1 | !!---------------------------------------------------------------------- |
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2 | !! *** ldfdyn_c1d.h90 *** |
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3 | !!---------------------------------------------------------------------- |
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4 | |
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5 | !!---------------------------------------------------------------------- |
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6 | !! NEMO/OPA 3.3 , NEMO Consortium (2010) |
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7 | !! $Id$ |
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8 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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9 | !!---------------------------------------------------------------------- |
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10 | |
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11 | SUBROUTINE ldf_dyn_c1d( ld_print ) |
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12 | !!---------------------------------------------------------------------- |
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13 | !! *** ROUTINE ldf_dyn_c1d *** |
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14 | !! |
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15 | !! ** Purpose : initializations of the horizontal ocean physics |
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16 | !! |
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17 | !! ** Method : 1D eddy viscosity coefficients ( depth ) |
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18 | !! ahm3, ahm4 never used |
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19 | !! harmonic operator : ahm1 defined at T-level |
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20 | !! biharmonic operator : ahm2 defined at T-level |
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21 | !! isopycnal or geopotential harmonic operator |
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22 | !! : ahm1 defined at T-level |
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23 | !! : ahm2 defined at w-level |
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24 | !! |
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25 | !!---------------------------------------------------------------------- |
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26 | LOGICAL, INTENT(in) :: ld_print ! If true, output arrays on numout |
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27 | ! |
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28 | INTEGER :: jk ! dummy loop indice |
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29 | REAL(wp) :: zdam, zwam, zm00, zm01, zmhf, zmhs |
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30 | REAL(wp) :: zdam2, zwam2, zm200, zm201, zmh2f, zmh2s |
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31 | REAL(wp) :: zahmf, zahms |
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32 | !!---------------------------------------------------------------------- |
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33 | |
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34 | IF(lwp) WRITE(numout,*) |
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35 | IF(lwp) WRITE(numout,*) 'inildf: 1D eddy viscosity coefficient' |
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36 | IF(lwp) WRITE(numout,*) '~~~~~~ --' |
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37 | |
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38 | ! Set ahm1 for laplacian (always at t-level) |
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39 | ! ============= |
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40 | ! (USER: modify ahm1 following your desiderata) |
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41 | |
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42 | ! initialization of the profile |
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43 | ! ahms, ahmf: surface and bottom values |
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44 | zahms = ahm0 |
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45 | zahmf = ahm0/4. |
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46 | ! zdam, zwam: depth of the inflection pt and width of inflection |
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47 | zdam = -300. |
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48 | zwam = 300. |
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49 | ! computation coefficients |
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50 | zm00 = TANH( (0-zdam)/zwam ) |
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51 | zm01 = TANH( (-fsdept(1,1,jpk)-zdam)/zwam ) |
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52 | zmhf = (zahms-zahmf)/(zm00-zm01) |
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53 | zmhs = zahms-zmhf * zm00 |
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54 | |
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55 | ! Set ahm2 for bilaplacian (always at t-level) |
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56 | ! ============= |
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57 | ! (USER: modify ahm2 following your desiderata) |
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58 | |
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59 | ! initialization of the profile |
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60 | ! ahms, ahmf: surface and bottom values |
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61 | zahm2s = ahm0_blp |
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62 | zahm2f = ahm0_blp/4. |
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63 | ! zdam, zwam: depth of the inflection pt and width of inflection |
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64 | zdam2 = -300. |
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65 | zwam2 = 300. |
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66 | ! computation coefficients |
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67 | zm200 = TANH( (0-zdam2)/zwam2 ) |
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68 | zm201 = TANH( (-fsdept(1,1,jpk)-zdam2)/zwam2 ) |
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69 | zmh2f = (zahm2s-zahm2f)/(zm200-zm201) |
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70 | zmh2s = zahm2s-zmh2f * zm00 |
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71 | |
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72 | |
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73 | ! set ahm1 and ahm2 at T-level |
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74 | DO jk = 1, jpk |
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75 | ahm1(jk) = zmhs + zmhf * TANH( (-fsdept(1,1,jk)-zdam ) / zwam ) |
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76 | ahm2(jk) = zmh2s + zmh2f * TANH( (-fsdept(1,1,jk)-zdam2) / zwam2 ) |
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77 | END DO |
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78 | |
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79 | ! Control print |
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80 | IF(lwp .AND. ld_print ) THEN |
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81 | WRITE(numout,*) |
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82 | WRITE(numout,*) ' ahm profile (laplacian): ' |
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83 | WRITE(numout,*) |
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84 | WRITE(numout,9100) |
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85 | DO jk = 1, jpk |
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86 | WRITE(numout,9110) jk, ahm1(jk), fsdept(1,1,jk) |
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87 | END DO |
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88 | WRITE(numout,*) |
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89 | WRITE(numout,*) ' ahm profile (bilaplacian): ' |
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90 | WRITE(numout,*) |
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91 | WRITE(numout,9100) |
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92 | DO jk = 1, jpk |
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93 | WRITE(numout,9110) jk, ahm2(jk), fsdept(1,1,jk) |
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94 | END DO |
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95 | ENDIF |
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96 | 9100 FORMAT(' jk ahm ',' depth t-level ' ) |
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97 | 9110 FORMAT(i6,2f12.4,3x,2f12.4) |
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98 | |
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99 | |
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100 | ! Set ahm3=ahm4 (always defined at w-level) |
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101 | ! ============= |
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102 | |
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103 | ! define ahm3 from the same vertical profile used for ahm4 |
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104 | ! (always defined at w-level) |
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105 | ! (USER: modify ahm1 following your desiderata) |
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106 | |
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107 | DO jk = 1, jpk |
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108 | ahm3(jk) = zmhs + zmhf * TANH( (-fsdepw(1,1,jk)-zdam) / zwam ) |
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109 | ahm4(jk) = ahm3(jk) |
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110 | END DO |
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111 | |
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112 | ! Control print |
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113 | IF(lwp .AND. ld_print ) THEN |
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114 | WRITE(numout,*) |
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115 | WRITE(numout,*) ' ahm3=ahm4 profile : ' |
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116 | WRITE(numout,*) |
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117 | WRITE(numout,9120) |
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118 | DO jk = 1, jpk |
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119 | WRITE(numout,9110) jk, ahm3(jk), fsdepw(1,1,jk) |
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120 | END DO |
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121 | ENDIF |
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122 | 9120 FORMAT(' jk ahm ',' depth w-level ' ) |
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123 | ! |
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124 | END SUBROUTINE ldf_dyn_c1d |
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