| 1 | MODULE tradmp |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE tradmp *** |
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| 4 | !! Ocean physics: internal restoring trend on active tracers (T and S) |
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| 5 | !!====================================================================== |
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| 6 | !! History : OPA ! 1991-03 (O. Marti, G. Madec) Original code |
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| 7 | !! ! 1992-06 (M. Imbard) doctor norme |
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| 8 | !! ! 1996-01 (G. Madec) statement function for e3 |
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| 9 | !! ! 1997-05 (G. Madec) macro-tasked on jk-slab |
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| 10 | !! ! 1998-07 (M. Imbard, G. Madec) ORCA version |
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| 11 | !! 7.0 ! 2001-02 (M. Imbard) cofdis, Original code |
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| 12 | !! 8.1 ! 2001-02 (G. Madec, E. Durand) cleaning |
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| 13 | !! NEMO 1.0 ! 2002-08 (G. Madec, E. Durand) free form + modules |
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| 14 | !! 3.2 ! 2009-08 (G. Madec, C. Talandier) DOCTOR norm for namelist parameter |
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| 15 | !!---------------------------------------------------------------------- |
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| 16 | #if defined key_tradmp || defined key_esopa |
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| 17 | !!---------------------------------------------------------------------- |
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| 18 | !! key_tradmp internal damping |
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| 19 | !!---------------------------------------------------------------------- |
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| 20 | !! tra_dmp : update the tracer trend with the internal damping |
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| 21 | !! tra_dmp_init : initialization, namlist read, parameters control |
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| 22 | !! dtacof_zoom : restoring coefficient for zoom domain |
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| 23 | !! dtacof : restoring coefficient for global domain |
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| 24 | !! cofdis : compute the distance to the coastline |
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| 25 | !!---------------------------------------------------------------------- |
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| 26 | USE oce ! ocean dynamics and tracers variables |
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| 27 | USE dom_oce ! ocean space and time domain variables |
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| 28 | USE trdmod ! ocean active tracers trends |
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| 29 | USE trdmod_oce ! ocean variables trends |
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| 30 | USE zdf_oce ! ocean vertical physics |
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| 31 | USE phycst ! Define parameters for the routines |
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| 32 | USE dtatem ! temperature data |
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| 33 | USE dtasal ! salinity data |
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| 34 | USE zdfmxl ! mixed layer depth |
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| 35 | USE in_out_manager ! I/O manager |
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| 36 | USE lib_mpp ! distribued memory computing |
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| 37 | USE prtctl ! Print control |
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| 38 | |
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| 39 | IMPLICIT NONE |
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| 40 | PRIVATE |
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| 41 | |
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| 42 | PUBLIC tra_dmp ! routine called by step.F90 |
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| 43 | PUBLIC cofdis, dtacof, dtacof_zoom |
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| 44 | |
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| 45 | #if ! defined key_agrif |
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| 46 | LOGICAL, PUBLIC, PARAMETER :: lk_tradmp = .TRUE. !: internal damping flag |
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| 47 | #else |
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| 48 | LOGICAL, PUBLIC :: lk_tradmp = .TRUE. !: internal damping flag |
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| 49 | #endif |
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| 50 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: resto !: restoring coeff. on T and S (s-1) |
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| 51 | |
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| 52 | ! !!* Namelist namtra_dmp : T & S newtonian damping * |
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| 53 | INTEGER :: nn_hdmp = -1 ! = 0/-1/'latitude' for damping over T and S |
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| 54 | INTEGER :: nn_zdmp = 0 ! = 0/1/2 flag for damping in the mixed layer |
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| 55 | REAL(wp) :: rn_surf = 50. ! surface time scale for internal damping [days] |
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| 56 | REAL(wp) :: rn_bot = 360. ! bottom time scale for internal damping [days] |
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| 57 | REAL(wp) :: rn_dep = 800. ! depth of transition between rn_surf and rn_bot [meters] |
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| 58 | INTEGER :: nn_file = 2 ! = 1 create a damping.coeff NetCDF file |
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| 59 | |
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| 60 | !! * Substitutions |
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| 61 | # include "domzgr_substitute.h90" |
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| 62 | # include "vectopt_loop_substitute.h90" |
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| 63 | !!---------------------------------------------------------------------- |
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| 64 | !! NEMO/OPA 3.2 , LOCEAN-IPSL (2009) |
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| 65 | !! $Id$ |
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| 66 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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| 67 | !!---------------------------------------------------------------------- |
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| 68 | |
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| 69 | CONTAINS |
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| 70 | |
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| 71 | SUBROUTINE tra_dmp( kt ) |
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| 72 | !!---------------------------------------------------------------------- |
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| 73 | !! *** ROUTINE tra_dmp *** |
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| 74 | !! |
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| 75 | !! ** Purpose : Compute the tracer trend due to a newtonian damping |
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| 76 | !! of the tracer field towards given data field and add it to the |
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| 77 | !! general tracer trends. |
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| 78 | !! |
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| 79 | !! ** Method : Newtonian damping towards t_dta and s_dta computed |
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| 80 | !! and add to the general tracer trends: |
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| 81 | !! ta = ta + resto * (t_dta - tb) |
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| 82 | !! sa = sa + resto * (s_dta - sb) |
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| 83 | !! The trend is computed either throughout the water column |
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| 84 | !! (nlmdmp=0) or in area of weak vertical mixing (nlmdmp=1) or |
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| 85 | !! below the well mixed layer (nlmdmp=2) |
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| 86 | !! |
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| 87 | !! ** Action : - (ta,sa) tracer trends updated with the damping trend |
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| 88 | !!---------------------------------------------------------------------- |
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| 89 | USE oce, ONLY : ztrdt => ua ! use ua as 3D workspace |
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| 90 | USE oce, ONLY : ztrds => va ! use va as 3D workspace |
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| 91 | !! |
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| 92 | INTEGER, INTENT(in) :: kt ! ocean time-step index |
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| 93 | !! |
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| 94 | INTEGER :: ji, jj, jk ! dummy loop indices |
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| 95 | !!---------------------------------------------------------------------- |
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| 96 | |
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| 97 | IF( kt == nit000 ) CALL tra_dmp_init ! Initialization |
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| 98 | |
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| 99 | IF( l_trdtra ) THEN ! Save ta and sa trends |
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| 100 | ztrdt(:,:,:) = ta(:,:,:) |
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| 101 | ztrds(:,:,:) = sa(:,:,:) |
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| 102 | ENDIF |
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| 103 | |
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| 104 | SELECT CASE ( nn_zdmp ) |
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| 105 | ! |
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| 106 | CASE( 0 ) !== newtonian damping throughout the water column ==! |
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| 107 | DO jk = 1, jpkm1 |
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| 108 | DO jj = 2, jpjm1 |
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| 109 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 110 | ta(ji,jj,jk) = ta(ji,jj,jk) + resto(ji,jj,jk) * ( t_dta(ji,jj,jk) - tb(ji,jj,jk) ) |
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| 111 | sa(ji,jj,jk) = sa(ji,jj,jk) + resto(ji,jj,jk) * ( s_dta(ji,jj,jk) - sb(ji,jj,jk) ) |
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| 112 | END DO |
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| 113 | END DO |
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| 114 | END DO |
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| 115 | ! |
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| 116 | CASE ( 1 ) !== no damping in the turbocline (avt > 5 cm2/s) ==! |
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| 117 | DO jk = 1, jpkm1 |
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| 118 | DO jj = 2, jpjm1 |
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| 119 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 120 | IF( avt(ji,jj,jk) <= 5.e-4 ) THEN |
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| 121 | ta(ji,jj,jk) = ta(ji,jj,jk) + resto(ji,jj,jk) * ( t_dta(ji,jj,jk) - tb(ji,jj,jk) ) |
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| 122 | sa(ji,jj,jk) = sa(ji,jj,jk) + resto(ji,jj,jk) * ( s_dta(ji,jj,jk) - sb(ji,jj,jk) ) |
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| 123 | ENDIF |
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| 124 | END DO |
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| 125 | END DO |
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| 126 | END DO |
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| 127 | ! |
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| 128 | CASE ( 2 ) !== no damping in the mixed layer ==! |
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| 129 | DO jk = 1, jpkm1 |
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| 130 | DO jj = 2, jpjm1 |
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| 131 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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| 132 | IF( fsdept(ji,jj,jk) >= hmlp (ji,jj) ) THEN |
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| 133 | ta(ji,jj,jk) = ta(ji,jj,jk) + resto(ji,jj,jk) * ( t_dta(ji,jj,jk) - tb(ji,jj,jk) ) |
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| 134 | sa(ji,jj,jk) = sa(ji,jj,jk) + resto(ji,jj,jk) * ( s_dta(ji,jj,jk) - sb(ji,jj,jk) ) |
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| 135 | ENDIF |
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| 136 | END DO |
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| 137 | END DO |
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| 138 | END DO |
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| 139 | ! |
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| 140 | END SELECT |
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| 141 | |
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| 142 | IF( l_trdtra ) THEN ! trend diagnostic |
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| 143 | ztrdt(:,:,:) = ta(:,:,:) - ztrdt(:,:,:) |
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| 144 | ztrds(:,:,:) = sa(:,:,:) - ztrds(:,:,:) |
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| 145 | CALL trd_mod( ztrdt, ztrds, jptra_trd_dmp, 'TRA', kt ) |
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| 146 | ENDIF |
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| 147 | ! ! Control print |
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| 148 | IF(ln_ctl) CALL prt_ctl( tab3d_1=ta, clinfo1=' dmp - Ta: ', mask1=tmask, & |
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| 149 | & tab3d_2=sa, clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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| 150 | ! |
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| 151 | END SUBROUTINE tra_dmp |
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| 152 | |
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| 153 | |
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| 154 | SUBROUTINE tra_dmp_init |
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| 155 | !!---------------------------------------------------------------------- |
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| 156 | !! *** ROUTINE tra_dmp_init *** |
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| 157 | !! |
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| 158 | !! ** Purpose : Initialization for the newtonian damping |
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| 159 | !! |
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| 160 | !! ** Method : read the nammbf namelist and check the parameters |
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| 161 | !!---------------------------------------------------------------------- |
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| 162 | NAMELIST/namtra_dmp/ nn_hdmp, nn_zdmp, rn_surf, rn_bot, rn_dep, nn_file |
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| 163 | !!---------------------------------------------------------------------- |
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| 164 | |
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| 165 | REWIND ( numnam ) ! Read Namelist namtra_dmp : temperature and salinity damping term |
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| 166 | READ ( numnam, namtra_dmp ) |
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| 167 | IF( lzoom ) nn_zdmp = 0 ! restoring to climatology at closed north or south boundaries |
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| 168 | |
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| 169 | IF(lwp) THEN ! Namelist print |
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| 170 | WRITE(numout,*) |
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| 171 | WRITE(numout,*) 'tra_dmp : T and S newtonian damping' |
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| 172 | WRITE(numout,*) '~~~~~~~' |
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| 173 | WRITE(numout,*) ' Namelist namtra_dmp : set damping parameter' |
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| 174 | WRITE(numout,*) ' T and S damping option nn_hdmp = ', nn_hdmp |
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| 175 | WRITE(numout,*) ' mixed layer damping option nn_zdmp = ', nn_zdmp, '(zoom: forced to 0)' |
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| 176 | WRITE(numout,*) ' surface time scale (days) rn_surf = ', rn_surf |
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| 177 | WRITE(numout,*) ' bottom time scale (days) rn_bot = ', rn_bot |
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| 178 | WRITE(numout,*) ' depth of transition (meters) rn_dep = ', rn_dep |
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| 179 | WRITE(numout,*) ' create a damping.coeff file nn_file = ', nn_file |
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| 180 | ENDIF |
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| 181 | |
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| 182 | SELECT CASE ( nn_hdmp ) |
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| 183 | CASE ( -1 ) ; IF(lwp) WRITE(numout,*) ' tracer damping in the Med & Red seas only' |
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| 184 | CASE ( 1:90 ) ; IF(lwp) WRITE(numout,*) ' tracer damping poleward of', nn_hdmp, ' degrees' |
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| 185 | CASE DEFAULT |
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| 186 | WRITE(ctmp1,*) ' bad flag value for nn_hdmp = ', nn_hdmp |
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| 187 | CALL ctl_stop(ctmp1) |
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| 188 | END SELECT |
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| 189 | |
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| 190 | SELECT CASE ( nn_zdmp ) |
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| 191 | CASE ( 0 ) ; IF(lwp) WRITE(numout,*) ' tracer damping throughout the water column' |
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| 192 | CASE ( 1 ) ; IF(lwp) WRITE(numout,*) ' no tracer damping in the turbocline (avt > 5 cm2/s)' |
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| 193 | CASE ( 2 ) ; IF(lwp) WRITE(numout,*) ' no tracer damping in the mixed layer' |
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| 194 | CASE DEFAULT |
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| 195 | WRITE(ctmp1,*) 'bad flag value for nn_zdmp = ', nn_zdmp |
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| 196 | CALL ctl_stop(ctmp1) |
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| 197 | END SELECT |
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| 198 | |
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| 199 | IF( .NOT.lk_dtasal .OR. .NOT.lk_dtatem ) & |
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| 200 | & CALL ctl_stop( 'no temperature and/or salinity data define key_dtatem and key_dtasal' ) |
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| 201 | |
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| 202 | ! ! Damping coefficients initialization |
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| 203 | IF( lzoom ) THEN ; CALL dtacof_zoom |
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| 204 | ELSE ; CALL dtacof |
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| 205 | ENDIF |
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| 206 | ! |
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| 207 | END SUBROUTINE tra_dmp_init |
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| 208 | |
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| 209 | |
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| 210 | SUBROUTINE dtacof_zoom |
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| 211 | !!---------------------------------------------------------------------- |
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| 212 | !! *** ROUTINE dtacof_zoom *** |
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| 213 | !! |
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| 214 | !! ** Purpose : Compute the damping coefficient for zoom domain |
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| 215 | !! |
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| 216 | !! ** Method : - set along closed boundary due to zoom a damping over |
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| 217 | !! 6 points with a max time scale of 5 days. |
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| 218 | !! - ORCA arctic/antarctic zoom: set the damping along |
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| 219 | !! south/north boundary over a latitude strip. |
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| 220 | !! |
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| 221 | !! ** Action : - resto, the damping coeff. for T and S |
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| 222 | !!---------------------------------------------------------------------- |
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| 223 | INTEGER :: ji, jj, jk, jn ! dummy loop indices |
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| 224 | REAL(wp) :: zlat, zlat0, zlat1, zlat2 ! temporary scalar |
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| 225 | REAL(wp), DIMENSION(6) :: zfact ! temporary workspace |
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| 226 | !!---------------------------------------------------------------------- |
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| 227 | |
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| 228 | zfact(1) = 1. |
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| 229 | zfact(2) = 1. |
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| 230 | zfact(3) = 11./12. |
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| 231 | zfact(4) = 8./12. |
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| 232 | zfact(5) = 4./12. |
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| 233 | zfact(6) = 1./12. |
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| 234 | zfact(:) = zfact(:) / ( 5. * rday ) ! 5 days max restoring time scale |
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| 235 | |
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| 236 | resto(:,:,:) = 0.e0 |
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| 237 | |
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| 238 | ! damping along the forced closed boundary over 6 grid-points |
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| 239 | DO jn = 1, 6 |
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| 240 | IF( lzoom_w ) resto( mi0(jn+jpizoom):mi1(jn+jpizoom), : , : ) = zfact(jn) ! west closed |
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| 241 | IF( lzoom_s ) resto( : , mj0(jn+jpjzoom):mj1(jn+jpjzoom), : ) = zfact(jn) ! south closed |
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| 242 | IF( lzoom_e ) resto( mi0(jpiglo+jpizoom-1-jn):mi1(jpiglo+jpizoom-1-jn) , : , : ) = zfact(jn) ! east closed |
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| 243 | IF( lzoom_n ) resto( : , mj0(jpjglo+jpjzoom-1-jn):mj1(jpjglo+jpjzoom-1-jn) , : ) = zfact(jn) ! north closed |
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| 244 | END DO |
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| 245 | |
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| 246 | ! ! ==================================================== |
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| 247 | IF( lzoom_arct .AND. lzoom_anta ) THEN ! ORCA configuration : arctic zoom or antarctic zoom |
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| 248 | ! ! ==================================================== |
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| 249 | IF(lwp) WRITE(numout,*) |
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| 250 | IF(lwp .AND. lzoom_arct ) WRITE(numout,*) ' dtacof_zoom : ORCA Arctic zoom' |
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| 251 | IF(lwp .AND. lzoom_arct ) WRITE(numout,*) ' dtacof_zoom : ORCA Antarctic zoom' |
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| 252 | IF(lwp) WRITE(numout,*) |
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| 253 | ! |
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| 254 | ! ! Initialization : |
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| 255 | resto(:,:,:) = 0.e0 |
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| 256 | zlat0 = 10. ! zlat0 : latitude strip where resto decreases |
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| 257 | zlat1 = 30. ! zlat1 : resto = 1 before zlat1 |
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| 258 | zlat2 = zlat1 + zlat0 ! zlat2 : resto decreases from 1 to 0 between zlat1 and zlat2 |
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| 259 | |
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| 260 | DO jk = 2, jpkm1 ! Compute arrays resto ; value for internal damping : 5 days |
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| 261 | DO jj = 1, jpj |
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| 262 | DO ji = 1, jpi |
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| 263 | zlat = ABS( gphit(ji,jj) ) |
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| 264 | IF( zlat1 <= zlat .AND. zlat <= zlat2 ) THEN |
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| 265 | resto(ji,jj,jk) = 0.5 * ( 1./(5.*rday) ) * ( 1. - cos(rpi*(zlat2-zlat)/zlat0) ) |
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| 266 | ELSEIF( zlat < zlat1 ) THEN |
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| 267 | resto(ji,jj,jk) = 1./(5.*rday) |
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| 268 | ENDIF |
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| 269 | END DO |
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| 270 | END DO |
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| 271 | END DO |
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| 272 | ! |
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| 273 | ENDIF |
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| 274 | ! ! Mask resto array |
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| 275 | resto(:,:,:) = resto(:,:,:) * tmask(:,:,:) |
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| 276 | ! |
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| 277 | END SUBROUTINE dtacof_zoom |
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| 278 | |
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| 279 | |
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| 280 | SUBROUTINE dtacof |
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| 281 | !!---------------------------------------------------------------------- |
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| 282 | !! *** ROUTINE dtacof *** |
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| 283 | !! |
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| 284 | !! ** Purpose : Compute the damping coefficient |
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| 285 | !! |
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| 286 | !! ** Method : Arrays defining the damping are computed for each grid |
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| 287 | !! point for temperature and salinity (resto) |
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| 288 | !! Damping depends on distance to coast, depth and latitude |
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| 289 | !! |
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| 290 | !! ** Action : - resto, the damping coeff. for T and S |
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| 291 | !!---------------------------------------------------------------------- |
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| 292 | USE iom |
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| 293 | USE ioipsl |
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| 294 | !! |
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| 295 | INTEGER :: ji, jj, jk ! dummy loop indices |
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| 296 | INTEGER :: ii0, ii1, ij0, ij1 ! - - |
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| 297 | INTEGER :: inum0 ! logical unit for file restoring damping term |
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| 298 | INTEGER :: icot ! logical unit for file distance to the coast |
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| 299 | REAL(wp) :: zinfl, zlon ! temporary scalars |
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| 300 | REAL(wp) :: zlat, zlat0, zlat1, zlat2 ! - - |
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| 301 | REAL(wp) :: zsdmp, zbdmp ! - - |
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| 302 | REAL(wp), DIMENSION(jpk) :: zhfac |
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| 303 | REAL(wp), DIMENSION(jpi,jpj) :: zmrs |
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| 304 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zdct |
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| 305 | !!---------------------------------------------------------------------- |
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| 306 | |
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| 307 | ! ==================================== |
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| 308 | ! ORCA configuration : global domain |
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| 309 | ! ==================================== |
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| 310 | |
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| 311 | IF(lwp) WRITE(numout,*) |
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| 312 | IF(lwp) WRITE(numout,*) ' dtacof : Global domain of ORCA' |
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| 313 | IF(lwp) WRITE(numout,*) ' ------------------------------' |
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| 314 | |
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| 315 | ! ... Initialization : |
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| 316 | resto(:,:,:) = 0.e0 |
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| 317 | |
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| 318 | ! !-----------------------------------------! |
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| 319 | IF( nn_hdmp > 0 ) THEN ! Damping poleward of 'nn_hdmp' degrees ! |
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| 320 | ! !-----------------------------------------! |
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| 321 | IF(lwp) WRITE(numout,*) |
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| 322 | IF(lwp) WRITE(numout,*) ' Damping poleward of ', nn_hdmp,' deg.' |
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| 323 | ! |
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| 324 | CALL iom_open ( 'dist.coast.nc', icot, ldstop = .FALSE. ) |
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| 325 | ! |
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| 326 | IF( icot > 0 ) THEN ! distance-to-coast read in file |
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| 327 | CALL iom_get ( icot, jpdom_data, 'Tcoast', zdct ) |
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| 328 | CALL iom_close( icot ) |
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| 329 | ELSE ! distance-to-coast computed and saved in file (output in zdct) |
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| 330 | CALL cofdis( zdct ) |
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| 331 | ENDIF |
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| 332 | |
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| 333 | ! ! Compute arrays resto |
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| 334 | zinfl = 1000.e3 ! distance of influence for damping term |
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| 335 | zlat0 = 10. ! latitude strip where resto decreases |
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| 336 | zlat1 = REAL( nn_hdmp ) ! resto = 0 between -zlat1 and zlat1 |
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| 337 | zlat2 = zlat1 + zlat0 ! resto increases from 0 to 1 between |zlat1| and |zlat2| |
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| 338 | |
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| 339 | DO jj = 1, jpj |
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| 340 | DO ji = 1, jpi |
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| 341 | zlat = ABS( gphit(ji,jj) ) |
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| 342 | IF ( zlat1 <= zlat .AND. zlat <= zlat2 ) THEN |
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| 343 | resto(ji,jj,1) = 0.5 * ( 1. - cos(rpi*(zlat-zlat1)/zlat0 ) ) |
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| 344 | ELSEIF ( zlat > zlat2 ) THEN |
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| 345 | resto(ji,jj,1) = 1. |
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| 346 | ENDIF |
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| 347 | END DO |
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| 348 | END DO |
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| 349 | |
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| 350 | IF ( nn_hdmp == 20 ) THEN ! North Indian ocean (20N/30N x 45E/100E) : resto=0 |
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| 351 | DO jj = 1, jpj |
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| 352 | DO ji = 1, jpi |
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| 353 | zlat = gphit(ji,jj) |
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| 354 | zlon = MOD( glamt(ji,jj), 360. ) |
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| 355 | IF ( zlat1 < zlat .AND. zlat < zlat2 .AND. 45. < zlon .AND. zlon < 100. ) THEN |
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| 356 | resto(ji,jj,1) = 0.e0 |
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| 357 | ENDIF |
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| 358 | END DO |
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| 359 | END DO |
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| 360 | ENDIF |
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| 361 | |
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| 362 | zsdmp = 1./(rn_surf * rday) |
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| 363 | zbdmp = 1./(rn_bot * rday) |
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| 364 | DO jk = 2, jpkm1 |
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| 365 | DO jj = 1, jpj |
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| 366 | DO ji = 1, jpi |
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| 367 | zdct(ji,jj,jk) = MIN( zinfl, zdct(ji,jj,jk) ) |
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| 368 | ! ... Decrease the value in the vicinity of the coast |
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| 369 | resto(ji,jj,jk) = resto(ji,jj,1) * 0.5 * ( 1. - COS( rpi*zdct(ji,jj,jk)/zinfl) ) |
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| 370 | ! ... Vertical variation from zsdmp (sea surface) to zbdmp (bottom) |
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| 371 | resto(ji,jj,jk) = resto(ji,jj,jk) * ( zbdmp + (zsdmp-zbdmp)*EXP(-fsdept(ji,jj,jk)/rn_dep) ) |
|---|
| 372 | END DO |
|---|
| 373 | END DO |
|---|
| 374 | END DO |
|---|
| 375 | ! |
|---|
| 376 | ENDIF |
|---|
| 377 | |
|---|
| 378 | |
|---|
| 379 | IF( cp_cfg == "orca" .AND. ( nn_hdmp > 0 .OR. nn_hdmp == -1 ) ) THEN |
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| 380 | |
|---|
| 381 | ! ! ========================= |
|---|
| 382 | ! ! Med and Red Sea damping |
|---|
| 383 | ! ! ========================= |
|---|
| 384 | IF(lwp)WRITE(numout,*) |
|---|
| 385 | IF(lwp)WRITE(numout,*) ' ORCA configuration: Damping in Med and Red Seas' |
|---|
| 386 | |
|---|
| 387 | |
|---|
| 388 | zmrs(:,:) = 0.e0 ! damping term on the Med or Red Sea |
|---|
| 389 | |
|---|
| 390 | SELECT CASE ( jp_cfg ) |
|---|
| 391 | ! ! ======================= |
|---|
| 392 | CASE ( 4 ) ! ORCA_R4 configuration |
|---|
| 393 | ! ! ======================= |
|---|
| 394 | ! Mediterranean Sea |
|---|
| 395 | ij0 = 50 ; ij1 = 56 |
|---|
| 396 | ii0 = 81 ; ii1 = 91 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
|---|
| 397 | ij0 = 50 ; ij1 = 55 |
|---|
| 398 | ii0 = 75 ; ii1 = 80 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
|---|
| 399 | ij0 = 52 ; ij1 = 53 |
|---|
| 400 | ii0 = 70 ; ii1 = 74 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
|---|
| 401 | ! Smooth transition from 0 at surface to 1./rday at the 18th level in Med and Red Sea |
|---|
| 402 | DO jk = 1, 17 |
|---|
| 403 | zhfac (jk) = 0.5*( 1.- COS( rpi*(jk-1)/16. ) ) / rday |
|---|
| 404 | END DO |
|---|
| 405 | DO jk = 18, jpkm1 |
|---|
| 406 | zhfac (jk) = 1./rday |
|---|
| 407 | END DO |
|---|
| 408 | ! ! ======================= |
|---|
| 409 | CASE ( 2 ) ! ORCA_R2 configuration |
|---|
| 410 | ! ! ======================= |
|---|
| 411 | ! Mediterranean Sea |
|---|
| 412 | ij0 = 96 ; ij1 = 110 |
|---|
| 413 | ii0 = 157 ; ii1 = 181 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
|---|
| 414 | ij0 = 100 ; ij1 = 110 |
|---|
| 415 | ii0 = 144 ; ii1 = 156 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
|---|
| 416 | ij0 = 100 ; ij1 = 103 |
|---|
| 417 | ii0 = 139 ; ii1 = 143 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
|---|
| 418 | ! Decrease before Gibraltar Strait |
|---|
| 419 | ij0 = 101 ; ij1 = 102 |
|---|
| 420 | ii0 = 139 ; ii1 = 141 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.e0 |
|---|
| 421 | ii0 = 142 ; ii1 = 142 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 / 90.e0 |
|---|
| 422 | ii0 = 143 ; ii1 = 143 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.40e0 |
|---|
| 423 | ii0 = 144 ; ii1 = 144 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.75e0 |
|---|
| 424 | ! Red Sea |
|---|
| 425 | ij0 = 87 ; ij1 = 96 |
|---|
| 426 | ii0 = 147 ; ii1 = 163 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
|---|
| 427 | ! Decrease before Bab el Mandeb Strait |
|---|
| 428 | ij0 = 91 ; ij1 = 91 |
|---|
| 429 | ii0 = 153 ; ii1 = 160 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.80e0 |
|---|
| 430 | ij0 = 90 ; ij1 = 90 |
|---|
| 431 | ii0 = 153 ; ii1 = 160 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.40e0 |
|---|
| 432 | ij0 = 89 ; ij1 = 89 |
|---|
| 433 | ii0 = 158 ; ii1 = 160 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 / 90.e0 |
|---|
| 434 | ij0 = 88 ; ij1 = 88 |
|---|
| 435 | ii0 = 160 ; ii1 = 163 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.e0 |
|---|
| 436 | ! Smooth transition from 0 at surface to 1./rday at the 18th level in Med and Red Sea |
|---|
| 437 | DO jk = 1, 17 |
|---|
| 438 | zhfac (jk) = 0.5*( 1.- COS( rpi*(jk-1)/16. ) ) / rday |
|---|
| 439 | END DO |
|---|
| 440 | DO jk = 18, jpkm1 |
|---|
| 441 | zhfac (jk) = 1./rday |
|---|
| 442 | END DO |
|---|
| 443 | ! ! ======================= |
|---|
| 444 | CASE ( 05 ) ! ORCA_R05 configuration |
|---|
| 445 | ! ! ======================= |
|---|
| 446 | ! Mediterranean Sea |
|---|
| 447 | ii0 = 568 ; ii1 = 574 |
|---|
| 448 | ij0 = 324 ; ij1 = 333 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
|---|
| 449 | ii0 = 575 ; ii1 = 658 |
|---|
| 450 | ij0 = 314 ; ij1 = 366 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
|---|
| 451 | ! Black Sea (remaining part |
|---|
| 452 | ii0 = 641 ; ii1 = 651 |
|---|
| 453 | ij0 = 367 ; ij1 = 372 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
|---|
| 454 | ! Decrease before Gibraltar Strait |
|---|
| 455 | ij0 = 324 ; ij1 = 333 |
|---|
| 456 | ii0 = 565 ; ii1 = 565 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 / 90.e0 |
|---|
| 457 | ii0 = 566 ; ii1 = 566 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.40 |
|---|
| 458 | ii0 = 567 ; ii1 = 567 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.75 |
|---|
| 459 | ! Red Sea |
|---|
| 460 | ii0 = 641 ; ii1 = 665 |
|---|
| 461 | ij0 = 270 ; ij1 = 310 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
|---|
| 462 | ! Decrease before Bab el Mandeb Strait |
|---|
| 463 | ii0 = 666 ; ii1 = 675 |
|---|
| 464 | ij0 = 270 ; ij1 = 290 |
|---|
| 465 | DO ji = mi0(ii0), mi1(ii1) |
|---|
| 466 | zmrs( ji , mj0(ij0):mj1(ij1) ) = 0.1 * ABS( FLOAT(ji - mi1(ii1)) ) |
|---|
| 467 | END DO |
|---|
| 468 | zsdmp = 1./(rn_surf * rday) |
|---|
| 469 | zbdmp = 1./(rn_bot * rday) |
|---|
| 470 | DO jk = 1, jpk |
|---|
| 471 | zhfac (jk) = ( zbdmp + (zsdmp-zbdmp) * EXP(-fsdept(1,1,jk)/rn_dep) ) |
|---|
| 472 | END DO |
|---|
| 473 | ! ! ======================== |
|---|
| 474 | CASE ( 025 ) ! ORCA_R025 configuration |
|---|
| 475 | ! ! ======================== |
|---|
| 476 | CALL ctl_stop( ' Not yet implemented in ORCA_R025' ) |
|---|
| 477 | ! |
|---|
| 478 | END SELECT |
|---|
| 479 | |
|---|
| 480 | DO jk = 1, jpkm1 |
|---|
| 481 | resto(:,:,jk) = zmrs(:,:) * zhfac(jk) + ( 1. - zmrs(:,:) ) * resto(:,:,jk) |
|---|
| 482 | END DO |
|---|
| 483 | |
|---|
| 484 | ! Mask resto array and set to 0 first and last levels |
|---|
| 485 | resto(:,:, : ) = resto(:,:,:) * tmask(:,:,:) |
|---|
| 486 | resto(:,:, 1 ) = 0.e0 |
|---|
| 487 | resto(:,:,jpk) = 0.e0 |
|---|
| 488 | ! !--------------------! |
|---|
| 489 | ELSE ! No damping ! |
|---|
| 490 | ! !--------------------! |
|---|
| 491 | CALL ctl_stop( 'Choose a correct value of nn_hdmp or DO NOT defined key_tradmp' ) |
|---|
| 492 | ENDIF |
|---|
| 493 | |
|---|
| 494 | ! !--------------------------------! |
|---|
| 495 | IF( nn_file == 1 ) THEN ! save damping coef. in a file ! |
|---|
| 496 | ! !--------------------------------! |
|---|
| 497 | IF(lwp) WRITE(numout,*) ' create damping.coeff.nc file' |
|---|
| 498 | CALL iom_open ( 'damping.coeff', inum0, ldwrt = .TRUE., kiolib = jprstlib ) |
|---|
| 499 | CALL iom_rstput( 0, 0, inum0, 'Resto', resto ) |
|---|
| 500 | CALL iom_close ( inum0 ) |
|---|
| 501 | ENDIF |
|---|
| 502 | ! |
|---|
| 503 | END SUBROUTINE dtacof |
|---|
| 504 | |
|---|
| 505 | |
|---|
| 506 | SUBROUTINE cofdis( pdct ) |
|---|
| 507 | !!---------------------------------------------------------------------- |
|---|
| 508 | !! *** ROUTINE cofdis *** |
|---|
| 509 | !! |
|---|
| 510 | !! ** Purpose : Compute the distance between ocean T-points and the |
|---|
| 511 | !! ocean model coastlines. Save the distance in a NetCDF file. |
|---|
| 512 | !! |
|---|
| 513 | !! ** Method : For each model level, the distance-to-coast is |
|---|
| 514 | !! computed as follows : |
|---|
| 515 | !! - The coastline is defined as the serie of U-,V-,F-points |
|---|
| 516 | !! that are at the ocean-land bound. |
|---|
| 517 | !! - For each ocean T-point, the distance-to-coast is then |
|---|
| 518 | !! computed as the smallest distance (on the sphere) between the |
|---|
| 519 | !! T-point and all the coastline points. |
|---|
| 520 | !! - For land T-points, the distance-to-coast is set to zero. |
|---|
| 521 | !! C A U T I O N : Computation not yet implemented in mpp case. |
|---|
| 522 | !! |
|---|
| 523 | !! ** Action : - pdct, distance to the coastline (argument) |
|---|
| 524 | !! - NetCDF file 'dist.coast.nc' |
|---|
| 525 | !!---------------------------------------------------------------------- |
|---|
| 526 | USE ioipsl ! IOipsl librairy |
|---|
| 527 | !! |
|---|
| 528 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT( out ) :: pdct ! distance to the coastline |
|---|
| 529 | !! |
|---|
| 530 | INTEGER :: ji, jj, jk, jl ! dummy loop indices |
|---|
| 531 | INTEGER :: iju, ijt ! temporary integers |
|---|
| 532 | INTEGER :: icoast, itime |
|---|
| 533 | INTEGER :: icot ! logical unit for file distance to the coast |
|---|
| 534 | LOGICAL, DIMENSION(jpi,jpj) :: llcotu, llcotv, llcotf ! ??? |
|---|
| 535 | CHARACTER (len=32) :: clname |
|---|
| 536 | REAL(wp) :: zdate0 |
|---|
| 537 | REAL(wp), DIMENSION(jpi,jpj) :: zxt, zyt, zzt, zmask ! cartesian coordinates for T-points |
|---|
| 538 | REAL(wp), DIMENSION(3*jpi*jpj) :: zxc, zyc, zzc, zdis ! temporary workspace |
|---|
| 539 | !!---------------------------------------------------------------------- |
|---|
| 540 | |
|---|
| 541 | ! 0. Initialization |
|---|
| 542 | ! ----------------- |
|---|
| 543 | IF(lwp) WRITE(numout,*) |
|---|
| 544 | IF(lwp) WRITE(numout,*) 'cofdis : compute the distance to coastline' |
|---|
| 545 | IF(lwp) WRITE(numout,*) '~~~~~~' |
|---|
| 546 | IF(lwp) WRITE(numout,*) |
|---|
| 547 | IF( lk_mpp ) & |
|---|
| 548 | & CALL ctl_stop(' Computation not yet implemented with key_mpp_...', & |
|---|
| 549 | & ' Rerun the code on another computer or ', & |
|---|
| 550 | & ' create the "dist.coast.nc" file using IDL' ) |
|---|
| 551 | |
|---|
| 552 | pdct(:,:,:) = 0.e0 |
|---|
| 553 | zxt(:,:) = cos( rad * gphit(:,:) ) * cos( rad * glamt(:,:) ) |
|---|
| 554 | zyt(:,:) = cos( rad * gphit(:,:) ) * sin( rad * glamt(:,:) ) |
|---|
| 555 | zzt(:,:) = sin( rad * gphit(:,:) ) |
|---|
| 556 | |
|---|
| 557 | |
|---|
| 558 | ! 1. Loop on vertical levels |
|---|
| 559 | ! -------------------------- |
|---|
| 560 | ! ! =============== |
|---|
| 561 | DO jk = 1, jpkm1 ! Horizontal slab |
|---|
| 562 | ! ! =============== |
|---|
| 563 | ! Define the coastline points (U, V and F) |
|---|
| 564 | DO jj = 2, jpjm1 |
|---|
| 565 | DO ji = 2, jpim1 |
|---|
| 566 | zmask(ji,jj) = ( tmask(ji,jj+1,jk) + tmask(ji+1,jj+1,jk) & |
|---|
| 567 | & + tmask(ji,jj ,jk) + tmask(ji+1,jj ,jk) ) |
|---|
| 568 | llcotu(ji,jj) = ( tmask(ji,jj, jk) + tmask(ji+1,jj ,jk) == 1. ) |
|---|
| 569 | llcotv(ji,jj) = ( tmask(ji,jj ,jk) + tmask(ji ,jj+1,jk) == 1. ) |
|---|
| 570 | llcotf(ji,jj) = ( zmask(ji,jj) > 0. ) .AND. ( zmask(ji,jj) < 4. ) |
|---|
| 571 | END DO |
|---|
| 572 | END DO |
|---|
| 573 | |
|---|
| 574 | ! Lateral boundaries conditions |
|---|
| 575 | llcotu(:, 1 ) = umask(:, 2 ,jk) == 1 |
|---|
| 576 | llcotu(:,jpj) = umask(:,jpjm1,jk) == 1 |
|---|
| 577 | llcotv(:, 1 ) = vmask(:, 2 ,jk) == 1 |
|---|
| 578 | llcotv(:,jpj) = vmask(:,jpjm1,jk) == 1 |
|---|
| 579 | llcotf(:, 1 ) = fmask(:, 2 ,jk) == 1 |
|---|
| 580 | llcotf(:,jpj) = fmask(:,jpjm1,jk) == 1 |
|---|
| 581 | |
|---|
| 582 | IF( nperio == 1 .OR. nperio == 4 .OR. nperio == 6 ) THEN |
|---|
| 583 | llcotu( 1 ,:) = llcotu(jpim1,:) |
|---|
| 584 | llcotu(jpi,:) = llcotu( 2 ,:) |
|---|
| 585 | llcotv( 1 ,:) = llcotv(jpim1,:) |
|---|
| 586 | llcotv(jpi,:) = llcotv( 2 ,:) |
|---|
| 587 | llcotf( 1 ,:) = llcotf(jpim1,:) |
|---|
| 588 | llcotf(jpi,:) = llcotf( 2 ,:) |
|---|
| 589 | ELSE |
|---|
| 590 | llcotu( 1 ,:) = umask( 2 ,:,jk) == 1 |
|---|
| 591 | llcotu(jpi,:) = umask(jpim1,:,jk) == 1 |
|---|
| 592 | llcotv( 1 ,:) = vmask( 2 ,:,jk) == 1 |
|---|
| 593 | llcotv(jpi,:) = vmask(jpim1,:,jk) == 1 |
|---|
| 594 | llcotf( 1 ,:) = fmask( 2 ,:,jk) == 1 |
|---|
| 595 | llcotf(jpi,:) = fmask(jpim1,:,jk) == 1 |
|---|
| 596 | ENDIF |
|---|
| 597 | IF( nperio == 3 .OR. nperio == 4 ) THEN |
|---|
| 598 | DO ji = 1, jpim1 |
|---|
| 599 | iju = jpi - ji + 1 |
|---|
| 600 | llcotu(ji,jpj ) = llcotu(iju,jpj-2) |
|---|
| 601 | llcotf(ji,jpjm1) = llcotf(iju,jpj-2) |
|---|
| 602 | llcotf(ji,jpj ) = llcotf(iju,jpj-3) |
|---|
| 603 | END DO |
|---|
| 604 | DO ji = jpi/2, jpim1 |
|---|
| 605 | iju = jpi - ji + 1 |
|---|
| 606 | llcotu(ji,jpjm1) = llcotu(iju,jpjm1) |
|---|
| 607 | END DO |
|---|
| 608 | DO ji = 2, jpi |
|---|
| 609 | ijt = jpi - ji + 2 |
|---|
| 610 | llcotv(ji,jpjm1) = llcotv(ijt,jpj-2) |
|---|
| 611 | llcotv(ji,jpj ) = llcotv(ijt,jpj-3) |
|---|
| 612 | END DO |
|---|
| 613 | ENDIF |
|---|
| 614 | IF( nperio == 5 .OR. nperio == 6 ) THEN |
|---|
| 615 | DO ji = 1, jpim1 |
|---|
| 616 | iju = jpi - ji |
|---|
| 617 | llcotu(ji,jpj ) = llcotu(iju,jpjm1) |
|---|
| 618 | llcotf(ji,jpj ) = llcotf(iju,jpj-2) |
|---|
| 619 | END DO |
|---|
| 620 | DO ji = jpi/2, jpim1 |
|---|
| 621 | iju = jpi - ji |
|---|
| 622 | llcotf(ji,jpjm1) = llcotf(iju,jpjm1) |
|---|
| 623 | END DO |
|---|
| 624 | DO ji = 1, jpi |
|---|
| 625 | ijt = jpi - ji + 1 |
|---|
| 626 | llcotv(ji,jpj ) = llcotv(ijt,jpjm1) |
|---|
| 627 | END DO |
|---|
| 628 | DO ji = jpi/2+1, jpi |
|---|
| 629 | ijt = jpi - ji + 1 |
|---|
| 630 | llcotv(ji,jpjm1) = llcotv(ijt,jpjm1) |
|---|
| 631 | END DO |
|---|
| 632 | ENDIF |
|---|
| 633 | |
|---|
| 634 | ! Compute cartesian coordinates of coastline points |
|---|
| 635 | ! and the number of coastline points |
|---|
| 636 | |
|---|
| 637 | icoast = 0 |
|---|
| 638 | DO jj = 1, jpj |
|---|
| 639 | DO ji = 1, jpi |
|---|
| 640 | IF( llcotf(ji,jj) ) THEN |
|---|
| 641 | icoast = icoast + 1 |
|---|
| 642 | zxc(icoast) = COS( rad*gphif(ji,jj) ) * COS( rad*glamf(ji,jj) ) |
|---|
| 643 | zyc(icoast) = COS( rad*gphif(ji,jj) ) * SIN( rad*glamf(ji,jj) ) |
|---|
| 644 | zzc(icoast) = SIN( rad*gphif(ji,jj) ) |
|---|
| 645 | ENDIF |
|---|
| 646 | IF( llcotu(ji,jj) ) THEN |
|---|
| 647 | icoast = icoast+1 |
|---|
| 648 | zxc(icoast) = COS( rad*gphiu(ji,jj) ) * COS( rad*glamu(ji,jj) ) |
|---|
| 649 | zyc(icoast) = COS( rad*gphiu(ji,jj) ) * SIN( rad*glamu(ji,jj) ) |
|---|
| 650 | zzc(icoast) = SIN( rad*gphiu(ji,jj) ) |
|---|
| 651 | ENDIF |
|---|
| 652 | IF( llcotv(ji,jj) ) THEN |
|---|
| 653 | icoast = icoast+1 |
|---|
| 654 | zxc(icoast) = COS( rad*gphiv(ji,jj) ) * COS( rad*glamv(ji,jj) ) |
|---|
| 655 | zyc(icoast) = COS( rad*gphiv(ji,jj) ) * SIN( rad*glamv(ji,jj) ) |
|---|
| 656 | zzc(icoast) = SIN( rad*gphiv(ji,jj) ) |
|---|
| 657 | ENDIF |
|---|
| 658 | END DO |
|---|
| 659 | END DO |
|---|
| 660 | |
|---|
| 661 | ! Distance for the T-points |
|---|
| 662 | |
|---|
| 663 | DO jj = 1, jpj |
|---|
| 664 | DO ji = 1, jpi |
|---|
| 665 | IF( tmask(ji,jj,jk) == 0. ) THEN |
|---|
| 666 | pdct(ji,jj,jk) = 0. |
|---|
| 667 | ELSE |
|---|
| 668 | DO jl = 1, icoast |
|---|
| 669 | zdis(jl) = ( zxt(ji,jj) - zxc(jl) )**2 & |
|---|
| 670 | & + ( zyt(ji,jj) - zyc(jl) )**2 & |
|---|
| 671 | & + ( zzt(ji,jj) - zzc(jl) )**2 |
|---|
| 672 | END DO |
|---|
| 673 | pdct(ji,jj,jk) = ra * SQRT( MINVAL( zdis(1:icoast) ) ) |
|---|
| 674 | ENDIF |
|---|
| 675 | END DO |
|---|
| 676 | END DO |
|---|
| 677 | ! ! =============== |
|---|
| 678 | END DO ! End of slab |
|---|
| 679 | ! ! =============== |
|---|
| 680 | |
|---|
| 681 | |
|---|
| 682 | ! 2. Create the distance to the coast file in NetCDF format |
|---|
| 683 | ! ---------------------------------------------------------- |
|---|
| 684 | clname = 'dist.coast' |
|---|
| 685 | itime = 0 |
|---|
| 686 | CALL ymds2ju( 0 , 1 , 1 , 0.e0 , zdate0 ) |
|---|
| 687 | CALL restini( 'NONE', jpi , jpj , glamt, gphit , & |
|---|
| 688 | & jpk , gdept_0, clname, itime, zdate0, & |
|---|
| 689 | & rdt , icot ) |
|---|
| 690 | CALL restput( icot, 'Tcoast', jpi, jpj, jpk, 0, pdct ) |
|---|
| 691 | CALL restclo( icot ) |
|---|
| 692 | |
|---|
| 693 | END SUBROUTINE cofdis |
|---|
| 694 | |
|---|
| 695 | #else |
|---|
| 696 | !!---------------------------------------------------------------------- |
|---|
| 697 | !! Default key NO internal damping |
|---|
| 698 | !!---------------------------------------------------------------------- |
|---|
| 699 | LOGICAL , PUBLIC, PARAMETER :: lk_tradmp = .FALSE. !: internal damping flag |
|---|
| 700 | CONTAINS |
|---|
| 701 | SUBROUTINE tra_dmp( kt ) ! Empty routine |
|---|
| 702 | WRITE(*,*) 'tra_dmp: You should not have seen this print! error?', kt |
|---|
| 703 | END SUBROUTINE tra_dmp |
|---|
| 704 | #endif |
|---|
| 705 | |
|---|
| 706 | !!====================================================================== |
|---|
| 707 | END MODULE tradmp |
|---|
