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 | !! OPA 9.0 , LOCEAN-IPSL (2005) |
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7 | !! $Id$ |
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8 | !! This software is governed by the CeCILL licence see modipsl/doc/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 | !! biharmonic or harmonic operator : ahm1=ahm2 defined at T-level |
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20 | !! isopycnal or geopotential harmonic operator |
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21 | !! : ahm1 defined at T-level |
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22 | !! : ahm2 defined at w-level |
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23 | !! |
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24 | !!---------------------------------------------------------------------- |
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25 | !! * Arguments |
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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 | !! * Local variables |
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29 | REAL(wp) :: zdam, zwam, zm00, zm01, zmhf, zmhs |
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30 | REAL(wp) :: zahmf, zahms |
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31 | !!---------------------------------------------------------------------- |
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32 | |
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33 | IF(lwp) WRITE(numout,*) |
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34 | IF(lwp) WRITE(numout,*) 'inildf: 1D eddy viscosity coefficient' |
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35 | IF(lwp) WRITE(numout,*) '~~~~~~ --' |
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36 | IF(lwp) WRITE(numout,*) |
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37 | |
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38 | ! Set ahm1=ahm2 (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 ahm1=ahm2 at T-level |
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56 | DO jk = 1, jpk |
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57 | ahm1(jk) = zmhs + zmhf * TANH( (-fsdept(1,1,jk)-zdam) / zwam ) |
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58 | ahm2(jk) = ahm1(jk) |
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59 | END DO |
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60 | |
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61 | ! Control print |
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62 | IF(lwp .AND. ld_print ) THEN |
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63 | WRITE(numout,*) |
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64 | WRITE(numout,*) ' ahm profile : ' |
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65 | WRITE(numout,*) |
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66 | WRITE(numout,9100) |
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67 | DO jk = 1, jpk |
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68 | WRITE(numout,9110) jk, ahm1(jk), fsdept(1,1,jk) |
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69 | END DO |
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70 | ENDIF |
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71 | 9100 FORMAT(' jk ahm ',' depth t-level ' ) |
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72 | 9110 FORMAT(i6,2f12.4,3x,2f12.4) |
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73 | |
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74 | |
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75 | ! Set ahm3=ahm4 (always defined at w-level) |
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76 | ! ============= |
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77 | |
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78 | ! define ahm3 from the same vertical profile used for ahm4 |
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79 | ! (always defined at w-level) |
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80 | ! (USER: modify ahm1 following your desiderata) |
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81 | |
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82 | DO jk = 1, jpk |
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83 | ahm3(jk) = zmhs + zmhf * TANH( (-fsdepw(1,1,jk)-zdam) / zwam ) |
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84 | ahm4(jk) = ahm3(jk) |
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85 | END DO |
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86 | |
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87 | ! Control print |
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88 | IF(lwp .AND. ld_print ) THEN |
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89 | WRITE(numout,*) |
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90 | WRITE(numout,*) ' ahm3=ahm4 profile : ' |
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91 | WRITE(numout,*) |
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92 | WRITE(numout,9120) |
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93 | DO jk = 1, jpk |
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94 | WRITE(numout,9110) jk, ahm3(jk), fsdepw(1,1,jk) |
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95 | END DO |
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96 | ENDIF |
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97 | 9120 FORMAT(' jk ahm ',' depth w-level ' ) |
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98 | |
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99 | END SUBROUTINE ldf_dyn_c1d |
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