1 | MODULE usrdef_istate |
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2 | !!============================================================================== |
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3 | !! *** MODULE usrdef_istate *** |
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4 | !! |
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5 | !! === DOME configuration === |
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6 | !! |
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7 | !! User defined : set the initial state of a user configuration |
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8 | !!============================================================================== |
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9 | !! History : NEMO 4.x ! 2020-12 (J. Chanut) Original code |
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10 | !!---------------------------------------------------------------------- |
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11 | |
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12 | !!---------------------------------------------------------------------- |
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13 | !! usr_def_istate : initial state in Temperature and salinity |
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14 | !!---------------------------------------------------------------------- |
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15 | USE par_oce ! ocean space and time domain |
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16 | USE phycst ! physical constants |
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17 | USE eosbn2, ONLY: rn_a0 |
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18 | USE dom_oce |
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19 | ! |
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20 | USE in_out_manager ! I/O manager |
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21 | USE lib_mpp ! MPP library |
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22 | |
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23 | IMPLICIT NONE |
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24 | PRIVATE |
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25 | |
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26 | PUBLIC usr_def_istate ! called by istate.F90 |
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27 | PUBlIC usr_def_istate_ssh |
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28 | !!---------------------------------------------------------------------- |
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29 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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30 | !! $Id: usrdef_istate.F90 12489 2020-02-28 15:55:11Z davestorkey $ |
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31 | !! Software governed by the CeCILL license (see ./LICENSE) |
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32 | !!---------------------------------------------------------------------- |
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33 | !! * Substitutions |
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34 | # include "do_loop_substitute.h90" |
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35 | |
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36 | CONTAINS |
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37 | |
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38 | SUBROUTINE usr_def_istate( pdept, ptmask, pts, pu, pv ) |
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39 | !!---------------------------------------------------------------------- |
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40 | !! *** ROUTINE usr_def_istate *** |
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41 | !! |
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42 | !! ** Purpose : Initialization of the dynamics and tracers |
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43 | !! Here OVERFLOW configuration |
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44 | !! |
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45 | !! ** Method : - set temprature field |
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46 | !! - set salinity field |
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47 | !! |
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48 | !! ** Reference: Legg, S., Hallberg, R. W. and J. B. Girton, 2006: |
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49 | !! Comparison of entrainment in overflows simulated by z-coordinate, |
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50 | !! isopycnal and non-hydrostatic models. Ocean Modelling, 11, 69-97. |
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51 | !! |
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52 | !!---------------------------------------------------------------------- |
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53 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: pdept ! depth of t-point [m] |
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54 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: ptmask ! t-point ocean mask [m] |
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55 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts), INTENT( out) :: pts ! T & S fields [Celsius ; g/kg] |
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56 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT( out) :: pu ! i-component of the velocity [m/s] |
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57 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT( out) :: pv ! j-component of the velocity [m/s] |
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58 | ! |
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59 | INTEGER :: ji,jj,jk ! dummy loop indices |
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60 | REAL(wp) :: zdt, zn2, zrho1, zdb, zh, zstar, zxw, zro, zhe, zh0, zf |
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61 | REAL(wp) :: zri1, zri2, zri, ztd, ztu |
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62 | !!---------------------------------------------------------------------- |
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63 | ! |
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64 | IF(lwp) WRITE(numout,*) |
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65 | IF(lwp) WRITE(numout,*) 'usr_def_istate : DOME configuration, analytical definition of initial state' |
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66 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~ Ocean at rest, filled with a constant stratification ' |
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67 | IF(lwp) WRITE(numout,*) ' salinity is used as a passive tracer here, initially=0' |
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68 | IF(lwp) WRITE(numout,*) ' and set to 1 inside inlet' |
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69 | ! |
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70 | ! |
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71 | pu (:,:,:) = 0._wp ! ocean at rest |
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72 | pv (:,:,:) = 0._wp |
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73 | pts(:,:,:,:) = 0._wp |
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74 | ! |
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75 | zn2 = (2.3e-3)**2 ! brunt vaisala squared |
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76 | zdb = 0.019 ! buoyancy anomaly |
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77 | zh0 = 300._wp |
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78 | zhe = 600._wp |
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79 | zro = sqrt(zdb*zh0) / 1.e-4 ! Rossby radius |
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80 | zri = 1._wp/3._wp |
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81 | zri1 = zri / (2._wp-zri) |
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82 | zri2 = -zri / (2._wp+zri) |
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83 | ! ! T & S profiles |
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84 | DO_2D( 1, 1, 1, 1 ) |
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85 | DO jk = 1, jpkm1 |
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86 | zdt = pdept(ji,jj,jk) |
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87 | zxw = (glamt(ji,jj) + 50._wp) * 1.e3 ! Distance from western wall |
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88 | zh = zh0 * exp(-zxw/zro) |
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89 | ! zstar = (zdt - zh - zhe) / zh |
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90 | ! IF (zstar.ge.zri1 ) THEN |
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91 | ! zf = 1._wp |
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92 | ! ELSEIF ( (zstar.gt.zri2).AND.(zstar.lt.zri1) ) THEN |
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93 | ! zf = zstar/(1._wp+zstar)/zri + 0.5_wp |
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94 | ! ELSE |
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95 | ! zf = 0._wp |
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96 | ! ENDIF |
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97 | IF (zdt > zhe-zh) THEN |
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98 | zf = 0._wp |
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99 | ELSE |
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100 | zf = 1._wp |
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101 | ENDIF |
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102 | zrho1 = rho0*zn2*zdt/grav/rn_a0 |
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103 | pts(ji,jj,jk,jp_tem) = (15._wp - zrho1) * ptmask(ji,jj,jk) |
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104 | ! Mass conserving initialization: |
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105 | ztd = 15._wp*gdepw_0(ji,jj,jk+1)-0.5*rho0*zn2/(rn_a0*grav)*gdepw_0(ji,jj,jk+1)**2 |
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106 | ztu = 15._wp*gdepw_0(ji,jj,jk )-0.5*rho0*zn2/(rn_a0*grav)*gdepw_0(ji,jj,jk )**2 |
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107 | pts(ji,jj,jk,jp_tem) = (ztd - ztu)/e3t_0(ji,jj,jk) * ptmask(ji,jj,jk) |
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108 | IF (Agrif_root().AND.( mjg0(jj) == Nj0glo-2 ) ) THEN |
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109 | pv(ji,jj,jk) = -sqrt(zdb*zh0)*exp(-zxw/zro)*(1._wp-zf) * ptmask(ji,jj,jk) |
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110 | ENDIF |
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111 | IF (Agrif_root().AND.( mjg0(jj) == Nj0glo-1 ) ) THEN |
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112 | pts(ji,jj,jk,jp_tem) = MIN(pts(ji,jj,jk,jp_tem), 15._wp - zdb*rho0/grav/rn_a0*(1._wp-zf)) * ptmask(ji,jj,jk) |
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113 | pts(ji,jj,jk,jp_sal) = 1._wp * ptmask(ji,jj,jk) |
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114 | ENDIF |
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115 | END DO |
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116 | END_2D |
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117 | ! |
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118 | END SUBROUTINE usr_def_istate |
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119 | |
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120 | |
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121 | SUBROUTINE usr_def_istate_ssh( ptmask, pssh ) |
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122 | !!---------------------------------------------------------------------- |
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123 | !! *** ROUTINE usr_def_istate *** |
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124 | !! |
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125 | !! ** Purpose : Initialization of ssh |
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126 | !! Here DOME configuration |
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127 | !! |
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128 | !! ** Method : set no initial sea level anomaly |
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129 | !! |
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130 | !!---------------------------------------------------------------------- |
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131 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: ptmask ! |
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132 | REAL(wp), DIMENSION(jpi,jpj) , INTENT( out) :: pssh ! |
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133 | ! |
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134 | !!---------------------------------------------------------------------- |
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135 | ! |
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136 | pssh(:,:) = 0._wp |
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137 | ! |
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138 | END SUBROUTINE usr_def_istate_ssh |
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139 | |
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140 | !!====================================================================== |
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141 | END MODULE usrdef_istate |
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