1 | MODULE icedyn_rhg |
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2 | !!====================================================================== |
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3 | !! *** MODULE icedyn_rhg *** |
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4 | !! Sea-Ice dynamics : master routine for rheology |
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5 | !!====================================================================== |
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6 | !! history : 4.0 ! 2018 (C. Rousset) Original code |
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7 | !!---------------------------------------------------------------------- |
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8 | #if defined key_si3 |
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9 | !!---------------------------------------------------------------------- |
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10 | !! 'key_si3' SI3 sea-ice model |
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11 | !!---------------------------------------------------------------------- |
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12 | !! ice_dyn_rhg : computes ice velocities |
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13 | !! ice_dyn_rhg_init : initialization and namelist read |
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14 | !!---------------------------------------------------------------------- |
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15 | USE phycst ! physical constants |
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16 | USE dom_oce ! ocean space and time domain |
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17 | USE ice ! sea-ice: variables |
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18 | USE icedyn_rhg_evp ! sea-ice: EVP rheology |
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19 | USE icectl ! sea-ice: control prints |
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20 | ! |
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21 | USE in_out_manager ! I/O manager |
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22 | USE lib_mpp ! MPP library |
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23 | USE lib_fortran ! fortran utilities (glob_sum + no signed zero) |
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24 | USE timing ! Timing |
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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 ice_dyn_rhg ! called by icestp.F90 |
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30 | PUBLIC ice_dyn_rhg_init ! called by icestp.F90 |
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31 | |
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32 | INTEGER :: nice_rhg ! choice of the type of rheology |
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33 | ! ! associated indices: |
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34 | INTEGER, PARAMETER :: np_rhgEVP = 1 ! EVP rheology |
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35 | !! INTEGER, PARAMETER :: np_rhgEAP = 2 ! EAP rheology |
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36 | |
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37 | ! ** namelist (namrhg) ** |
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38 | LOGICAL :: ln_rhg_EVP ! EVP rheology |
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39 | ! |
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40 | !! * Substitutions |
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41 | # include "vectopt_loop_substitute.h90" |
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42 | !!---------------------------------------------------------------------- |
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43 | !! NEMO/ICE 4.0 , NEMO Consortium (2018) |
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44 | !! $Id$ |
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45 | !! Software governed by the CeCILL licence (./LICENSE) |
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46 | !!---------------------------------------------------------------------- |
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47 | CONTAINS |
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48 | |
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49 | SUBROUTINE ice_dyn_rhg( kt ) |
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50 | !!------------------------------------------------------------------- |
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51 | !! *** ROUTINE ice_dyn_rhg *** |
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52 | !! |
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53 | !! ** Purpose : compute ice velocity |
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54 | !! |
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55 | !! ** Action : comupte - ice velocity (u_ice, v_ice) |
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56 | !! - 3 components of the stress tensor (stress1_i, stress2_i, stress12_i) |
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57 | !! - shear, divergence and delta (shear_i, divu_i, delta_i) |
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58 | !!-------------------------------------------------------------------- |
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59 | INTEGER, INTENT(in) :: kt ! ice time step |
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60 | ! |
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61 | INTEGER :: jl ! dummy loop indices |
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62 | !!-------------------------------------------------------------------- |
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63 | ! controls |
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64 | IF( ln_timing ) CALL timing_start('icedyn_rhg') ! timing |
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65 | IF( ln_icediachk ) CALL ice_cons_hsm(0, 'icedyn_rhg', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) ! conservation |
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66 | IF( ln_icediachk ) CALL ice_cons2D (0, 'icedyn_rhg', diag_v, diag_s, diag_t, diag_fv, diag_fs, diag_ft) ! conservation |
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67 | ! |
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68 | IF( kt == nit000 .AND. lwp ) THEN |
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69 | WRITE(numout,*) |
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70 | WRITE(numout,*)'ice_dyn_rhg: sea-ice rheology' |
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71 | WRITE(numout,*)'~~~~~~~~~~~' |
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72 | ENDIF |
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73 | ! |
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74 | !--------------! |
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75 | !== Rheology ==! |
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76 | !--------------! |
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77 | SELECT CASE( nice_rhg ) |
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78 | ! !------------------------! |
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79 | CASE( np_rhgEVP ) ! Elasto-Viscous-Plastic ! |
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80 | ! !------------------------! |
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81 | CALL ice_dyn_rhg_evp( kt, stress1_i, stress2_i, stress12_i, shear_i, divu_i, delta_i ) |
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82 | ! |
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83 | END SELECT |
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84 | ! |
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85 | IF( lrst_ice ) THEN !* write EVP fields in the restart file |
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86 | IF( ln_rhg_EVP ) CALL rhg_evp_rst( 'WRITE', kt ) |
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87 | ENDIF |
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88 | ! |
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89 | ! controls |
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90 | IF( ln_ctl ) CALL ice_prt3D ('icedyn_rhg') ! prints |
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91 | IF( ln_icediachk ) CALL ice_cons_hsm(1, 'icedyn_rhg', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) ! conservation |
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92 | IF( ln_icediachk ) CALL ice_cons2D (1, 'icedyn_rhg', diag_v, diag_s, diag_t, diag_fv, diag_fs, diag_ft) ! conservation |
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93 | IF( ln_timing ) CALL timing_stop ('icedyn_rhg') ! timing |
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94 | ! |
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95 | END SUBROUTINE ice_dyn_rhg |
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96 | |
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97 | |
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98 | SUBROUTINE ice_dyn_rhg_init |
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99 | !!------------------------------------------------------------------- |
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100 | !! *** ROUTINE ice_dyn_rhg_init *** |
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101 | !! |
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102 | !! ** Purpose : Physical constants and parameters linked to the ice |
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103 | !! dynamics |
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104 | !! |
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105 | !! ** Method : Read the namdyn_rhg namelist and check the ice-dynamic |
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106 | !! parameter values called at the first timestep (nit000) |
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107 | !! |
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108 | !! ** input : Namelist namdyn_rhg |
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109 | !!------------------------------------------------------------------- |
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110 | INTEGER :: ios, ioptio ! Local integer output status for namelist read |
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111 | !! |
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112 | NAMELIST/namdyn_rhg/ ln_rhg_EVP, ln_aEVP, rn_creepl, rn_ecc , nn_nevp, rn_relast |
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113 | !!------------------------------------------------------------------- |
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114 | ! |
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115 | REWIND( numnam_ice_ref ) ! Namelist namdyn_rhg in reference namelist : Ice dynamics |
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116 | READ ( numnam_ice_ref, namdyn_rhg, IOSTAT = ios, ERR = 901) |
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117 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namdyn_rhg in reference namelist' ) |
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118 | REWIND( numnam_ice_cfg ) ! Namelist namdyn_rhg in configuration namelist : Ice dynamics |
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119 | READ ( numnam_ice_cfg, namdyn_rhg, IOSTAT = ios, ERR = 902 ) |
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120 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namdyn_rhg in configuration namelist' ) |
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121 | IF(lwm) WRITE ( numoni, namdyn_rhg ) |
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122 | ! |
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123 | IF(lwp) THEN ! control print |
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124 | WRITE(numout,*) |
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125 | WRITE(numout,*) 'ice_dyn_rhg_init: ice parameters for ice dynamics ' |
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126 | WRITE(numout,*) '~~~~~~~~~~~~~~~' |
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127 | WRITE(numout,*) ' Namelist : namdyn_rhg:' |
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128 | WRITE(numout,*) ' rheology EVP (icedyn_rhg_evp) ln_rhg_EVP = ', ln_rhg_EVP |
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129 | WRITE(numout,*) ' use adaptive EVP (aEVP) ln_aEVP = ', ln_aEVP |
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130 | WRITE(numout,*) ' creep limit rn_creepl = ', rn_creepl |
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131 | WRITE(numout,*) ' eccentricity of the elliptical yield curve rn_ecc = ', rn_ecc |
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132 | WRITE(numout,*) ' number of iterations for subcycling nn_nevp = ', nn_nevp |
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133 | WRITE(numout,*) ' ratio of elastic timescale over ice time step rn_relast = ', rn_relast |
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134 | ENDIF |
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135 | ! |
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136 | ! !== set the choice of ice advection ==! |
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137 | ioptio = 0 |
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138 | IF( ln_rhg_EVP ) THEN ; ioptio = ioptio + 1 ; nice_rhg = np_rhgEVP ; ENDIF |
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139 | !! IF( ln_rhg_EAP ) THEN ; ioptio = ioptio + 1 ; nice_rhg = np_rhgEAP ; ENDIF |
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140 | IF( ioptio /= 1 ) CALL ctl_stop( 'ice_dyn_rhg_init: choose one and only one ice rheology' ) |
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141 | ! |
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142 | IF( ln_rhg_EVP ) CALL rhg_evp_rst( 'READ' ) !* read or initialize all required files |
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143 | ! |
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144 | END SUBROUTINE ice_dyn_rhg_init |
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145 | |
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146 | #else |
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147 | !!---------------------------------------------------------------------- |
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148 | !! Default option Empty module NO SI3 sea-ice model |
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149 | !!---------------------------------------------------------------------- |
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150 | #endif |
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151 | |
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152 | !!====================================================================== |
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153 | END MODULE icedyn_rhg |
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