| 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 : |
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| 7 | !! 2.0 ! 02-11 (C. Ethe) F90: Free form and module |
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| 8 | !!---------------------------------------------------------------------- |
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| 9 | !! LIM 2.0, UCL-LOCEAN-IPSL (2005) |
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| 10 | !! $Header: /home/opalod/NEMOCVSROOT/NEMO/LIM_SRC/thd_ice.F90,v 1.4 2005/03/27 18:34:42 opalod Exp $ |
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| 11 | !! This software is governed by the CeCILL licence see modipsl/doc/NEMO_CeCILL.txt |
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| 12 | !!---------------------------------------------------------------------- |
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| 13 | !! * Modules used |
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| 14 | USE par_ice |
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| 15 | |
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| 16 | IMPLICIT NONE |
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| 17 | PRIVATE |
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| 18 | |
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| 19 | !! * Share Module variables |
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| 20 | REAL(wp) , PUBLIC :: & !!! ** ice-thermo namelist (namicethd) ** |
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| 21 | hmelt = -0.15 , & !: maximum melting at the bottom |
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| 22 | hicmin = 0.2 , & !: ice th. corr. to max. ener. in brine pocket |
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| 23 | hiclim = 0.05 , & !: minimum ice thickness |
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| 24 | amax = 0.999 , & !: maximum lead fraction |
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| 25 | sbeta = 1.0 , & !: numerical scheme for diffusion in ice |
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| 26 | parlat = 0.0 , & !: percent. of energy used for lateral ablation |
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| 27 | hakspl = 0.5 , & !: slope of distr. for Hakkinen-Mellro's lat. melt |
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| 28 | hibspl = 0.5 , & !: slope of distribution for Hibler's lat. melt |
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| 29 | exld = 2.0 , & !: exponent for leads-closure rate |
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| 30 | hakdif = 1.0 , & !: coefficient for diffusions of ice and snow |
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| 31 | thth = 0.2 , & !: thick. for comp. of eq. thermal conduct |
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| 32 | hnzst = 0.1 , & !: thick. of the surf. layer in temp. comp. |
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| 33 | parsub = 1.0 , & !: switch for snow sublimation or not |
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| 34 | alphs = 1.0 , & !: coef. for snow density when snow-ice formation |
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| 35 | fraz_swi= 1.0 , & !: use of frazil ice collection in function of wind (1.0) or not (0.0) |
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| 36 | maxfrazb= 0.7 , & !: maximum portion of frazil ice collecting at the ice bottom |
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| 37 | vfrazb = 0.41667, & !: threshold drift speed for collection of bottom frazil ice |
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| 38 | 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) :: & !: |
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| 41 | hiccrit = (/0.3,0.3/) !: ice th. for lateral accretion in the NH (SH) (m) |
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| 42 | |
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| 43 | REAL(wp) , PUBLIC :: & !: |
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| 44 | uscomi !: inverse of minimum lead fraction |
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| 45 | |
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| 46 | INTEGER , PUBLIC, DIMENSION(jpij) :: & !: |
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| 47 | npb , & !: number of points where computations has to be done |
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| 48 | npac !: correspondance between the points |
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| 49 | |
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| 50 | REAL(wp), PUBLIC, DIMENSION(jpij) :: & !: |
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| 51 | qldif_1d , & !: corresponding to the 2D var qldif |
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| 52 | qcmif_1d , & !: corresponding to the 2D var qcmif |
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| 53 | fstbif_1d , & !: " " fstric |
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| 54 | fltbif_1d , & !: " " ffltbif |
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| 55 | fscbq_1d , & !: " " fscmcbq |
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| 56 | qsr_ice_1d , & !: " " qsr_ice |
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| 57 | fr1_i0_1d , & !: " " fr1_i0 |
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| 58 | fr2_i0_1d , & !: " " fr2_i0 |
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| 59 | qnsr_ice_1d , & !: " " qns_ice |
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| 60 | qfvbq_1d , & !: " " qfvbq |
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| 61 | t_bo_b !: " " t_bo |
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| 62 | |
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| 63 | REAL(wp), PUBLIC, DIMENSION(jpij) :: & !: |
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| 64 | sprecip_1d , & !: " " sprecip |
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| 65 | frld_1d , & !: " " frld |
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| 66 | at_i_b , & !: " " frld |
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| 67 | fbif_1d , & !: " " fbif |
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| 68 | rdmicif_1d , & !: " " rdmicif |
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| 69 | rdmsnif_1d , & !: " " rdmsnif |
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| 70 | qlbbq_1d , & !: " " qlbsbq |
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| 71 | dmgwi_1d , & !: " " dmgwi |
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| 72 | dvsbq_1d , & !: " " rdvosif |
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| 73 | dvbbq_1d , & !: " " rdvobif |
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| 74 | dvlbq_1d , & !: " " rdvolif |
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| 75 | dvnbq_1d , & !: " " rdvolif |
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| 76 | dqns_ice_1d , & !: " " dqns_ice |
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| 77 | qla_ice_1d , & !: " " qla_ice |
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| 78 | dqla_ice_1d , & !: " " dqla_ice |
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| 79 | ! to reintegrate longwave flux inside the ice thermodynamics |
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| 80 | qtur_ice_1d , & !: " " qtur_ice |
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| 81 | dqtu_ice_1d , & !: " " dqtu_ice |
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| 82 | catm_ice_1d , & !: " " catm_ice |
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| 83 | tatm_ice_1d , & !: " " tatm_ice |
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| 84 | evsq_ice_1d , & !: " " evsq_ice |
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| 85 | sbud_ice_1d , & !: " " sbud_ice |
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| 86 | fsup , & !: Energy flux sent from bottom to lateral ablation if |dhb|> 0.15 m |
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| 87 | focea , & !: Remaining energy in case of total ablation |
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| 88 | i0 , & !: fraction of radiation transmitted to the ice interior |
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| 89 | old_ht_i_b , & !: Ice thickness at the beginnning of the time step [m] |
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| 90 | old_ht_s_b , & !: Snow thickness at the beginning of the time step [m] |
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| 91 | fsbri_1d , & !: Salt flux due to brine drainage |
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| 92 | fhbri_1d , & !: Heat flux due to brine drainage |
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| 93 | fseqv_1d , & !: Equivalent Salt flux due to ice growth/decay |
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| 94 | dsm_i_fl_1d , & !: Ice salinity variations due to flushing |
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| 95 | dsm_i_gd_1d , & !: Ice salinity variations due to gravity drainage |
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| 96 | dsm_i_se_1d , & !: Ice salinity variations due to basal salt entrapment |
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| 97 | dsm_i_la_1d , & !: Ice salinity variations due to lateral accretion |
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| 98 | dsm_i_si_1d , & !: Ice salinity variations due to lateral accretion |
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| 99 | hicol_b !: Ice collection thickness accumulated in fleads |
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| 100 | |
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| 101 | REAL(wp), PUBLIC, DIMENSION(jpij) :: & !: |
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| 102 | t_su_b , & !: " " t_su |
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| 103 | a_i_b , & !: a_i |
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| 104 | ht_i_b , & !: " " ht_s |
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| 105 | ht_s_b , & !: " " ht_i |
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| 106 | fc_su , & !: Surface Conduction flux |
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| 107 | fc_bo_i , & !: Bottom Conduction flux |
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| 108 | dh_s_tot , & !: Snow accretion/ablation [m] |
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| 109 | dh_i_surf , & !: Ice surface accretion/ablation [m] |
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| 110 | dh_i_bott , & !: Ice bottom accretion/ablation [m] |
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| 111 | dh_snowice , & !: Snow ice formation [m of ice] |
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| 112 | sm_i_b , & !: Ice bulk salinity [ppt] |
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| 113 | s_i_new , & !: Salinity of new ice at the bottom |
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| 114 | s_snowice , & !: Salinity of new snow ice on top of the ice |
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| 115 | o_i_b !: Ice age [days] |
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| 116 | |
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| 117 | REAL(wp), PUBLIC, DIMENSION(jpij,nlay_s) :: & !: |
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| 118 | t_s_b !: corresponding to the 2D var t_s |
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| 119 | REAL(wp), PUBLIC, DIMENSION(jpij,jkmax) :: & !: |
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| 120 | t_i_b, & !: corresponding to the 2D var t_i |
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| 121 | s_i_b, & !: profiled ice salinity |
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| 122 | q_i_b, & !: Ice enthalpy per unit volume |
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| 123 | q_s_b !: Snow enthalpy per unit volume |
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| 124 | |
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| 125 | ! goes to trash, just for conservation checks |
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| 126 | REAL(wp), PUBLIC, DIMENSION(jpij,jpl) :: & !: ! goes to trash |
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| 127 | qt_i_in , & !: ice energy summed over categories (initial) |
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| 128 | qt_i_fin , & !: ice energy summed over categories (final) |
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| 129 | qt_s_in, qt_s_fin , & !: snow energy summed over categories |
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| 130 | dq_i, sum_fluxq , & !: increment of energy, sum of fluxes |
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| 131 | fatm, foce, & !: atmospheric, oceanic, heat flux |
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| 132 | cons_error, surf_error !: conservation, surface error |
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| 133 | |
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| 134 | REAL(wp), PUBLIC, DIMENSION(jpij,jkmax):: & !: goes to trash |
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| 135 | q_i_layer_in, & |
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| 136 | q_i_layer_fin, & |
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| 137 | dq_i_layer, radab |
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| 138 | |
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| 139 | REAL(wp), PUBLIC, DIMENSION(jpij) :: & !: |
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| 140 | ftotal_in , & !: initial total heat flux |
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| 141 | ftotal_fin !: final total heat flux |
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| 142 | |
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| 143 | REAL(wp), PUBLIC, DIMENSION(jpij,0:nlay_s) :: & !: |
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| 144 | fc_s |
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| 145 | REAL(wp), PUBLIC, DIMENSION(jpij,0:jkmax) :: & !: |
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| 146 | fc_i |
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| 147 | REAL(wp), PUBLIC, DIMENSION(jpij,nlay_s) :: & !: |
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| 148 | de_s_lay |
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| 149 | REAL(wp), PUBLIC, DIMENSION(jpij,jkmax) :: & !: |
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| 150 | de_i_lay |
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| 151 | INTEGER , PUBLIC :: & |
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| 152 | jiindex_1d ! 1D index of debugging point |
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| 153 | |
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| 154 | !!====================================================================== |
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| 155 | END MODULE thd_ice |
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