1 | MODULE asmtrj |
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2 | !!====================================================================== |
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3 | !! *** MODULE asmtrj *** |
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4 | !! Assimilation trajectory interface: Write to file the background state and the model state trajectory |
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5 | !!====================================================================== |
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6 | !! History : ! 2007-03 (M. Martin) Met. Office version |
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7 | !! ! 2007-04 (A. Weaver) asm_trj_wri, original code |
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8 | !! ! 2007-03 (K. Mogensen) Adapt to NEMOVAR and use IOM instead of IOIPSL |
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9 | !! ! 2007-04 (A. Weaver) Name change (formally asmbkg.F90). Distinguish |
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10 | !! background states in Jb term and at analysis time. |
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11 | !! Include state trajectory routine (currently empty) |
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12 | !! ! 2007-07 (A. Weaver) Add tke_rst and flt_rst for case nitbkg=0 |
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13 | !! ! 2009-03 (F. Vigilant) Add hmlp (zdfmxl) for no tracer nmldp=2 |
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14 | !! ! 2009-06 (F. Vigilant) asm_trj_wri: special case when kt=nit000-1 |
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15 | !! ! 2009-07 (F. Vigilant) asm_trj_wri: add computation of eiv at restart |
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16 | !!---------------------------------------------------------------------- |
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17 | |
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18 | !!---------------------------------------------------------------------- |
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19 | !! 'key_asminc' : Switch on the assimilation increment interface |
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20 | !!---------------------------------------------------------------------- |
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21 | !! asm_bkg_wri : Write out the background state |
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22 | !! asm_trj_wri : Write out the model state trajectory (used with 4D-Var) |
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23 | !!---------------------------------------------------------------------- |
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24 | USE oce ! Dynamics and active tracers defined in memory |
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25 | USE sbc_oce ! Ocean surface boundary conditions |
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26 | USE zdf_oce ! Vertical mixing variables |
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27 | USE zdfddm ! Double diffusion mixing parameterization |
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28 | USE ldftra_oce ! Lateral tracer mixing coefficient defined in memory |
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29 | USE ldfslp ! Slopes of neutral surfaces |
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30 | USE tradmp ! Tracer damping |
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31 | #if defined key_zdftke |
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32 | USE zdftke ! TKE vertical physics |
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33 | #endif |
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34 | USE eosbn2 ! Equation of state (eos_bn2 routine) |
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35 | USE zdfmxl ! Mixed layer depth |
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36 | USE dom_oce, ONLY : ndastp |
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37 | USE sol_oce, ONLY : gcx ! Solver variables defined in memory |
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38 | USE in_out_manager ! I/O manager |
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39 | USE iom ! I/O module |
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40 | USE asmpar ! Parameters for the assmilation interface |
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41 | USE zdfmxl ! mixed layer depth |
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42 | #if defined key_traldf_c2d |
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43 | USE ldfeiv ! eddy induced velocity coef. (ldf_eiv routine) |
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44 | #endif |
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45 | |
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46 | IMPLICIT NONE |
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47 | PRIVATE |
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48 | |
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49 | PUBLIC asm_bkg_wri !: Write out the background state |
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50 | PUBLIC asm_trj_wri !: Write out the background state |
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51 | |
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52 | !! * Control permutation of array indices |
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53 | # include "oce_ftrans.h90" |
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54 | # include "sbc_oce_ftrans.h90" |
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55 | # include "zdf_oce_ftrans.h90" |
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56 | # include "zdfddm_ftrans.h90" |
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57 | # include "ldftra_oce_ftrans.h90" |
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58 | # include "ldfslp_ftrans.h90" |
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59 | # include "tradmp_ftrans.h90" |
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60 | #if defined key_zdftke |
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61 | # include "zdftke_ftrans.h90" |
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62 | #endif |
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63 | |
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64 | !!---------------------------------------------------------------------- |
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65 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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66 | !! $Id$ |
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67 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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68 | !!---------------------------------------------------------------------- |
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69 | CONTAINS |
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70 | |
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71 | SUBROUTINE asm_bkg_wri( kt ) |
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72 | !!----------------------------------------------------------------------- |
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73 | !! *** ROUTINE asm_bkg_wri *** |
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74 | !! |
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75 | !! ** Purpose : Write to file the background state for later use in the |
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76 | !! inner loop of data assimilation or for direct initialization |
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77 | !! in the outer loop. |
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78 | !! |
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79 | !! ** Method : Write out the background state for use in the Jb term |
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80 | !! in the cost function and for use with direct initialization |
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81 | !! at analysis time. |
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82 | !!----------------------------------------------------------------------- |
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83 | INTEGER, INTENT( IN ) :: kt ! Current time-step |
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84 | ! |
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85 | CHARACTER (LEN=50) :: cl_asmbkg |
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86 | CHARACTER (LEN=50) :: cl_asmdin |
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87 | LOGICAL :: llok ! Check if file exists |
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88 | INTEGER :: inum ! File unit number |
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89 | REAL(wp) :: zdate ! Date |
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90 | !!----------------------------------------------------------------------- |
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91 | |
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92 | ! !------------------------------------------- |
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93 | IF( kt == nitbkg_r ) THEN ! Write out background at time step nitbkg_r |
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94 | ! !-----------------------------------======== |
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95 | ! |
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96 | WRITE(cl_asmbkg, FMT='(A,".nc")' ) TRIM( c_asmbkg ) |
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97 | cl_asmbkg = TRIM( cl_asmbkg ) |
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98 | INQUIRE( FILE = cl_asmbkg, EXIST = llok ) |
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99 | ! |
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100 | IF( .NOT. llok ) THEN |
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101 | IF(lwp) WRITE(numout,*) ' Setting up assimilation background file '// TRIM( c_asmbkg ) |
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102 | ! |
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103 | ! ! Define the output file |
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104 | CALL iom_open( c_asmbkg, inum, ldwrt = .TRUE., kiolib = jprstlib) |
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105 | ! |
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106 | IF( nitbkg_r == nit000 - 1 ) THEN ! Treat special case when nitbkg = 0 |
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107 | zdate = REAL( ndastp ) |
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108 | #if defined key_zdftke |
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109 | ! lk_zdftke=T : Read turbulent kinetic energy ( en ) |
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110 | IF(lwp) WRITE(numout,*) ' Reading TKE (en) from restart...' |
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111 | CALL tke_rst( nit000, 'READ' ) ! lk_zdftke=T : Read turbulent kinetic energy ( en ) |
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112 | |
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113 | #endif |
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114 | ELSE |
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115 | zdate = REAL( ndastp ) |
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116 | ENDIF |
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117 | ! |
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118 | ! ! Write the information |
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119 | CALL iom_rstput( kt, nitbkg_r, inum, 'rdastp' , zdate ) |
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120 | CALL iom_rstput( kt, nitbkg_r, inum, 'un' , un ) |
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121 | CALL iom_rstput( kt, nitbkg_r, inum, 'vn' , vn ) |
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122 | CALL iom_rstput( kt, nitbkg_r, inum, 'tn' , tn ) |
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123 | CALL iom_rstput( kt, nitbkg_r, inum, 'sn' , sn ) |
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124 | CALL iom_rstput( kt, nitbkg_r, inum, 'sshn' , sshn ) |
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125 | #if defined key_zdftke |
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126 | CALL iom_rstput( kt, nitbkg_r, inum, 'en' , en ) |
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127 | #endif |
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128 | CALL iom_rstput( kt, nitbkg_r, inum, 'gcx' , gcx ) |
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129 | ! |
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130 | CALL iom_close( inum ) |
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131 | ENDIF |
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132 | ! |
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133 | ENDIF |
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134 | |
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135 | ! !------------------------------------------- |
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136 | IF( kt == nitdin_r ) THEN ! Write out background at time step nitdin_r |
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137 | ! !-----------------------------------======== |
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138 | ! |
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139 | WRITE(cl_asmdin, FMT='(A,".nc")' ) TRIM( c_asmdin ) |
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140 | cl_asmdin = TRIM( cl_asmdin ) |
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141 | INQUIRE( FILE = cl_asmdin, EXIST = llok ) |
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142 | ! |
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143 | IF( .NOT. llok ) THEN |
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144 | IF(lwp) WRITE(numout,*) ' Setting up assimilation background file '// TRIM( c_asmdin ) |
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145 | ! |
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146 | ! ! Define the output file |
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147 | CALL iom_open( c_asmdin, inum, ldwrt = .TRUE., kiolib = jprstlib) |
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148 | ! |
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149 | IF( nitdin_r == nit000 - 1 ) THEN ! Treat special case when nitbkg = 0 |
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150 | |
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151 | zdate = REAL( ndastp ) |
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152 | ELSE |
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153 | zdate = REAL( ndastp ) |
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154 | ENDIF |
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155 | ! |
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156 | ! ! Write the information |
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157 | CALL iom_rstput( kt, nitdin_r, inum, 'rdastp' , zdate ) |
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158 | CALL iom_rstput( kt, nitdin_r, inum, 'un' , un ) |
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159 | CALL iom_rstput( kt, nitdin_r, inum, 'vn' , vn ) |
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160 | CALL iom_rstput( kt, nitdin_r, inum, 'tn' , tn ) |
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161 | CALL iom_rstput( kt, nitdin_r, inum, 'sn' , sn ) |
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162 | CALL iom_rstput( kt, nitdin_r, inum, 'sshn' , sshn ) |
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163 | ! |
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164 | CALL iom_close( inum ) |
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165 | ENDIF |
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166 | ! |
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167 | ENDIF |
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168 | ! |
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169 | END SUBROUTINE asm_bkg_wri |
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170 | |
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171 | |
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172 | SUBROUTINE asm_trj_wri( kt ) |
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173 | !!----------------------------------------------------------------------- |
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174 | !! *** ROUTINE asm_trj_wri *** |
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175 | !! |
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176 | !! ** Purpose : Write to file the model state trajectory for use with 4D-Var. |
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177 | !!----------------------------------------------------------------------- |
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178 | INTEGER, INTENT( IN ) :: kt ! Current time-step |
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179 | ! |
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180 | INTEGER :: inum ! File unit number |
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181 | INTEGER :: it |
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182 | CHARACTER (LEN=50) :: cl_asmtrj |
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183 | REAL(wp) :: zdate ! Date |
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184 | !!----------------------------------------------------------------------- |
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185 | |
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186 | !------------------------------------------------------------------------ |
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187 | ! Write a single file for each trajectory time step |
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188 | !------------------------------------------------------------------------ |
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189 | IF( ( MOD( kt - nit000 + 1, nittrjfrq ) == 0 ) .OR. ( kt == nitend ) ) THEN |
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190 | |
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191 | IF( kt == nit000 - 1 ) THEN ! Treat special case when kt = nit000-1 |
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192 | ! |
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193 | #if defined key_zdftke |
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194 | IF(lwp) WRITE(numout,*) ' Computing zdf_tke coeff. form restart...' |
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195 | ! Compute the vertical eddy viscosity and diffusivity coefficients |
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196 | CALL zdf_tke( nit000 ) |
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197 | #endif |
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198 | #if defined key_zdfddm |
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199 | IF(lwp) WRITE(numout,*) ' Computing zdf_ddm coeff. from restart...' |
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200 | ! Compute the vertical eddy viscosity and diffusivity coefficients (salt effect) |
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201 | CALL zdf_ddm( nit000 ) |
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202 | #endif |
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203 | IF(lwp) WRITE(numout,*) ' Computing zdf_mxl coeff. from restart...' |
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204 | ! Compute the turbocline depth and the mixed layer depth |
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205 | CALL zdf_mxl( nit000 ) |
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206 | #if defined key_ldfslp |
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207 | IF(lwp) WRITE(numout,*) ' Compute the slopes of neutral surface...' |
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208 | CALL bn2( tsb, rn2 ) |
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209 | CALL ldf_slp( nit000, rhd, rn2 ) |
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210 | #endif |
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211 | #if defined key_traldf_c2d |
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212 | IF(lwp) WRITE(numout,*) ' Computing ldf_eiv coeff. from restart...' |
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213 | ! Compute eddy induced velocity coefficient |
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214 | IF( lk_traldf_eiv ) CALL ldf_eiv( nit000 ) |
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215 | #endif |
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216 | ENDIF |
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217 | ! |
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218 | it = kt - nit000 + 1 |
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219 | ! |
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220 | ! ! Define the output file |
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221 | WRITE(cl_asmtrj, FMT='(A,A,I5.5)' ) TRIM( c_asmtrj ), '_', it |
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222 | cl_asmtrj = TRIM( cl_asmtrj ) |
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223 | CALL iom_open( cl_asmtrj, inum, ldwrt = .TRUE., kiolib = jprstlib) |
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224 | ! |
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225 | ! ! Output trajectory fields |
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226 | CALL iom_rstput( it, it, inum, 'emp' , emp ) |
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227 | CALL iom_rstput( it, it, inum, 'emps' , emps ) |
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228 | CALL iom_rstput( it, it, inum, 'un' , un ) |
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229 | CALL iom_rstput( it, it, inum, 'vn' , vn ) |
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230 | CALL iom_rstput( it, it, inum, 'tn' , tn ) |
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231 | CALL iom_rstput( it, it, inum, 'sn' , sn ) |
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232 | CALL iom_rstput( it, it, inum, 'avmu' , avmu ) |
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233 | CALL iom_rstput( it, it, inum, 'avmv' , avmv ) |
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234 | CALL iom_rstput( it, it, inum, 'avt' , avt ) |
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235 | #if defined key_ldfslp |
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236 | CALL iom_rstput( it, it, inum, 'uslp' , uslp ) |
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237 | CALL iom_rstput( it, it, inum, 'vslp' , vslp ) |
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238 | CALL iom_rstput( it, it, inum, 'wslpi' , wslpi ) |
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239 | CALL iom_rstput( it, it, inum, 'wslpj' , wslpj ) |
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240 | #endif |
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241 | #if defined key_zdfddm |
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242 | CALL iom_rstput( it, it, inum, 'avs' , avs ) |
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243 | #endif |
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244 | CALL iom_rstput( it, it, inum, 'ta' , ta ) |
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245 | CALL iom_rstput( it, it, inum, 'sa' , sa ) |
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246 | CALL iom_rstput( it, it, inum, 'tb' , tb ) |
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247 | CALL iom_rstput( it, it, inum, 'sb' , sb ) |
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248 | #if defined key_tradmp |
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249 | CALL iom_rstput( it, it, inum, 'strdmp', strdmp ) |
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250 | CALL iom_rstput( it, it, inum, 'hmlp' , hmlp ) |
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251 | #endif |
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252 | CALL iom_rstput( it, it, inum, 'aeiu' , aeiu ) |
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253 | CALL iom_rstput( it, it, inum, 'aeiv' , aeiv ) |
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254 | CALL iom_rstput( it, it, inum, 'aeiw' , aeiw ) |
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255 | ! |
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256 | CALL iom_close( inum ) |
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257 | ENDIF |
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258 | ! |
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259 | END SUBROUTINE asm_trj_wri |
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260 | |
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261 | !!====================================================================== |
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262 | END MODULE asmtrj |
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