1 | MODULE etat0_williamson_mod |
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2 | USE icosa |
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3 | PRIVATE |
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4 | REAL(rstd), PARAMETER :: h0=8.E3 |
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5 | REAL(rstd), PARAMETER :: R0=4 |
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6 | REAL(rstd), PARAMETER :: K0=7.848E-6 |
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7 | REAL(rstd), PARAMETER :: omega0=K0 |
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8 | |
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9 | PUBLIC etat0_williamson, etat0_williamson_new |
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10 | |
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11 | CONTAINS |
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12 | |
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13 | |
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14 | SUBROUTINE etat0_williamson(f_h,f_u) |
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15 | USE icosa |
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16 | IMPLICIT NONE |
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17 | TYPE(t_field),POINTER :: f_h(:) |
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18 | TYPE(t_field),POINTER :: f_u(:) |
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19 | |
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20 | REAL(rstd),POINTER :: h(:) |
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21 | REAL(rstd),POINTER :: u(:) |
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22 | INTEGER :: ind |
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23 | |
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24 | DO ind=1,ndomain |
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25 | CALL swap_dimensions(ind) |
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26 | CALL swap_geometry(ind) |
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27 | h=f_h(ind) |
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28 | u=f_u(ind) |
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29 | CALL compute_etat0_williamson(h, u) |
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30 | ENDDO |
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31 | |
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32 | END SUBROUTINE etat0_williamson |
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33 | |
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34 | SUBROUTINE etat0_williamson_new(f_phis,f_mass,f_theta_rhodz,f_u, f_q) |
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35 | USE icosa |
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36 | USE mpipara, ONLY : is_mpi_root |
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37 | USE disvert_mod, ONLY : caldyn_eta, eta_lag |
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38 | |
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39 | IMPLICIT NONE |
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40 | TYPE(t_field),POINTER :: f_phis(:) |
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41 | TYPE(t_field),POINTER :: f_mass(:) |
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42 | TYPE(t_field),POINTER :: f_theta_rhodz(:) |
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43 | TYPE(t_field),POINTER :: f_u(:) |
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44 | TYPE(t_field),POINTER :: f_q(:) |
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45 | |
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46 | REAL(rstd),POINTER :: phis(:) |
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47 | REAL(rstd),POINTER :: h(:,:) |
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48 | REAL(rstd),POINTER :: theta_rhodz(:,:) |
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49 | REAL(rstd),POINTER :: u(:,:) |
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50 | INTEGER :: ind |
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51 | |
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52 | IF(caldyn_eta /= eta_lag) THEN |
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53 | IF(is_mpi_root) PRINT *, 'etat0_type=williamson91.5 (Williamson,1991) must be used with caldyn_eta=eta_lag' |
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54 | STOP |
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55 | END IF |
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56 | |
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57 | IF(llm>1) THEN |
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58 | IF(is_mpi_root) PRINT *, 'etat0_type=williamson91.5 (Williamson,1991) must be used with llm=1 but llm =',llm |
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59 | STOP |
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60 | END IF |
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61 | |
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62 | DO ind=1,ndomain |
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63 | CALL swap_dimensions(ind) |
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64 | CALL swap_geometry(ind) |
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65 | h=f_mass(ind) |
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66 | u=f_u(ind) |
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67 | theta_rhodz=f_theta_rhodz(ind) |
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68 | phis=f_phis(ind) |
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69 | CALL compute_etat0_williamson(h(:,1), u(:,1)) |
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70 | phis(:)=0. |
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71 | theta_rhodz(:,:) = h(:,:) |
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72 | ENDDO |
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73 | |
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74 | END SUBROUTINE etat0_williamson_new |
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75 | |
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76 | SUBROUTINE compute_etat0_williamson(hi, ue) |
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77 | USE icosa |
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78 | IMPLICIT NONE |
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79 | REAL(rstd),INTENT(OUT) :: hi(iim*jjm) |
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80 | REAL(rstd),INTENT(OUT) :: ue(3*iim*jjm) |
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81 | REAL(rstd) :: lon, lat |
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82 | REAL(rstd) :: nx(3),n_norm,Velocity(3) |
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83 | REAL(rstd) :: A,B,C |
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84 | REAL(rstd) :: v1(3),v2(3),ny(3) |
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85 | REAL(rstd) :: de_min |
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86 | |
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87 | INTEGER :: i,j,n |
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88 | |
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89 | |
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90 | DO j=jj_begin-1,jj_end+1 |
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91 | DO i=ii_begin-1,ii_end+1 |
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92 | n=(j-1)*iim+i |
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93 | CALL xyz2lonlat(xyz_i(n,:),lon,lat) |
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94 | A= 0.5*omega0*(2*omega+omega0)*cos(lat)**2 & |
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95 | + 0.25*K0**2*cos(lat)**(2*R0)*((R0+1)*cos(lat)**2+(2*R0**2-R0-2)-2*R0**2/cos(lat)**2) |
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96 | B=2*(omega+omega0)*K0/((R0+1)*(R0+2))*cos(lat)**R0*((R0**2+2*R0+2)-(R0+1)**2*cos(lat)**2) |
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97 | C=0.25*K0**2*cos(lat)**(2*R0)*((R0+1)*cos(lat)**2-(R0+2)) |
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98 | |
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99 | hi(n)=(g*h0+radius**2*A+radius**2*B*cos(R0*lon)+radius**2*C*cos(2*R0*lon))/g |
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100 | |
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101 | |
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102 | CALL compute_velocity(xyz_e(n+u_right,:),velocity) |
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103 | CALL cross_product2(xyz_v(n+z_rdown,:),xyz_v(n+z_rup,:),nx) |
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104 | |
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105 | ue(n+u_right)=1e-10 |
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106 | n_norm=sqrt(sum(nx(:)**2)) |
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107 | IF (n_norm>1e-30) THEN |
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108 | nx=-nx/n_norm*ne(n,right) |
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109 | ue(n+u_right)=sum(nx(:)*velocity(:)) |
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110 | IF (ABS(ue(n+u_right))<1e-100) PRINT *,"ue(n+u_right) ==0",i,j,velocity(:) |
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111 | ENDIF |
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112 | |
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113 | |
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114 | |
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115 | CALL compute_velocity(xyz_e(n+u_lup,:),velocity) |
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116 | CALL cross_product2(xyz_v(n+z_up,:),xyz_v(n+z_lup,:),nx) |
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117 | |
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118 | ue(n+u_lup)=1e-10 |
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119 | n_norm=sqrt(sum(nx(:)**2)) |
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120 | IF (n_norm>1e-30) THEN |
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121 | nx=-nx/n_norm*ne(n,lup) |
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122 | ue(n+u_lup)=sum(nx(:)*velocity(:)) |
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123 | IF (ABS(ue(n+u_lup))<1e-100) PRINT *,"ue(n+u_lup) ==0",i,j,velocity(:) |
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124 | ENDIF |
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125 | |
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126 | |
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127 | CALL compute_velocity(xyz_e(n+u_ldown,:),velocity) |
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128 | CALL cross_product2(xyz_v(n+z_ldown,:),xyz_v(n+z_down,:),nx) |
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129 | |
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130 | ue(n+u_ldown)=1e-10 |
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131 | n_norm=sqrt(sum(nx(:)**2)) |
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132 | IF (n_norm>1e-30) THEN |
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133 | nx=-nx/n_norm*ne(n,ldown) |
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134 | ue(n+u_ldown)=sum(nx(:)*velocity(:)) |
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135 | IF (ABS(ue(n+u_ldown))<1e-100) PRINT *,"ue(n+u_ldown) ==0",i,j |
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136 | ENDIF |
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137 | |
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138 | |
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139 | ENDDO |
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140 | ENDDO |
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141 | |
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142 | CONTAINS |
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143 | |
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144 | SUBROUTINE compute_velocity(x,velocity) |
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145 | IMPLICIT NONE |
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146 | REAL(rstd),INTENT(IN) :: x(3) |
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147 | REAL(rstd),INTENT(OUT) :: velocity(3) |
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148 | REAL(rstd) :: e_lat(3), e_lon(3) |
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149 | REAL(rstd) :: lon,lat |
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150 | REAL(rstd) :: u,v |
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151 | |
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152 | CALL xyz2lonlat(x/radius,lon,lat) |
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153 | e_lat(1) = -cos(lon)*sin(lat) |
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154 | e_lat(2) = -sin(lon)*sin(lat) |
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155 | e_lat(3) = cos(lat) |
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156 | |
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157 | e_lon(1) = -sin(lon) |
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158 | e_lon(2) = cos(lon) |
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159 | e_lon(3) = 0 |
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160 | |
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161 | u=radius*omega0*cos(lat)+radius*K0*cos(lat)**(R0-1)*(R0*sin(lat)**2-cos(lat)**2)*cos(R0*lon) |
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162 | v=-radius*K0*R0*cos(lat)**(R0-1)*sin(lat)*sin(R0*lon) |
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163 | |
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164 | Velocity=(u*e_lon+v*e_lat+1e-50) |
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165 | |
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166 | END SUBROUTINE compute_velocity |
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167 | |
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168 | END SUBROUTINE compute_etat0_williamson |
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169 | |
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170 | END MODULE etat0_williamson_mod |
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