1 | MODULE thd_ice |
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2 | !!====================================================================== |
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3 | !! *** MODULE thd_ice *** |
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4 | !! LIM sea-ice : Ice thermodynamics in 1D |
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5 | !!===================================================================== |
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6 | !! History : 3.0 ! 2002-11 (C. Ethe) F90: Free form and module |
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7 | !!---------------------------------------------------------------------- |
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8 | USE par_ice ! LIM-3 parameters |
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9 | USE in_out_manager ! I/O manager |
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10 | USE lib_mpp ! MPP library |
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11 | |
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12 | IMPLICIT NONE |
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13 | PRIVATE |
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14 | |
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15 | PUBLIC thd_ice_alloc ! Routine called by nemogcm.F90 |
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16 | |
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17 | !!--------------------------- |
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18 | !! * Share Module variables |
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19 | !!--------------------------- |
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20 | ! !!! ** ice-thermo namelist (namicethd) ** |
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21 | REAL(wp), PUBLIC :: hmelt = -0.15 !: maximum melting at the bottom; active only for one category |
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22 | REAL(wp), PUBLIC :: hicmin = 0.2 !: (REMOVE) |
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23 | REAL(wp), PUBLIC :: hiclim = 0.05 !: minimum ice thickness |
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24 | REAL(wp), PUBLIC :: amax = 0.999 !: maximum lead fraction |
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25 | REAL(wp), PUBLIC :: sbeta = 1.0 !: numerical scheme for diffusion in ice (REMOVE) |
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26 | REAL(wp), PUBLIC :: parlat = 0.0 !: (REMOVE) |
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27 | REAL(wp), PUBLIC :: hakspl = 0.5 !: (REMOVE) |
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28 | REAL(wp), PUBLIC :: hibspl = 0.5 !: (REMOVE) |
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29 | REAL(wp), PUBLIC :: exld = 2.0 !: (REMOVE) |
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30 | REAL(wp), PUBLIC :: hakdif = 1.0 !: (REMOVE) |
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31 | REAL(wp), PUBLIC :: thth = 0.2 !: (REMOVE) |
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32 | REAL(wp), PUBLIC :: hnzst = 0.1 !: thick. of the surf. layer in temp. comp. |
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33 | REAL(wp), PUBLIC :: parsub = 1.0 !: switch for snow sublimation or not |
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34 | REAL(wp), PUBLIC :: alphs = 1.0 !: coef. for snow density when snow-ice formation |
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35 | REAL(wp), PUBLIC :: fraz_swi= 1.0 !: use of frazil ice collection in function of wind (1.0) or not (0.0) |
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36 | REAL(wp), PUBLIC :: maxfrazb= 0.7 !: maximum portion of frazil ice collecting at the ice bottom |
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37 | REAL(wp), PUBLIC :: vfrazb = 0.41667 !: threshold drift speed for collection of bottom frazil ice |
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38 | REAL(wp), PUBLIC :: Cfrazb = 5.0 !: squeezing coefficient for collection of bottom frazil ice |
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39 | |
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40 | REAL(wp), PUBLIC, DIMENSION(2) :: hiccrit = (/0.3,0.3/) !: ice th. for lateral accretion in the NH (SH) (m) |
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41 | |
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42 | !!----------------------------- |
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43 | !! * Share 1D Module variables |
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44 | !!----------------------------- |
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45 | !: In ice thermodynamics, to spare memory, the vectors are folded |
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46 | !: from 1D to 2D vectors. The following variables, with ending _1d (or _b) |
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47 | !: are the variables corresponding to 2d vectors |
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48 | |
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49 | INTEGER , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: npb !: number of points where computations has to be done |
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50 | INTEGER , PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: npac !: correspondance between points (lateral accretion) |
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51 | |
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52 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: qldif_1d !: <==> the 2D qldif |
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53 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: qcmif_1d !: <==> the 2D qcmif |
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54 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: fstbif_1d !: <==> the 2D fstric |
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55 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: fltbif_1d !: <==> the 2D ffltbif |
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56 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: fscbq_1d !: <==> the 2D fscmcbq |
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57 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: qsr_ice_1d !: <==> the 2D qsr_ice |
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58 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: fr1_i0_1d !: <==> the 2D fr1_i0 |
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59 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: fr2_i0_1d !: <==> the 2D fr2_i0 |
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60 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: qnsr_ice_1d !: <==> the 2D qns_ice |
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61 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: qfvbq_1d !: <==> the 2D qfvbq |
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62 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: t_bo_b !: <==> the 2D t_bo |
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63 | |
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64 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: sprecip_1d !: <==> the 2D sprecip |
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65 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: frld_1d !: <==> the 2D frld |
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66 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: at_i_b !: <==> the 2D frld |
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67 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: fbif_1d !: <==> the 2D fbif |
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68 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: rdmicif_1d !: <==> the 2D rdmicif |
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69 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: rdmsnif_1d !: <==> the 2D rdmsnif |
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70 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: qlbbq_1d !: <==> the 2D qlbsbq |
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71 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dmgwi_1d !: <==> the 2D dmgwi |
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72 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dvsbq_1d !: <==> the 2D rdvosif |
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73 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dvbbq_1d !: <==> the 2D rdvobif |
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74 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dvlbq_1d !: <==> the 2D rdvolif |
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75 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dvnbq_1d !: <==> the 2D rdvolif |
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76 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dqns_ice_1d !: <==> the 2D dqns_ice |
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77 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: qla_ice_1d !: <==> the 2D qla_ice |
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78 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dqla_ice_1d !: <==> the 2D dqla_ice |
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79 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: tatm_ice_1d !: <==> the 2D tatm_ice |
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80 | ! ! to reintegrate longwave flux inside the ice thermodynamics |
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81 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: fsup !: Energy flux sent from bottom to lateral ablation if |dhb|> 0.15 m |
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82 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: focea !: Remaining energy in case of total ablation |
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83 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: i0 !: fraction of radiation transmitted to the ice |
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84 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: old_ht_i_b !: Ice thickness at the beginnning of the time step [m] |
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85 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: old_ht_s_b !: Snow thickness at the beginning of the time step [m] |
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86 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: fsbri_1d !: Salt flux due to brine drainage |
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87 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: fhbri_1d !: Heat flux due to brine drainage |
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88 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: fseqv_1d !: Equivalent Salt flux due to ice growth/decay |
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89 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dsm_i_fl_1d !: Ice salinity variations due to flushing |
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90 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dsm_i_gd_1d !: Ice salinity variations due to gravity drainage |
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91 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dsm_i_se_1d !: Ice salinity variations due to basal salt entrapment |
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92 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dsm_i_si_1d !: Ice salinity variations due to lateral accretion |
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93 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: hicol_b !: Ice collection thickness accumulated in fleads |
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94 | |
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95 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: t_su_b !: <==> the 2D t_su |
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96 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: a_i_b !: <==> the 2D a_i |
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97 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: ht_i_b !: <==> the 2D ht_s |
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98 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: ht_s_b !: <==> the 2D ht_i |
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99 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: fc_su !: Surface Conduction flux |
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100 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: fc_bo_i !: Bottom Conduction flux |
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101 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dh_s_tot !: Snow accretion/ablation [m] |
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102 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dh_i_surf !: Ice surface accretion/ablation [m] |
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103 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dh_i_bott !: Ice bottom accretion/ablation [m] |
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104 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: dh_snowice !: Snow ice formation [m of ice] |
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105 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: sm_i_b !: Ice bulk salinity [ppt] |
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106 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: s_i_new !: Salinity of new ice at the bottom |
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107 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: s_snowice !: Salinity of new snow ice on top of the ice |
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108 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: o_i_b !: Ice age [days] |
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109 | |
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110 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: t_s_b !: corresponding to the 2D var t_s |
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111 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: t_i_b !: corresponding to the 2D var t_i |
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112 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: s_i_b !: profiled ice salinity |
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113 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: q_i_b !: Ice enthalpy per unit volume |
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114 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: q_s_b !: Snow enthalpy per unit volume |
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115 | |
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116 | ! Clean the following ... |
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117 | ! These variables are coded for conservation checks |
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118 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qt_i_in !: ice energy summed over categories (initial) |
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119 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qt_i_fin !: ice energy summed over categories (final) |
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120 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qt_s_in, qt_s_fin !: snow energy summed over categories |
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121 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: dq_i, sum_fluxq !: increment of energy, sum of fluxes |
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122 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fatm, foce !: atmospheric, oceanic, heat flux |
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123 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: cons_error, surf_error !: conservation, surface error |
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124 | |
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125 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: q_i_layer_in !: goes to trash |
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126 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: q_i_layer_fin !: goes to trash |
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127 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: dq_i_layer, radab !: goes to trash |
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128 | |
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129 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: ftotal_in !: initial total heat flux |
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130 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: ftotal_fin !: final total heat flux |
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131 | |
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132 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fc_s |
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133 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fc_i |
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134 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: de_s_lay |
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135 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: de_i_lay |
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136 | |
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137 | INTEGER , PUBLIC :: jiindex_1d ! 1D index of debugging point |
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138 | |
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139 | !!---------------------------------------------------------------------- |
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140 | !! NEMO/LIM3 4.0 , UCL - NEMO Consortium (2011) |
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141 | !! $Id$ |
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142 | !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) |
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143 | !!---------------------------------------------------------------------- |
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144 | CONTAINS |
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145 | |
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146 | FUNCTION thd_ice_alloc() |
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147 | !!---------------------------------------------------------------------! |
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148 | !! *** ROUTINE thd_ice_alloc *** |
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149 | !!---------------------------------------------------------------------! |
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150 | INTEGER :: thd_ice_alloc ! return value |
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151 | INTEGER :: ierr(4) |
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152 | !!---------------------------------------------------------------------! |
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153 | |
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154 | ALLOCATE( npb (jpij) , npac (jpij), & |
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155 | ! ! |
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156 | & qldif_1d (jpij) , qcmif_1d (jpij) , fstbif_1d (jpij) , & |
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157 | & fltbif_1d(jpij) , fscbq_1d (jpij) , qsr_ice_1d (jpij) , & |
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158 | & fr1_i0_1d(jpij) , fr2_i0_1d(jpij) , qnsr_ice_1d(jpij) , & |
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159 | & qfvbq_1d (jpij) , t_bo_b (jpij) , STAT=ierr(1) ) |
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160 | ! |
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161 | ALLOCATE( sprecip_1d (jpij) , frld_1d (jpij) , at_i_b (jpij) , & |
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162 | & fbif_1d (jpij) , rdmicif_1d (jpij) , rdmsnif_1d (jpij) , & |
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163 | & qlbbq_1d (jpij) , dmgwi_1d (jpij) , dvsbq_1d (jpij) , & |
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164 | & dvbbq_1d (jpij) , dvlbq_1d (jpij) , dvnbq_1d (jpij) , & |
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165 | & dqns_ice_1d(jpij) , qla_ice_1d (jpij) , dqla_ice_1d(jpij) , & |
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166 | & tatm_ice_1d(jpij) , fsup (jpij) , focea (jpij) , & |
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167 | & i0 (jpij) , old_ht_i_b (jpij) , old_ht_s_b (jpij) , & |
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168 | & fsbri_1d (jpij) , fhbri_1d (jpij) , fseqv_1d (jpij) , & |
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169 | & dsm_i_fl_1d(jpij) , dsm_i_gd_1d(jpij) , dsm_i_se_1d(jpij) , & |
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170 | & dsm_i_si_1d(jpij) , hicol_b (jpij) , STAT=ierr(2) ) |
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171 | ! |
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172 | ALLOCATE( t_su_b (jpij) , a_i_b (jpij) , ht_i_b (jpij) , & |
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173 | & ht_s_b (jpij) , fc_su (jpij) , fc_bo_i (jpij) , & |
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174 | & dh_s_tot (jpij) , dh_i_surf(jpij) , dh_i_bott(jpij) , & |
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175 | & dh_snowice(jpij) , sm_i_b (jpij) , s_i_new (jpij) , & |
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176 | & s_snowice (jpij) , o_i_b (jpij) , & |
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177 | ! ! |
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178 | & t_s_b(jpij,nlay_s), & |
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179 | ! ! |
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180 | & t_i_b(jpij,jkmax), s_i_b(jpij,jkmax) , & |
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181 | & q_i_b(jpij,jkmax), q_s_b(jpij,jkmax) , STAT=ierr(3)) |
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182 | ! |
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183 | ALLOCATE( qt_i_in (jpij,jpl) , qt_i_fin(jpij,jpl) , qt_s_in (jpij,jpl) , & |
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184 | & qt_s_fin (jpij,jpl) , dq_i (jpij,jpl) , sum_fluxq (jpij,jpl) , & |
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185 | & fatm (jpij,jpl) , foce (jpij,jpl) , cons_error(jpij,jpl) , & |
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186 | & surf_error(jpij,jpl) , & |
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187 | ! ! |
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188 | & q_i_layer_in(jpij,jkmax) , q_i_layer_fin(jpij,jkmax) , & |
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189 | & dq_i_layer (jpij,jkmax) , radab (jpij,jkmax) , & |
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190 | ! ! |
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191 | & ftotal_in(jpij), ftotal_fin(jpij) , & |
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192 | ! ! |
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193 | & fc_s(jpij,0:nlay_s) , de_s_lay(jpij,nlay_s) , & |
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194 | & fc_i(jpij,0:jkmax) , de_i_lay(jpij,jkmax) , STAT=ierr(4) ) |
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195 | |
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196 | thd_ice_alloc = MAXVAL( ierr ) |
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197 | |
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198 | IF( thd_ice_alloc /= 0 ) CALL ctl_warn( 'thd_ice_alloc: failed to allocate arrays.' ) |
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199 | ! |
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200 | END FUNCTION thd_ice_alloc |
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201 | |
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202 | !!====================================================================== |
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203 | END MODULE thd_ice |
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