| [3959] | 1 | MODULE traadv_mle |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE traadv_mle *** |
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| 4 | !! Ocean tracers: Mixed Layer Eddy induced transport |
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| 5 | !!====================================================================== |
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| 6 | !! History : 3.3 ! 2010-08 (G. Madec) Original code |
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| 7 | !!---------------------------------------------------------------------- |
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| 8 | |
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| 9 | !!---------------------------------------------------------------------- |
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| 10 | !! tra_adv_mle : update the effective transport with the Mixed Layer Eddy induced transport |
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| 11 | !! tra_adv_mle_init : initialisation of the Mixed Layer Eddy induced transport computation |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | USE oce ! ocean dynamics and tracers variables |
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| 14 | USE dom_oce ! ocean space and time domain variables |
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| 15 | USE phycst ! physical constant |
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| 16 | USE zdfmxl ! mixed layer depth |
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| 17 | USE lbclnk ! lateral boundary condition / mpp link |
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| 18 | USE in_out_manager ! I/O manager |
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| 19 | USE iom ! IOM library |
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| 20 | USE lib_mpp ! MPP library |
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| 21 | USE wrk_nemo ! work arrays |
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| 22 | USE timing ! Timing |
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| 23 | |
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| 24 | IMPLICIT NONE |
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| 25 | PRIVATE |
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| 26 | |
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| 27 | PUBLIC tra_adv_mle ! routine called in traadv.F90 |
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| 28 | PUBLIC tra_adv_mle_init ! routine called in traadv.F90 |
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| 29 | |
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| 30 | ! !!* namelist namtra_adv_mle * |
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| [4245] | 31 | LOGICAL, PUBLIC :: ln_mle ! flag to activate the Mixed Layer Eddy (MLE) parameterisation |
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| 32 | INTEGER :: nn_mle ! MLE type: =0 standard Fox-Kemper ; =1 new formulation |
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| 33 | INTEGER :: nn_mld_uv ! space interpolation of MLD at u- & v-pts (0=min,1=averaged,2=max) |
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| 34 | INTEGER :: nn_conv ! =1 no MLE in case of convection ; =0 always MLE |
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| 35 | REAL(wp) :: rn_ce ! MLE coefficient |
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| 36 | ! ! parameters used in nn_mle = 0 case |
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| 37 | REAL(wp) :: rn_lf ! typical scale of mixed layer front |
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| 38 | REAL(wp) :: rn_time ! time scale for mixing momentum across the mixed layer |
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| 39 | ! ! parameters used in nn_mle = 1 case |
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| 40 | REAL(wp) :: rn_lat ! reference latitude for a 5 km scale of ML front |
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| 41 | REAL(wp) :: rn_rho_c_mle ! Density criterion for definition of MLD used by FK |
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| [3959] | 42 | |
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| 43 | REAL(wp) :: r5_21 = 5.e0 / 21.e0 ! factor used in mle streamfunction computation |
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| 44 | REAL(wp) :: rb_c ! ML buoyancy criteria = g rho_c /rau0 where rho_c is defined in zdfmld |
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| 45 | REAL(wp) :: rc_f ! MLE coefficient (= rn_ce / (5 km * fo) ) in nn_mle=1 case |
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| 46 | |
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| 47 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: rfu, rfv ! modified Coriolis parameter (f+tau) at u- & v-pts |
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| 48 | REAL(wp), ALLOCATABLE, SAVE, DIMENSION(:,:) :: r1_ft ! inverse of the modified Coriolis parameter at t-pts |
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| 49 | |
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| 50 | !! * Substitutions |
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| 51 | # include "domzgr_substitute.h90" |
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| 52 | # include "vectopt_loop_substitute.h90" |
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| 53 | !!---------------------------------------------------------------------- |
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| 54 | !! NEMO/OPA 4.0 , NEMO Consortium (2011) |
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| [5215] | 55 | !! $Id$ |
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| [3959] | 56 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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| 57 | !!---------------------------------------------------------------------- |
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| 58 | CONTAINS |
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| 59 | |
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| 60 | SUBROUTINE tra_adv_mle( kt, kit000, pu, pv, pw, cdtype ) |
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| 61 | !!---------------------------------------------------------------------- |
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| 62 | !! *** ROUTINE adv_mle *** |
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| 63 | !! |
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| 64 | !! ** Purpose : Add to the transport the Mixed Layer Eddy induced transport |
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| 65 | !! |
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| 66 | !! ** Method : The 3 components of the Mixed Layer Eddy (MLE) induced |
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| 67 | !! transport are computed as follows : |
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| 68 | !! zu_mle = dk[ zpsi_uw ] |
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| 69 | !! zv_mle = dk[ zpsi_vw ] |
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| 70 | !! zw_mle = - di[ zpsi_uw ] - dj[ zpsi_vw ] |
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| 71 | !! where zpsi is the MLE streamfunction at uw and vw points (see the doc) |
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| 72 | !! and added to the input velocity : |
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| 73 | !! p.n = p.n + z._mle |
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| 74 | !! |
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| 75 | !! ** Action : - (pun,pvn,pwn) increased by the mle transport |
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| 76 | !! CAUTION, the transport is not updated at the last line/raw |
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| 77 | !! this may be a problem for some advection schemes |
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| 78 | !! |
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| 79 | !! References: Fox-Kemper et al., JPO, 38, 1145-1165, 2008 |
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| 80 | !! Fox-Kemper and Ferrari, JPO, 38, 1166-1179, 2008 |
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| 81 | !!---------------------------------------------------------------------- |
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| 82 | ! |
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| 83 | INTEGER , INTENT(in ) :: kt ! ocean time-step index |
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| 84 | INTEGER , INTENT(in ) :: kit000 ! first time step index |
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| 85 | CHARACTER(len=3) , INTENT(in ) :: cdtype ! =TRA or TRC (tracer indicator) |
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| 86 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pu ! in : 3 ocean transport components |
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| 87 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pv ! out: same 3 transport components |
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| 88 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: pw ! increased by the MLE induced transport |
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| 89 | ! |
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| 90 | INTEGER :: ji, jj, jk ! dummy loop indices |
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| 91 | INTEGER :: ikmax ! temporary integer |
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| 92 | REAL(wp) :: zcuw, zmuw ! local scalar |
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| 93 | REAL(wp) :: zcvw, zmvw ! - - |
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| 94 | REAL(wp) :: zc ! - - |
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| 95 | |
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| 96 | INTEGER :: ii, ij, ik ! local integers |
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| 97 | INTEGER, DIMENSION(3) :: ilocu ! |
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| 98 | INTEGER, DIMENSION(2) :: ilocs ! |
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| 99 | REAL(wp), POINTER, DIMENSION(:,: ) :: zpsim_u, zpsim_v, zmld, zbm, zhu, zhv, zn2, zLf_NH, zLf_MH |
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| 100 | REAL(wp), POINTER, DIMENSION(:,:,:) :: zpsi_uw, zpsi_vw |
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| 101 | INTEGER, POINTER, DIMENSION(:,:) :: inml_mle |
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| 102 | !!---------------------------------------------------------------------- |
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| 103 | |
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| 104 | IF( nn_timing == 1 ) CALL timing_start('tra_adv_mle') |
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| 105 | CALL wrk_alloc( jpi, jpj, zpsim_u, zpsim_v, zmld, zbm, zhu, zhv, zn2, zLf_NH, zLf_MH) |
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| 106 | CALL wrk_alloc( jpi, jpj, jpk, zpsi_uw, zpsi_vw) |
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| 107 | CALL wrk_alloc( jpi, jpj, inml_mle) |
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| [3995] | 108 | ! |
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| 109 | ! !== MLD used for MLE ==! |
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| 110 | ! ! compute from the 10m density to deal with the diurnal cycle |
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| 111 | inml_mle(:,:) = mbkt(:,:) + 1 ! init. to number of ocean w-level (T-level + 1) |
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| 112 | DO jk = jpkm1, nlb10, -1 ! from the bottom to nlb10 (10m) |
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| [3959] | 113 | DO jj = 1, jpj |
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| [3995] | 114 | DO ji = 1, jpi ! index of the w-level at the ML based |
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| [3959] | 115 | IF( rhop(ji,jj,jk) > rhop(ji,jj,nla10) + rn_rho_c_mle ) inml_mle(ji,jj) = jk ! Mixed layer |
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| 116 | END DO |
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| 117 | END DO |
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| 118 | END DO |
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| [4325] | 119 | ikmax = MIN( MAXVAL( inml_mle(:,:) ), jpkm1 ) ! max level of the computation |
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| [3959] | 120 | ! |
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| 121 | ! |
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| [3995] | 122 | zmld(:,:) = 0._wp !== Horizontal shape of the MLE ==! |
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| 123 | zbm (:,:) = 0._wp |
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| 124 | zn2 (:,:) = 0._wp |
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| 125 | DO jk = 1, ikmax ! MLD and mean buoyancy and N2 over the mixed layer |
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| [3959] | 126 | DO jj = 1, jpj |
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| 127 | DO ji = 1, jpi |
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| [3995] | 128 | zc = fse3t(ji,jj,jk) * REAL( MIN( MAX( 0, inml_mle(ji,jj)-jk ) , 1 ) ) ! zc being 0 outside the ML t-points |
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| [3959] | 129 | zmld(ji,jj) = zmld(ji,jj) + zc |
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| [3995] | 130 | zbm (ji,jj) = zbm (ji,jj) + zc * (rau0 - rhop(ji,jj,jk) ) * r1_rau0 |
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| [3959] | 131 | zn2 (ji,jj) = zn2 (ji,jj) + zc * (rn2(ji,jj,jk)+rn2(ji,jj,jk+1))*0.5_wp |
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| 132 | END DO |
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| 133 | END DO |
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| 134 | END DO |
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| 135 | |
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| [3995] | 136 | SELECT CASE( nn_mld_uv ) ! MLD at u- & v-pts |
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| [3959] | 137 | CASE ( 0 ) != min of the 2 neighbour MLDs |
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| 138 | DO jj = 1, jpjm1 |
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| 139 | DO ji = 1, fs_jpim1 ! vector opt. |
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| 140 | zhu(ji,jj) = MIN( zmld(ji+1,jj), zmld(ji,jj) ) |
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| 141 | zhv(ji,jj) = MIN( zmld(ji,jj+1), zmld(ji,jj) ) |
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| 142 | END DO |
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| 143 | END DO |
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| 144 | CASE ( 1 ) != average of the 2 neighbour MLDs |
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| 145 | DO jj = 1, jpjm1 |
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| 146 | DO ji = 1, fs_jpim1 ! vector opt. |
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| 147 | zhu(ji,jj) = ( zmld(ji+1,jj) + zmld(ji,jj) ) * 0.5_wp |
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| 148 | zhv(ji,jj) = ( zmld(ji,jj+1) + zmld(ji,jj) ) * 0.5_wp |
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| 149 | END DO |
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| 150 | END DO |
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| 151 | CASE ( 2 ) != max of the 2 neighbour MLDs |
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| 152 | DO jj = 1, jpjm1 |
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| 153 | DO ji = 1, fs_jpim1 ! vector opt. |
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| 154 | zhu(ji,jj) = MAX( zmld(ji+1,jj), zmld(ji,jj) ) |
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| 155 | zhv(ji,jj) = MAX( zmld(ji,jj+1), zmld(ji,jj) ) |
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| 156 | END DO |
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| 157 | END DO |
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| 158 | END SELECT |
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| [3995] | 159 | ! ! convert density into buoyancy |
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| [3959] | 160 | zbm(:,:) = + grav * zbm(:,:) / MAX( fse3t(:,:,1), zmld(:,:) ) |
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| 161 | ! |
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| 162 | ! |
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| [3995] | 163 | ! !== Magnitude of the MLE stream function ==! |
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| 164 | ! |
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| [3959] | 165 | ! di[bm] Ds |
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| 166 | ! Psi = Ce H^2 ---------------- e2u mu(z) where fu Lf = MAX( fu*rn_fl , (Db H)^1/2 ) |
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| 167 | ! e1u Lf fu and the e2u for the "transport" |
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| 168 | ! (not *e3u as divided by e3u at the end) |
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| 169 | ! |
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| 170 | IF( nn_mle == 0 ) THEN ! Fox-Kemper et al. 2010 formulation |
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| 171 | DO jj = 1, jpjm1 |
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| 172 | DO ji = 1, fs_jpim1 ! vector opt. |
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| 173 | zpsim_u(ji,jj) = rn_ce * zhu(ji,jj) * zhu(ji,jj) * e2u(ji,jj) & |
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| 174 | & * ( zbm(ji+1,jj) - zbm(ji,jj) ) * MIN( 111.e3_wp , e1u(ji,jj) ) & |
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| 175 | & / ( e1u(ji,jj) * MAX( rn_lf * rfu(ji,jj) , SQRT( rb_c * zhu(ji,jj) ) ) ) |
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| 176 | ! |
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| 177 | zpsim_v(ji,jj) = rn_ce * zhv(ji,jj) * zhv(ji,jj) * e1v(ji,jj) & |
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| 178 | & * ( zbm(ji,jj+1) - zbm(ji,jj) ) * MIN( 111.e3_wp , e2v(ji,jj) ) & |
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| [3995] | 179 | & / ( e2v(ji,jj) * MAX( rn_lf * rfv(ji,jj) , SQRT( rb_c * zhv(ji,jj) ) ) ) |
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| [3959] | 180 | END DO |
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| 181 | END DO |
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| 182 | ! |
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| 183 | ELSEIF( nn_mle == 1 ) THEN ! New formulation (Lf = 5km fo/ff with fo=Coriolis parameter at latitude rn_lat) |
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| 184 | DO jj = 1, jpjm1 |
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| 185 | DO ji = 1, fs_jpim1 ! vector opt. |
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| 186 | zpsim_u(ji,jj) = rc_f * zhu(ji,jj) * zhu(ji,jj) * e2u(ji,jj) / e1u(ji,jj) & |
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| 187 | & * ( zbm(ji+1,jj) - zbm(ji,jj) ) * MIN( 111.e3_wp , e1u(ji,jj) ) |
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| 188 | ! |
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| [3995] | 189 | zpsim_v(ji,jj) = rc_f * zhv(ji,jj) * zhv(ji,jj) * e1v(ji,jj) / e2v(ji,jj) & |
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| [3959] | 190 | & * ( zbm(ji,jj+1) - zbm(ji,jj) ) * MIN( 111.e3_wp , e2v(ji,jj) ) |
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| 191 | END DO |
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| 192 | END DO |
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| 193 | ENDIF |
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| 194 | ! |
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| 195 | IF( nn_conv == 1 ) THEN ! No MLE in case of convection |
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| 196 | DO jj = 1, jpjm1 |
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| 197 | DO ji = 1, fs_jpim1 ! vector opt. |
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| 198 | IF( MIN( zn2(ji,jj) , zn2(ji+1,jj) ) < 0._wp ) zpsim_u(ji,jj) = 0._wp |
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| 199 | IF( MIN( zn2(ji,jj) , zn2(ji,jj+1) ) < 0._wp ) zpsim_v(ji,jj) = 0._wp |
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| 200 | END DO |
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| 201 | END DO |
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| 202 | ENDIF |
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| 203 | ! |
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| [3995] | 204 | ! !== structure function value at uw- and vw-points ==! |
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| [4835] | 205 | DO jj = 1, jpjm1 |
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| 206 | DO ji = 1, fs_jpim1 ! vector opt. |
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| 207 | zhu(ji,jj) = 1._wp / zhu(ji,jj) ! hu --> 1/hu |
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| 208 | zhv(ji,jj) = 1._wp / zhv(ji,jj) |
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| 209 | END DO |
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| 210 | END DO |
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| 211 | ! |
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| [3959] | 212 | zpsi_uw(:,:,:) = 0._wp |
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| 213 | zpsi_vw(:,:,:) = 0._wp |
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| 214 | ! |
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| 215 | DO jk = 2, ikmax ! start from 2 : surface value = 0 |
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| 216 | DO jj = 1, jpjm1 |
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| 217 | DO ji = 1, fs_jpim1 ! vector opt. |
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| 218 | zcuw = 1._wp - ( fsdepw(ji+1,jj,jk) + fsdepw(ji,jj,jk) ) * zhu(ji,jj) |
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| 219 | zcvw = 1._wp - ( fsdepw(ji,jj+1,jk) + fsdepw(ji,jj,jk) ) * zhv(ji,jj) |
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| 220 | zcuw = zcuw * zcuw |
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| 221 | zcvw = zcvw * zcvw |
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| 222 | zmuw = MAX( 0._wp , ( 1._wp - zcuw ) * ( 1._wp + r5_21 * zcuw ) ) |
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| 223 | zmvw = MAX( 0._wp , ( 1._wp - zcvw ) * ( 1._wp + r5_21 * zcvw ) ) |
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| 224 | ! |
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| 225 | zpsi_uw(ji,jj,jk) = zpsim_u(ji,jj) * zmuw * umask(ji,jj,jk) |
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| 226 | zpsi_vw(ji,jj,jk) = zpsim_v(ji,jj) * zmvw * vmask(ji,jj,jk) |
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| 227 | END DO |
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| 228 | END DO |
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| 229 | END DO |
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| [3995] | 230 | ! |
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| 231 | ! !== transport increased by the MLE induced transport ==! |
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| [3959] | 232 | DO jk = 1, ikmax |
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| 233 | DO jj = 1, jpjm1 ! CAUTION pu,pv must be defined at row/column i=1 / j=1 |
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| 234 | DO ji = 1, fs_jpim1 ! vector opt. |
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| 235 | pu(ji,jj,jk) = pu(ji,jj,jk) + ( zpsi_uw(ji,jj,jk) - zpsi_uw(ji,jj,jk+1) ) |
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| 236 | pv(ji,jj,jk) = pv(ji,jj,jk) + ( zpsi_vw(ji,jj,jk) - zpsi_vw(ji,jj,jk+1) ) |
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| 237 | END DO |
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| 238 | END DO |
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| 239 | DO jj = 2, jpjm1 |
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| 240 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 241 | pw(ji,jj,jk) = pw(ji,jj,jk) - ( zpsi_uw(ji,jj,jk) - zpsi_uw(ji-1,jj,jk) & |
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| 242 | & + zpsi_vw(ji,jj,jk) - zpsi_vw(ji,jj-1,jk) ) |
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| 243 | END DO |
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| 244 | END DO |
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| 245 | END DO |
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| 246 | |
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| [3995] | 247 | IF( cdtype == 'TRA') THEN !== outputs ==! |
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| [3959] | 248 | ! |
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| 249 | zLf_NH(:,:) = SQRT( rb_c * zmld(:,:) ) * r1_ft(:,:) ! Lf = N H / f |
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| [3995] | 250 | CALL iom_put( "Lf_NHpf" , zLf_NH ) ! Lf = N H / f |
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| [3959] | 251 | ! |
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| [4188] | 252 | ! divide by cross distance to give streamfunction with dimensions m^2/s |
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| 253 | DO jk = 1, ikmax+1 |
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| 254 | zpsi_uw(:,:,jk) = zpsi_uw(:,:,jk)/e2u(:,:) |
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| 255 | zpsi_vw(:,:,jk) = zpsi_vw(:,:,jk)/e1v(:,:) |
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| 256 | END DO |
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| [3959] | 257 | CALL iom_put( "psiu_mle", zpsi_uw ) ! i-mle streamfunction |
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| 258 | CALL iom_put( "psiv_mle", zpsi_vw ) ! j-mle streamfunction |
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| 259 | ENDIF |
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| 260 | CALL wrk_dealloc( jpi, jpj, zpsim_u, zpsim_v, zmld, zbm, zhu, zhv, zn2, zLf_NH, zLf_MH) |
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| 261 | CALL wrk_dealloc( jpi, jpj, jpk, zpsi_uw, zpsi_vw) |
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| 262 | CALL wrk_dealloc( jpi, jpj, inml_mle) |
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| 263 | |
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| 264 | IF( nn_timing == 1 ) CALL timing_stop('tra_adv_mle') |
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| 265 | ! |
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| 266 | END SUBROUTINE tra_adv_mle |
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| 267 | |
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| 268 | |
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| 269 | SUBROUTINE tra_adv_mle_init |
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| 270 | !!--------------------------------------------------------------------- |
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| 271 | !! *** ROUTINE tra_adv_mle_init *** |
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| 272 | !! |
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| 273 | !! ** Purpose : Control the consistency between namelist options for |
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| 274 | !! tracer advection schemes and set nadv |
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| 275 | !!---------------------------------------------------------------------- |
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| 276 | INTEGER :: ji, jj, jk ! dummy loop indices |
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| 277 | INTEGER :: ierr |
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| [4245] | 278 | INTEGER :: ios ! Local integer output status for namelist read |
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| [3959] | 279 | REAL(wp) :: z1_t2, zfu, zfv ! - - |
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| 280 | ! |
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| 281 | NAMELIST/namtra_adv_mle/ ln_mle , nn_mle, rn_ce, rn_lf, rn_time, rn_lat, nn_mld_uv, nn_conv, rn_rho_c_mle |
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| 282 | !!---------------------------------------------------------------------- |
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| 283 | |
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| 284 | |
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| [4245] | 285 | REWIND( numnam_ref ) ! Namelist namtra_adv_mle in reference namelist : Tracer advection scheme |
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| 286 | READ ( numnam_ref, namtra_adv_mle, IOSTAT = ios, ERR = 901) |
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| 287 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namtra_adv_mle in reference namelist', lwp ) |
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| 288 | |
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| 289 | REWIND( numnam_cfg ) ! Namelist namtra_adv_mle in configuration namelist : Tracer advection scheme |
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| 290 | READ ( numnam_cfg, namtra_adv_mle, IOSTAT = ios, ERR = 902 ) |
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| 291 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namtra_adv_mle in configuration namelist', lwp ) |
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| [11101] | 292 | IF(lwm .AND. nprint > 2) WRITE ( numond, namtra_adv_mle ) |
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| [4245] | 293 | |
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| [3959] | 294 | IF(lwp) THEN ! Namelist print |
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| 295 | WRITE(numout,*) |
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| 296 | WRITE(numout,*) 'tra_adv_mle_init : mixed layer eddy (MLE) advection acting on tracers' |
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| 297 | WRITE(numout,*) '~~~~~~~~~~~~~~~~' |
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| 298 | WRITE(numout,*) ' Namelist namtra_adv_mle : mixed layer eddy advection on tracers' |
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| 299 | WRITE(numout,*) ' use mixed layer eddy (MLE, i.e. Fox-Kemper param) (T/F) ln_mle = ', ln_mle |
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| 300 | WRITE(numout,*) ' MLE type: =0 standard Fox-Kemper ; =1 new formulation nn_mle = ', nn_mle |
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| 301 | WRITE(numout,*) ' magnitude of the MLE (typical value: 0.06 to 0.08) rn_ce = ', rn_ce |
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| 302 | WRITE(numout,*) ' scale of ML front (ML radius of deformation) (rn_mle=0) rn_lf = ', rn_lf, 'm' |
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| 303 | WRITE(numout,*) ' maximum time scale of MLE (rn_mle=0) rn_time = ', rn_time, 's' |
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| 304 | WRITE(numout,*) ' reference latitude (degrees) of MLE coef. (rn_mle=1) rn_lat = ', rn_lat, 'deg' |
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| 305 | WRITE(numout,*) ' space interp. of MLD at u-(v-)pts (0=min,1=averaged,2=max) nn_mld_uv = ', nn_mld_uv |
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| 306 | WRITE(numout,*) ' =1 no MLE in case of convection ; =0 always MLE nn_conv = ', nn_conv |
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| 307 | WRITE(numout,*) ' Density difference used to define ML for FK rn_rho_c_mle = ', rn_rho_c_mle |
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| [11101] | 308 | IF(lflush) CALL flush(numout) |
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| [3959] | 309 | ENDIF |
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| 310 | ! |
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| 311 | IF(lwp) THEN |
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| 312 | WRITE(numout,*) |
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| 313 | IF( ln_mle ) THEN |
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| 314 | WRITE(numout,*) ' Mixed Layer Eddy induced transport added to tracer advection' |
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| 315 | IF( nn_mle == 0 ) WRITE(numout,*) ' Fox-Kemper et al 2010 formulation' |
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| 316 | IF( nn_mle == 1 ) WRITE(numout,*) ' New formulation' |
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| 317 | ELSE |
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| 318 | WRITE(numout,*) ' Mixed Layer Eddy parametrisation NOT used' |
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| 319 | ENDIF |
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| [11101] | 320 | |
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| 321 | IF(lflush) CALL flush(numout) |
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| 322 | |
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| [3959] | 323 | ENDIF |
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| 324 | ! |
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| 325 | IF( ln_mle ) THEN ! MLE initialisation |
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| 326 | ! |
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| 327 | rb_c = grav * rn_rho_c_mle /rau0 ! Mixed Layer buoyancy criteria |
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| 328 | IF(lwp) WRITE(numout,*) |
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| 329 | IF(lwp) WRITE(numout,*) ' ML buoyancy criteria = ', rb_c, ' m/s2 ' |
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| 330 | IF(lwp) WRITE(numout,*) ' associated ML density criteria defined in zdfmxl = ', rho_c, 'kg/m3' |
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| [11101] | 331 | IF(lwp .AND. lflush) CALL flush(numout) |
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| [3959] | 332 | ! |
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| 333 | IF( nn_mle == 0 ) THEN ! MLE array allocation & initialisation |
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| 334 | ALLOCATE( rfu(jpi,jpj) , rfv(jpi,jpj) , STAT= ierr ) |
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| 335 | IF( ierr /= 0 ) CALL ctl_stop( 'tra_adv_mle_init: failed to allocate arrays' ) |
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| 336 | z1_t2 = 1._wp / ( rn_time * rn_time ) |
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| 337 | DO jj = 2, jpj ! "coriolis+ time^-1" at u- & v-points |
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| 338 | DO ji = fs_2, jpi ! vector opt. |
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| 339 | zfu = ( ff(ji,jj) + ff(ji,jj-1) ) * 0.5_wp |
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| 340 | zfv = ( ff(ji,jj) + ff(ji-1,jj) ) * 0.5_wp |
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| 341 | rfu(ji,jj) = SQRT( zfu * zfu + z1_t2 ) |
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| 342 | rfv(ji,jj) = SQRT( zfv * zfv + z1_t2 ) |
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| 343 | END DO |
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| 344 | END DO |
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| 345 | CALL lbc_lnk( rfu, 'U', 1. ) ; CALL lbc_lnk( rfv, 'V', 1. ) |
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| 346 | ! |
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| 347 | ELSEIF( nn_mle == 1 ) THEN ! MLE array allocation & initialisation |
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| 348 | rc_f = rn_ce / ( 5.e3_wp * 2._wp * omega * SIN( rad * rn_lat ) ) |
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| 349 | ! |
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| 350 | ENDIF |
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| 351 | ! |
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| 352 | ! ! 1/(f^2+tau^2)^1/2 at t-point (needed in both nn_mle case) |
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| 353 | ALLOCATE( r1_ft(jpi,jpj) , STAT= ierr ) |
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| 354 | IF( ierr /= 0 ) CALL ctl_stop( 'tra_adv_mle_init: failed to allocate r1_ft array' ) |
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| 355 | ! |
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| 356 | z1_t2 = 1._wp / ( rn_time * rn_time ) |
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| 357 | r1_ft(:,:) = 2._wp * omega * SIN( rad * gphit(:,:) ) |
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| 358 | r1_ft(:,:) = 1._wp / SQRT( r1_ft(:,:) * r1_ft(:,:) + z1_t2 ) |
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| 359 | ! |
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| 360 | ENDIF |
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| 361 | ! |
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| 362 | END SUBROUTINE tra_adv_mle_init |
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| 363 | |
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| 364 | !!============================================================================== |
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| 365 | END MODULE traadv_mle |
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