1 | MODULE icethd |
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2 | !!====================================================================== |
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3 | !! *** MODULE icethd *** |
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4 | !! sea-ice : master routine for thermodynamics |
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5 | !!====================================================================== |
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6 | !! History : 1.0 ! 2000-01 (M.A. Morales Maqueda, H. Goosse, T. Fichefet) original code 1D |
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7 | !! 4.0 ! 2018 (many people) SI3 [aka Sea Ice cube] |
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8 | !!---------------------------------------------------------------------- |
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9 | #if defined key_si3 |
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10 | !!---------------------------------------------------------------------- |
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11 | !! 'key_si3' SI3 sea-ice model |
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12 | !!---------------------------------------------------------------------- |
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13 | !! ice_thd : thermodynamics of sea ice |
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14 | !! ice_thd_init : initialisation of sea-ice thermodynamics |
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15 | !!---------------------------------------------------------------------- |
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16 | USE phycst ! physical constants |
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17 | USE dom_oce ! ocean space and time domain variables |
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18 | USE ice ! sea-ice: variables |
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19 | !!gm list trop longue ==>>> why not passage en argument d'appel ? |
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20 | USE sbc_oce , ONLY : sss_m, sst_m, e3t_m, utau, vtau, ssu_m, ssv_m, frq_m, sprecip, ln_cpl |
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21 | USE sbc_ice , ONLY : qsr_oce, qns_oce, qemp_oce, qsr_ice, qns_ice, dqns_ice, evap_ice, qprec_ice, qevap_ice, & |
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22 | & qml_ice, qcn_ice, qtr_ice_top |
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23 | USE ice1D ! sea-ice: thermodynamics variables |
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24 | USE icethd_zdf ! sea-ice: vertical heat diffusion |
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25 | USE icethd_dh ! sea-ice: ice-snow growth and melt |
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26 | USE icethd_da ! sea-ice: lateral melting |
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27 | USE icethd_sal ! sea-ice: salinity |
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28 | USE icethd_ent ! sea-ice: enthalpy redistribution |
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29 | USE icethd_do ! sea-ice: growth in open water |
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30 | USE icethd_pnd ! sea-ice: melt ponds |
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31 | USE iceitd ! sea-ice: remapping thickness distribution |
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32 | USE icecor ! sea-ice: corrections |
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33 | USE icetab ! sea-ice: 1D <==> 2D transformation |
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34 | USE icevar ! sea-ice: operations |
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35 | USE icectl ! sea-ice: control print |
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36 | ! |
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37 | USE in_out_manager ! I/O manager |
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38 | USE iom ! I/O manager library |
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39 | USE lib_mpp ! MPP library |
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40 | USE lib_fortran ! fortran utilities (glob_sum + no signed zero) |
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41 | USE lbclnk ! lateral boundary conditions (or mpp links) |
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42 | USE timing ! Timing |
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43 | |
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44 | IMPLICIT NONE |
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45 | PRIVATE |
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46 | |
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47 | PUBLIC ice_thd ! called by limstp module |
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48 | PUBLIC ice_thd_init ! called by ice_init |
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49 | |
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50 | !!** namelist (namthd) ** |
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51 | LOGICAL :: ln_icedH ! activate ice thickness change from growing/melting (T) or not (F) |
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52 | LOGICAL :: ln_icedA ! activate lateral melting param. (T) or not (F) |
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53 | LOGICAL :: ln_icedO ! activate ice growth in open-water (T) or not (F) |
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54 | LOGICAL :: ln_icedS ! activate gravity drainage and flushing (T) or not (F) |
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55 | LOGICAL :: ln_leadhfx ! heat in the leads is used to melt sea-ice before warming the ocean |
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56 | |
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57 | !! for convergence tests |
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58 | REAL(wp), ALLOCATABLE, DIMENSION(:,:,:) :: ztice_cvgerr, ztice_cvgstp |
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59 | |
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60 | !! * Substitutions |
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61 | # include "do_loop_substitute.h90" |
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62 | !!---------------------------------------------------------------------- |
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63 | !! NEMO/ICE 4.0 , NEMO Consortium (2018) |
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64 | !! $Id$ |
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65 | !! Software governed by the CeCILL license (see ./LICENSE) |
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66 | !!---------------------------------------------------------------------- |
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67 | CONTAINS |
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68 | |
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69 | SUBROUTINE ice_thd( kt ) |
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70 | !!------------------------------------------------------------------- |
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71 | !! *** ROUTINE ice_thd *** |
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72 | !! |
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73 | !! ** Purpose : This routine manages ice thermodynamics |
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74 | !! |
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75 | !! ** Action : - computation of oceanic sensible heat flux at the ice base |
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76 | !! energy budget in the leads |
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77 | !! net fluxes on top of ice and of ocean |
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78 | !! - selection of grid cells with ice |
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79 | !! - call ice_thd_zdf for vertical heat diffusion |
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80 | !! - call ice_thd_dh for vertical ice growth and melt |
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81 | !! - call ice_thd_pnd for melt ponds |
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82 | !! - call ice_thd_ent for enthalpy remapping |
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83 | !! - call ice_thd_sal for ice desalination |
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84 | !! - call ice_thd_temp to retrieve temperature from ice enthalpy |
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85 | !! - call ice_thd_mono for extra lateral ice melt if active virtual thickness distribution |
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86 | !! - call ice_thd_da for lateral ice melt |
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87 | !! - back to the geographic grid |
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88 | !! - call ice_thd_rem for remapping thickness distribution |
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89 | !! - call ice_thd_do for ice growth in leads |
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90 | !!------------------------------------------------------------------- |
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91 | INTEGER, INTENT(in) :: kt ! number of iteration |
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92 | ! |
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93 | INTEGER :: ji, jj, jk, jl ! dummy loop indices |
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94 | REAL(wp) :: zfric_u, zqld, zqfr, zqfr_neg, zqfr_pos |
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95 | REAL(wp), PARAMETER :: zfric_umin = 0._wp ! lower bound for the friction velocity (cice value=5.e-04) |
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96 | REAL(wp), PARAMETER :: zch = 0.0057_wp ! heat transfer coefficient |
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97 | REAL(wp), DIMENSION(jpi,jpj) :: zu_io, zv_io, zfric, zvel ! ice-ocean velocity (m/s) and frictional velocity (m2/s2) |
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98 | ! |
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99 | !!------------------------------------------------------------------- |
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100 | ! controls |
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101 | IF( ln_timing ) CALL timing_start('icethd') ! timing |
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102 | IF( ln_icediachk ) CALL ice_cons_hsm(0, 'icethd', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) ! conservation |
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103 | IF( ln_icediachk ) CALL ice_cons2D (0, 'icethd', diag_v, diag_s, diag_t, diag_fv, diag_fs, diag_ft) ! conservation |
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104 | |
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105 | IF( kt == nit000 .AND. lwp ) THEN |
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106 | WRITE(numout,*) |
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107 | WRITE(numout,*) 'ice_thd: sea-ice thermodynamics' |
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108 | WRITE(numout,*) '~~~~~~~' |
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109 | ENDIF |
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110 | |
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111 | ! convergence tests |
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112 | IF( ln_zdf_chkcvg ) THEN |
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113 | ALLOCATE( ztice_cvgerr(jpi,jpj,jpl) , ztice_cvgstp(jpi,jpj,jpl) ) |
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114 | ztice_cvgerr = 0._wp ; ztice_cvgstp = 0._wp |
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115 | ENDIF |
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116 | |
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117 | !---------------------------------------------! |
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118 | ! computation of friction velocity at T points |
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119 | !---------------------------------------------! |
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120 | IF( ln_icedyn ) THEN |
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121 | zu_io(:,:) = u_ice(:,:) - ssu_m(:,:) |
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122 | zv_io(:,:) = v_ice(:,:) - ssv_m(:,:) |
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123 | DO_2D( 0, 0, 0, 0 ) |
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124 | zfric(ji,jj) = rn_cio * ( 0.5_wp * & |
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125 | & ( zu_io(ji,jj) * zu_io(ji,jj) + zu_io(ji-1,jj) * zu_io(ji-1,jj) & |
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126 | & + zv_io(ji,jj) * zv_io(ji,jj) + zv_io(ji,jj-1) * zv_io(ji,jj-1) ) ) * tmask(ji,jj,1) |
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127 | zvel(ji,jj) = 0.5_wp * SQRT( ( u_ice(ji-1,jj) + u_ice(ji,jj) ) * ( u_ice(ji-1,jj) + u_ice(ji,jj) ) + & |
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128 | & ( v_ice(ji,jj-1) + v_ice(ji,jj) ) * ( v_ice(ji,jj-1) + v_ice(ji,jj) ) ) |
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129 | END_2D |
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130 | ELSE ! if no ice dynamics => transmit directly the atmospheric stress to the ocean |
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131 | DO_2D( 0, 0, 0, 0 ) |
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132 | zfric(ji,jj) = r1_rho0 * SQRT( 0.5_wp * & |
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133 | & ( utau(ji,jj) * utau(ji,jj) + utau(ji-1,jj) * utau(ji-1,jj) & |
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134 | & + vtau(ji,jj) * vtau(ji,jj) + vtau(ji,jj-1) * vtau(ji,jj-1) ) ) * tmask(ji,jj,1) |
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135 | zvel(ji,jj) = 0._wp |
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136 | END_2D |
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137 | ENDIF |
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138 | CALL lbc_lnk( 'icethd', zfric, 'T', 1.0_wp, zvel, 'T', 1.0_wp ) |
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139 | ! |
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140 | !--------------------------------------------------------------------! |
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141 | ! Partial computation of forcing for the thermodynamic sea ice model |
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142 | !--------------------------------------------------------------------! |
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143 | DO_2D( nn_hls, nn_hls, nn_hls, nn_hls ) ! needed for qlead |
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144 | rswitch = tmask(ji,jj,1) * MAX( 0._wp , SIGN( 1._wp , at_i(ji,jj) - epsi10 ) ) ! 0 if no ice |
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145 | ! |
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146 | ! --- Energy received in the lead from atm-oce exchanges, zqld is defined everywhere (J.m-2) --- ! |
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147 | zqld = tmask(ji,jj,1) * rDt_ice * & |
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148 | & ( ( 1._wp - at_i_b(ji,jj) ) * qsr_oce(ji,jj) * frq_m(ji,jj) + & |
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149 | & ( 1._wp - at_i_b(ji,jj) ) * qns_oce(ji,jj) + qemp_oce(ji,jj) ) |
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150 | |
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151 | ! --- Energy needed to bring ocean surface layer until its freezing, zqfr is defined everywhere (J.m-2) --- ! |
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152 | ! (mostly<0 but >0 if supercooling) |
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153 | zqfr = rho0 * rcp * e3t_m(ji,jj) * ( t_bo(ji,jj) - ( sst_m(ji,jj) + rt0 ) ) * tmask(ji,jj,1) ! both < 0 (t_bo < sst) and > 0 (t_bo > sst) |
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154 | zqfr_neg = MIN( zqfr , 0._wp ) ! only < 0 |
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155 | zqfr_pos = MAX( zqfr , 0._wp ) ! only > 0 |
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156 | |
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157 | ! --- Sensible ocean-to-ice heat flux (W/m2) --- ! |
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158 | ! (mostly>0 but <0 if supercooling) |
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159 | zfric_u = MAX( SQRT( zfric(ji,jj) ), zfric_umin ) |
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160 | qsb_ice_bot(ji,jj) = rswitch * rho0 * rcp * zch * zfric_u * ( ( sst_m(ji,jj) + rt0 ) - t_bo(ji,jj) ) |
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161 | |
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162 | ! upper bound for qsb_ice_bot: the heat retrieved from the ocean must be smaller than the heat necessary to reach |
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163 | ! the freezing point, so that we do not have SST < T_freeze |
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164 | ! This implies: qsb_ice_bot(ji,jj) * at_i(ji,jj) * rtdice <= - zqfr_neg |
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165 | ! The following formulation is ok for both normal conditions and supercooling |
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166 | qsb_ice_bot(ji,jj) = rswitch * MIN( qsb_ice_bot(ji,jj), - zqfr_neg * r1_Dt_ice / MAX( at_i(ji,jj), epsi10 ) ) |
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167 | |
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168 | ! If conditions are always supercooled (such as at the mouth of ice-shelves), then ice grows continuously |
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169 | ! ==> stop ice formation by artificially setting up the turbulent fluxes to 0 when volume > 20m (arbitrary) |
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170 | IF( ( t_bo(ji,jj) - ( sst_m(ji,jj) + rt0 ) ) > 0._wp .AND. vt_i(ji,jj) >= 20._wp ) THEN |
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171 | zqfr = 0._wp |
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172 | zqfr_pos = 0._wp |
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173 | qsb_ice_bot(ji,jj) = 0._wp |
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174 | ENDIF |
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175 | ! |
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176 | ! --- Energy Budget of the leads (qlead, J.m-2) --- ! |
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177 | ! qlead is the energy received from the atm. in the leads. |
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178 | ! If warming (zqld >= 0), then the energy in the leads is used to melt ice (bottom melting) => fhld (W/m2) |
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179 | ! If cooling (zqld < 0), then the energy in the leads is used to grow ice in open water => qlead (J.m-2) |
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180 | IF( zqld >= 0._wp .AND. at_i(ji,jj) > 0._wp ) THEN |
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181 | ! upper bound for fhld: fhld should be equal to zqld |
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182 | ! but we have to make sure that this heat will not make the sst drop below the freezing point |
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183 | ! so the max heat that can be pulled out of the ocean is zqld - qsb - zqfr_pos |
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184 | ! The following formulation is ok for both normal conditions and supercooling |
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185 | fhld (ji,jj) = rswitch * MAX( 0._wp, ( zqld - zqfr_pos ) * r1_Dt_ice / MAX( at_i(ji,jj), epsi10 ) & ! divided by at_i since this is (re)multiplied by a_i in icethd_dh.F90 |
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186 | & - qsb_ice_bot(ji,jj) ) |
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187 | qlead(ji,jj) = 0._wp |
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188 | ELSE |
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189 | fhld (ji,jj) = 0._wp |
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190 | ! upper bound for qlead: qlead should be equal to zqld |
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191 | ! but before using this heat for ice formation, we suppose that the ocean cools down till the freezing point. |
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192 | ! The energy for this cooling down is zqfr. Also some heat will be removed from the ocean from turbulent fluxes (qsb) |
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193 | ! and freezing point is reached if zqfr = zqld - qsb*a/dt |
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194 | ! so the max heat that can be pulled out of the ocean is zqld - qsb - zqfr |
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195 | ! The following formulation is ok for both normal conditions and supercooling |
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196 | qlead(ji,jj) = MIN( 0._wp , zqld - ( qsb_ice_bot(ji,jj) * at_i(ji,jj) * rDt_ice ) - zqfr ) |
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197 | ENDIF |
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198 | ! |
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199 | ! If ice is landfast and ice concentration reaches its max |
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200 | ! => stop ice formation in open water |
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201 | IF( zvel(ji,jj) <= 5.e-04_wp .AND. at_i(ji,jj) >= rn_amax_2d(ji,jj)-epsi06 ) qlead(ji,jj) = 0._wp |
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202 | ! |
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203 | ! If the grid cell is almost fully covered by ice (no leads) |
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204 | ! => stop ice formation in open water |
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205 | IF( at_i(ji,jj) >= (1._wp - epsi10) ) qlead(ji,jj) = 0._wp |
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206 | ! |
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207 | ! If ln_leadhfx is false |
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208 | ! => do not use energy of the leads to melt sea-ice |
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209 | IF( .NOT.ln_leadhfx ) fhld(ji,jj) = 0._wp |
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210 | ! |
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211 | END_2D |
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212 | |
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213 | ! In case we bypass open-water ice formation |
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214 | IF( .NOT. ln_icedO ) qlead(:,:) = 0._wp |
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215 | ! In case we bypass growing/melting from top and bottom |
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216 | IF( .NOT. ln_icedH ) THEN |
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217 | qsb_ice_bot(:,:) = 0._wp |
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218 | fhld (:,:) = 0._wp |
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219 | ENDIF |
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220 | |
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221 | !-------------------------------------------------------------------------------------------! |
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222 | ! Thermodynamic computation (only on grid points covered by ice) => loop over ice categories |
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223 | !-------------------------------------------------------------------------------------------! |
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224 | DO jl = 1, jpl |
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225 | |
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226 | ! select ice covered grid points |
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227 | npti = 0 ; nptidx(:) = 0 |
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228 | DO_2D( nn_hls, nn_hls, nn_hls, nn_hls ) |
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229 | IF ( a_i(ji,jj,jl) > epsi10 ) THEN |
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230 | npti = npti + 1 |
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231 | nptidx(npti) = (jj - 1) * jpi + ji |
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232 | ENDIF |
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233 | END_2D |
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234 | |
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235 | IF( npti > 0 ) THEN ! If there is no ice, do nothing. |
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236 | ! |
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237 | CALL ice_thd_1d2d( jl, 1 ) ! --- Move to 1D arrays --- ! |
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238 | ! ! --- & Change units of e_i, e_s from J/m2 to J/m3 --- ! |
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239 | ! |
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240 | s_i_new (1:npti) = 0._wp ; dh_s_tot(1:npti) = 0._wp ! --- some init --- ! (important to have them here) |
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241 | dh_i_sum (1:npti) = 0._wp ; dh_i_bom(1:npti) = 0._wp ; dh_i_itm (1:npti) = 0._wp |
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242 | dh_i_sub (1:npti) = 0._wp ; dh_i_bog(1:npti) = 0._wp |
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243 | dh_snowice(1:npti) = 0._wp ; dh_s_mlt(1:npti) = 0._wp |
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244 | ! |
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245 | CALL ice_thd_zdf ! --- Ice-Snow temperature --- ! |
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246 | ! |
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247 | IF( ln_icedH ) THEN ! --- Growing/Melting --- ! |
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248 | CALL ice_thd_dh ! Ice-Snow thickness |
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249 | CALL ice_thd_ent( e_i_1d(1:npti,:) ) ! Ice enthalpy remapping |
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250 | ENDIF |
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251 | CALL ice_thd_sal( ln_icedS ) ! --- Ice salinity --- ! |
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252 | ! |
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253 | CALL ice_thd_temp ! --- Temperature update --- ! |
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254 | ! |
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255 | IF( ln_icedH .AND. ln_virtual_itd ) & |
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256 | & CALL ice_thd_mono ! --- Extra lateral melting if virtual_itd --- ! |
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257 | ! |
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258 | IF( ln_icedA ) CALL ice_thd_da ! --- Lateral melting --- ! |
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259 | ! |
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260 | CALL ice_thd_1d2d( jl, 2 ) ! --- Change units of e_i, e_s from J/m3 to J/m2 --- ! |
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261 | ! ! --- & Move to 2D arrays --- ! |
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262 | ENDIF |
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263 | ! |
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264 | END DO |
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265 | ! |
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266 | IF( ln_icediachk ) CALL ice_cons_hsm(1, 'icethd', rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft) |
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267 | IF( ln_icediachk ) CALL ice_cons2D (1, 'icethd', diag_v, diag_s, diag_t, diag_fv, diag_fs, diag_ft) |
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268 | ! |
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269 | IF ( ln_pnd .AND. ln_icedH ) & |
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270 | & CALL ice_thd_pnd ! --- Melt ponds |
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271 | ! |
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272 | IF( jpl > 1 ) CALL ice_itd_rem( kt ) ! --- Transport ice between thickness categories --- ! |
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273 | ! |
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274 | IF( ln_icedO ) CALL ice_thd_do ! --- Frazil ice growth in leads --- ! |
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275 | ! |
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276 | CALL ice_cor( kt , 2 ) ! --- Corrections --- ! |
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277 | ! |
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278 | oa_i(:,:,:) = oa_i(:,:,:) + a_i(:,:,:) * rDt_ice ! ice natural aging incrementation |
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279 | ! |
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280 | ! convergence tests |
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281 | IF( ln_zdf_chkcvg ) THEN |
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282 | CALL iom_put( 'tice_cvgerr', ztice_cvgerr ) ; DEALLOCATE( ztice_cvgerr ) |
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283 | CALL iom_put( 'tice_cvgstp', ztice_cvgstp ) ; DEALLOCATE( ztice_cvgstp ) |
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284 | ENDIF |
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285 | ! |
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286 | ! controls |
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287 | IF( ln_icectl ) CALL ice_prt (kt, iiceprt, jiceprt, 1, ' - ice thermodyn. - ') ! prints |
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288 | IF( sn_cfctl%l_prtctl ) & |
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289 | & CALL ice_prt3D ('icethd') ! prints |
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290 | IF( ln_timing ) CALL timing_stop('icethd') ! timing |
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291 | ! |
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292 | END SUBROUTINE ice_thd |
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293 | |
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294 | |
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295 | SUBROUTINE ice_thd_temp |
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296 | !!----------------------------------------------------------------------- |
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297 | !! *** ROUTINE ice_thd_temp *** |
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298 | !! |
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299 | !! ** Purpose : Computes sea ice temperature (Kelvin) from enthalpy |
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300 | !! |
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301 | !! ** Method : Formula (Bitz and Lipscomb, 1999) |
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302 | !!------------------------------------------------------------------- |
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303 | INTEGER :: ji, jk ! dummy loop indices |
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304 | REAL(wp) :: ztmelts, zbbb, zccc ! local scalar |
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305 | !!------------------------------------------------------------------- |
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306 | ! Recover ice temperature |
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307 | DO jk = 1, nlay_i |
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308 | DO ji = 1, npti |
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309 | ztmelts = -rTmlt * sz_i_1d(ji,jk) |
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310 | ! Conversion q(S,T) -> T (second order equation) |
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311 | zbbb = ( rcp - rcpi ) * ztmelts + e_i_1d(ji,jk) * r1_rhoi - rLfus |
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312 | zccc = SQRT( MAX( zbbb * zbbb - 4._wp * rcpi * rLfus * ztmelts, 0._wp ) ) |
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313 | t_i_1d(ji,jk) = rt0 - ( zbbb + zccc ) * 0.5_wp * r1_rcpi |
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314 | |
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315 | ! mask temperature |
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316 | rswitch = 1._wp - MAX( 0._wp , SIGN( 1._wp , - h_i_1d(ji) ) ) |
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317 | t_i_1d(ji,jk) = rswitch * t_i_1d(ji,jk) + ( 1._wp - rswitch ) * rt0 |
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318 | END DO |
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319 | END DO |
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320 | ! |
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321 | END SUBROUTINE ice_thd_temp |
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322 | |
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323 | |
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324 | SUBROUTINE ice_thd_mono |
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325 | !!----------------------------------------------------------------------- |
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326 | !! *** ROUTINE ice_thd_mono *** |
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327 | !! |
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328 | !! ** Purpose : Lateral melting in case virtual_itd |
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329 | !! ( dA = A/2h dh ) |
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330 | !!----------------------------------------------------------------------- |
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331 | INTEGER :: ji ! dummy loop indices |
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332 | REAL(wp) :: zhi_bef ! ice thickness before thermo |
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333 | REAL(wp) :: zdh_mel, zda_mel ! net melting |
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334 | REAL(wp) :: zvi, zvs ! ice/snow volumes |
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335 | !!----------------------------------------------------------------------- |
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336 | ! |
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337 | DO ji = 1, npti |
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338 | zdh_mel = MIN( 0._wp, dh_i_itm(ji) + dh_i_sum(ji) + dh_i_bom(ji) + dh_snowice(ji) + dh_i_sub(ji) ) |
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339 | IF( zdh_mel < 0._wp .AND. a_i_1d(ji) > 0._wp ) THEN |
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340 | zvi = a_i_1d(ji) * h_i_1d(ji) |
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341 | zvs = a_i_1d(ji) * h_s_1d(ji) |
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342 | ! lateral melting = concentration change |
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343 | zhi_bef = h_i_1d(ji) - zdh_mel |
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344 | rswitch = MAX( 0._wp , SIGN( 1._wp , zhi_bef - epsi20 ) ) |
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345 | zda_mel = rswitch * a_i_1d(ji) * zdh_mel / ( 2._wp * MAX( zhi_bef, epsi20 ) ) |
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346 | a_i_1d(ji) = MAX( epsi20, a_i_1d(ji) + zda_mel ) |
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347 | ! adjust thickness |
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348 | h_i_1d(ji) = zvi / a_i_1d(ji) |
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349 | h_s_1d(ji) = zvs / a_i_1d(ji) |
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350 | ! retrieve total concentration |
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351 | at_i_1d(ji) = a_i_1d(ji) |
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352 | END IF |
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353 | END DO |
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354 | ! |
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355 | END SUBROUTINE ice_thd_mono |
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356 | |
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357 | |
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358 | SUBROUTINE ice_thd_1d2d( kl, kn ) |
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359 | !!----------------------------------------------------------------------- |
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360 | !! *** ROUTINE ice_thd_1d2d *** |
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361 | !! |
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362 | !! ** Purpose : move arrays from 1d to 2d and the reverse |
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363 | !!----------------------------------------------------------------------- |
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364 | INTEGER, INTENT(in) :: kl ! index of the ice category |
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365 | INTEGER, INTENT(in) :: kn ! 1= from 2D to 1D ; 2= from 1D to 2D |
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366 | ! |
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367 | INTEGER :: jk ! dummy loop indices |
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368 | !!----------------------------------------------------------------------- |
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369 | ! |
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370 | SELECT CASE( kn ) |
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371 | ! !---------------------! |
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372 | CASE( 1 ) !== from 2D to 1D ==! |
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373 | ! !---------------------! |
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374 | CALL tab_2d_1d( npti, nptidx(1:npti), at_i_1d(1:npti), at_i ) |
---|
375 | CALL tab_2d_1d( npti, nptidx(1:npti), a_i_1d (1:npti), a_i (:,:,kl) ) |
---|
376 | CALL tab_2d_1d( npti, nptidx(1:npti), h_i_1d (1:npti), h_i (:,:,kl) ) |
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377 | CALL tab_2d_1d( npti, nptidx(1:npti), h_s_1d (1:npti), h_s (:,:,kl) ) |
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378 | CALL tab_2d_1d( npti, nptidx(1:npti), t_su_1d(1:npti), t_su(:,:,kl) ) |
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379 | CALL tab_2d_1d( npti, nptidx(1:npti), s_i_1d (1:npti), s_i (:,:,kl) ) |
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380 | DO jk = 1, nlay_s |
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381 | CALL tab_2d_1d( npti, nptidx(1:npti), t_s_1d(1:npti,jk), t_s(:,:,jk,kl) ) |
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382 | CALL tab_2d_1d( npti, nptidx(1:npti), e_s_1d(1:npti,jk), e_s(:,:,jk,kl) ) |
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383 | END DO |
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384 | DO jk = 1, nlay_i |
---|
385 | CALL tab_2d_1d( npti, nptidx(1:npti), t_i_1d (1:npti,jk), t_i (:,:,jk,kl) ) |
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386 | CALL tab_2d_1d( npti, nptidx(1:npti), e_i_1d (1:npti,jk), e_i (:,:,jk,kl) ) |
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387 | CALL tab_2d_1d( npti, nptidx(1:npti), sz_i_1d(1:npti,jk), sz_i(:,:,jk,kl) ) |
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388 | END DO |
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389 | ! |
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390 | CALL tab_2d_1d( npti, nptidx(1:npti), qprec_ice_1d (1:npti), qprec_ice ) |
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391 | CALL tab_2d_1d( npti, nptidx(1:npti), qsr_ice_1d (1:npti), qsr_ice (:,:,kl) ) |
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392 | CALL tab_2d_1d( npti, nptidx(1:npti), qns_ice_1d (1:npti), qns_ice (:,:,kl) ) |
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393 | CALL tab_2d_1d( npti, nptidx(1:npti), evap_ice_1d (1:npti), evap_ice(:,:,kl) ) |
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394 | CALL tab_2d_1d( npti, nptidx(1:npti), dqns_ice_1d (1:npti), dqns_ice(:,:,kl) ) |
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395 | CALL tab_2d_1d( npti, nptidx(1:npti), t_bo_1d (1:npti), t_bo ) |
---|
396 | CALL tab_2d_1d( npti, nptidx(1:npti), sprecip_1d (1:npti), sprecip ) |
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397 | CALL tab_2d_1d( npti, nptidx(1:npti), qsb_ice_bot_1d(1:npti), qsb_ice_bot ) |
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398 | CALL tab_2d_1d( npti, nptidx(1:npti), fhld_1d (1:npti), fhld ) |
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399 | |
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400 | CALL tab_2d_1d( npti, nptidx(1:npti), qml_ice_1d (1:npti), qml_ice (:,:,kl) ) |
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401 | CALL tab_2d_1d( npti, nptidx(1:npti), qcn_ice_1d (1:npti), qcn_ice (:,:,kl) ) |
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402 | CALL tab_2d_1d( npti, nptidx(1:npti), qtr_ice_top_1d(1:npti), qtr_ice_top(:,:,kl) ) |
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403 | ! |
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404 | CALL tab_2d_1d( npti, nptidx(1:npti), wfx_snw_sni_1d(1:npti), wfx_snw_sni ) |
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405 | CALL tab_2d_1d( npti, nptidx(1:npti), wfx_snw_sum_1d(1:npti), wfx_snw_sum ) |
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406 | CALL tab_2d_1d( npti, nptidx(1:npti), wfx_sub_1d (1:npti), wfx_sub ) |
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407 | CALL tab_2d_1d( npti, nptidx(1:npti), wfx_snw_sub_1d(1:npti), wfx_snw_sub ) |
---|
408 | CALL tab_2d_1d( npti, nptidx(1:npti), wfx_ice_sub_1d(1:npti), wfx_ice_sub ) |
---|
409 | CALL tab_2d_1d( npti, nptidx(1:npti), wfx_err_sub_1d(1:npti), wfx_err_sub ) |
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410 | ! |
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411 | CALL tab_2d_1d( npti, nptidx(1:npti), wfx_bog_1d (1:npti), wfx_bog ) |
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412 | CALL tab_2d_1d( npti, nptidx(1:npti), wfx_bom_1d (1:npti), wfx_bom ) |
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413 | CALL tab_2d_1d( npti, nptidx(1:npti), wfx_sum_1d (1:npti), wfx_sum ) |
---|
414 | CALL tab_2d_1d( npti, nptidx(1:npti), wfx_sni_1d (1:npti), wfx_sni ) |
---|
415 | CALL tab_2d_1d( npti, nptidx(1:npti), wfx_res_1d (1:npti), wfx_res ) |
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416 | CALL tab_2d_1d( npti, nptidx(1:npti), wfx_spr_1d (1:npti), wfx_spr ) |
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417 | CALL tab_2d_1d( npti, nptidx(1:npti), wfx_lam_1d (1:npti), wfx_lam ) |
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418 | ! |
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419 | CALL tab_2d_1d( npti, nptidx(1:npti), sfx_bog_1d (1:npti), sfx_bog ) |
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420 | CALL tab_2d_1d( npti, nptidx(1:npti), sfx_bom_1d (1:npti), sfx_bom ) |
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421 | CALL tab_2d_1d( npti, nptidx(1:npti), sfx_sum_1d (1:npti), sfx_sum ) |
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422 | CALL tab_2d_1d( npti, nptidx(1:npti), sfx_sni_1d (1:npti), sfx_sni ) |
---|
423 | CALL tab_2d_1d( npti, nptidx(1:npti), sfx_bri_1d (1:npti), sfx_bri ) |
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424 | CALL tab_2d_1d( npti, nptidx(1:npti), sfx_res_1d (1:npti), sfx_res ) |
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425 | CALL tab_2d_1d( npti, nptidx(1:npti), sfx_sub_1d (1:npti), sfx_sub ) |
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426 | CALL tab_2d_1d( npti, nptidx(1:npti), sfx_lam_1d (1:npti), sfx_lam ) |
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427 | ! |
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428 | CALL tab_2d_1d( npti, nptidx(1:npti), hfx_thd_1d (1:npti), hfx_thd ) |
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429 | CALL tab_2d_1d( npti, nptidx(1:npti), hfx_spr_1d (1:npti), hfx_spr ) |
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430 | CALL tab_2d_1d( npti, nptidx(1:npti), hfx_sum_1d (1:npti), hfx_sum ) |
---|
431 | CALL tab_2d_1d( npti, nptidx(1:npti), hfx_bom_1d (1:npti), hfx_bom ) |
---|
432 | CALL tab_2d_1d( npti, nptidx(1:npti), hfx_bog_1d (1:npti), hfx_bog ) |
---|
433 | CALL tab_2d_1d( npti, nptidx(1:npti), hfx_dif_1d (1:npti), hfx_dif ) |
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434 | CALL tab_2d_1d( npti, nptidx(1:npti), hfx_opw_1d (1:npti), hfx_opw ) |
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435 | CALL tab_2d_1d( npti, nptidx(1:npti), hfx_snw_1d (1:npti), hfx_snw ) |
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436 | CALL tab_2d_1d( npti, nptidx(1:npti), hfx_sub_1d (1:npti), hfx_sub ) |
---|
437 | CALL tab_2d_1d( npti, nptidx(1:npti), hfx_res_1d (1:npti), hfx_res ) |
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438 | CALL tab_2d_1d( npti, nptidx(1:npti), hfx_err_dif_1d(1:npti), hfx_err_dif ) |
---|
439 | ! |
---|
440 | ! ocean surface fields |
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441 | CALL tab_2d_1d( npti, nptidx(1:npti), sst_1d(1:npti), sst_m ) |
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442 | CALL tab_2d_1d( npti, nptidx(1:npti), sss_1d(1:npti), sss_m ) |
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443 | CALL tab_2d_1d( npti, nptidx(1:npti), frq_m_1d(1:npti), frq_m ) |
---|
444 | ! |
---|
445 | ! to update ice age |
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446 | CALL tab_2d_1d( npti, nptidx(1:npti), o_i_1d (1:npti), o_i (:,:,kl) ) |
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447 | CALL tab_2d_1d( npti, nptidx(1:npti), oa_i_1d(1:npti), oa_i(:,:,kl) ) |
---|
448 | ! |
---|
449 | ! --- Change units of e_i, e_s from J/m2 to J/m3 --- ! |
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450 | DO jk = 1, nlay_i |
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451 | WHERE( h_i_1d(1:npti)>0._wp ) e_i_1d(1:npti,jk) = e_i_1d(1:npti,jk) / (h_i_1d(1:npti) * a_i_1d(1:npti)) * nlay_i |
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452 | END DO |
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453 | DO jk = 1, nlay_s |
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454 | WHERE( h_s_1d(1:npti)>0._wp ) e_s_1d(1:npti,jk) = e_s_1d(1:npti,jk) / (h_s_1d(1:npti) * a_i_1d(1:npti)) * nlay_s |
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455 | END DO |
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456 | ! |
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457 | ! !---------------------! |
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458 | CASE( 2 ) !== from 1D to 2D ==! |
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459 | ! !---------------------! |
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460 | ! --- Change units of e_i, e_s from J/m3 to J/m2 --- ! |
---|
461 | DO jk = 1, nlay_i |
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462 | e_i_1d(1:npti,jk) = e_i_1d(1:npti,jk) * h_i_1d(1:npti) * a_i_1d(1:npti) * r1_nlay_i |
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463 | END DO |
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464 | DO jk = 1, nlay_s |
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465 | e_s_1d(1:npti,jk) = e_s_1d(1:npti,jk) * h_s_1d(1:npti) * a_i_1d(1:npti) * r1_nlay_s |
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466 | END DO |
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467 | ! |
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468 | ! Change thickness to volume (replaces routine ice_var_eqv2glo) |
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469 | v_i_1d (1:npti) = h_i_1d (1:npti) * a_i_1d (1:npti) |
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470 | v_s_1d (1:npti) = h_s_1d (1:npti) * a_i_1d (1:npti) |
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471 | sv_i_1d(1:npti) = s_i_1d (1:npti) * v_i_1d (1:npti) |
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472 | oa_i_1d(1:npti) = o_i_1d (1:npti) * a_i_1d (1:npti) |
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473 | |
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474 | CALL tab_1d_2d( npti, nptidx(1:npti), at_i_1d(1:npti), at_i ) |
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475 | CALL tab_1d_2d( npti, nptidx(1:npti), a_i_1d (1:npti), a_i (:,:,kl) ) |
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476 | CALL tab_1d_2d( npti, nptidx(1:npti), h_i_1d (1:npti), h_i (:,:,kl) ) |
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477 | CALL tab_1d_2d( npti, nptidx(1:npti), h_s_1d (1:npti), h_s (:,:,kl) ) |
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478 | CALL tab_1d_2d( npti, nptidx(1:npti), t_su_1d(1:npti), t_su(:,:,kl) ) |
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479 | CALL tab_1d_2d( npti, nptidx(1:npti), s_i_1d (1:npti), s_i (:,:,kl) ) |
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480 | DO jk = 1, nlay_s |
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481 | CALL tab_1d_2d( npti, nptidx(1:npti), t_s_1d(1:npti,jk), t_s(:,:,jk,kl) ) |
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482 | CALL tab_1d_2d( npti, nptidx(1:npti), e_s_1d(1:npti,jk), e_s(:,:,jk,kl) ) |
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483 | END DO |
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484 | DO jk = 1, nlay_i |
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485 | CALL tab_1d_2d( npti, nptidx(1:npti), t_i_1d (1:npti,jk), t_i (:,:,jk,kl) ) |
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486 | CALL tab_1d_2d( npti, nptidx(1:npti), e_i_1d (1:npti,jk), e_i (:,:,jk,kl) ) |
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487 | CALL tab_1d_2d( npti, nptidx(1:npti), sz_i_1d(1:npti,jk), sz_i(:,:,jk,kl) ) |
---|
488 | END DO |
---|
489 | ! |
---|
490 | CALL tab_1d_2d( npti, nptidx(1:npti), wfx_snw_sni_1d(1:npti), wfx_snw_sni ) |
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491 | CALL tab_1d_2d( npti, nptidx(1:npti), wfx_snw_sum_1d(1:npti), wfx_snw_sum ) |
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492 | CALL tab_1d_2d( npti, nptidx(1:npti), wfx_sub_1d (1:npti), wfx_sub ) |
---|
493 | CALL tab_1d_2d( npti, nptidx(1:npti), wfx_snw_sub_1d(1:npti), wfx_snw_sub ) |
---|
494 | CALL tab_1d_2d( npti, nptidx(1:npti), wfx_ice_sub_1d(1:npti), wfx_ice_sub ) |
---|
495 | CALL tab_1d_2d( npti, nptidx(1:npti), wfx_err_sub_1d(1:npti), wfx_err_sub ) |
---|
496 | ! |
---|
497 | CALL tab_1d_2d( npti, nptidx(1:npti), wfx_bog_1d (1:npti), wfx_bog ) |
---|
498 | CALL tab_1d_2d( npti, nptidx(1:npti), wfx_bom_1d (1:npti), wfx_bom ) |
---|
499 | CALL tab_1d_2d( npti, nptidx(1:npti), wfx_sum_1d (1:npti), wfx_sum ) |
---|
500 | CALL tab_1d_2d( npti, nptidx(1:npti), wfx_sni_1d (1:npti), wfx_sni ) |
---|
501 | CALL tab_1d_2d( npti, nptidx(1:npti), wfx_res_1d (1:npti), wfx_res ) |
---|
502 | CALL tab_1d_2d( npti, nptidx(1:npti), wfx_spr_1d (1:npti), wfx_spr ) |
---|
503 | CALL tab_1d_2d( npti, nptidx(1:npti), wfx_lam_1d (1:npti), wfx_lam ) |
---|
504 | ! |
---|
505 | CALL tab_1d_2d( npti, nptidx(1:npti), sfx_bog_1d (1:npti), sfx_bog ) |
---|
506 | CALL tab_1d_2d( npti, nptidx(1:npti), sfx_bom_1d (1:npti), sfx_bom ) |
---|
507 | CALL tab_1d_2d( npti, nptidx(1:npti), sfx_sum_1d (1:npti), sfx_sum ) |
---|
508 | CALL tab_1d_2d( npti, nptidx(1:npti), sfx_sni_1d (1:npti), sfx_sni ) |
---|
509 | CALL tab_1d_2d( npti, nptidx(1:npti), sfx_bri_1d (1:npti), sfx_bri ) |
---|
510 | CALL tab_1d_2d( npti, nptidx(1:npti), sfx_res_1d (1:npti), sfx_res ) |
---|
511 | CALL tab_1d_2d( npti, nptidx(1:npti), sfx_sub_1d (1:npti), sfx_sub ) |
---|
512 | CALL tab_1d_2d( npti, nptidx(1:npti), sfx_lam_1d (1:npti), sfx_lam ) |
---|
513 | ! |
---|
514 | CALL tab_1d_2d( npti, nptidx(1:npti), hfx_thd_1d (1:npti), hfx_thd ) |
---|
515 | CALL tab_1d_2d( npti, nptidx(1:npti), hfx_spr_1d (1:npti), hfx_spr ) |
---|
516 | CALL tab_1d_2d( npti, nptidx(1:npti), hfx_sum_1d (1:npti), hfx_sum ) |
---|
517 | CALL tab_1d_2d( npti, nptidx(1:npti), hfx_bom_1d (1:npti), hfx_bom ) |
---|
518 | CALL tab_1d_2d( npti, nptidx(1:npti), hfx_bog_1d (1:npti), hfx_bog ) |
---|
519 | CALL tab_1d_2d( npti, nptidx(1:npti), hfx_dif_1d (1:npti), hfx_dif ) |
---|
520 | CALL tab_1d_2d( npti, nptidx(1:npti), hfx_opw_1d (1:npti), hfx_opw ) |
---|
521 | CALL tab_1d_2d( npti, nptidx(1:npti), hfx_snw_1d (1:npti), hfx_snw ) |
---|
522 | CALL tab_1d_2d( npti, nptidx(1:npti), hfx_sub_1d (1:npti), hfx_sub ) |
---|
523 | CALL tab_1d_2d( npti, nptidx(1:npti), hfx_res_1d (1:npti), hfx_res ) |
---|
524 | CALL tab_1d_2d( npti, nptidx(1:npti), hfx_err_dif_1d(1:npti), hfx_err_dif ) |
---|
525 | ! |
---|
526 | CALL tab_1d_2d( npti, nptidx(1:npti), qns_ice_1d (1:npti), qns_ice (:,:,kl) ) |
---|
527 | CALL tab_1d_2d( npti, nptidx(1:npti), qtr_ice_bot_1d(1:npti), qtr_ice_bot(:,:,kl) ) |
---|
528 | ! effective conductivity and 1st layer temperature (ln_cndflx=T) |
---|
529 | CALL tab_1d_2d( npti, nptidx(1:npti), cnd_ice_1d(1:npti), cnd_ice(:,:,kl) ) |
---|
530 | CALL tab_1d_2d( npti, nptidx(1:npti), t1_ice_1d (1:npti), t1_ice (:,:,kl) ) |
---|
531 | ! Melt ponds |
---|
532 | CALL tab_1d_2d( npti, nptidx(1:npti), dh_i_sum (1:npti) , dh_i_sum_2d(:,:,kl) ) |
---|
533 | CALL tab_1d_2d( npti, nptidx(1:npti), dh_s_mlt (1:npti) , dh_s_mlt_2d(:,:,kl) ) |
---|
534 | ! SIMIP diagnostics |
---|
535 | CALL tab_1d_2d( npti, nptidx(1:npti), t_si_1d (1:npti), t_si (:,:,kl) ) |
---|
536 | CALL tab_1d_2d( npti, nptidx(1:npti), qcn_ice_bot_1d(1:npti), qcn_ice_bot(:,:,kl) ) |
---|
537 | CALL tab_1d_2d( npti, nptidx(1:npti), qcn_ice_top_1d(1:npti), qcn_ice_top(:,:,kl) ) |
---|
538 | CALL tab_1d_2d( npti, nptidx(1:npti), qml_ice_1d (1:npti), qml_ice (:,:,kl) ) |
---|
539 | ! extensive variables |
---|
540 | CALL tab_1d_2d( npti, nptidx(1:npti), v_i_1d (1:npti), v_i (:,:,kl) ) |
---|
541 | CALL tab_1d_2d( npti, nptidx(1:npti), v_s_1d (1:npti), v_s (:,:,kl) ) |
---|
542 | CALL tab_1d_2d( npti, nptidx(1:npti), sv_i_1d(1:npti), sv_i(:,:,kl) ) |
---|
543 | CALL tab_1d_2d( npti, nptidx(1:npti), oa_i_1d(1:npti), oa_i(:,:,kl) ) |
---|
544 | ! check convergence of heat diffusion scheme |
---|
545 | IF( ln_zdf_chkcvg ) THEN |
---|
546 | CALL tab_1d_2d( npti, nptidx(1:npti), tice_cvgerr_1d(1:npti), ztice_cvgerr(:,:,kl) ) |
---|
547 | CALL tab_1d_2d( npti, nptidx(1:npti), tice_cvgstp_1d(1:npti), ztice_cvgstp(:,:,kl) ) |
---|
548 | ENDIF |
---|
549 | ! |
---|
550 | END SELECT |
---|
551 | ! |
---|
552 | END SUBROUTINE ice_thd_1d2d |
---|
553 | |
---|
554 | |
---|
555 | SUBROUTINE ice_thd_init |
---|
556 | !!------------------------------------------------------------------- |
---|
557 | !! *** ROUTINE ice_thd_init *** |
---|
558 | !! |
---|
559 | !! ** Purpose : Physical constants and parameters associated with |
---|
560 | !! ice thermodynamics |
---|
561 | !! |
---|
562 | !! ** Method : Read the namthd namelist and check the parameters |
---|
563 | !! called at the first timestep (nit000) |
---|
564 | !! |
---|
565 | !! ** input : Namelist namthd |
---|
566 | !!------------------------------------------------------------------- |
---|
567 | INTEGER :: ios ! Local integer output status for namelist read |
---|
568 | !! |
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569 | NAMELIST/namthd/ ln_icedH, ln_icedA, ln_icedO, ln_icedS, ln_leadhfx |
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570 | !!------------------------------------------------------------------- |
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571 | ! |
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572 | READ ( numnam_ice_ref, namthd, IOSTAT = ios, ERR = 901) |
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573 | 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namthd in reference namelist' ) |
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574 | READ ( numnam_ice_cfg, namthd, IOSTAT = ios, ERR = 902 ) |
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575 | 902 IF( ios > 0 ) CALL ctl_nam ( ios , 'namthd in configuration namelist' ) |
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576 | IF(lwm) WRITE( numoni, namthd ) |
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577 | ! |
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578 | IF(lwp) THEN ! control print |
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579 | WRITE(numout,*) |
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580 | WRITE(numout,*) 'ice_thd_init: Ice Thermodynamics' |
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581 | WRITE(numout,*) '~~~~~~~~~~~~' |
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582 | WRITE(numout,*) ' Namelist namthd:' |
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583 | WRITE(numout,*) ' activate ice thick change from top/bot (T) or not (F) ln_icedH = ', ln_icedH |
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584 | WRITE(numout,*) ' activate lateral melting (T) or not (F) ln_icedA = ', ln_icedA |
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585 | WRITE(numout,*) ' activate ice growth in open-water (T) or not (F) ln_icedO = ', ln_icedO |
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586 | WRITE(numout,*) ' activate gravity drainage and flushing (T) or not (F) ln_icedS = ', ln_icedS |
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587 | WRITE(numout,*) ' heat in the leads is used to melt sea-ice before warming the ocean ln_leadhfx = ', ln_leadhfx |
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588 | ENDIF |
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589 | ! |
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590 | CALL ice_thd_zdf_init ! set ice heat diffusion parameters |
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591 | IF( ln_icedA ) CALL ice_thd_da_init ! set ice lateral melting parameters |
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592 | IF( ln_icedO ) CALL ice_thd_do_init ! set ice growth in open water parameters |
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593 | CALL ice_thd_sal_init ! set ice salinity parameters |
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594 | CALL ice_thd_pnd_init ! set melt ponds parameters |
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595 | ! |
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596 | END SUBROUTINE ice_thd_init |
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597 | |
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598 | #else |
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599 | !!---------------------------------------------------------------------- |
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600 | !! Default option Dummy module NO SI3 sea-ice model |
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601 | !!---------------------------------------------------------------------- |
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602 | #endif |
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603 | |
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604 | !!====================================================================== |
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605 | END MODULE icethd |
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