1 | !!---------------------------------------------------------------------- |
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2 | !! *** ldftra_c1d.h90 *** |
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3 | !!---------------------------------------------------------------------- |
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4 | |
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5 | !!---------------------------------------------------------------------- |
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6 | !! OPA 9.0 , LODYC-IPSL (2003) |
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7 | !!---------------------------------------------------------------------- |
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8 | |
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9 | SUBROUTINE ldf_tra_c1d( ld_print ) |
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10 | !!---------------------------------------------------------------------- |
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11 | !! *** ROUTINE ldftra_c1d *** |
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12 | !! |
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13 | !! ** Purpose : 1D eddy diffusivity coefficient |
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14 | !! |
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15 | !! ** Method : 1D eddy diffusivity coefficients ( depth ) |
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16 | !! biharmonic operator : ahtt = defined at T-level |
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17 | !! ahtu,ahtv,ahtw never used |
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18 | !! |
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19 | !! harmonic operator : ahtt never used |
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20 | !! -1- iso-model level: ahtu = ahtv defined at T-level |
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21 | !! ahtw never used |
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22 | !! -2- isopycnal or : ahtu = ahtv defined at T-level |
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23 | !! geopotential ahtw defined at w-level |
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24 | !! |
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25 | !! eddy induced velocity |
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26 | !! always harmonic : aeiu = aeiv defined at T-level |
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27 | !! aeiw defined at w-level |
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28 | !! |
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29 | !!---------------------------------------------------------------------- |
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30 | !! * Arguments |
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31 | LOGICAL, INTENT (in) :: ld_print ! If true, print arrays in numout |
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32 | |
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33 | !! * Local variables |
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34 | INTEGER :: jk ! dummy loop indices |
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35 | REAL(wp) :: & |
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36 | zkah, zahr, za00 , za01, & ! temporary scalars |
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37 | zahf, zahs, zahtf, zahts |
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38 | !!---------------------------------------------------------------------- |
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39 | |
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40 | IF( lk_traldf_eiv ) THEN |
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41 | IF(lwp) WRITE(numout,*) |
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42 | IF(lwp) WRITE(numout,*) ' inildf : 1D eddy diffusivity and eddy induced velocity coefficients' |
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43 | IF(lwp) WRITE(numout,*) ' ~~~~~~ -- |
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44 | IF(lwp) WRITE(numout,*) |
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45 | ELSE |
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46 | IF(lwp) WRITE(numout,*) |
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47 | IF(lwp) WRITE(numout,*) ' inildf : 1D eddy diffusivity coefficient ' |
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48 | IF(lwp) WRITE(numout,*) ' ~~~~~~ -- ' |
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49 | IF(lwp) WRITE(numout,*) |
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50 | ENDIF |
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51 | |
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52 | ! initialization of the profile |
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53 | |
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54 | ! ahts, ahtf: surface and bottom values |
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55 | zahts = aht0 |
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56 | zahtf = aht0/4. |
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57 | ! zkah, zahr: depth of the inflection pt and width of inflection |
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58 | zkah = -300. |
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59 | zahr = 300. |
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60 | ! computation coefficients |
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61 | za00 = TANH( ( -fsdept(1,1,1 ) - zkah ) / zahr ) |
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62 | za01 = TANH( ( -fsdept(1,1,jpk) - zkah ) / zahr ) |
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63 | zahf = ( zahts-zahtf ) / ( za00 - za01 ) |
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64 | zahs = zahts - zahf * za00 |
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65 | |
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66 | ! biharmonic operator : (T-point) |
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67 | ! ==================== |
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68 | |
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69 | ! set ahtt at T-level |
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70 | DO jk = 1, jpk |
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71 | ahtt(jk) = zahs + zahf * TANH( (-fsdept(1,1,jk)-zkah) / zahr ) |
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72 | END DO |
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73 | |
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74 | ! control print |
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75 | IF(lwp .AND. ld_print ) THEN |
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76 | WRITE(numout,*) |
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77 | WRITE(numout,*) ' aht profile at T-level : ' |
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78 | WRITE(numout,*) |
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79 | WRITE(numout,*) ' level aht depth t-level ' ) |
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80 | DO jk = 1, jpk |
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81 | WRITE(numout,'(i6,2f12.4)') jk, ahtt(jk), fsdept(1,1,jk) |
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82 | END DO |
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83 | ENDIF |
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84 | |
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85 | ! harmonic operator : (U-, V-, W-points) |
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86 | ! ================== |
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87 | |
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88 | ! set ahtu = ahtv at T-level, and ahtw at w-level |
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89 | DO jk = 1, jpk |
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90 | ahtu(jk) = zahs + zahf * TANH( ( -fsdept(1,1,jk) - zkah ) / zahr ) |
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91 | ahtv(jk) = ahtu(jk) |
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92 | ahtw(jk) = zahs + zahf * TANH( ( -fsdepw(1,1,jk) - zkah ) / zahr ) |
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93 | END DO |
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94 | |
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95 | ! control print |
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96 | IF(lwp .AND. ld_print ) THEN |
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97 | IF(lwp) WRITE(numout,*) |
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98 | IF(lwp) WRITE(numout,*) ' aht profile at T-level : ' |
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99 | IF(lwp) WRITE(numout,*) |
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100 | IF(lwp) WRITE(numout,*) ' level aht depth t-level ' |
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101 | DO jk = 1, jpk |
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102 | IF(lwp) WRITE(numout,"(i6,2f12.4)") jk, ahtu(jk), fsdept(1,1,jk) |
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103 | END DO |
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104 | IF(lwp) WRITE(numout,*) |
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105 | IF(lwp) WRITE(numout,*) ' aht profile at W-level : ' |
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106 | IF(lwp) WRITE(numout,*) |
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107 | IF(lwp) WRITE(numout,*) ' jk aht depth w-level ' |
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108 | DO jk = 1, jpk |
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109 | IF(lwp)WRITE(numout,"(i6,2f12.4)") jk, ahtw(jk), fsdepw(1,1,jk) |
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110 | END DO |
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111 | ENDIF |
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112 | |
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113 | # if defined key_traldf_eiv |
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114 | ! set aeiu = aeiv and set aeiw (here same profile as on aht) |
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115 | aeiu(:) = ahtu(:) |
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116 | aeiv(:) = aeiu(:) |
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117 | aeiw(:) = ahtw(:) |
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118 | |
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119 | ! Control print |
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120 | IF(lwp .AND. ld_print ) THEN |
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121 | IF(lwp) WRITE(numout,*) |
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122 | IF(lwp) WRITE(numout,*) ' aeiv profile at T-level : ' |
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123 | IF(lwp) WRITE(numout,*) |
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124 | IF(lwp) WRITE(numout,*) ' jk aeiv depth t-level ' |
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125 | DO jk = 1, jpk |
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126 | IF(lwp) WRITE(numout,"(i6,2f12.4)") jk, aeiu(jk), fsdept(1,1,jk) |
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127 | END DO |
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128 | ENDIF |
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129 | #endif |
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130 | |
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131 | END SUBROUTINE ldf_tra_c1d |
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