1 | C $Id$ |
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2 | CDIR$ LIST |
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3 | SUBROUTINE trcage(kt) |
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4 | CCC--------------------------------------------------------------------- |
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5 | CCC |
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6 | CCC ROUTINE trcage |
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7 | CCC ******************* |
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8 | CCC |
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9 | CCC PURPOSE : |
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10 | CCC --------- |
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11 | CCC Compute the source for the age tracer |
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12 | CCC |
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13 | CCC |
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14 | CC METHOD : |
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15 | CC ------- |
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16 | CC |
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17 | CC multitasked on vertical slab (jj-loop) |
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18 | CC surface concentration is restored to 0 with a |
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19 | CC time constant set to 7 days |
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20 | CC |
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21 | CC |
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22 | CC INPUT : |
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23 | CC ----- |
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24 | CC argument |
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25 | CC ktask : task identificator |
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26 | CC kt : time step |
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27 | CC COMMON |
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28 | CC /comcoo/ : orthogonal curvilinear coordinates |
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29 | CC and scale factors |
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30 | CC depths |
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31 | CC /comtsk/ : multitasking |
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32 | CC |
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33 | CC OUTPUT : |
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34 | CC ------ |
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35 | CC |
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36 | CC WORKSPACE : |
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37 | CC --------- |
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38 | CC COMMON |
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39 | CC |
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40 | CC EXTERNAL : no |
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41 | CC -------- |
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42 | CC |
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43 | CC REFERENCES : no |
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44 | CC ---------- |
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45 | CC |
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46 | CC MODIFICATIONS: |
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47 | CC -------------- |
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48 | CC original : 02-05 (K. Rodgers and O. Aumont) |
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49 | CC---------------------------------------------------------------------- |
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50 | |
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51 | USE oce_trc |
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52 | USE trp_trc |
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53 | USE sms |
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54 | IMPLICIT NONE |
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55 | |
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56 | CCC--------------------------------------------------------------------- |
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57 | CCC OPA8, LODYC (11/96) |
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58 | CCC--------------------------------------------------------------------- |
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59 | CC---------------------------------------------------------------------- |
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60 | CC local declarations |
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61 | CC ================== |
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62 | INTEGER kt |
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63 | |
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64 | #if defined key_passivetrc |
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65 | # if defined key_trc_age |
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66 | C |
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67 | INTEGER ji,jj,jk |
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68 | CC---------------------------------------------------------------------- |
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69 | |
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70 | CCC--------------------------------------------------------------------- |
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71 | CCC OPA8, LODYC (15/11/96) |
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72 | CCC--------------------------------------------------------------------- |
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73 | C |
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74 | C |
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75 | C 1. Restore surface concentrations to 0 for age concentration |
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76 | C and 1 for component concentration |
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77 | C ------------------------------------------------------------ |
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78 | C |
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79 | DO jj = 1,jpj |
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80 | DO ji = 1,jpi |
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81 | tra(ji,jj,1,2)=-trn(ji,jj,1,2)/(tauage1*rjjss) |
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82 | tra(ji,jj,1,1)=(1.-trn(ji,jj,1,1))/(tauage1*rjjss) |
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83 | END DO |
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84 | END DO |
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85 | C |
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86 | C 2. Increase sub-surface age concentrations so that the |
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87 | C concentration is increased by 1 after tauage years |
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88 | C -------------------------------------------------- |
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89 | C |
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90 | DO jk = 2,jpk |
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91 | DO jj = 1,jpj |
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92 | DO ji = 1,jpi |
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93 | tra(ji,jj,jk,2)=tra(ji,jj,jk,2)+trn(ji,jj,jk,1) |
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94 | & /(tauage2*raass) |
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95 | END DO |
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96 | END DO |
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97 | END DO |
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98 | C |
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99 | # else |
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100 | C |
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101 | C No optical model |
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102 | C |
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103 | # endif |
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104 | #else |
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105 | C |
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106 | C no passive tracers |
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107 | C |
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108 | #endif |
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109 | C |
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110 | RETURN |
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111 | END |
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