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 | !! === SEICHE 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 ! 2016-03 (S. Flavoni, G. Madec) Original code |
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10 | !! ! 2020-11 (S. Techene, G. Madec) separate tsuv from ssh |
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11 | !! ! 2021-01 (J. Chanut) SEICHE case |
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12 | !!---------------------------------------------------------------------- |
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13 | |
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14 | !!---------------------------------------------------------------------- |
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15 | !! usr_def_istate : initial state in Temperature and salinity |
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16 | !!---------------------------------------------------------------------- |
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17 | USE par_oce ! ocean space and time domain |
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18 | USE phycst ! physical constants |
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19 | USE dom_oce, ONLY: glamt, e1t, r1_e1t ! longitude in km |
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20 | USE eosbn2, ONLY : rn_a0 ! thermal expansion |
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21 | USE usrdef_nam ! User defined : namelist variables |
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22 | ! |
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23 | USE in_out_manager ! I/O manager |
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24 | USE lib_mpp ! MPP library |
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25 | |
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26 | IMPLICIT NONE |
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27 | PRIVATE |
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28 | |
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29 | PUBLIC usr_def_istate ! called by istate.F90 |
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30 | PUBLIC usr_def_istate_ssh ! called by domqco.F90 |
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31 | |
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32 | !!---------------------------------------------------------------------- |
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33 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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34 | !! $Id: usrdef_istate.F90 14053 2020-12-03 13:48:38Z techene $ |
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35 | !! Software governed by the CeCILL license (see ./LICENSE) |
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36 | !!---------------------------------------------------------------------- |
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37 | |
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38 | CONTAINS |
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39 | |
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40 | SUBROUTINE usr_def_istate( pdept, ptmask, pts, pu, pv ) |
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41 | !!---------------------------------------------------------------------- |
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42 | !! *** ROUTINE usr_def_istate *** |
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43 | !! |
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44 | !! ** Purpose : Initialization of the dynamics and tracers |
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45 | !! Here SEICHE configuration |
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46 | !! |
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47 | !! ** Method : - set temprature field |
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48 | !! - set salinity field |
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49 | !!---------------------------------------------------------------------- |
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50 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: pdept ! depth of t-point [m] |
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51 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: ptmask ! t-point ocean mask [m] |
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52 | REAL(wp), DIMENSION(jpi,jpj,jpk,jpts), INTENT( out) :: pts ! T & S fields [Celsius ; g/kg] |
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53 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT( out) :: pu ! i-component of the velocity [m/s] |
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54 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT( out) :: pv ! j-component of the velocity [m/s] |
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55 | ! |
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56 | INTEGER :: jk |
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57 | REAL(wp) :: zn2, zdinc |
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58 | REAL(wp), DIMENSION(jpi,jpj) :: zi |
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59 | !!---------------------------------------------------------------------- |
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60 | ! |
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61 | IF(lwp) WRITE(numout,*) |
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62 | IF(lwp) WRITE(numout,*) 'usr_def_istate : SEICHE configuration, analytical definition of initial state' |
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63 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~ Ocean at rest, with a constant salinity (not used as rho=F(T) ' |
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64 | IF(lwp) WRITE(numout,*) ' and a linear temperature stratification (N=1.4e-3 s-1)' |
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65 | ! |
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66 | ! |
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67 | pu (:,:,:) = 0._wp ! ocean at rest |
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68 | pv (:,:,:) = 0._wp |
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69 | ! |
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70 | ! ! T & S profiles |
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71 | zn2 = rn_nn**2 ! N2: brunt vaisala squared |
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72 | ! |
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73 | zdinc = rn_dinc |
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74 | ! trick to recover exact convergence whatever the vertical discretization is |
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75 | ! (that's a density jaobian issue) |
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76 | ! zdinc = rn_dinc*REAL(nn_lev,wp)/REAL(nn_lev-1,wp) |
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77 | ! |
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78 | IF ( nn_test==0 ) THEN |
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79 | pts(:,:,:,jp_tem) = 10._wp |
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80 | ELSEIF ( nn_test==1 ) THEN |
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81 | zi(:,:) = 0.5_wp * rn_H + rn_a * SIN(rpi * glamt(:,:) / rn_L ) |
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82 | DO jk=1, jpkm1 |
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83 | WHERE (pdept (:,:,jk) < zi(:,:)) |
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84 | pts(:,:,jk,jp_tem) = (10._wp + 0.5_wp*zdinc / rn_a0 ) * ptmask(:,:,jk) |
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85 | ELSEWHERE |
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86 | pts(:,:,jk,jp_tem) = (10._wp - 0.5_wp*zdinc / rn_a0 ) * ptmask(:,:,jk) |
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87 | ENDWHERE |
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88 | END DO |
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89 | pts(:,:,jpk,jp_tem) = 0._wp |
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90 | ELSEIF ( nn_test==2 ) THEN |
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91 | pts(:,:,:,jp_tem) = (10._wp - zn2 * pdept(:,:,:) * rho0 / grav / rn_a0 ) * ptmask(:,:,:) |
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92 | ENDIF |
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93 | ! |
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94 | pts(:,:,:,jp_sal) = 35._wp * ptmask(:,:,:) |
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95 | ! |
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96 | END SUBROUTINE usr_def_istate |
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97 | |
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98 | |
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99 | SUBROUTINE usr_def_istate_ssh( ptmask, pssh ) |
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100 | !!---------------------------------------------------------------------- |
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101 | !! *** ROUTINE usr_def_istate_ssh *** |
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102 | !! |
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103 | !! ** Purpose : Initialization of the ssh |
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104 | !! Here SEICHE configuration |
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105 | !! |
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106 | !! ** Method : set ssh to 0 |
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107 | !!---------------------------------------------------------------------- |
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108 | ! |
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109 | REAL(wp), DIMENSION(jpi,jpj,jpk) , INTENT(in ) :: ptmask ! t-point ocean mask [m] |
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110 | REAL(wp), DIMENSION(jpi,jpj) , INTENT( out) :: pssh ! sea-surface height [m] |
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111 | ! |
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112 | !!---------------------------------------------------------------------- |
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113 | ! |
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114 | IF(lwp) WRITE(numout,*) |
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115 | IF(lwp) WRITE(numout,*) 'usr_def_istate_ssh : SEICHE configuration, analytical definition of initial state.' |
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116 | IF(lwp) WRITE(numout,*) '~~~~~~~~~~~~~~~~~~~~' |
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117 | ! |
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118 | IF ( nn_test==2 ) THEN |
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119 | ! Free surface seiche but slightly different initialization in Marsaleix case: |
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120 | pssh(:,:) = rn_a * glamt(:,:) / ( 0.5 * rn_L ) * ptmask(:,:,1) |
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121 | ! pssh(:,:) = rn_a * SIN(rpi * glamt(:,:) / rn_L ) * ptmask(:,:,1) |
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122 | ELSEIF ( nn_test==1 ) THEN |
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123 | ! 2 layer seiche: |
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124 | pssh(:,:) = 0.5_wp*rn_dinc*r1_rho0*rn_a * SIN(rpi * glamt(:,:) / rn_L ) * ptmask(:,:,1) |
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125 | |
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126 | ELSEIF ( nn_test==0 ) THEN |
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127 | ! External seiche: |
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128 | pssh(:,:) = rn_a * SIN(rpi * glamt(:,:) / rn_L ) * ptmask(:,:,1) |
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129 | ! pssh(:,:) = 2._wp * rn_a * rn_L / rpi * 1.e3 * r1_e1t(:,:) * SIN(rpi * glamt(:,:) / rn_L ) & |
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130 | ! & * SIN(0.5_wp * rpi * e1t(:,:) / 1.e3 / rn_L ) * ptmask(:,:,1) |
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131 | ENDIF |
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132 | ! |
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133 | END SUBROUTINE usr_def_istate_ssh |
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134 | |
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135 | !!====================================================================== |
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136 | END MODULE usrdef_istate |
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