| 1 | MODULE thd_ice |
|---|
| 2 | !!====================================================================== |
|---|
| 3 | !! *** MODULE thd_ice *** |
|---|
| 4 | !! LIM-3 sea-ice : Ice thermodynamics in 1D |
|---|
| 5 | !!===================================================================== |
|---|
| 6 | !! History : 3.0 ! 2008-03 (M. Vancoppenolle) LIM3 original code |
|---|
| 7 | !! 3.1 ! 2010-05 (Y. Aksenov, M. Vancoppenolle, G. Madec) add heat content exchanges |
|---|
| 8 | !!---------------------------------------------------------------------- |
|---|
| 9 | USE par_ice |
|---|
| 10 | |
|---|
| 11 | IMPLICIT NONE |
|---|
| 12 | PRIVATE |
|---|
| 13 | |
|---|
| 14 | !!--------------------------- |
|---|
| 15 | !! * Share Module variables |
|---|
| 16 | !!--------------------------- |
|---|
| 17 | REAL(wp) , PUBLIC :: & !!! ** ice-thermo namelist (namicethd) ** |
|---|
| 18 | hmelt = -0.15 , & !: maximum melting at the bottom; active only for |
|---|
| 19 | !: one category |
|---|
| 20 | hicmin = 0.2 , & !: (REMOVE) |
|---|
| 21 | hiclim = 0.05 , & !: minimum ice thickness |
|---|
| 22 | amax = 0.999 , & !: maximum lead fraction |
|---|
| 23 | sbeta = 1.0 , & !: numerical scheme for diffusion in ice (REMOVE) |
|---|
| 24 | parlat = 0.0 , & !: (REMOVE) |
|---|
| 25 | hakspl = 0.5 , & !: (REMOVE) |
|---|
| 26 | hibspl = 0.5 , & !: (REMOVE) |
|---|
| 27 | exld = 2.0 , & !: (REMOVE) |
|---|
| 28 | hakdif = 1.0 , & !: (REMOVE) |
|---|
| 29 | thth = 0.2 , & !: (REMOVE) |
|---|
| 30 | hnzst = 0.1 , & !: thick. of the surf. layer in temp. comp. |
|---|
| 31 | parsub = 1.0 , & !: switch for snow sublimation or not |
|---|
| 32 | alphs = 1.0 , & !: coef. for snow density when snow-ice formation |
|---|
| 33 | fraz_swi= 1.0 , & !: use of frazil ice collection in function of wind (1.0) or not (0.0) |
|---|
| 34 | maxfrazb= 0.7 , & !: maximum portion of frazil ice collecting at the ice bottom |
|---|
| 35 | vfrazb = 0.41667, & !: threshold drift speed for collection of bottom frazil ice |
|---|
| 36 | Cfrazb = 5.0 !: squeezing coefficient for collection of bottom frazil ice |
|---|
| 37 | |
|---|
| 38 | REAL(wp), PUBLIC, DIMENSION(2) :: & !: |
|---|
| 39 | hiccrit = (/0.3,0.3/) !: ice th. for lateral accretion in the NH (SH) (m) |
|---|
| 40 | |
|---|
| 41 | !!----------------------------- |
|---|
| 42 | !! * Share 1D Module variables |
|---|
| 43 | !!----------------------------- |
|---|
| 44 | !: In ice thermodynamics, to spare memory, the vectors are folded |
|---|
| 45 | !: from 1D to 2D vectors. The following variables, with ending _1d (or _b) |
|---|
| 46 | !: are the variables corresponding to 2d vectors |
|---|
| 47 | |
|---|
| 48 | INTEGER , PUBLIC, DIMENSION(jpij) :: & !: |
|---|
| 49 | npb , & !: number of points where computations has to be done |
|---|
| 50 | npac !: correspondance between the points (lateral accretion) |
|---|
| 51 | |
|---|
| 52 | REAL(wp), PUBLIC, DIMENSION(jpij) :: & !: |
|---|
| 53 | qldif_1d , & !: corresponding to the 2D var qldif |
|---|
| 54 | qcmif_1d , & !: corresponding to the 2D var qcmif |
|---|
| 55 | fstbif_1d , & !: " " fstric |
|---|
| 56 | fltbif_1d , & !: " " ffltbif |
|---|
| 57 | fscbq_1d , & !: " " fscmcbq |
|---|
| 58 | qsr_ice_1d , & !: " " qsr_ice |
|---|
| 59 | fr1_i0_1d , & !: " " fr1_i0 |
|---|
| 60 | fr2_i0_1d , & !: " " fr2_i0 |
|---|
| 61 | qnsr_ice_1d , & !: " " qns_ice |
|---|
| 62 | qfvbq_1d , & !: " " qfvbq |
|---|
| 63 | t_bo_b !: " " t_bo |
|---|
| 64 | |
|---|
| 65 | REAL(wp), PUBLIC, DIMENSION(jpij) :: & !: |
|---|
| 66 | sprecip_1d , & !: " " sprecip |
|---|
| 67 | frld_1d , & !: " " frld |
|---|
| 68 | at_i_b , & !: " " frld |
|---|
| 69 | fbif_1d , & !: " " fbif |
|---|
| 70 | rdm_ice_1d , & !: " " rdm_ice |
|---|
| 71 | rdq_ice_1d , & !: " " rdm_ice |
|---|
| 72 | rdm_snw_1d , & !: " " rdm_snw |
|---|
| 73 | rdq_snw_1d , & !: " " rdm_snw |
|---|
| 74 | qlbbq_1d , & !: " " qlbsbq |
|---|
| 75 | dmgwi_1d , & !: " " dmgwi |
|---|
| 76 | dvsbq_1d , & !: " " rdvosif |
|---|
| 77 | dvbbq_1d , & !: " " rdvobif |
|---|
| 78 | dvlbq_1d , & !: " " rdvolif |
|---|
| 79 | dvnbq_1d , & !: " " rdvolif |
|---|
| 80 | dqns_ice_1d , & !: " " dqns_ice |
|---|
| 81 | qla_ice_1d , & !: " " qla_ice |
|---|
| 82 | dqla_ice_1d , & !: " " dqla_ice |
|---|
| 83 | ! to reintegrate longwave flux inside the ice thermodynamics |
|---|
| 84 | !!sm: not used qtur_ice_1d , & !: " " qtur_ice |
|---|
| 85 | !!sm: not used dqtu_ice_1d , & !: " " dqtu_ice |
|---|
| 86 | !!sm: not used catm_ice_1d , & !: " " catm_ice |
|---|
| 87 | tatm_ice_1d , & !: " " tatm_ice |
|---|
| 88 | !!sm: not used evsq_ice_1d , & !: " " evsq_ice |
|---|
| 89 | !!sm: not used sbud_ice_1d , & !: " " sbud_ice |
|---|
| 90 | fsup , & !: Energy flux sent from bottom to lateral ablation if |dhb|> 0.15 m |
|---|
| 91 | focea , & !: Remaining energy in case of total ablation |
|---|
| 92 | i0 , & !: fraction of radiation transmitted to the ice interior |
|---|
| 93 | old_ht_i_b , & !: Ice thickness at the beginnning of the time step [m] |
|---|
| 94 | old_ht_s_b , & !: Snow thickness at the beginning of the time step [m] |
|---|
| 95 | fsbri_1d , & !: Salt flux due to brine drainage |
|---|
| 96 | fhbri_1d , & !: Heat flux due to brine drainage |
|---|
| 97 | fseqv_1d , & !: Equivalent Salt flux due to ice growth/decay |
|---|
| 98 | dsm_i_fl_1d , & !: Ice salinity variations due to flushing |
|---|
| 99 | dsm_i_gd_1d , & !: Ice salinity variations due to gravity drainage |
|---|
| 100 | dsm_i_se_1d , & !: Ice salinity variations due to basal salt entrapment |
|---|
| 101 | !!sm: not used dsm_i_la_1d , & !: Ice salinity variations due to lateral accretion |
|---|
| 102 | dsm_i_si_1d , & !: Ice salinity variations due to lateral accretion |
|---|
| 103 | hicol_b !: Ice collection thickness accumulated in fleads |
|---|
| 104 | |
|---|
| 105 | REAL(wp), PUBLIC, DIMENSION(jpij) :: & !: |
|---|
| 106 | t_su_b , & !: " " t_su |
|---|
| 107 | a_i_b , & !: a_i |
|---|
| 108 | ht_i_b , & !: " " ht_s |
|---|
| 109 | ht_s_b , & !: " " ht_i |
|---|
| 110 | fc_su , & !: Surface Conduction flux |
|---|
| 111 | fc_bo_i , & !: Bottom Conduction flux |
|---|
| 112 | dh_s_tot , & !: Snow accretion/ablation [m] |
|---|
| 113 | dh_i_surf , & !: Ice surface accretion/ablation [m] |
|---|
| 114 | dh_i_bott , & !: Ice bottom accretion/ablation [m] |
|---|
| 115 | dh_snowice , & !: Snow ice formation [m of ice] |
|---|
| 116 | sm_i_b , & !: Ice bulk salinity [ppt] |
|---|
| 117 | s_i_new , & !: Salinity of new ice at the bottom |
|---|
| 118 | s_snowice , & !: Salinity of new snow ice on top of the ice |
|---|
| 119 | o_i_b !: Ice age [days] |
|---|
| 120 | |
|---|
| 121 | REAL(wp), PUBLIC, DIMENSION(jpij,nlay_s) :: & !: |
|---|
| 122 | t_s_b !: corresponding to the 2D var t_s |
|---|
| 123 | REAL(wp), PUBLIC, DIMENSION(jpij,jkmax) :: & !: |
|---|
| 124 | t_i_b, & !: corresponding to the 2D var t_i |
|---|
| 125 | s_i_b, & !: profiled ice salinity |
|---|
| 126 | q_i_b, & !: Ice enthalpy per unit volume |
|---|
| 127 | q_s_b !: Snow enthalpy per unit volume |
|---|
| 128 | |
|---|
| 129 | ! Clean the following ... |
|---|
| 130 | ! These variables are coded for conservation checks |
|---|
| 131 | REAL(wp), PUBLIC, DIMENSION(jpij,jpl) :: & ! |
|---|
| 132 | qt_i_in , & !: ice energy summed over categories (initial) |
|---|
| 133 | qt_i_fin , & !: ice energy summed over categories (final) |
|---|
| 134 | qt_s_in, qt_s_fin , & !: snow energy summed over categories |
|---|
| 135 | dq_i, sum_fluxq , & !: increment of energy, sum of fluxes |
|---|
| 136 | fatm, foce, & !: atmospheric, oceanic, heat flux |
|---|
| 137 | cons_error, surf_error !: conservation, surface error |
|---|
| 138 | |
|---|
| 139 | REAL(wp), PUBLIC, DIMENSION(jpij,jkmax):: & !: goes to trash |
|---|
| 140 | q_i_layer_in, & |
|---|
| 141 | q_i_layer_fin, & |
|---|
| 142 | dq_i_layer, radab |
|---|
| 143 | |
|---|
| 144 | REAL(wp), PUBLIC, DIMENSION(jpij) :: & !: |
|---|
| 145 | ftotal_in , & !: initial total heat flux |
|---|
| 146 | ftotal_fin !: final total heat flux |
|---|
| 147 | |
|---|
| 148 | REAL(wp), PUBLIC, DIMENSION(jpij,0:nlay_s) :: fc_s |
|---|
| 149 | REAL(wp), PUBLIC, DIMENSION(jpij,0:jkmax) :: fc_i |
|---|
| 150 | REAL(wp), PUBLIC, DIMENSION(jpij,nlay_s) :: de_s_lay |
|---|
| 151 | REAL(wp), PUBLIC, DIMENSION(jpij,jkmax) :: de_i_lay |
|---|
| 152 | INTEGER , PUBLIC :: jiindex_1d ! 1D index of debugging point |
|---|
| 153 | |
|---|
| 154 | !!---------------------------------------------------------------------- |
|---|
| 155 | !! NEMO/LIM 3.0, UCL-LOCEAN-IPSL (2010) |
|---|
| 156 | !! $Id$ |
|---|
| 157 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
|---|
| 158 | !!====================================================================== |
|---|
| 159 | END MODULE thd_ice |
|---|
