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 | !! 3.3 ! 2010-06 (C. Ethe, G. Madec) merge TRA-TRC |
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16 | !!---------------------------------------------------------------------- |
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17 | #if defined key_tradmp || defined key_esopa |
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18 | !!---------------------------------------------------------------------- |
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19 | !! key_tradmp internal damping |
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20 | !!---------------------------------------------------------------------- |
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21 | !! tra_dmp : update the tracer trend with the internal damping |
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22 | !! tra_dmp_init : initialization, namlist read, parameters control |
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23 | !! dtacof_zoom : restoring coefficient for zoom domain |
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24 | !! dtacof : restoring coefficient for global domain |
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25 | !! cofdis : compute the distance to the coastline |
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26 | !!---------------------------------------------------------------------- |
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27 | USE oce ! ocean dynamics and tracers variables |
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28 | USE dom_oce ! ocean space and time domain variables |
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29 | USE trdmod_oce ! ocean space and time domain variables |
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30 | USE trdtra ! ocean space and time domain variables |
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31 | USE zdf_oce ! ocean vertical physics |
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32 | USE phycst ! Define parameters for the routines |
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33 | USE dtatem ! temperature data |
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34 | USE dtasal ! salinity data |
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35 | USE zdfmxl ! mixed layer depth |
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36 | USE in_out_manager ! I/O manager |
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37 | USE lib_mpp ! distribued memory computing |
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38 | USE prtctl ! Print control |
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39 | |
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40 | IMPLICIT NONE |
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41 | PRIVATE |
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42 | |
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43 | PUBLIC tra_dmp ! routine called by step.F90 |
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44 | PUBLIC tra_dmp_init ! routine called by opa.F90 |
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45 | PUBLIC dtacof ! routine called by tradmp.F90 and trcdmp.F90 |
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46 | PUBLIC dtacof_zoom ! routine called by tradmp.F90 and trcdmp.F90 |
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47 | |
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48 | #if ! defined key_agrif |
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49 | LOGICAL, PUBLIC, PARAMETER :: lk_tradmp = .TRUE. !: internal damping flag |
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50 | #else |
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51 | LOGICAL, PUBLIC :: lk_tradmp = .TRUE. !: internal damping flag |
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52 | #endif |
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53 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: strdmp !: damping salinity trend (psu/s) |
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54 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: ttrdmp !: damping temperature trend (Centigrade/s) |
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55 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: resto !: restoring coeff. on T and S (s-1) |
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56 | |
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57 | ! !!* Namelist namtra_dmp : T & S newtonian damping * |
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58 | INTEGER :: nn_hdmp = -1 ! = 0/-1/'latitude' for damping over T and S |
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59 | INTEGER :: nn_zdmp = 0 ! = 0/1/2 flag for damping in the mixed layer |
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60 | REAL(wp) :: rn_surf = 50. ! surface time scale for internal damping [days] |
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61 | REAL(wp) :: rn_bot = 360. ! bottom time scale for internal damping [days] |
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62 | REAL(wp) :: rn_dep = 800. ! depth of transition between rn_surf and rn_bot [meters] |
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63 | INTEGER :: nn_file = 2 ! = 1 create a damping.coeff NetCDF file |
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64 | |
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65 | !! * Substitutions |
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66 | # include "domzgr_substitute.h90" |
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67 | # include "vectopt_loop_substitute.h90" |
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68 | !!---------------------------------------------------------------------- |
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69 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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70 | !! $Id$ |
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71 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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72 | !!---------------------------------------------------------------------- |
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73 | |
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74 | CONTAINS |
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75 | |
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76 | SUBROUTINE tra_dmp( kt ) |
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77 | !!---------------------------------------------------------------------- |
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78 | !! *** ROUTINE tra_dmp *** |
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79 | !! |
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80 | !! ** Purpose : Compute the tracer trend due to a newtonian damping |
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81 | !! of the tracer field towards given data field and add it to the |
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82 | !! general tracer trends. |
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83 | !! |
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84 | !! ** Method : Newtonian damping towards t_dta and s_dta computed |
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85 | !! and add to the general tracer trends: |
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86 | !! ta = ta + resto * (t_dta - tb) |
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87 | !! sa = sa + resto * (s_dta - sb) |
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88 | !! The trend is computed either throughout the water column |
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89 | !! (nlmdmp=0) or in area of weak vertical mixing (nlmdmp=1) or |
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90 | !! below the well mixed layer (nlmdmp=2) |
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91 | !! |
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92 | !! ** Action : - (ta,sa) tracer trends updated with the damping trend |
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93 | !!---------------------------------------------------------------------- |
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94 | INTEGER, INTENT(in) :: kt ! ocean time-step index |
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95 | !! |
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96 | REAL(wp) :: zta, zsa ! temporary scalars |
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97 | INTEGER :: ji, jj, jk ! dummy loop indices |
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98 | REAL(wp), DIMENSION(:,:,:), ALLOCATABLE :: ztrdt, ztrds |
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99 | !!---------------------------------------------------------------------- |
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100 | |
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101 | IF( l_trdtra ) THEN !* Save ta and sa trends |
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102 | ALLOCATE( ztrdt(jpi,jpj,jpk) ) ; ztrdt(:,:,:) = tsa(:,:,:,jp_tem) |
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103 | ALLOCATE( ztrds(jpi,jpj,jpk) ) ; ztrds(:,:,:) = tsa(:,:,:,jp_sal) |
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104 | ENDIF |
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105 | |
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106 | SELECT CASE ( nn_zdmp ) |
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107 | ! |
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108 | CASE( 0 ) !== newtonian damping throughout the water column ==! |
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109 | DO jk = 1, jpkm1 |
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110 | DO jj = 2, jpjm1 |
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111 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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112 | zta = resto(ji,jj,jk) * ( t_dta(ji,jj,jk) - tsb(ji,jj,jk,jp_tem) ) |
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113 | zsa = resto(ji,jj,jk) * ( s_dta(ji,jj,jk) - tsb(ji,jj,jk,jp_sal) ) |
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114 | tsa(ji,jj,jk,jp_tem) = tsa(ji,jj,jk,jp_tem) + zta |
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115 | tsa(ji,jj,jk,jp_sal) = tsa(ji,jj,jk,jp_sal) + zsa |
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116 | ! save the salinity trend (used in asmtrj) |
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117 | strdmp(ji,jj,jk) = zsa |
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118 | ttrdmp(ji,jj,jk) = zta |
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119 | END DO |
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120 | END DO |
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121 | END DO |
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122 | ! |
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123 | CASE ( 1 ) !== no damping in the turbocline (avt > 5 cm2/s) ==! |
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124 | DO jk = 1, jpkm1 |
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125 | DO jj = 2, jpjm1 |
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126 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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127 | IF( avt(ji,jj,jk) <= 5.e-4 ) THEN |
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128 | zta = resto(ji,jj,jk) * ( t_dta(ji,jj,jk) - tsb(ji,jj,jk,jp_tem) ) |
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129 | zsa = resto(ji,jj,jk) * ( s_dta(ji,jj,jk) - tsb(ji,jj,jk,jp_sal) ) |
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130 | ELSE |
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131 | zta = 0.e0 |
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132 | zsa = 0.e0 |
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133 | ENDIF |
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134 | tsa(ji,jj,jk,jp_tem) = tsa(ji,jj,jk,jp_tem) + zta |
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135 | tsa(ji,jj,jk,jp_sal) = tsa(ji,jj,jk,jp_sal) + zsa |
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136 | ! save the salinity trend (used in asmtrj) |
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137 | strdmp(ji,jj,jk) = zsa |
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138 | ttrdmp(ji,jj,jk) = zta |
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139 | END DO |
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140 | END DO |
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141 | END DO |
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142 | ! |
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143 | CASE ( 2 ) !== no damping in the mixed layer ==! |
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144 | DO jk = 1, jpkm1 |
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145 | DO jj = 2, jpjm1 |
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146 | DO ji = fs_2, fs_jpim1 ! vector opt. |
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147 | IF( fsdept(ji,jj,jk) >= hmlp (ji,jj) ) THEN |
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148 | zta = resto(ji,jj,jk) * ( t_dta(ji,jj,jk) - tsb(ji,jj,jk,jp_tem) ) |
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149 | zsa = resto(ji,jj,jk) * ( s_dta(ji,jj,jk) - tsb(ji,jj,jk,jp_sal) ) |
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150 | ELSE |
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151 | zta = 0.e0 |
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152 | zsa = 0.e0 |
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153 | ENDIF |
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154 | ! add the trends to the general tracer trends |
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155 | tsa(ji,jj,jk,jp_tem) = tsa(ji,jj,jk,jp_tem) + zta |
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156 | tsa(ji,jj,jk,jp_sal) = tsa(ji,jj,jk,jp_sal) + zsa |
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157 | ! save the salinity trend (used in asmtrj) |
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158 | strdmp(ji,jj,jk) = zsa |
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159 | ttrdmp(ji,jj,jk) = zta |
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160 | END DO |
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161 | END DO |
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162 | END DO |
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163 | ! |
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164 | END SELECT |
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165 | |
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166 | IF( l_trdtra ) THEN ! trend diagnostic |
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167 | ztrdt(:,:,:) = tsa(:,:,:,jp_tem) - ztrdt(:,:,:) |
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168 | ztrds(:,:,:) = tsa(:,:,:,jp_sal) - ztrds(:,:,:) |
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169 | CALL trd_tra( kt, 'TRA', jp_tem, jptra_trd_dmp, ztrdt ) |
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170 | CALL trd_tra( kt, 'TRA', jp_sal, jptra_trd_dmp, ztrds ) |
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171 | DEALLOCATE( ztrdt ) ; DEALLOCATE( ztrds ) |
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172 | ENDIF |
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173 | ! ! Control print |
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174 | IF(ln_ctl) CALL prt_ctl( tab3d_1=tsa(:,:,:,jp_tem), clinfo1=' dmp - Ta: ', mask1=tmask, & |
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175 | & tab3d_2=tsa(:,:,:,jp_sal), clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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176 | ! |
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177 | END SUBROUTINE tra_dmp |
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178 | |
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179 | |
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180 | SUBROUTINE tra_dmp_init |
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181 | !!---------------------------------------------------------------------- |
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182 | !! *** ROUTINE tra_dmp_init *** |
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183 | !! |
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184 | !! ** Purpose : Initialization for the newtonian damping |
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185 | !! |
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186 | !! ** Method : read the nammbf namelist and check the parameters |
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187 | !!---------------------------------------------------------------------- |
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188 | NAMELIST/namtra_dmp/ nn_hdmp, nn_zdmp, rn_surf, rn_bot, rn_dep, nn_file |
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189 | !!---------------------------------------------------------------------- |
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190 | |
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191 | REWIND ( numnam ) ! Read Namelist namtra_dmp : temperature and salinity damping term |
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192 | READ ( numnam, namtra_dmp ) |
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193 | IF( lzoom ) nn_zdmp = 0 ! restoring to climatology at closed north or south boundaries |
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194 | |
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195 | IF(lwp) THEN ! Namelist print |
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196 | WRITE(numout,*) |
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197 | WRITE(numout,*) 'tra_dmp : T and S newtonian damping' |
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198 | WRITE(numout,*) '~~~~~~~' |
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199 | WRITE(numout,*) ' Namelist namtra_dmp : set damping parameter' |
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200 | WRITE(numout,*) ' T and S damping option nn_hdmp = ', nn_hdmp |
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201 | WRITE(numout,*) ' mixed layer damping option nn_zdmp = ', nn_zdmp, '(zoom: forced to 0)' |
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202 | WRITE(numout,*) ' surface time scale (days) rn_surf = ', rn_surf |
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203 | WRITE(numout,*) ' bottom time scale (days) rn_bot = ', rn_bot |
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204 | WRITE(numout,*) ' depth of transition (meters) rn_dep = ', rn_dep |
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205 | WRITE(numout,*) ' create a damping.coeff file nn_file = ', nn_file |
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206 | ENDIF |
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207 | |
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208 | SELECT CASE ( nn_hdmp ) |
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209 | CASE ( -1 ) ; IF(lwp) WRITE(numout,*) ' tracer damping in the Med & Red seas only' |
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210 | CASE ( 1:90 ) ; IF(lwp) WRITE(numout,*) ' tracer damping poleward of', nn_hdmp, ' degrees' |
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211 | CASE DEFAULT |
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212 | WRITE(ctmp1,*) ' bad flag value for nn_hdmp = ', nn_hdmp |
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213 | CALL ctl_stop(ctmp1) |
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214 | END SELECT |
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215 | |
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216 | SELECT CASE ( nn_zdmp ) |
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217 | CASE ( 0 ) ; IF(lwp) WRITE(numout,*) ' tracer damping throughout the water column' |
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218 | CASE ( 1 ) ; IF(lwp) WRITE(numout,*) ' no tracer damping in the turbocline (avt > 5 cm2/s)' |
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219 | CASE ( 2 ) ; IF(lwp) WRITE(numout,*) ' no tracer damping in the mixed layer' |
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220 | CASE DEFAULT |
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221 | WRITE(ctmp1,*) 'bad flag value for nn_zdmp = ', nn_zdmp |
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222 | CALL ctl_stop(ctmp1) |
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223 | END SELECT |
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224 | |
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225 | IF( .NOT.lk_dtasal .OR. .NOT.lk_dtatem ) & |
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226 | & CALL ctl_stop( 'no temperature and/or salinity data define key_dtatem and key_dtasal' ) |
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227 | |
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228 | strdmp(:,:,:) = 0.e0 ! internal damping salinity trend (used in asmtrj) |
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229 | ttrdmp(:,:,:) = 0.e0 |
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230 | ! ! Damping coefficients initialization |
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231 | IF( lzoom ) THEN ; CALL dtacof_zoom( resto ) |
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232 | ELSE ; CALL dtacof( nn_hdmp, rn_surf, rn_bot, rn_dep, & |
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233 | & nn_file, 'TRA' , resto ) |
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234 | ENDIF |
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235 | ! |
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236 | END SUBROUTINE tra_dmp_init |
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237 | |
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238 | |
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239 | SUBROUTINE dtacof_zoom( presto ) |
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240 | !!---------------------------------------------------------------------- |
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241 | !! *** ROUTINE dtacof_zoom *** |
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242 | !! |
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243 | !! ** Purpose : Compute the damping coefficient for zoom domain |
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244 | !! |
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245 | !! ** Method : - set along closed boundary due to zoom a damping over |
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246 | !! 6 points with a max time scale of 5 days. |
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247 | !! - ORCA arctic/antarctic zoom: set the damping along |
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248 | !! south/north boundary over a latitude strip. |
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249 | !! |
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250 | !! ** Action : - resto, the damping coeff. for T and S |
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251 | !!---------------------------------------------------------------------- |
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252 | !! * Arguments |
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253 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: presto !: restoring coeff. (s-1) |
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254 | ! |
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255 | INTEGER :: ji, jj, jk, jn ! dummy loop indices |
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256 | REAL(wp) :: zlat, zlat0, zlat1, zlat2 ! temporary scalar |
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257 | REAL(wp), DIMENSION(6) :: zfact ! temporary workspace |
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258 | !!---------------------------------------------------------------------- |
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259 | |
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260 | zfact(1) = 1. |
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261 | zfact(2) = 1. |
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262 | zfact(3) = 11./12. |
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263 | zfact(4) = 8./12. |
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264 | zfact(5) = 4./12. |
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265 | zfact(6) = 1./12. |
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266 | zfact(:) = zfact(:) / ( 5. * rday ) ! 5 days max restoring time scale |
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267 | |
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268 | presto(:,:,:) = 0.e0 |
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269 | |
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270 | ! damping along the forced closed boundary over 6 grid-points |
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271 | DO jn = 1, 6 |
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272 | IF( lzoom_w ) presto( mi0(jn+jpizoom):mi1(jn+jpizoom), : , : ) = zfact(jn) ! west closed |
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273 | IF( lzoom_s ) presto( : , mj0(jn+jpjzoom):mj1(jn+jpjzoom), : ) = zfact(jn) ! south closed |
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274 | IF( lzoom_e ) presto( mi0(jpiglo+jpizoom-1-jn):mi1(jpiglo+jpizoom-1-jn) , : , : ) = zfact(jn) ! east closed |
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275 | IF( lzoom_n ) presto( : , mj0(jpjglo+jpjzoom-1-jn):mj1(jpjglo+jpjzoom-1-jn) , : ) = zfact(jn) ! north closed |
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276 | END DO |
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277 | |
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278 | ! ! ==================================================== |
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279 | IF( lzoom_arct .AND. lzoom_anta ) THEN ! ORCA configuration : arctic zoom or antarctic zoom |
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280 | ! ! ==================================================== |
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281 | IF(lwp) WRITE(numout,*) |
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282 | IF(lwp .AND. lzoom_arct ) WRITE(numout,*) ' dtacof_zoom : ORCA Arctic zoom' |
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283 | IF(lwp .AND. lzoom_arct ) WRITE(numout,*) ' dtacof_zoom : ORCA Antarctic zoom' |
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284 | IF(lwp) WRITE(numout,*) |
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285 | ! |
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286 | ! ! Initialization : |
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287 | presto(:,:,:) = 0.e0 |
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288 | zlat0 = 10. ! zlat0 : latitude strip where resto decreases |
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289 | zlat1 = 30. ! zlat1 : resto = 1 before zlat1 |
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290 | zlat2 = zlat1 + zlat0 ! zlat2 : resto decreases from 1 to 0 between zlat1 and zlat2 |
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291 | |
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292 | DO jk = 2, jpkm1 ! Compute arrays resto ; value for internal damping : 5 days |
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293 | DO jj = 1, jpj |
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294 | DO ji = 1, jpi |
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295 | zlat = ABS( gphit(ji,jj) ) |
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296 | IF( zlat1 <= zlat .AND. zlat <= zlat2 ) THEN |
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297 | presto(ji,jj,jk) = 0.5 * ( 1./(5.*rday) ) * ( 1. - cos(rpi*(zlat2-zlat)/zlat0) ) |
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298 | ELSEIF( zlat < zlat1 ) THEN |
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299 | presto(ji,jj,jk) = 1./(5.*rday) |
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300 | ENDIF |
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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 | ENDIF |
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306 | ! ! Mask resto array |
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307 | presto(:,:,:) = presto(:,:,:) * tmask(:,:,:) |
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308 | ! |
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309 | END SUBROUTINE dtacof_zoom |
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310 | |
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311 | |
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312 | SUBROUTINE dtacof( kn_hdmp, pn_surf, pn_bot, pn_dep, & |
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313 | & kn_file, cdtype , presto ) |
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314 | !!---------------------------------------------------------------------- |
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315 | !! *** ROUTINE dtacof *** |
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316 | !! |
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317 | !! ** Purpose : Compute the damping coefficient |
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318 | !! |
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319 | !! ** Method : Arrays defining the damping are computed for each grid |
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320 | !! point for temperature and salinity (resto) |
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321 | !! Damping depends on distance to coast, depth and latitude |
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322 | !! |
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323 | !! ** Action : - resto, the damping coeff. for T and S |
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324 | !!---------------------------------------------------------------------- |
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325 | USE iom |
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326 | USE ioipsl |
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327 | !! * Arguments |
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328 | INTEGER , INTENT(in ) :: kn_hdmp !: damping option |
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329 | REAL(wp) , INTENT(in ) :: pn_surf !: surface time scale (days) |
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330 | REAL(wp) , INTENT(in ) :: pn_bot !: bottom time scale (days) |
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331 | REAL(wp) , INTENT(in ) :: pn_dep !: depth of transition (meters) |
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332 | INTEGER , INTENT(in ) :: kn_file !: save the damping coef on a file or not |
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333 | CHARACTER(len=3) , INTENT(in ) :: cdtype ! =TRA or TRC (tracer indicator) |
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334 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT(inout) :: presto !: restoring coeff. (s-1) |
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335 | ! |
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336 | INTEGER :: ji, jj, jk ! dummy loop indices |
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337 | INTEGER :: ii0, ii1, ij0, ij1 ! - - |
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338 | INTEGER :: inum0 ! logical unit for file restoring damping term |
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339 | INTEGER :: icot ! logical unit for file distance to the coast |
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340 | REAL(wp) :: zinfl, zlon ! temporary scalars |
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341 | REAL(wp) :: zlat, zlat0, zlat1, zlat2 ! - - |
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342 | REAL(wp) :: zsdmp, zbdmp ! - - |
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343 | REAL(wp), DIMENSION(jpk) :: zhfac |
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344 | REAL(wp), DIMENSION(jpi,jpj) :: zmrs |
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345 | REAL(wp), DIMENSION(jpi,jpj,jpk) :: zdct |
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346 | CHARACTER(len=20) :: cfile |
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347 | !!---------------------------------------------------------------------- |
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348 | |
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349 | ! ==================================== |
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350 | ! ORCA configuration : global domain |
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351 | ! ==================================== |
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352 | |
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353 | IF(lwp) WRITE(numout,*) |
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354 | IF(lwp) WRITE(numout,*) ' dtacof : Global domain of ORCA' |
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355 | IF(lwp) WRITE(numout,*) ' ------------------------------' |
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356 | |
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357 | ! ... Initialization : |
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358 | presto(:,:,:) = 0.e0 |
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359 | ! |
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360 | IF( kn_hdmp > 0 ) THEN ! Damping poleward of 'nn_hdmp' degrees ! |
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361 | ! !-----------------------------------------! |
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362 | IF(lwp) WRITE(numout,*) |
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363 | IF(lwp) WRITE(numout,*) ' Damping poleward of ', kn_hdmp,' deg.' |
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364 | ! |
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365 | CALL iom_open ( 'dist.coast.nc', icot, ldstop = .FALSE. ) |
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366 | ! |
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367 | IF( icot > 0 ) THEN ! distance-to-coast read in file |
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368 | CALL iom_get ( icot, jpdom_data, 'Tcoast', zdct ) |
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369 | CALL iom_close( icot ) |
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370 | ELSE ! distance-to-coast computed and saved in file (output in zdct) |
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371 | CALL cofdis( zdct ) |
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372 | ENDIF |
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373 | |
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374 | ! ! Compute arrays resto |
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375 | zinfl = 1000.e3 ! distance of influence for damping term |
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376 | zlat0 = 10. ! latitude strip where resto decreases |
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377 | zlat1 = REAL( kn_hdmp ) ! resto = 0 between -zlat1 and zlat1 |
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378 | zlat2 = zlat1 + zlat0 ! resto increases from 0 to 1 between |zlat1| and |zlat2| |
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379 | |
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380 | DO jj = 1, jpj |
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381 | DO ji = 1, jpi |
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382 | zlat = ABS( gphit(ji,jj) ) |
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383 | IF ( zlat1 <= zlat .AND. zlat <= zlat2 ) THEN |
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384 | presto(ji,jj,1) = 0.5 * ( 1. - cos(rpi*(zlat-zlat1)/zlat0 ) ) |
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385 | ELSEIF ( zlat > zlat2 ) THEN |
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386 | presto(ji,jj,1) = 1. |
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387 | ENDIF |
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388 | END DO |
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389 | END DO |
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390 | |
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391 | IF ( kn_hdmp == 20 ) THEN ! North Indian ocean (20N/30N x 45E/100E) : resto=0 |
---|
392 | DO jj = 1, jpj |
---|
393 | DO ji = 1, jpi |
---|
394 | zlat = gphit(ji,jj) |
---|
395 | zlon = MOD( glamt(ji,jj), 360. ) |
---|
396 | IF ( zlat1 < zlat .AND. zlat < zlat2 .AND. 45. < zlon .AND. zlon < 100. ) THEN |
---|
397 | presto(ji,jj,1) = 0.e0 |
---|
398 | ENDIF |
---|
399 | END DO |
---|
400 | END DO |
---|
401 | ENDIF |
---|
402 | |
---|
403 | zsdmp = 1./(pn_surf * rday) |
---|
404 | zbdmp = 1./(pn_bot * rday) |
---|
405 | DO jk = 2, jpkm1 |
---|
406 | DO jj = 1, jpj |
---|
407 | DO ji = 1, jpi |
---|
408 | zdct(ji,jj,jk) = MIN( zinfl, zdct(ji,jj,jk) ) |
---|
409 | ! ... Decrease the value in the vicinity of the coast |
---|
410 | presto(ji,jj,jk) = presto(ji,jj,1) * 0.5 * ( 1. - COS( rpi*zdct(ji,jj,jk)/zinfl) ) |
---|
411 | ! ... Vertical variation from zsdmp (sea surface) to zbdmp (bottom) |
---|
412 | presto(ji,jj,jk) = presto(ji,jj,jk) * ( zbdmp + (zsdmp-zbdmp)*EXP(-fsdept(ji,jj,jk)/pn_dep) ) |
---|
413 | END DO |
---|
414 | END DO |
---|
415 | END DO |
---|
416 | ! |
---|
417 | ENDIF |
---|
418 | |
---|
419 | |
---|
420 | IF( cp_cfg == "orca" .AND. ( kn_hdmp > 0 .OR. kn_hdmp == -1 ) ) THEN |
---|
421 | |
---|
422 | ! ! ========================= |
---|
423 | ! ! Med and Red Sea damping |
---|
424 | ! ! ========================= |
---|
425 | IF(lwp)WRITE(numout,*) |
---|
426 | IF(lwp)WRITE(numout,*) ' ORCA configuration: Damping in Med and Red Seas' |
---|
427 | |
---|
428 | |
---|
429 | zmrs(:,:) = 0.e0 ! damping term on the Med or Red Sea |
---|
430 | |
---|
431 | SELECT CASE ( jp_cfg ) |
---|
432 | ! ! ======================= |
---|
433 | CASE ( 4 ) ! ORCA_R4 configuration |
---|
434 | ! ! ======================= |
---|
435 | ! Mediterranean Sea |
---|
436 | ij0 = 50 ; ij1 = 56 |
---|
437 | ii0 = 81 ; ii1 = 91 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
---|
438 | ij0 = 50 ; ij1 = 55 |
---|
439 | ii0 = 75 ; ii1 = 80 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
---|
440 | ij0 = 52 ; ij1 = 53 |
---|
441 | ii0 = 70 ; ii1 = 74 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
---|
442 | ! Smooth transition from 0 at surface to 1./rday at the 18th level in Med and Red Sea |
---|
443 | DO jk = 1, 17 |
---|
444 | zhfac (jk) = 0.5*( 1.- COS( rpi*(jk-1)/16. ) ) / rday |
---|
445 | END DO |
---|
446 | DO jk = 18, jpkm1 |
---|
447 | zhfac (jk) = 1./rday |
---|
448 | END DO |
---|
449 | ! ! ======================= |
---|
450 | CASE ( 2 ) ! ORCA_R2 configuration |
---|
451 | ! ! ======================= |
---|
452 | ! Mediterranean Sea |
---|
453 | ij0 = 96 ; ij1 = 110 |
---|
454 | ii0 = 157 ; ii1 = 181 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
---|
455 | ij0 = 100 ; ij1 = 110 |
---|
456 | ii0 = 144 ; ii1 = 156 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
---|
457 | ij0 = 100 ; ij1 = 103 |
---|
458 | ii0 = 139 ; ii1 = 143 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
---|
459 | ! Decrease before Gibraltar Strait |
---|
460 | ij0 = 101 ; ij1 = 102 |
---|
461 | ii0 = 139 ; ii1 = 141 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.e0 |
---|
462 | ii0 = 142 ; ii1 = 142 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 / 90.e0 |
---|
463 | ii0 = 143 ; ii1 = 143 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.40e0 |
---|
464 | ii0 = 144 ; ii1 = 144 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.75e0 |
---|
465 | ! Red Sea |
---|
466 | ij0 = 87 ; ij1 = 96 |
---|
467 | ii0 = 147 ; ii1 = 163 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
---|
468 | ! Decrease before Bab el Mandeb Strait |
---|
469 | ij0 = 91 ; ij1 = 91 |
---|
470 | ii0 = 153 ; ii1 = 160 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.80e0 |
---|
471 | ij0 = 90 ; ij1 = 90 |
---|
472 | ii0 = 153 ; ii1 = 160 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.40e0 |
---|
473 | ij0 = 89 ; ij1 = 89 |
---|
474 | ii0 = 158 ; ii1 = 160 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 / 90.e0 |
---|
475 | ij0 = 88 ; ij1 = 88 |
---|
476 | ii0 = 160 ; ii1 = 163 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.e0 |
---|
477 | ! Smooth transition from 0 at surface to 1./rday at the 18th level in Med and Red Sea |
---|
478 | DO jk = 1, 17 |
---|
479 | zhfac (jk) = 0.5*( 1.- COS( rpi*(jk-1)/16. ) ) / rday |
---|
480 | END DO |
---|
481 | DO jk = 18, jpkm1 |
---|
482 | zhfac (jk) = 1./rday |
---|
483 | END DO |
---|
484 | ! ! ======================= |
---|
485 | CASE ( 05 ) ! ORCA_R05 configuration |
---|
486 | ! ! ======================= |
---|
487 | ! Mediterranean Sea |
---|
488 | ii0 = 568 ; ii1 = 574 |
---|
489 | ij0 = 324 ; ij1 = 333 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
---|
490 | ii0 = 575 ; ii1 = 658 |
---|
491 | ij0 = 314 ; ij1 = 366 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
---|
492 | ! Black Sea (remaining part |
---|
493 | ii0 = 641 ; ii1 = 651 |
---|
494 | ij0 = 367 ; ij1 = 372 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
---|
495 | ! Decrease before Gibraltar Strait |
---|
496 | ij0 = 324 ; ij1 = 333 |
---|
497 | ii0 = 565 ; ii1 = 565 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 / 90.e0 |
---|
498 | ii0 = 566 ; ii1 = 566 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.40 |
---|
499 | ii0 = 567 ; ii1 = 567 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 0.75 |
---|
500 | ! Red Sea |
---|
501 | ii0 = 641 ; ii1 = 665 |
---|
502 | ij0 = 270 ; ij1 = 310 ; zmrs( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 1.e0 |
---|
503 | ! Decrease before Bab el Mandeb Strait |
---|
504 | ii0 = 666 ; ii1 = 675 |
---|
505 | ij0 = 270 ; ij1 = 290 |
---|
506 | DO ji = mi0(ii0), mi1(ii1) |
---|
507 | zmrs( ji , mj0(ij0):mj1(ij1) ) = 0.1 * ABS( FLOAT(ji - mi1(ii1)) ) |
---|
508 | END DO |
---|
509 | zsdmp = 1./(pn_surf * rday) |
---|
510 | zbdmp = 1./(pn_bot * rday) |
---|
511 | DO jk = 1, jpk |
---|
512 | zhfac (jk) = ( zbdmp + (zsdmp-zbdmp) * EXP(-fsdept(1,1,jk)/pn_dep) ) |
---|
513 | END DO |
---|
514 | ! ! ======================== |
---|
515 | CASE ( 025 ) ! ORCA_R025 configuration |
---|
516 | ! ! ======================== |
---|
517 | CALL ctl_stop( ' Not yet implemented in ORCA_R025' ) |
---|
518 | ! |
---|
519 | END SELECT |
---|
520 | |
---|
521 | DO jk = 1, jpkm1 |
---|
522 | presto(:,:,jk) = zmrs(:,:) * zhfac(jk) + ( 1. - zmrs(:,:) ) * presto(:,:,jk) |
---|
523 | END DO |
---|
524 | |
---|
525 | ! Mask resto array and set to 0 first and last levels |
---|
526 | presto(:,:, : ) = presto(:,:,:) * tmask(:,:,:) |
---|
527 | presto(:,:, 1 ) = 0.e0 |
---|
528 | presto(:,:,jpk) = 0.e0 |
---|
529 | ! !--------------------! |
---|
530 | ELSE ! No damping ! |
---|
531 | ! !--------------------! |
---|
532 | CALL ctl_stop( 'Choose a correct value of nn_hdmp or DO NOT defined key_tradmp' ) |
---|
533 | ENDIF |
---|
534 | |
---|
535 | ! !--------------------------------! |
---|
536 | IF( kn_file == 1 ) THEN ! save damping coef. in a file ! |
---|
537 | ! !--------------------------------! |
---|
538 | IF(lwp) WRITE(numout,*) ' create damping.coeff.nc file' |
---|
539 | IF( cdtype == 'TRA' ) cfile = 'damping.coeff' |
---|
540 | IF( cdtype == 'TRC' ) cfile = 'damping.coeff.trc' |
---|
541 | cfile = TRIM( cfile ) |
---|
542 | CALL iom_open ( cfile, inum0, ldwrt = .TRUE., kiolib = jprstlib ) |
---|
543 | CALL iom_rstput( 0, 0, inum0, 'Resto', presto ) |
---|
544 | CALL iom_close ( inum0 ) |
---|
545 | ENDIF |
---|
546 | ! |
---|
547 | END SUBROUTINE dtacof |
---|
548 | |
---|
549 | |
---|
550 | SUBROUTINE cofdis( pdct ) |
---|
551 | !!---------------------------------------------------------------------- |
---|
552 | !! *** ROUTINE cofdis *** |
---|
553 | !! |
---|
554 | !! ** Purpose : Compute the distance between ocean T-points and the |
---|
555 | !! ocean model coastlines. Save the distance in a NetCDF file. |
---|
556 | !! |
---|
557 | !! ** Method : For each model level, the distance-to-coast is |
---|
558 | !! computed as follows : |
---|
559 | !! - The coastline is defined as the serie of U-,V-,F-points |
---|
560 | !! that are at the ocean-land bound. |
---|
561 | !! - For each ocean T-point, the distance-to-coast is then |
---|
562 | !! computed as the smallest distance (on the sphere) between the |
---|
563 | !! T-point and all the coastline points. |
---|
564 | !! - For land T-points, the distance-to-coast is set to zero. |
---|
565 | !! C A U T I O N : Computation not yet implemented in mpp case. |
---|
566 | !! |
---|
567 | !! ** Action : - pdct, distance to the coastline (argument) |
---|
568 | !! - NetCDF file 'dist.coast.nc' |
---|
569 | !!---------------------------------------------------------------------- |
---|
570 | USE ioipsl ! IOipsl librairy |
---|
571 | !! |
---|
572 | REAL(wp), DIMENSION(jpi,jpj,jpk), INTENT( out ) :: pdct ! distance to the coastline |
---|
573 | !! |
---|
574 | INTEGER :: ji, jj, jk, jl ! dummy loop indices |
---|
575 | INTEGER :: iju, ijt ! temporary integers |
---|
576 | INTEGER :: icoast, itime |
---|
577 | INTEGER :: icot ! logical unit for file distance to the coast |
---|
578 | LOGICAL, DIMENSION(jpi,jpj) :: llcotu, llcotv, llcotf ! ??? |
---|
579 | CHARACTER (len=32) :: clname |
---|
580 | REAL(wp) :: zdate0 |
---|
581 | REAL(wp), DIMENSION(jpi,jpj) :: zxt, zyt, zzt, zmask ! cartesian coordinates for T-points |
---|
582 | REAL(wp), DIMENSION(3*jpi*jpj) :: zxc, zyc, zzc, zdis ! temporary workspace |
---|
583 | !!---------------------------------------------------------------------- |
---|
584 | |
---|
585 | ! 0. Initialization |
---|
586 | ! ----------------- |
---|
587 | IF(lwp) WRITE(numout,*) |
---|
588 | IF(lwp) WRITE(numout,*) 'cofdis : compute the distance to coastline' |
---|
589 | IF(lwp) WRITE(numout,*) '~~~~~~' |
---|
590 | IF(lwp) WRITE(numout,*) |
---|
591 | IF( lk_mpp ) & |
---|
592 | & CALL ctl_stop(' Computation not yet implemented with key_mpp_...', & |
---|
593 | & ' Rerun the code on another computer or ', & |
---|
594 | & ' create the "dist.coast.nc" file using IDL' ) |
---|
595 | |
---|
596 | pdct(:,:,:) = 0.e0 |
---|
597 | zxt(:,:) = cos( rad * gphit(:,:) ) * cos( rad * glamt(:,:) ) |
---|
598 | zyt(:,:) = cos( rad * gphit(:,:) ) * sin( rad * glamt(:,:) ) |
---|
599 | zzt(:,:) = sin( rad * gphit(:,:) ) |
---|
600 | |
---|
601 | |
---|
602 | ! 1. Loop on vertical levels |
---|
603 | ! -------------------------- |
---|
604 | ! ! =============== |
---|
605 | DO jk = 1, jpkm1 ! Horizontal slab |
---|
606 | ! ! =============== |
---|
607 | ! Define the coastline points (U, V and F) |
---|
608 | DO jj = 2, jpjm1 |
---|
609 | DO ji = 2, jpim1 |
---|
610 | zmask(ji,jj) = ( tmask(ji,jj+1,jk) + tmask(ji+1,jj+1,jk) & |
---|
611 | & + tmask(ji,jj ,jk) + tmask(ji+1,jj ,jk) ) |
---|
612 | llcotu(ji,jj) = ( tmask(ji,jj, jk) + tmask(ji+1,jj ,jk) == 1. ) |
---|
613 | llcotv(ji,jj) = ( tmask(ji,jj ,jk) + tmask(ji ,jj+1,jk) == 1. ) |
---|
614 | llcotf(ji,jj) = ( zmask(ji,jj) > 0. ) .AND. ( zmask(ji,jj) < 4. ) |
---|
615 | END DO |
---|
616 | END DO |
---|
617 | |
---|
618 | ! Lateral boundaries conditions |
---|
619 | llcotu(:, 1 ) = umask(:, 2 ,jk) == 1 |
---|
620 | llcotu(:,jpj) = umask(:,jpjm1,jk) == 1 |
---|
621 | llcotv(:, 1 ) = vmask(:, 2 ,jk) == 1 |
---|
622 | llcotv(:,jpj) = vmask(:,jpjm1,jk) == 1 |
---|
623 | llcotf(:, 1 ) = fmask(:, 2 ,jk) == 1 |
---|
624 | llcotf(:,jpj) = fmask(:,jpjm1,jk) == 1 |
---|
625 | |
---|
626 | IF( nperio == 1 .OR. nperio == 4 .OR. nperio == 6 ) THEN |
---|
627 | llcotu( 1 ,:) = llcotu(jpim1,:) |
---|
628 | llcotu(jpi,:) = llcotu( 2 ,:) |
---|
629 | llcotv( 1 ,:) = llcotv(jpim1,:) |
---|
630 | llcotv(jpi,:) = llcotv( 2 ,:) |
---|
631 | llcotf( 1 ,:) = llcotf(jpim1,:) |
---|
632 | llcotf(jpi,:) = llcotf( 2 ,:) |
---|
633 | ELSE |
---|
634 | llcotu( 1 ,:) = umask( 2 ,:,jk) == 1 |
---|
635 | llcotu(jpi,:) = umask(jpim1,:,jk) == 1 |
---|
636 | llcotv( 1 ,:) = vmask( 2 ,:,jk) == 1 |
---|
637 | llcotv(jpi,:) = vmask(jpim1,:,jk) == 1 |
---|
638 | llcotf( 1 ,:) = fmask( 2 ,:,jk) == 1 |
---|
639 | llcotf(jpi,:) = fmask(jpim1,:,jk) == 1 |
---|
640 | ENDIF |
---|
641 | IF( nperio == 3 .OR. nperio == 4 ) THEN |
---|
642 | DO ji = 1, jpim1 |
---|
643 | iju = jpi - ji + 1 |
---|
644 | llcotu(ji,jpj ) = llcotu(iju,jpj-2) |
---|
645 | llcotf(ji,jpjm1) = llcotf(iju,jpj-2) |
---|
646 | llcotf(ji,jpj ) = llcotf(iju,jpj-3) |
---|
647 | END DO |
---|
648 | DO ji = jpi/2, jpim1 |
---|
649 | iju = jpi - ji + 1 |
---|
650 | llcotu(ji,jpjm1) = llcotu(iju,jpjm1) |
---|
651 | END DO |
---|
652 | DO ji = 2, jpi |
---|
653 | ijt = jpi - ji + 2 |
---|
654 | llcotv(ji,jpjm1) = llcotv(ijt,jpj-2) |
---|
655 | llcotv(ji,jpj ) = llcotv(ijt,jpj-3) |
---|
656 | END DO |
---|
657 | ENDIF |
---|
658 | IF( nperio == 5 .OR. nperio == 6 ) THEN |
---|
659 | DO ji = 1, jpim1 |
---|
660 | iju = jpi - ji |
---|
661 | llcotu(ji,jpj ) = llcotu(iju,jpjm1) |
---|
662 | llcotf(ji,jpj ) = llcotf(iju,jpj-2) |
---|
663 | END DO |
---|
664 | DO ji = jpi/2, jpim1 |
---|
665 | iju = jpi - ji |
---|
666 | llcotf(ji,jpjm1) = llcotf(iju,jpjm1) |
---|
667 | END DO |
---|
668 | DO ji = 1, jpi |
---|
669 | ijt = jpi - ji + 1 |
---|
670 | llcotv(ji,jpj ) = llcotv(ijt,jpjm1) |
---|
671 | END DO |
---|
672 | DO ji = jpi/2+1, jpi |
---|
673 | ijt = jpi - ji + 1 |
---|
674 | llcotv(ji,jpjm1) = llcotv(ijt,jpjm1) |
---|
675 | END DO |
---|
676 | ENDIF |
---|
677 | |
---|
678 | ! Compute cartesian coordinates of coastline points |
---|
679 | ! and the number of coastline points |
---|
680 | |
---|
681 | icoast = 0 |
---|
682 | DO jj = 1, jpj |
---|
683 | DO ji = 1, jpi |
---|
684 | IF( llcotf(ji,jj) ) THEN |
---|
685 | icoast = icoast + 1 |
---|
686 | zxc(icoast) = COS( rad*gphif(ji,jj) ) * COS( rad*glamf(ji,jj) ) |
---|
687 | zyc(icoast) = COS( rad*gphif(ji,jj) ) * SIN( rad*glamf(ji,jj) ) |
---|
688 | zzc(icoast) = SIN( rad*gphif(ji,jj) ) |
---|
689 | ENDIF |
---|
690 | IF( llcotu(ji,jj) ) THEN |
---|
691 | icoast = icoast+1 |
---|
692 | zxc(icoast) = COS( rad*gphiu(ji,jj) ) * COS( rad*glamu(ji,jj) ) |
---|
693 | zyc(icoast) = COS( rad*gphiu(ji,jj) ) * SIN( rad*glamu(ji,jj) ) |
---|
694 | zzc(icoast) = SIN( rad*gphiu(ji,jj) ) |
---|
695 | ENDIF |
---|
696 | IF( llcotv(ji,jj) ) THEN |
---|
697 | icoast = icoast+1 |
---|
698 | zxc(icoast) = COS( rad*gphiv(ji,jj) ) * COS( rad*glamv(ji,jj) ) |
---|
699 | zyc(icoast) = COS( rad*gphiv(ji,jj) ) * SIN( rad*glamv(ji,jj) ) |
---|
700 | zzc(icoast) = SIN( rad*gphiv(ji,jj) ) |
---|
701 | ENDIF |
---|
702 | END DO |
---|
703 | END DO |
---|
704 | |
---|
705 | ! Distance for the T-points |
---|
706 | |
---|
707 | DO jj = 1, jpj |
---|
708 | DO ji = 1, jpi |
---|
709 | IF( tmask(ji,jj,jk) == 0. ) THEN |
---|
710 | pdct(ji,jj,jk) = 0. |
---|
711 | ELSE |
---|
712 | DO jl = 1, icoast |
---|
713 | zdis(jl) = ( zxt(ji,jj) - zxc(jl) )**2 & |
---|
714 | & + ( zyt(ji,jj) - zyc(jl) )**2 & |
---|
715 | & + ( zzt(ji,jj) - zzc(jl) )**2 |
---|
716 | END DO |
---|
717 | pdct(ji,jj,jk) = ra * SQRT( MINVAL( zdis(1:icoast) ) ) |
---|
718 | ENDIF |
---|
719 | END DO |
---|
720 | END DO |
---|
721 | ! ! =============== |
---|
722 | END DO ! End of slab |
---|
723 | ! ! =============== |
---|
724 | |
---|
725 | |
---|
726 | ! 2. Create the distance to the coast file in NetCDF format |
---|
727 | ! ---------------------------------------------------------- |
---|
728 | clname = 'dist.coast' |
---|
729 | itime = 0 |
---|
730 | CALL ymds2ju( 0 , 1 , 1 , 0.e0 , zdate0 ) |
---|
731 | CALL restini( 'NONE', jpi , jpj , glamt, gphit , & |
---|
732 | & jpk , gdept_0, clname, itime, zdate0, & |
---|
733 | & rdt , icot ) |
---|
734 | CALL restput( icot, 'Tcoast', jpi, jpj, jpk, 0, pdct ) |
---|
735 | CALL restclo( icot ) |
---|
736 | |
---|
737 | END SUBROUTINE cofdis |
---|
738 | |
---|
739 | #else |
---|
740 | !!---------------------------------------------------------------------- |
---|
741 | !! Default key NO internal damping |
---|
742 | !!---------------------------------------------------------------------- |
---|
743 | LOGICAL , PUBLIC, PARAMETER :: lk_tradmp = .FALSE. !: internal damping flag |
---|
744 | CONTAINS |
---|
745 | SUBROUTINE tra_dmp( kt ) ! Empty routine |
---|
746 | WRITE(*,*) 'tra_dmp: You should not have seen this print! error?', kt |
---|
747 | END SUBROUTINE tra_dmp |
---|
748 | SUBROUTINE tra_dmp_init ! Empty routine |
---|
749 | END SUBROUTINE tra_dmp_init |
---|
750 | #endif |
---|
751 | |
---|
752 | !!====================================================================== |
---|
753 | END MODULE tradmp |
---|