1 | MODULE icestp |
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2 | !!====================================================================== |
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3 | !! *** MODULE icestp *** |
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4 | !! Surface module : update the ocean surface boundary condition over ice |
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5 | !! & covered area using LIM sea-ice model |
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6 | !! Sea-Ice model : LIM-3 Sea ice model time-stepping |
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7 | !!===================================================================== |
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8 | !! History : 2.0 ! 2006-12 (M. Vancoppenolle) Original code |
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9 | !! 3.0 ! 2008-02 (C. Talandier) Surface module from icestp.F90 |
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10 | !! - ! 2008-04 (G. Madec) sltyle and ice_ctl routine |
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11 | !! 3.3 ! 2010-11 (G. Madec) ice-ocean stress always computed at each ocean time-step |
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12 | !! 3.4 ! 2011-01 (A Porter) dynamical allocation |
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13 | !! - ! 2012-10 (C. Rousset) add ice_diahsb |
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14 | !! 3.6 ! 2014-07 (M. Vancoppenolle, G. Madec, O. Marti) revise coupled interface |
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15 | !! 4.0 ! 2016-06 (L. Brodeau) new unified bulk routine (based on AeroBulk) |
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16 | !!---------------------------------------------------------------------- |
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17 | #if defined key_lim3 |
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18 | !!---------------------------------------------------------------------- |
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19 | !! 'key_lim3' : LIM 3.0 sea-ice model |
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20 | !!---------------------------------------------------------------------- |
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21 | !! ice_stp : sea-ice model time-stepping and update ocean sbc over ice-covered area |
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22 | !!---------------------------------------------------------------------- |
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23 | USE oce ! ocean dynamics and tracers |
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24 | USE dom_oce ! ocean space and time domain |
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25 | USE ice ! LIM-3: ice variables |
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26 | USE ice1D ! LIM-3: thermodynamical variables |
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27 | ! |
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28 | USE sbc_oce ! Surface boundary condition: ocean fields |
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29 | USE sbc_ice ! Surface boundary condition: ice fields |
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30 | USE iceforcing ! Surface boundary condition for sea ice |
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31 | ! |
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32 | USE phycst ! Define parameters for the routines |
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33 | USE eosbn2 ! equation of state |
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34 | USE icerhg ! Ice rheology |
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35 | USE iceadv ! Ice advection |
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36 | USE icethd ! Ice thermodynamics |
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37 | USE icerdgrft ! Ice ridging/rafting |
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38 | USE iceupdate ! sea surface boundary condition |
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39 | USE icediahsb ! Ice budget diagnostics |
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40 | USE icewri ! Ice outputs |
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41 | USE icerst ! Ice restarts |
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42 | USE iceerr1 ! Ice corrections after dynamics |
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43 | USE iceerr2 ! Ice corrections after thermo |
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44 | USE icevar ! Ice variables switch |
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45 | USE icectl ! |
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46 | ! MV MP 2016 |
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47 | USE limmp |
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48 | ! END MV MP 2016 |
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49 | USE iceistate ! LIM initial state |
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50 | USE icethd_sal ! LIM ice thermodynamics: salinity |
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51 | ! |
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52 | USE c1d ! 1D vertical configuration |
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53 | USE in_out_manager ! I/O manager |
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54 | USE iom ! I/O manager library |
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55 | USE prtctl ! Print control |
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56 | USE lib_fortran ! |
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57 | USE lbclnk ! lateral boundary condition - MPP link |
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58 | USE lib_mpp ! MPP library |
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59 | USE timing ! Timing |
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60 | |
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61 | USE bdy_oce , ONLY: ln_bdy |
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62 | USE bdyice ! unstructured open boundary data |
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63 | # if defined key_agrif |
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64 | USE agrif_ice |
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65 | USE agrif_lim3_update |
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66 | USE agrif_lim3_interp |
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67 | # endif |
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68 | |
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69 | IMPLICIT NONE |
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70 | PRIVATE |
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71 | |
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72 | PUBLIC ice_stp ! routine called by sbcmod.F90 |
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73 | PUBLIC ice_init ! routine called by sbcmod.F90 |
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74 | |
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75 | !! * Substitutions |
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76 | # include "vectopt_loop_substitute.h90" |
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77 | !!---------------------------------------------------------------------- |
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78 | !! NEMO/OPA 4.0 , UCL NEMO Consortium (2011) |
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79 | !! $Id: icestp.F90 8319 2017-07-11 15:00:44Z clem $ |
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80 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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81 | !!---------------------------------------------------------------------- |
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82 | CONTAINS |
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83 | |
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84 | SUBROUTINE ice_stp( kt, ksbc ) |
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85 | !!--------------------------------------------------------------------- |
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86 | !! *** ROUTINE ice_stp *** |
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87 | !! |
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88 | !! ** Purpose : update the ocean surface boundary condition via the |
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89 | !! Louvain la Neuve Sea Ice Model time stepping |
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90 | !! |
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91 | !! ** Method : ice model time stepping |
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92 | !! - call the ice dynamics routine |
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93 | !! - call the ice advection/diffusion routine |
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94 | !! - call the ice thermodynamics routine |
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95 | !! - call the routine that computes mass and |
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96 | !! heat fluxes at the ice/ocean interface |
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97 | !! - save the outputs |
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98 | !! - save the outputs for restart when necessary |
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99 | !! |
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100 | !! ** Action : - time evolution of the LIM sea-ice model |
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101 | !! - update all sbc variables below sea-ice: |
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102 | !! utau, vtau, taum, wndm, qns , qsr, emp , sfx |
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103 | !!--------------------------------------------------------------------- |
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104 | INTEGER, INTENT(in) :: kt ! ocean time step |
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105 | INTEGER, INTENT(in) :: ksbc ! type of sbc flux ( 1 = user defined formulation, |
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106 | ! 3 = bulk formulation, |
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107 | ! 4 = Pure Coupled formulation) |
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108 | INTEGER :: jl ! dummy loop index |
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109 | !!---------------------------------------------------------------------- |
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110 | |
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111 | IF( nn_timing == 1 ) CALL timing_start('ice_stp') |
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112 | |
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113 | !-----------------------! |
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114 | ! --- Ice time step --- ! |
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115 | !-----------------------! |
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116 | IF( MOD( kt-1, nn_fsbc ) == 0 ) THEN |
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117 | |
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118 | ! Ice model time step |
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119 | kt_ice = kt |
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120 | |
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121 | # if defined key_agrif |
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122 | IF( .NOT. Agrif_Root() ) lim_nbstep = MOD( lim_nbstep, Agrif_irhot() * Agrif_Parent(nn_fsbc) / nn_fsbc ) + 1 |
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123 | # endif |
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124 | |
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125 | ! mean surface ocean current at ice velocity point (C-grid dynamics : U- & V-points as the ocean) |
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126 | u_oce(:,:) = ssu_m(:,:) * umask(:,:,1) |
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127 | v_oce(:,:) = ssv_m(:,:) * vmask(:,:,1) |
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128 | |
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129 | ! masked sea surface freezing temperature [Kelvin] (set to rt0 over land) |
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130 | CALL eos_fzp( sss_m(:,:) , t_bo(:,:) ) |
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131 | t_bo(:,:) = ( t_bo(:,:) + rt0 ) * tmask(:,:,1) + rt0 * ( 1._wp - tmask(:,:,1) ) |
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132 | |
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133 | ! Mask sea ice surface temperature (set to rt0 over land) |
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134 | DO jl = 1, jpl |
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135 | t_su(:,:,jl) = t_su(:,:,jl) * tmask(:,:,1) + rt0 * ( 1._wp - tmask(:,:,1) ) |
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136 | END DO |
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137 | ! |
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138 | CALL ice_bef ! Store previous ice values |
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139 | !------------------------------------------------! |
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140 | ! --- Dynamical coupling with the atmosphere --- ! |
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141 | !------------------------------------------------! |
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142 | ! it provides: |
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143 | ! utau_ice, vtau_ice = surface ice stress [N/m2] |
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144 | !-------------------------------------------------- |
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145 | CALL ice_forcing_tau( kt, ksbc, utau_ice, vtau_ice ) |
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146 | |
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147 | !-------------------------------------------------------! |
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148 | ! --- ice dynamics and transport (except in 1D case) ---! |
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149 | !-------------------------------------------------------! |
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150 | CALL ice_diag0 ! set diag of mass, heat and salt fluxes to 0 |
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151 | CALL ice_rst_opn( kt ) ! Open Ice restart file |
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152 | ! |
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153 | ! --- zap this if no ice dynamics --- ! |
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154 | IF( .NOT. lk_c1d .AND. ln_limdyn ) THEN |
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155 | CALL ice_rhg( kt ) ! -- rheology |
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156 | CALL ice_adv( kt ) ! -- advection |
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157 | IF( nn_limdyn == 2 .AND. nn_monocat /= 2 ) & ! -- ridging/rafting |
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158 | & CALL ice_rdgrft |
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159 | IF( nn_limdyn == 2 ) CALL ice_err1( kt ) ! -- Corrections |
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160 | ! |
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161 | ENDIF |
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162 | |
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163 | ! --- |
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164 | #if defined key_agrif |
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165 | IF( .NOT. Agrif_Root() ) CALL agrif_interp_lim3('T') |
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166 | #endif |
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167 | IF( ln_limthd .AND. ln_bdy ) CALL bdy_ice( kt ) ! -- bdy ice thermo |
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168 | ! previous lead fraction and ice volume for flux calculations |
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169 | CALL ice_var_glo2eqv ! ht_i and ht_s for ice albedo calculation |
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170 | CALL ice_var_agg(1) ! at_i for coupling |
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171 | CALL ice_bef |
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172 | |
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173 | !------------------------------------------------------! |
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174 | ! --- Thermodynamical coupling with the atmosphere --- ! |
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175 | !------------------------------------------------------! |
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176 | ! It provides the following fields used in sea ice model: |
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177 | ! fr1_i0 , fr2_i0 = 1sr & 2nd fraction of qsr penetration in ice [%] |
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178 | ! emp_oce , emp_ice = E-P over ocean and sea ice [Kg/m2/s] |
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179 | ! sprecip = solid precipitation [Kg/m2/s] |
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180 | ! evap_ice = sublimation [Kg/m2/s] |
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181 | ! qsr_tot , qns_tot = solar & non solar heat flux (total) [W/m2] |
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182 | ! qsr_ice , qns_ice = solar & non solar heat flux over ice [W/m2] |
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183 | ! dqns_ice = non solar heat sensistivity [W/m2] |
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184 | ! qemp_oce, qemp_ice, qprec_ice, qevap_ice = sensible heat (associated with evap & precip) [W/m2] |
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185 | !------------------------------------------------------------------------------------------------------ |
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186 | CALL ice_forcing_flx( kt, ksbc ) |
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187 | |
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188 | !----------------------------! |
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189 | ! --- ice thermodynamics --- ! |
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190 | !----------------------------! |
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191 | ! --- zap this if no ice thermo --- ! |
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192 | IF( ln_limthd ) CALL ice_thd( kt ) ! -- Ice thermodynamics |
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193 | |
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194 | ! MV MP 2016 |
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195 | IF ( ln_pnd ) CALL lim_mp( kt ) ! -- Melt ponds |
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196 | ! END MV MP 2016 |
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197 | |
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198 | IF( ln_limthd ) CALL ice_err2( kt ) ! -- Corrections |
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199 | ! --- |
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200 | # if defined key_agrif |
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201 | IF( .NOT. Agrif_Root() ) CALL agrif_update_lim3( kt ) |
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202 | # endif |
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203 | CALL ice_var_glo2eqv ! necessary calls (at least for coupling) |
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204 | CALL ice_var_agg( 2 ) ! necessary calls (at least for coupling) |
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205 | ! |
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206 | !! clem: one should switch the calculation of the fluxes onto the parent grid but the following calls do not work |
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207 | !! moreover it should only be called at the update frequency (as in agrif_lim3_update.F90) |
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208 | !!# if defined key_agrif |
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209 | !! IF( .NOT. Agrif_Root() ) CALL Agrif_ChildGrid_To_ParentGrid() |
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210 | !!# endif |
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211 | CALL ice_update_flx( kt ) ! -- Update surface ocean mass, heat and salt fluxes |
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212 | !!# if defined key_agrif |
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213 | !! IF( .NOT. Agrif_Root() ) CALL Agrif_ParentGrid_To_ChildGrid() |
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214 | !!# endif |
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215 | IF( ln_limdiahsb ) CALL ice_diahsb( kt ) ! -- Diagnostics and outputs |
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216 | ! |
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217 | CALL ice_wri( 1 ) ! -- Ice outputs |
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218 | ! |
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219 | IF( kt == nit000 .AND. ln_rstart ) & |
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220 | & CALL iom_close( numrir ) ! close input ice restart file |
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221 | ! |
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222 | IF( lrst_ice ) CALL ice_rst_write( kt ) ! -- Ice restart file |
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223 | ! |
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224 | IF( ln_limctl ) CALL ice_ctl( kt ) ! alerts in case of model crash |
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225 | ! |
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226 | ENDIF ! End sea-ice time step only |
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227 | |
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228 | !-------------------------! |
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229 | ! --- Ocean time step --- ! |
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230 | !-------------------------! |
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231 | ! Update surface ocean stresses (only in ice-dynamic case) otherwise the atm.-ocean stresses are used everywhere |
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232 | ! using before instantaneous surf. currents |
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233 | IF( ln_limdyn ) CALL ice_update_tau( kt, ub(:,:,1), vb(:,:,1) ) |
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234 | !!gm remark, the ocean-ice stress is not saved in ice diag call above ..... find a solution!!! |
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235 | ! |
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236 | IF( nn_timing == 1 ) CALL timing_stop('ice_stp') |
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237 | ! |
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238 | END SUBROUTINE ice_stp |
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239 | |
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240 | |
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241 | SUBROUTINE ice_init |
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242 | !!---------------------------------------------------------------------- |
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243 | !! *** ROUTINE ice_init *** |
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244 | !! |
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245 | !! ** purpose : Allocate all the dynamic arrays of the LIM-3 modules |
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246 | !!---------------------------------------------------------------------- |
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247 | INTEGER :: ji, jj, ierr |
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248 | !!---------------------------------------------------------------------- |
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249 | IF(lwp) WRITE(numout,*) |
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250 | IF(lwp) WRITE(numout,*) 'ice_init : update ocean surface boudary condition' |
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251 | IF(lwp) WRITE(numout,*) '~~~~~~~~ via Louvain la Neuve Ice Model (LIM-3) time stepping' |
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252 | ! |
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253 | ! ! Open the reference and configuration namelist files and namelist output file |
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254 | CALL ctl_opn( numnam_ice_ref, 'namelist_ice_ref', 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, numout, lwp ) |
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255 | CALL ctl_opn( numnam_ice_cfg, 'namelist_ice_cfg', 'OLD', 'FORMATTED', 'SEQUENTIAL', -1, numout, lwp ) |
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256 | IF(lwm) CALL ctl_opn( numoni, 'output.namelist.ice', 'UNKNOWN', 'FORMATTED', 'SEQUENTIAL', -1, numout, lwp, 1 ) |
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257 | ! |
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258 | CALL ice_run_init ! set some ice run parameters |
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259 | ! |
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260 | ! ! Allocate the ice arrays (sbc_ice already allocated in sbc_init) |
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261 | ierr = ice_alloc () ! ice variables |
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262 | ierr = ierr + sbc_ice_alloc () ! surface forcing |
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263 | ierr = ierr + ice1D_alloc () ! thermodynamics |
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264 | IF( ln_limdyn ) ierr = ierr + ice_rdgrft_alloc () ! ridging/rafting |
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265 | ! |
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266 | IF( lk_mpp ) CALL mpp_sum( ierr ) |
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267 | IF( ierr /= 0 ) CALL ctl_stop('STOP', 'ice_init : unable to allocate ice arrays') |
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268 | ! |
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269 | CALL ice_rhg_init ! set ice dynamics parameters |
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270 | ! |
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271 | CALL ice_itd_init ! ice thickness distribution initialization |
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272 | ! |
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273 | CALL ice_thd_init ! set ice thermodynics parameters |
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274 | ! |
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275 | CALL ice_thd_sal_init ! set ice salinity parameters |
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276 | |
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277 | ! MV MP 2016 |
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278 | CALL lim_mp_init ! set melt ponds parameters |
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279 | ! END MV MP 2016 |
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280 | |
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281 | IF( ln_limdyn ) CALL ice_rdgrft_init ! ice thickness distribution initialization for ridging/rafting |
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282 | ! ! Initial sea-ice state |
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283 | IF( .NOT. ln_rstart ) THEN ! start from rest: sea-ice deduced from sst |
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284 | CALL ice_istate |
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285 | ELSE ! start from a restart file |
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286 | CALL ice_rst_read |
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287 | ENDIF |
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288 | CALL ice_var_agg(2) |
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289 | CALL ice_var_glo2eqv |
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290 | ! |
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291 | CALL ice_update_init ! ice surface boundary condition |
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292 | ! |
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293 | IF( ln_limdiahsb) CALL ice_diahsb_init ! initialization for diags |
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294 | ! |
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295 | fr_i(:,:) = at_i(:,:) ! initialisation of sea-ice fraction |
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296 | tn_ice(:,:,:) = t_su(:,:,:) ! initialisation of surface temp for coupled simu |
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297 | ! |
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298 | DO jj = 1, jpj |
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299 | DO ji = 1, jpi |
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300 | IF( gphit(ji,jj) > 0._wp ) THEN ; rn_amax_2d(ji,jj) = rn_amax_n ! NH |
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301 | ELSE ; rn_amax_2d(ji,jj) = rn_amax_s ! SH |
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302 | ENDIF |
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303 | END DO |
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304 | END DO |
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305 | ! |
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306 | END SUBROUTINE ice_init |
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307 | |
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308 | |
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309 | SUBROUTINE ice_run_init |
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310 | !!------------------------------------------------------------------- |
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311 | !! *** ROUTINE ice_run_init *** |
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312 | !! |
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313 | !! ** Purpose : Definition some run parameter for ice model |
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314 | !! |
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315 | !! ** Method : Read the namicerun namelist and check the parameter |
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316 | !! values called at the first timestep (nit000) |
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317 | !! |
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318 | !! ** input : Namelist namicerun |
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319 | !!------------------------------------------------------------------- |
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320 | INTEGER :: ios ! Local integer output status for namelist read |
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321 | NAMELIST/namicerun/ jpl, nlay_i, nlay_s, nn_monocat, rn_amax_n, rn_amax_s, cn_icerst_in, cn_icerst_indir, & |
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322 | & cn_icerst_out, cn_icerst_outdir, ln_limthd, ln_limdyn, nn_limdyn, rn_uice, rn_vice |
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323 | NAMELIST/namicediag/ ln_limdiachk, ln_limdiahsb, ln_limctl, iiceprt, jiceprt |
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324 | !!------------------------------------------------------------------- |
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325 | ! |
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326 | REWIND( numnam_ice_ref ) ! Namelist namicerun in reference namelist : Parameters for ice |
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327 | READ ( numnam_ice_ref, namicerun, IOSTAT = ios, ERR = 901) |
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328 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namicerun in reference namelist', lwp ) |
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329 | |
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330 | REWIND( numnam_ice_cfg ) ! Namelist namicerun in configuration namelist : Parameters for ice |
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331 | READ ( numnam_ice_cfg, namicerun, IOSTAT = ios, ERR = 902 ) |
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332 | 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namicerun in configuration namelist', lwp ) |
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333 | IF(lwm) WRITE ( numoni, namicerun ) |
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334 | ! |
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335 | REWIND( numnam_ice_ref ) ! Namelist namicediag in reference namelist : Parameters for ice |
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336 | READ ( numnam_ice_ref, namicediag, IOSTAT = ios, ERR = 903) |
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337 | 903 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namicediag in reference namelist', lwp ) |
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338 | |
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339 | REWIND( numnam_ice_cfg ) ! Namelist namicediag in configuration namelist : Parameters for ice |
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340 | READ ( numnam_ice_cfg, namicediag, IOSTAT = ios, ERR = 904 ) |
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341 | 904 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namicediag in configuration namelist', lwp ) |
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342 | IF(lwm) WRITE ( numoni, namicediag ) |
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343 | ! |
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344 | IF(lwp) THEN ! control print |
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345 | WRITE(numout,*) |
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346 | WRITE(numout,*) 'ice_run_init : ice share parameters for dynamics/advection/thermo of sea-ice' |
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347 | WRITE(numout,*) ' ~~~~~~' |
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348 | WRITE(numout,*) ' number of ice categories jpl = ', jpl |
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349 | WRITE(numout,*) ' number of ice layers nlay_i = ', nlay_i |
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350 | WRITE(numout,*) ' number of snow layers nlay_s = ', nlay_s |
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351 | WRITE(numout,*) ' virtual ITD mono-category param (1-4) or not (0) nn_monocat = ', nn_monocat |
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352 | WRITE(numout,*) ' maximum ice concentration for NH = ', rn_amax_n |
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353 | WRITE(numout,*) ' maximum ice concentration for SH = ', rn_amax_s |
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354 | WRITE(numout,*) ' Ice thermodynamics (T) or not (F) ln_limthd = ', ln_limthd |
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355 | WRITE(numout,*) ' Ice dynamics (T) or not (F) ln_limdyn = ', ln_limdyn |
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356 | WRITE(numout,*) ' (ln_limdyn=T) Ice dynamics switch nn_limdyn = ', nn_limdyn |
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357 | WRITE(numout,*) ' 2: total' |
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358 | WRITE(numout,*) ' 1: advection only (no diffusion, no ridging/rafting)' |
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359 | WRITE(numout,*) ' 0: advection only (as 1 + prescribed velocity, bypass rheology)' |
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360 | WRITE(numout,*) ' (ln_limdyn=T) prescribed u-vel (case nn_limdyn=0) = ', rn_uice |
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361 | WRITE(numout,*) ' (ln_limdyn=T) prescribed v-vel (case nn_limdyn=0) = ', rn_vice |
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362 | WRITE(numout,*) |
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363 | WRITE(numout,*) '...and ice diagnostics' |
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364 | WRITE(numout,*) ' ~~~~~~~~~~~~~~~~~~~~' |
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365 | WRITE(numout,*) ' Diagnose online heat/mass/salt budget ln_limdiachk = ', ln_limdiachk |
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366 | WRITE(numout,*) ' Output heat/mass/salt budget ln_limdiahsb = ', ln_limdiahsb |
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367 | WRITE(numout,*) ' control prints in ocean.out for (i,j)=(iiceprt,jiceprt) = ', ln_limctl |
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368 | WRITE(numout,*) ' i-index for control prints (ln_limctl=true) = ', iiceprt |
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369 | WRITE(numout,*) ' j-index for control prints (ln_limctl=true) = ', jiceprt |
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370 | ENDIF |
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371 | ! |
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372 | IF ( ( jpl > 1 ) .AND. ( nn_monocat == 1 ) ) THEN |
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373 | nn_monocat = 0 |
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374 | IF(lwp) WRITE(numout,*) |
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375 | IF(lwp) WRITE(numout,*) ' nn_monocat forced to 0 as jpl>1, i.e. multi-category case is chosen' |
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376 | ENDIF |
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377 | IF ( ( jpl == 1 ) .AND. ( nn_monocat == 0 ) ) THEN |
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378 | CALL ctl_stop( 'STOP', 'ice_run_init : if jpl=1 then nn_monocat should be between 1 and 4' ) |
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379 | ENDIF |
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380 | ! |
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381 | ! sea-ice timestep and inverse |
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382 | rdt_ice = REAL(nn_fsbc) * rdt |
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383 | r1_rdtice = 1._wp / rdt_ice |
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384 | |
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385 | ! inverse of nlay_i and nlay_s |
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386 | r1_nlay_i = 1._wp / REAL( nlay_i, wp ) |
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387 | r1_nlay_s = 1._wp / REAL( nlay_s, wp ) |
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388 | ! |
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389 | IF( lwp .AND. ln_bdy .AND. ln_limdiachk ) & |
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390 | & CALL ctl_warn('online conservation check activated but it does not work with BDY') |
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391 | ! |
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392 | IF( lwp ) WRITE(numout,*) ' ice timestep rdt_ice = ', rdt_ice |
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393 | ! |
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394 | END SUBROUTINE ice_run_init |
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395 | |
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396 | |
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397 | SUBROUTINE ice_itd_init |
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398 | !!------------------------------------------------------------------ |
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399 | !! *** ROUTINE ice_itd_init *** |
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400 | !! |
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401 | !! ** Purpose : Initializes the ice thickness distribution |
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402 | !! ** Method : ... |
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403 | !! ** input : Namelist namiceitd |
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404 | !!------------------------------------------------------------------- |
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405 | INTEGER :: ios ! Local integer output status for namelist read |
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406 | NAMELIST/namiceitd/ rn_himean |
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407 | ! |
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408 | INTEGER :: jl ! dummy loop index |
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409 | REAL(wp) :: zc1, zc2, zc3, zx1 ! local scalars |
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410 | REAL(wp) :: zhmax, znum, zden, zalpha ! |
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411 | !!------------------------------------------------------------------ |
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412 | ! |
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413 | REWIND( numnam_ice_ref ) ! Namelist namiceitd in reference namelist : Parameters for ice |
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414 | READ ( numnam_ice_ref, namiceitd, IOSTAT = ios, ERR = 905) |
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415 | 905 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namiceitd in reference namelist', lwp ) |
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416 | |
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417 | REWIND( numnam_ice_cfg ) ! Namelist namiceitd in configuration namelist : Parameters for ice |
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418 | READ ( numnam_ice_cfg, namiceitd, IOSTAT = ios, ERR = 906 ) |
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419 | 906 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namiceitd in configuration namelist', lwp ) |
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420 | IF(lwm) WRITE ( numoni, namiceitd ) |
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421 | ! |
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422 | IF(lwp) THEN ! control print |
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423 | WRITE(numout,*) |
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424 | WRITE(numout,*) 'ice_itd_init : Initialization of ice cat distribution ' |
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425 | WRITE(numout,*) '~~~~~~~~~~~~' |
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426 | WRITE(numout,*) ' mean ice thickness in the domain rn_himean = ', rn_himean |
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427 | ENDIF |
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428 | ! |
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429 | !---------------------------------- |
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430 | !- Thickness categories boundaries |
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431 | !---------------------------------- |
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432 | ! |
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433 | !== h^(-alpha) function ==! |
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434 | zalpha = 0.05_wp |
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435 | zhmax = 3._wp * rn_himean |
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436 | DO jl = 1, jpl |
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437 | znum = jpl * ( zhmax+1 )**zalpha |
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438 | zden = REAL( jpl-jl , wp ) * ( zhmax + 1._wp )**zalpha + REAL( jl , wp ) |
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439 | hi_max(jl) = ( znum / zden )**(1./zalpha) - 1 |
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440 | END DO |
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441 | ! |
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442 | DO jl = 1, jpl ! mean thickness by category |
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443 | hi_mean(jl) = ( hi_max(jl) + hi_max(jl-1) ) * 0.5_wp |
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444 | END DO |
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445 | ! |
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446 | hi_max(jpl) = 99._wp ! set to a big value to ensure that all ice is thinner than hi_max(jpl) |
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447 | ! |
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448 | IF(lwp) WRITE(numout,*) |
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449 | IF(lwp) WRITE(numout,*) ' Thickness category boundaries ' |
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450 | IF(lwp) WRITE(numout,*) ' hi_max ', hi_max(0:jpl) |
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451 | ! |
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452 | END SUBROUTINE ice_itd_init |
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453 | |
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454 | SUBROUTINE ice_bef |
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455 | !!---------------------------------------------------------------------- |
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456 | !! *** ROUTINE ice_bef *** |
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457 | !! |
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458 | !! ** purpose : store ice variables at "before" time step |
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459 | !!---------------------------------------------------------------------- |
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460 | INTEGER :: ji, jj, jl ! dummy loop index |
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461 | !!---------------------------------------------------------------------- |
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462 | ! |
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463 | DO jl = 1, jpl |
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464 | DO jj = 2, jpjm1 |
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465 | DO ji = 2, jpim1 |
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466 | a_i_b (ji,jj,jl) = a_i (ji,jj,jl) ! ice area |
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467 | v_i_b (ji,jj,jl) = v_i (ji,jj,jl) ! ice volume |
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468 | v_s_b (ji,jj,jl) = v_s (ji,jj,jl) ! snow volume |
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469 | smv_i_b(ji,jj,jl) = smv_i(ji,jj,jl) ! salt content |
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470 | oa_i_b (ji,jj,jl) = oa_i (ji,jj,jl) ! areal age content |
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471 | e_s_b (ji,jj,:,jl) = e_s (ji,jj,:,jl) ! snow thermal energy |
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472 | e_i_b (ji,jj,:,jl) = e_i (ji,jj,:,jl) ! ice thermal energy |
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473 | ! ! ice thickness |
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474 | rswitch = MAX( 0._wp , SIGN( 1._wp, a_i_b(ji,jj,jl) - epsi20 ) ) ! 0 if no ice and 1 if yes |
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475 | ht_i_b(ji,jj,jl) = v_i_b (ji,jj,jl) / MAX( a_i_b(ji,jj,jl) , epsi20 ) * rswitch |
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476 | ht_s_b(ji,jj,jl) = v_s_b (ji,jj,jl) / MAX( a_i_b(ji,jj,jl) , epsi20 ) * rswitch |
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477 | END DO |
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478 | END DO |
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479 | END DO |
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480 | CALL lbc_lnk_multi( a_i_b, 'T', 1., v_i_b , 'T', 1., v_s_b , 'T', 1., smv_i_b, 'T', 1., & |
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481 | & oa_i_b, 'T', 1., ht_i_b, 'T', 1., ht_s_b, 'T', 1. ) |
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482 | CALL lbc_lnk( e_i_b, 'T', 1. ) |
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483 | CALL lbc_lnk( e_s_b, 'T', 1. ) |
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484 | |
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485 | ! ice velocities & total concentration |
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486 | DO jj = 2, jpjm1 |
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487 | DO ji = 2, jpim1 |
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488 | at_i_b(ji,jj) = SUM( a_i_b(ji,jj,:) ) |
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489 | u_ice_b(ji,jj) = u_ice(ji,jj) |
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490 | v_ice_b(ji,jj) = v_ice(ji,jj) |
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491 | END DO |
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492 | END DO |
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493 | CALL lbc_lnk_multi( at_i_b, 'T', 1., u_ice_b , 'U', -1., v_ice_b , 'V', -1. ) |
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494 | |
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495 | END SUBROUTINE ice_bef |
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496 | |
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497 | |
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498 | SUBROUTINE ice_diag0 |
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499 | !!---------------------------------------------------------------------- |
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500 | !! *** ROUTINE ice_diag0 *** |
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501 | !! |
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502 | !! ** purpose : set ice-ocean and ice-atm. fluxes to zeros at the beggining |
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503 | !! of the time step |
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504 | !!---------------------------------------------------------------------- |
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505 | INTEGER :: ji, jj ! dummy loop index |
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506 | !!---------------------------------------------------------------------- |
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507 | DO jj = 1, jpj |
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508 | DO ji = 1, jpi |
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509 | sfx (ji,jj) = 0._wp ; |
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510 | sfx_bri(ji,jj) = 0._wp ; sfx_lam(ji,jj) = 0._wp |
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511 | sfx_sni(ji,jj) = 0._wp ; sfx_opw(ji,jj) = 0._wp |
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512 | sfx_bog(ji,jj) = 0._wp ; sfx_dyn(ji,jj) = 0._wp |
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513 | sfx_bom(ji,jj) = 0._wp ; sfx_sum(ji,jj) = 0._wp |
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514 | sfx_res(ji,jj) = 0._wp ; sfx_sub(ji,jj) = 0._wp |
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515 | ! |
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516 | wfx_snw(ji,jj) = 0._wp ; wfx_ice(ji,jj) = 0._wp |
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517 | wfx_sni(ji,jj) = 0._wp ; wfx_opw(ji,jj) = 0._wp |
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518 | wfx_bog(ji,jj) = 0._wp ; wfx_dyn(ji,jj) = 0._wp |
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519 | wfx_bom(ji,jj) = 0._wp ; wfx_sum(ji,jj) = 0._wp |
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520 | wfx_res(ji,jj) = 0._wp ; wfx_sub(ji,jj) = 0._wp |
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521 | wfx_spr(ji,jj) = 0._wp ; wfx_lam(ji,jj) = 0._wp |
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522 | wfx_snw_dyn(ji,jj) = 0._wp ; wfx_snw_sum(ji,jj) = 0._wp |
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523 | wfx_snw_sub(ji,jj) = 0._wp ; wfx_ice_sub(ji,jj) = 0._wp |
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524 | wfx_snw_sni(ji,jj) = 0._wp |
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525 | ! MV MP 2016 |
---|
526 | wfx_pnd(ji,jj) = 0._wp |
---|
527 | ! END MV MP 2016 |
---|
528 | |
---|
529 | hfx_thd(ji,jj) = 0._wp ; |
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530 | hfx_snw(ji,jj) = 0._wp ; hfx_opw(ji,jj) = 0._wp |
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531 | hfx_bog(ji,jj) = 0._wp ; hfx_dyn(ji,jj) = 0._wp |
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532 | hfx_bom(ji,jj) = 0._wp ; hfx_sum(ji,jj) = 0._wp |
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533 | hfx_res(ji,jj) = 0._wp ; hfx_sub(ji,jj) = 0._wp |
---|
534 | hfx_spr(ji,jj) = 0._wp ; hfx_dif(ji,jj) = 0._wp |
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535 | hfx_err(ji,jj) = 0._wp ; hfx_err_rem(ji,jj) = 0._wp |
---|
536 | hfx_err_dif(ji,jj) = 0._wp |
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537 | wfx_err_sub(ji,jj) = 0._wp |
---|
538 | ! |
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539 | afx_tot(ji,jj) = 0._wp ; |
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540 | afx_dyn(ji,jj) = 0._wp ; afx_thd(ji,jj) = 0._wp |
---|
541 | ! |
---|
542 | diag_heat(ji,jj) = 0._wp ; diag_smvi(ji,jj) = 0._wp |
---|
543 | diag_vice(ji,jj) = 0._wp ; diag_vsnw(ji,jj) = 0._wp |
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544 | |
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545 | ! SIMIP diagnostics |
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546 | diag_dms_dyn(ji,jj) = 0._wp ; diag_dmi_dyn(ji,jj) = 0._wp |
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547 | diag_fc_bo(ji,jj) = 0._wp ; diag_fc_su(ji,jj) = 0._wp |
---|
548 | |
---|
549 | tau_icebfr(ji,jj) = 0._wp; ! landfast ice param only (clem: important to keep the init here) |
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550 | END DO |
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551 | END DO |
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552 | |
---|
553 | END SUBROUTINE ice_diag0 |
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554 | |
---|
555 | #else |
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556 | !!---------------------------------------------------------------------- |
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557 | !! Default option Dummy module NO LIM 3.0 sea-ice model |
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558 | !!---------------------------------------------------------------------- |
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559 | CONTAINS |
---|
560 | ! |
---|
561 | SUBROUTINE ice_stp ( kt, ksbc ) ! Dummy routine |
---|
562 | INTEGER, INTENT(in) :: kt, ksbc |
---|
563 | WRITE(*,*) 'ice_stp: You should not have seen this print! error?', kt |
---|
564 | END SUBROUTINE ice_stp |
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565 | ! |
---|
566 | SUBROUTINE ice_init ! Dummy routine |
---|
567 | END SUBROUTINE ice_init |
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568 | #endif |
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569 | |
---|
570 | !!====================================================================== |
---|
571 | END MODULE icestp |
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