1 | MODULE traisf |
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2 | !!============================================================================== |
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3 | !! *** MODULE traisf *** |
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4 | !! Ocean active tracers: ice shelf boundary condition |
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5 | !!============================================================================== |
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6 | !! History : 4.0 ! 2019-09 (P. Mathiot) original file |
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7 | !!---------------------------------------------------------------------- |
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8 | |
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9 | !!---------------------------------------------------------------------- |
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10 | !! tra_isf : update the tracer trend at ocean surface |
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11 | !!---------------------------------------------------------------------- |
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12 | USE oce ! ocean dynamics and active tracers |
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13 | USE dom_oce ! ocean space domain variables |
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14 | USE phycst ! physical constant |
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15 | USE eosbn2 ! Equation Of State |
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16 | USE isf ! Ice shelf variable |
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17 | USE isfutils ! |
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18 | USE iscplini ! Ice sheet coupling |
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19 | ! |
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20 | USE in_out_manager ! I/O manager |
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21 | USE iom ! xIOS server |
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22 | USE timing ! Timing |
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23 | |
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24 | IMPLICIT NONE |
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25 | PRIVATE |
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26 | |
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27 | PUBLIC tra_isf ! routine called by step.F90 |
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28 | |
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29 | !! * Substitutions |
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30 | # include "vectopt_loop_substitute.h90" |
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31 | !!---------------------------------------------------------------------- |
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32 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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33 | !! $Id: trasbc.F90 10499 2019-01-10 15:12:24Z deazer $ |
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34 | !! Software governed by the CeCILL license (see ./LICENSE) |
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35 | !!---------------------------------------------------------------------- |
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36 | CONTAINS |
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37 | |
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38 | SUBROUTINE tra_isf ( kt ) |
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39 | !!---------------------------------------------------------------------- |
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40 | !! *** ROUTINE tra_isf *** |
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41 | !! |
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42 | !! ** Purpose : Compute the temperature trend due to the ice shelf melting (qhoce + qhc) |
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43 | !! |
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44 | !! ** Action : - update tsa for cav, par and cpl case |
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45 | !!---------------------------------------------------------------------- |
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46 | INTEGER, INTENT(in) :: kt ! ocean time-step index |
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47 | !!---------------------------------------------------------------------- |
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48 | ! |
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49 | IF( ln_timing ) CALL timing_start('tra_sbc') |
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50 | ! |
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51 | ! cavity case |
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52 | IF ( ln_isfcav_mlt ) CALL tra_isf_mlt(misfkt_cav, misfkb_cav, rhisf_tbl_cav, rfrac_tbl_cav, risf_cav_tsc, risf_cav_tsc_b, tsa) |
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53 | ! |
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54 | ! parametrisation case |
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55 | IF ( ln_isfpar_mlt ) CALL tra_isf_mlt(misfkt_par, misfkb_par, rhisf_tbl_par, rfrac_tbl_par, risf_par_tsc, risf_par_tsc_b, tsa) |
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56 | ! |
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57 | ! ice sheet coupling case |
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58 | !CALL tra_isf_cpl() |
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59 | ! |
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60 | IF( ln_timing ) CALL timing_stop('tra_isf') |
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61 | ! |
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62 | END SUBROUTINE tra_isf |
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63 | ! |
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64 | SUBROUTINE tra_isf_mlt(ktop, kbot, phtbl, pfrac, ptsc, ptsc_b, pts) |
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65 | !!---------------------------------------------------------------------- |
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66 | !! *** ROUTINE tra_isf_mlt *** |
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67 | !! |
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68 | !! *** Purpose : Compute the temperature trend due to the ice shelf melting (qhoce + qhc) for cav or par case |
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69 | !! |
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70 | !! *** Action :: Update tsa with the surface boundary condition trend |
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71 | !! |
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72 | !!---------------------------------------------------------------------- |
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73 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts), INTENT(inout) :: pts |
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74 | !!---------------------------------------------------------------------- |
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75 | INTEGER , DIMENSION(jpi,jpj) , INTENT(in ) :: ktop , kbot |
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76 | REAL(wp), DIMENSION(jpi,jpj) , INTENT(in ) :: phtbl, pfrac |
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77 | REAL(wp), DIMENSION(jpi,jpj,jpts), INTENT(in ) :: ptsc , ptsc_b |
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78 | REAL(wp), DIMENSION(jpi,jpj) :: ztc |
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79 | !!---------------------------------------------------------------------- |
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80 | INTEGER :: ji,jj,jk ! loop index |
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81 | INTEGER :: ikt, ikb ! top and bottom level of the tbl |
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82 | REAL(wp), DIMENSION(jpi,jpj) :: ztc ! total ice shelf tracer trend |
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83 | !!---------------------------------------------------------------------- |
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84 | ! |
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85 | ! compute 2d total trend due to isf |
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86 | ztc(:,:) = 0.5_wp * ( ptsc(:,:,jp_tem) + ptsc_b(:,:,jp_tem) ) / phtbl(:,:) |
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87 | ! |
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88 | ! update tsa |
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89 | DO jj = 1,jpj |
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90 | DO ji = 1,jpi |
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91 | ! |
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92 | ikt = ktop(ji,jj) |
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93 | ikb = kbot(ji,jj) |
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94 | ! |
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95 | ! level fully include in the ice shelf boundary layer |
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96 | ! sign - because fwf sign of evapo (rnf sign of precip) |
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97 | DO jk = ikt, ikb - 1 |
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98 | pts(ji,jj,jk,jp_tem) = pts(ji,jj,jk,jp_tem) + ztc(ji,jj) |
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99 | END DO |
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100 | ! |
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101 | ! level partially include in ice shelf boundary layer |
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102 | pts(ji,jj,ikb,jp_tem) = pts(ji,jj,ikb,jp_tem) + ztc(ji,jj) * pfrac(ji,jj) |
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103 | ! |
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104 | END DO |
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105 | END DO |
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106 | ! |
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107 | END SUBROUTINE tra_isf_mlt |
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108 | ! |
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109 | !SUBROUTINE tra_isf_cpl |
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110 | ! |
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111 | ! !---------------------------------------- |
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112 | ! ! Ice Sheet coupling imbalance correction to have conservation |
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113 | ! !---------------------------------------- |
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114 | ! ! |
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115 | ! IF( ln_iscpl .AND. ln_iscpl_hsb) THEN ! input of heat and salt due to river runoff |
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116 | ! DO jk = 1,jpk |
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117 | ! DO jj = 2, jpj |
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118 | ! DO ji = fs_2, fs_jpim1 |
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119 | ! zdep = 1._wp / e3t_n(ji,jj,jk) |
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120 | ! tsa(ji,jj,jk,jp_tem) = tsa(ji,jj,jk,jp_tem) - htsc_iscpl(ji,jj,jk,jp_tem) * zdep |
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121 | ! tsa(ji,jj,jk,jp_sal) = tsa(ji,jj,jk,jp_sal) - htsc_iscpl(ji,jj,jk,jp_sal) * zdep |
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122 | ! END DO |
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123 | ! END DO |
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124 | ! END DO |
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125 | ! ENDIF |
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126 | ! ! |
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127 | ! END SUBROUTINE tra_isf_cpl |
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128 | ! |
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129 | END MODULE traisf |
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