1 | MODULE wzvmod |
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2 | !!============================================================================== |
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3 | !! *** MODULE wzvmod *** |
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4 | !! Ocean diagnostic variable : vertical velocity |
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5 | !!============================================================================== |
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6 | |
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7 | !!---------------------------------------------------------------------- |
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8 | !! wzv : Compute the vertical velocity |
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9 | !!---------------------------------------------------------------------- |
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10 | !! * Modules used |
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11 | USE oce ! ocean dynamics and tracers variables |
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12 | USE dom_oce ! ocean space and time domain variables |
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13 | USE in_out_manager ! I/O manager |
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14 | |
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15 | IMPLICIT NONE |
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16 | PRIVATE |
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17 | |
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18 | !! * Routine accessibility |
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19 | PUBLIC wzv ! routine called by step.F90 and inidtr.F90 |
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20 | |
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21 | !! * Substitutions |
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22 | # include "domzgr_substitute.h90" |
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23 | !!---------------------------------------------------------------------- |
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24 | |
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25 | CONTAINS |
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26 | |
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27 | #if defined key_autotasking |
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28 | !!---------------------------------------------------------------------- |
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29 | !! 'key_autotasking' j-k-i loop (j-slab) |
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30 | !!---------------------------------------------------------------------- |
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31 | |
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32 | SUBROUTINE wzv( kt ) |
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33 | !!---------------------------------------------------------------------- |
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34 | !! *** ROUTINE wzv *** |
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35 | !! |
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36 | !! ** Purpose : Compute the now vertical velocity after the array swap |
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37 | !! |
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38 | !! ** Method : Using the incompressibility hypothesis, the vertical |
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39 | !! velocity is computed by integrating the horizontal divergence |
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40 | !! from the bottom to the surface. |
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41 | !! The boundary conditions are w=0 at the bottom (no flux) and, |
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42 | !! in regid-lid case, w=0 at the sea surface. |
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43 | !! |
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44 | !! ** action : wn array : the now vertical velocity |
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45 | !! |
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46 | !! History : |
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47 | !! 5.0 ! 90-10 (C. Levy, G. Madec) Original code |
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48 | !! 7.0 ! 96-01 (G. Madec) Statement function for e3 |
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49 | !! 8.5 ! 02-07 (G. Madec) Free form, F90 |
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50 | !!---------------------------------------------------------------------- |
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51 | !! * Arguments |
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52 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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53 | |
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54 | !! * Local declarations |
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55 | INTEGER :: jj, jk ! dummy loop indices |
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56 | !!---------------------------------------------------------------------- |
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57 | !! OPA 9.0, LODYC-IPSL (2003) |
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58 | !!---------------------------------------------------------------------- |
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59 | |
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60 | IF( kt == nit000 ) THEN |
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61 | IF(lwp) WRITE(numout,*) |
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62 | IF(lwp) WRITE(numout,*) 'wzv : vertical velocity from continuity eq.' |
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63 | IF(lwp) WRITE(numout,*) '~~~~~~~ auto-tasking case : j-k-i loop ' |
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64 | |
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65 | ! bottom boundary condition: w=0 (set once for all) |
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66 | wn(:,:,jpk) = 0.e0 |
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67 | ENDIF |
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68 | |
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69 | ! ! =============== |
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70 | DO jj = 1, jpj ! Vertical slab |
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71 | ! ! =============== |
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72 | ! Computation from the bottom |
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73 | DO jk = jpkm1, 1, -1 |
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74 | wn(:,jj,jk) = wn(:,jj,jk+1) - fse3t(:,jj,jk) * hdivn(:,jj,jk) |
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75 | END DO |
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76 | ! ! =============== |
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77 | END DO ! End of slab |
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78 | ! ! =============== |
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79 | |
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80 | IF(l_ctl) THEN ! print mean trends (used for debugging) |
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81 | WRITE(numout,*) ' w**2 - : ', SUM( wn(2:nictl,2:njctl,1:jpkm1) * wn (2:nictl,2:njctl,1:jpkm1) ) |
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82 | ENDIF |
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83 | |
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84 | END SUBROUTINE wzv |
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85 | |
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86 | #else |
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87 | !!---------------------------------------------------------------------- |
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88 | !! Default option k-j-i loop |
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89 | !!---------------------------------------------------------------------- |
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90 | |
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91 | SUBROUTINE wzv( kt ) |
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92 | !!---------------------------------------------------------------------- |
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93 | !! *** ROUTINE wzv *** |
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94 | !! |
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95 | !! ** Purpose : Compute the now vertical velocity after the array swap |
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96 | !! |
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97 | !! ** Method : Using the incompressibility hypothesis, the vertical |
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98 | !! velocity is computed by integrating the horizontal divergence |
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99 | !! from the bottom to the surface. |
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100 | !! The boundary conditions are w=0 at the bottom (no flux) and, |
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101 | !! in regid-lid case, w=0 at the sea surface. |
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102 | !! |
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103 | !! ** action : wn array : the now vertical velocity |
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104 | !! |
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105 | !! History : |
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106 | !! 9.0 ! 02-07 (G. Madec) Vector optimization |
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107 | !!---------------------------------------------------------------------- |
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108 | !! * Arguments |
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109 | INTEGER, INTENT( in ) :: kt ! ocean time-step index |
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110 | |
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111 | !! * Local declarations |
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112 | INTEGER :: jk ! dummy loop indices |
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113 | !!---------------------------------------------------------------------- |
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114 | !! OPA 8.5, LODYC-IPSL (2002) |
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115 | !!---------------------------------------------------------------------- |
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116 | |
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117 | IF( kt == nit000 ) THEN |
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118 | IF(lwp) WRITE(numout,*) |
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119 | IF(lwp) WRITE(numout,*) 'wzv : vertical velocity from continuity eq.' |
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120 | IF(lwp) WRITE(numout,*) '~~~~~~~ ' |
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121 | |
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122 | ! bottom boundary condition: w=0 (set once for all) |
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123 | wn(:,:,jpk) = 0.e0 |
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124 | ENDIF |
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125 | |
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126 | ! Computation from the bottom |
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127 | DO jk = jpkm1, 1, -1 |
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128 | wn(:,:,jk) = wn(:,:,jk+1) - fse3t(:,:,jk) * hdivn(:,:,jk) |
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129 | END DO |
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130 | |
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131 | IF(l_ctl) THEN ! print mean trends (used for debugging) |
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132 | WRITE(numout,*) ' w**2 - : ', SUM( wn(2:nictl,2:njctl,1:jpkm1) * wn (2:nictl,2:njctl,1:jpkm1) ) |
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133 | ENDIF |
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134 | |
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135 | END SUBROUTINE wzv |
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136 | #endif |
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137 | |
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138 | !!====================================================================== |
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139 | END MODULE wzvmod |
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