1 | MODULE isf_oce |
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2 | !!====================================================================== |
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3 | !! *** MODULE sbcisf *** |
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4 | !! Surface module : compute iceshelf melt and heat flux |
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5 | !!====================================================================== |
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6 | !! History : 3.2 ! 2011-02 (C.Harris ) Original code isf cav |
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7 | !! X.X ! 2006-02 (C. Wang ) Original code bg03 |
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8 | !! 3.4 ! 2013-03 (P. Mathiot) Merging + parametrization |
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9 | !! 4.1 ! 2019-09 (P. Mathiot) Split param/explicit ice shelf and re-organisation |
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10 | !!---------------------------------------------------------------------- |
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11 | |
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12 | !!---------------------------------------------------------------------- |
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13 | !! isf : define and allocate ice shelf variables |
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14 | !!---------------------------------------------------------------------- |
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15 | |
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16 | USE par_oce , ONLY: jpi, jpj, jpk |
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17 | USE in_out_manager, ONLY: wp, jpts ! I/O manager |
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18 | USE lib_mpp , ONLY: ctl_stop, mpp_sum ! MPP library |
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19 | USE fldread ! read input fields |
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20 | |
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21 | IMPLICIT NONE |
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22 | |
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23 | PRIVATE |
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24 | |
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25 | PUBLIC isf_alloc, isf_alloc_par, isf_alloc_cav, isf_alloc_cpl, isf_dealloc_cpl |
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26 | ! |
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27 | !------------------------------------------------------- |
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28 | ! 0 : namelist parameter |
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29 | !------------------------------------------------------- |
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30 | ! |
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31 | ! 0.1 -------- ice shelf cavity parameter -------------- |
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32 | CHARACTER(LEN=256), PUBLIC :: cn_isfdir |
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33 | LOGICAL , PUBLIC :: ln_isf |
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34 | LOGICAL , PUBLIC :: ln_isfdebug |
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35 | ! |
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36 | ! 0.2 -------- ice shelf cavity opened namelist parameter ------------- |
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37 | LOGICAL , PUBLIC :: ln_isfcav_mlt !: logical for the use of ice shelf parametrisation |
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38 | REAL(wp) , PUBLIC :: rn_gammat0 !: temperature exchange coeficient [] |
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39 | REAL(wp) , PUBLIC :: rn_gammas0 !: salinity exchange coeficient [] |
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40 | REAL(wp) , PUBLIC :: rn_htbl !: Losch top boundary layer thickness [m] |
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41 | REAL(wp) , PUBLIC :: rn_isfload_T !: |
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42 | REAL(wp) , PUBLIC :: rn_isfload_S !: |
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43 | CHARACTER(LEN=256), PUBLIC :: cn_gammablk !: gamma formulation |
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44 | CHARACTER(LEN=256), PUBLIC :: cn_isfcav_mlt !: melt formulation (cavity/param) |
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45 | CHARACTER(LEN=256), PUBLIC :: cn_isfload !: ice shelf load computation method |
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46 | TYPE(FLD_N) , PUBLIC :: sn_isfcav_fwf !: information about the isf melting file to be read |
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47 | ! |
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48 | ! 0.3 -------- ice shelf cavity parametrised namelist parameter ------------- |
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49 | LOGICAL , PUBLIC :: ln_isfpar_mlt !: logical for the computation of melt inside the cavity |
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50 | CHARACTER(LEN=256), PUBLIC :: cn_isfpar_mlt !: melt formulation (cavity/param) |
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51 | TYPE(FLD_N) , PUBLIC :: sn_isfpar_fwf !: information about the isf melting file to be read |
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52 | TYPE(FLD_N) , PUBLIC :: sn_isfpar_zmax !: information about the grounding line depth file to be read |
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53 | TYPE(FLD_N) , PUBLIC :: sn_isfpar_zmin !: information about the calving line depth file to be read |
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54 | TYPE(FLD_N) , PUBLIC :: sn_isfpar_Leff !: information about the effective length file to be read |
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55 | ! |
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56 | ! 0.4 -------- coupling namelist parameter ------------- |
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57 | LOGICAL, PUBLIC :: ln_isfcpl !: |
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58 | LOGICAL, PUBLIC :: ln_isfcpl_cons !: |
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59 | INTEGER, PUBLIC :: nn_drown !: |
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60 | ! |
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61 | !------------------------------------------------------- |
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62 | ! 1 : ice shelf parameter |
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63 | !------------------------------------------------------- |
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64 | ! |
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65 | REAL(wp), PARAMETER, PUBLIC :: rLfusisf = 0.334e6_wp !: latent heat of fusion of ice shelf [J/kg] |
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66 | REAL(wp), PARAMETER, PUBLIC :: rcpisf = 2000.0_wp !: specific heat of ice shelf [J/kg/K] |
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67 | REAL(wp), PARAMETER, PUBLIC :: rkappa = 1.54e-6_wp !: heat diffusivity through the ice-shelf [m2/s] |
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68 | REAL(wp), PARAMETER, PUBLIC :: rhoisf = 920.0_wp !: volumic mass of ice shelf [kg/m3] |
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69 | REAL(wp), PARAMETER, PUBLIC :: rtsurf = -20.0 !: surface temperature [C] |
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70 | ! |
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71 | !------------------------------------------------------- |
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72 | ! 2 : ice shelf global variables |
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73 | !------------------------------------------------------- |
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74 | ! |
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75 | ! 2.1 -------- ice shelf cavity parameter -------------- |
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76 | LOGICAL , PUBLIC :: l_isfoasis |
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77 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: risfload !: ice shelf load |
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78 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fwfisf_oasis |
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79 | ! |
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80 | ! 2.2 -------- ice shelf cavity melt namelist parameter ------------- |
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81 | INTEGER , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: mskisf_cav !: |
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82 | INTEGER , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: misfkt_cav , misfkb_cav !: |
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83 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rhisf_tbl_cav, rfrac_tbl_cav !: |
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84 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fwfisf_cav , fwfisf_cav_b !: before and now net fwf from the ice shelf [kg/m2/s] |
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85 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: risf_cav_tsc , risf_cav_tsc_b !: before and now T & S isf contents [K.m/s & PSU.m/s] |
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86 | TYPE(FLD), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: sf_isfcav_fwf !: |
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87 | ! |
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88 | REAL(wp) , PUBLIC :: risf_lamb1, risf_lamb2, risf_lamb3 ! freezing point linearization coeficient |
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89 | ! |
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90 | ! 2.3 -------- ice shelf param. melt namelist parameter ------------- |
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91 | INTEGER , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: mskisf_par !: |
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92 | INTEGER , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: misfkt_par , misfkb_par !: |
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93 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rhisf_tbl_par, rfrac_tbl_par !: |
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94 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fwfisf_par , fwfisf_par_b !: before and now net fwf from the ice shelf [kg/m2/s] |
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95 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: risf_par_tsc , risf_par_tsc_b !: before and now T & S isf contents [K.m/s & PSU.m/s] |
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96 | TYPE(FLD), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: sf_isfpar_fwf !: |
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97 | ! |
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98 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rhisf0_tbl_par !: thickness of tbl (initial value) [m] |
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99 | REAL(wp) , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: risfLeff !: |
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100 | ! |
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101 | ! 2.4 -------- coupling namelist parameter ------------- |
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102 | INTEGER , PUBLIC :: nstp_iscpl !: |
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103 | REAL(wp), PUBLIC :: rdt_iscpl !: |
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104 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: risfcpl_ssh, risfcpl_cons_ssh, risfcpl_cons_ssh_b !: |
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105 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: risfcpl_vol, risfcpl_cons_vol, risfcpl_cons_vol_b !: |
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106 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: risfcpl_tsc, risfcpl_cons_tsc, risfcpl_cons_tsc_b !: |
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107 | ! |
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108 | !!---------------------------------------------------------------------- |
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109 | !! NEMO/OCE 4.0 , NEMO Consortium (2018) |
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110 | !! $Id: sbcisf.F90 10536 2019-01-16 19:21:09Z mathiot $ |
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111 | !! Software governed by the CeCILL license (see ./LICENSE) |
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112 | !!---------------------------------------------------------------------- |
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113 | CONTAINS |
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114 | |
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115 | SUBROUTINE isf_alloc_par() |
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116 | !!--------------------------------------------------------------------- |
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117 | !! *** ROUTINE isf_alloc_par *** |
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118 | !! |
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119 | !! ** Purpose : |
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120 | !! |
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121 | !! ** Method : |
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122 | !! |
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123 | !!---------------------------------------------------------------------- |
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124 | INTEGER :: ierr, ialloc |
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125 | !!---------------------------------------------------------------------- |
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126 | ierr = 0 ! set to zero if no array to be allocated |
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127 | ! |
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128 | ALLOCATE(risfLeff(jpi,jpj), STAT=ialloc) |
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129 | ierr = ierr + ialloc |
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130 | ! |
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131 | ALLOCATE(misfkt_par(jpi,jpj), misfkb_par(jpi,jpj), STAT=ialloc ) |
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132 | ierr = ierr + ialloc |
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133 | ! |
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134 | ALLOCATE( rfrac_tbl_par(jpi,jpj), STAT=ialloc) |
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135 | ierr = ierr + ialloc |
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136 | ! |
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137 | ALLOCATE( rhisf_tbl_par(jpi,jpj), rhisf0_tbl_par(jpi,jpj), STAT=ialloc) |
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138 | ierr = ierr + ialloc |
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139 | ! |
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140 | ALLOCATE( mskisf_par(jpi,jpj), STAT=ialloc) |
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141 | ierr = ierr + ialloc |
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142 | ! |
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143 | CALL mpp_sum ( 'isf', ierr ) |
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144 | IF( ierr /= 0 ) CALL ctl_stop( 'STOP', 'isf: failed to allocate arrays.' ) |
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145 | ! |
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146 | END SUBROUTINE isf_alloc_par |
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147 | |
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148 | SUBROUTINE isf_alloc_cav() |
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149 | !!--------------------------------------------------------------------- |
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150 | !! *** ROUTINE isf_alloc_cav *** |
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151 | !! |
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152 | !! ** Purpose : |
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153 | !! |
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154 | !! ** Method : |
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155 | !! |
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156 | !!---------------------------------------------------------------------- |
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157 | INTEGER :: ierr, ialloc |
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158 | !!---------------------------------------------------------------------- |
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159 | ierr = 0 ! set to zero if no array to be allocated |
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160 | ! |
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161 | ALLOCATE(misfkt_cav(jpi,jpj), misfkb_cav(jpi,jpj), STAT=ialloc ) |
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162 | ierr = ierr + ialloc |
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163 | ! |
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164 | ALLOCATE( rfrac_tbl_cav(jpi,jpj), STAT=ialloc) |
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165 | ierr = ierr + ialloc |
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166 | ! |
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167 | ALLOCATE( rhisf_tbl_cav(jpi,jpj), STAT=ialloc) |
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168 | ierr = ierr + ialloc |
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169 | ! |
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170 | CALL mpp_sum ( 'isf', ierr ) |
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171 | IF( ierr /= 0 ) CALL ctl_stop( 'STOP', 'isf: failed to allocate arrays.' ) |
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172 | ! |
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173 | END SUBROUTINE isf_alloc_cav |
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174 | |
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175 | SUBROUTINE isf_alloc_cpl() |
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176 | !!--------------------------------------------------------------------- |
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177 | !! *** ROUTINE isf_alloc_cpl *** |
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178 | !! |
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179 | !! ** Purpose : allocate array use for the ice sheet coupling |
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180 | !! |
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181 | !!---------------------------------------------------------------------- |
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182 | INTEGER :: ierr, ialloc |
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183 | !!---------------------------------------------------------------------- |
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184 | ierr = 0 |
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185 | ! |
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186 | ALLOCATE( risfcpl_ssh(jpi,jpj), risfcpl_tsc(jpi,jpj,jpk,jpts), risfcpl_vol(jpi,jpj,jpk), STAT=ialloc ) |
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187 | ierr = ierr + ialloc |
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188 | ! |
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189 | risfcpl_tsc(:,:,:,:) = 0.0 ; risfcpl_vol(:,:,:) = 0.0 ; risfcpl_ssh(:,:) = 0.0 |
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190 | |
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191 | IF ( ln_isfcpl_cons) THEN |
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192 | ALLOCATE( risfcpl_cons_tsc(jpi,jpj,jpk,jpts) , risfcpl_cons_vol(jpi,jpj,jpk) ,risfcpl_cons_ssh(jpi,jpj), STAT=ialloc ) |
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193 | ierr = ierr + ialloc |
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194 | ! |
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195 | risfcpl_cons_tsc(:,:,:,:) = 0.0 ; risfcpl_cons_vol(:,:,:) = 0.0 ; risfcpl_cons_ssh(:,:) = 0.0 |
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196 | ! |
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197 | END IF |
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198 | ! |
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199 | CALL mpp_sum ( 'isf', ierr ) |
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200 | IF( ierr /= 0 ) CALL ctl_stop('STOP','isfcpl: failed to allocate arrays.') |
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201 | ! |
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202 | END SUBROUTINE isf_alloc_cpl |
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203 | |
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204 | SUBROUTINE isf_dealloc_cpl() |
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205 | !!--------------------------------------------------------------------- |
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206 | !! *** ROUTINE isf_dealloc_cpl *** |
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207 | !! |
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208 | !! ** Purpose : de-allocate useless public 3d array used for ice sheet coupling |
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209 | !! |
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210 | !!---------------------------------------------------------------------- |
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211 | INTEGER :: ierr, ialloc |
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212 | !!---------------------------------------------------------------------- |
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213 | ierr = 0 |
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214 | ! |
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215 | DEALLOCATE( risfcpl_ssh, risfcpl_tsc, risfcpl_vol, STAT=ialloc ) |
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216 | ierr = ierr + ialloc |
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217 | ! |
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218 | CALL mpp_sum ( 'isf', ierr ) |
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219 | IF( ierr /= 0 ) CALL ctl_stop('STOP','isfcpl: failed to deallocate arrays.') |
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220 | ! |
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221 | END SUBROUTINE isf_dealloc_cpl |
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222 | |
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223 | SUBROUTINE isf_alloc() |
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224 | !!--------------------------------------------------------------------- |
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225 | !! *** ROUTINE isf_alloc *** |
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226 | !! |
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227 | !! ** Purpose : allocate array used for the ice shelf cavity (cav and par) |
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228 | !! |
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229 | !!---------------------------------------------------------------------- |
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230 | INTEGER :: ierr, ialloc |
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231 | !!---------------------------------------------------------------------- |
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232 | ! |
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233 | ierr = 0 ! set to zero if no array to be allocated |
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234 | ! |
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235 | ALLOCATE(fwfisf_par(jpi,jpj) , fwfisf_par_b(jpi,jpj), & |
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236 | & fwfisf_cav(jpi,jpj) , fwfisf_cav_b(jpi,jpj), & |
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237 | & fwfisf_oasis(jpi,jpj), STAT=ialloc ) |
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238 | ierr = ierr + ialloc |
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239 | ! |
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240 | ALLOCATE(risf_par_tsc(jpi,jpj,jpts), risf_par_tsc_b(jpi,jpj,jpts), STAT=ialloc ) |
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241 | ierr = ierr + ialloc |
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242 | ! |
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243 | ALLOCATE(risf_cav_tsc(jpi,jpj,jpts), risf_cav_tsc_b(jpi,jpj,jpts), STAT=ialloc ) |
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244 | ierr = ierr + ialloc |
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245 | ! |
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246 | ALLOCATE(risfload(jpi,jpj), STAT=ialloc) |
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247 | ierr = ierr + ialloc |
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248 | ! |
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249 | ALLOCATE( mskisf_cav(jpi,jpj), STAT=ialloc) |
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250 | ierr = ierr + ialloc |
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251 | ! |
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252 | CALL mpp_sum ( 'isf', ierr ) |
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253 | IF( ierr /= 0 ) CALL ctl_stop( 'STOP', 'isf: failed to allocate arrays.' ) |
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254 | ! |
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255 | ! initalisation of fwf and tsc array to 0 |
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256 | risfload(:,:) = 0.0_wp |
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257 | fwfisf_oasis(:,:) = 0.0_wp |
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258 | fwfisf_par(:,:) = 0.0_wp ; fwfisf_par_b(:,:) = 0.0_wp |
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259 | fwfisf_cav(:,:) = 0.0_wp ; fwfisf_cav_b(:,:) = 0.0_wp |
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260 | risf_cav_tsc(:,:,:) = 0.0_wp ; risf_cav_tsc_b(:,:,:) = 0.0_wp |
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261 | risf_par_tsc(:,:,:) = 0.0_wp ; risf_par_tsc_b(:,:,:) = 0.0_wp |
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262 | ! |
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263 | |
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264 | END SUBROUTINE isf_alloc |
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265 | |
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266 | END MODULE isf_oce |
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