBROUTINE update_isfpts(sisfpts, kpts, ki, kj, kk, pdvol, pdsal, pdtem, pratio, kfind) |
|---|
| 608 | !!--------------------------------------------------------------------- |
|---|
| 609 | !! *** ROUTINE update_isfpts *** |
|---|
| 610 | !! |
|---|
| 611 | !! ** Purpose : if a cell become dry, we need to put the corrective increment elsewhere |
|---|
| 612 | !! |
|---|
| 613 | !! ** Action : update the list of point |
|---|
| 614 | !! |
|---|
| 615 | !!---------------------------------------------------------------------- |
|---|
| 616 | !!---------------------------------------------------------------------- |
|---|
| 617 | TYPE(isfcons), DIMENSION(:), INTENT(inout) :: sisfpts |
|---|
| 618 | INTEGER, INTENT(inout) :: kpts |
|---|
| 619 | !!---------------------------------------------------------------------- |
|---|
| 620 | INTEGER, INTENT(in ) :: ki, kj, kk |
|---|
| 621 | INTEGER, INTENT(in ), OPTIONAL :: kfind |
|---|
| 622 | REAL(wp), INTENT(in ) :: pdvol, pdsal, pdtem, pratio |
|---|
| 623 | !!---------------------------------------------------------------------- |
|---|
| 624 | INTEGER :: ifind |
|---|
| 625 | !!---------------------------------------------------------------------- |
|---|
| 626 | ! |
|---|
| 627 | ! increment position |
|---|
| 628 | kpts = kpts + 1 |
|---|
| 629 | ! |
|---|
| 630 | ! define if we need to look for closest valid wet cell (no neighbours or neigbourg on halo) |
|---|
| 631 | IF ( PRESENT(kfind) ) THEN |
|---|
| 632 | ifind = kfind |
|---|
| 633 | ELSE |
|---|
| 634 | ifind = ( 1 - tmask_h(ki,kj) ) * tmask(ki,kj,kk) |
|---|
| 635 | END IF |
|---|
| 636 | ! |
|---|
| 637 | ! update isfpts structure |
|---|
| 638 | sisfpts(kpts) = isfcons(mig(ki), mjg(kj), kk, pratio * pdvol, pratio * pdsal, pratio * pdtem, glamt(ki,kj), gphit(ki,kj), ifind ) |
|---|
| 639 | ! |
|---|
| 640 | END SUBROUTINE update_isfpts |
|---|
| 641 | ! |
|---|
| 642 | SUBROUTINE get_correction( ki, kj, kk, zlon, zlat, pvolinc, psalinc, pteminc, kfind) |
|---|
| 643 | !!--------------------------------------------------------------------- |
|---|
| 644 | !! *** ROUTINE get_correction *** |
|---|
| 645 | !! |
|---|
| 646 | !! ** Action : - Find the closest valid cell if needed (wet and not on the halo) |
|---|
| 647 | !! - Scale the correction depending of pratio (case where multiple wet neigbourgs) |
|---|
| 648 | !! - Fill the correction array |
|---|
| 649 | !! |
|---|
| 650 | !!---------------------------------------------------------------------- |
|---|
| 651 | INTEGER , INTENT(in) :: ki, kj, kk, kfind ! target point |
|---|
| 652 | REAL(wp), INTENT(in) :: zlon, zlat |
|---|
| 653 | REAL(wp), INTENT(in) :: pvolinc, pteminc,psalinc ! correction increment for vol/temp/salt |
|---|
| 654 | !!---------------------------------------------------------------------- |
|---|
| 655 | INTEGER :: jj, ji, iig, ijg |
|---|
| 656 | !!---------------------------------------------------------------------- |
|---|
| 657 | ! |
|---|
| 658 | ! define global indice of correction location |
|---|
| 659 | iig = ki ; ijg = kj |
|---|
| 660 | IF ( kfind == 1 ) CALL dom_ngb( zlon, zlat, iig, ijg,'T', kk) |
|---|
| 661 | ! |
|---|
| 662 | ! fill the correction array |
|---|
| 663 | DO jj = mj0(ijg),mj1(ijg) |
|---|
| 664 | DO ji = mi0(iig),mi1(iig) |
|---|
| 665 | ! correct the vol_flx in the closest cell |
|---|
| 666 | risfcpl_cons_vol(ji,jj,kk) = risfcpl_cons_vol(ji,jj,kk ) + pvolinc |
|---|
| 667 | risfcpl_cons_tsc(ji,jj,kk,jp_sal) = risfcpl_cons_tsc(ji,jj,kk,jp_sal) + psalinc |
|---|
| 668 | risfcpl_cons_tsc(ji,jj,kk,jp_tem) = risfcpl_cons_tsc(ji,jj,kk,jp_tem) + pteminc |
|---|
| 669 | END DO |
|---|
| 670 | END DO |
|---|
| 671 | |
|---|
| 672 | END SUBROUTINE get_correction |
|---|
| 673 | |
|---|
| 674 | END MODULE isfcpl |
|---|
