| 1 | MODULE ice |
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| 2 | !!====================================================================== |
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| 3 | !! *** MODULE ice *** |
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| 4 | !! sea-ice: ice variables defined in memory |
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| 5 | !!====================================================================== |
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| 6 | !! History : 3.0 ! 2008-03 (M. Vancoppenolle) Original code |
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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 | USE in_out_manager ! I/O manager |
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| 14 | USE lib_mpp ! MPP library |
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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 | PUBLIC ice_alloc ! called by icestp.F90 |
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| 20 | |
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| 21 | !!====================================================================== |
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| 22 | !! | |
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| 23 | !! I C E S T A T E V A R I A B L E S | |
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| 24 | !! | |
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| 25 | !! Introduction : | |
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| 26 | !! -------------- | |
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| 27 | !! Every ice-covered grid cell is characterized by a series of state | |
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| 28 | !! variables. To account for unresolved spatial variability in ice | |
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| 29 | !! thickness, the ice cover in divided in ice thickness categories. | |
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| 30 | !! | |
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| 31 | !! Sea ice state variables depend on the ice thickness category | |
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| 32 | !! | |
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| 33 | !! Those variables are divided into two groups | |
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| 34 | !! * Extensive (or global) variables. | |
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| 35 | !! These are the variables that are transported by all means | |
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| 36 | !! * Intensive (or equivalent) variables. | |
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| 37 | !! These are the variables that are either physically more | |
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| 38 | !! meaningful and/or used in ice thermodynamics | |
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| 39 | !! | |
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| 40 | !! List of ice state variables : | |
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| 41 | !! ----------------------------- | |
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| 42 | !! | |
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| 43 | !!-------------|-------------|---------------------------------|-------| |
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| 44 | !! name in | name in | meaning | units | |
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| 45 | !! 2D routines | 1D routines | | | |
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| 46 | !!-------------|-------------|---------------------------------|-------| |
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| 47 | !! | |
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| 48 | !! ******************************************************************* | |
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| 49 | !! *** Dynamical variables (prognostic) *** | |
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| 50 | !! ******************************************************************* | |
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| 51 | !! | |
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| 52 | !! u_ice | - | Comp. U of the ice velocity | m/s | |
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| 53 | !! v_ice | - | Comp. V of the ice velocity | m/s | |
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| 54 | !! | |
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| 55 | !! ******************************************************************* | |
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| 56 | !! *** Category dependent state variables (prognostic) *** | |
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| 57 | !! ******************************************************************* | |
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| 58 | !! | |
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| 59 | !! ** Global variables | |
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| 60 | !!-------------|-------------|---------------------------------|-------| |
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| 61 | !! a_i | a_i_1d | Ice concentration | | |
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| 62 | !! v_i | - | Ice volume per unit area | m | |
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| 63 | !! v_s | - | Snow volume per unit area | m | |
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| 64 | !! sv_i | - | Sea ice salt content | ppt.m | |
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| 65 | !! oa_i ! - ! Sea ice areal age content | s | |
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| 66 | !! e_i ! - ! Ice enthalpy | J/m2 | |
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| 67 | !! - ! e_i_1d ! Ice enthalpy per unit vol. | J/m3 | |
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| 68 | !! e_s ! - ! Snow enthalpy | J/m2 | |
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| 69 | !! - ! e_s_1d ! Snow enthalpy per unit vol. | J/m3 | |
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| 70 | !! | |
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| 71 | !!-------------|-------------|---------------------------------|-------| |
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| 72 | !! | |
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| 73 | !! ** Equivalent variables | |
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| 74 | !!-------------|-------------|---------------------------------|-------| |
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| 75 | !! | |
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| 76 | !! h_i | h_i_1d | Ice thickness | m | |
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| 77 | !! h_s ! h_s_1d | Snow depth | m | |
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| 78 | !! s_i ! s_i_1d | Sea ice bulk salinity ! ppt | |
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| 79 | !! sz_i ! sz_i_1d | Sea ice salinity profile ! ppt | |
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| 80 | !! o_i ! - | Sea ice Age ! s | |
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| 81 | !! t_i ! t_i_1d | Sea ice temperature ! K | |
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| 82 | !! t_s ! t_s_1d | Snow temperature ! K | |
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| 83 | !! t_su ! t_su_1d | Sea ice surface temperature ! K | |
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| 84 | !! | |
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| 85 | !! notes: the ice model only sees a bulk (i.e., vertically averaged) | |
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| 86 | !! salinity, except in thermodynamic computations, for which | |
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| 87 | !! the salinity profile is computed as a function of bulk | |
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| 88 | !! salinity | |
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| 89 | !! | |
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| 90 | !! the sea ice surface temperature is not associated to any | |
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| 91 | !! heat content. Therefore, it is not a state variable and | |
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| 92 | !! does not have to be advected. Nevertheless, it has to be | |
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| 93 | !! computed to determine whether the ice is melting or not | |
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| 94 | !! | |
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| 95 | !! ******************************************************************* | |
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| 96 | !! *** Category-summed state variables (diagnostic) *** | |
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| 97 | !! ******************************************************************* | |
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| 98 | !! at_i | at_i_1d | Total ice concentration | | |
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| 99 | !! vt_i | - | Total ice vol. per unit area | m | |
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| 100 | !! vt_s | - | Total snow vol. per unit ar. | m | |
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| 101 | !! sm_i | - | Mean sea ice salinity | ppt | |
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| 102 | !! tm_i | - | Mean sea ice temperature | K | |
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| 103 | !! tm_s | - | Mean snow temperature | K | |
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| 104 | !! et_i ! - ! Total ice enthalpy | J/m2 | |
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| 105 | !! et_s ! - ! Total snow enthalpy | J/m2 | |
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| 106 | !! bv_i ! - ! relative brine volume | ??? | |
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| 107 | !!===================================================================== |
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| 108 | |
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| 109 | !!---------------------------------------------------------------------- |
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| 110 | !! * Share Module variables |
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| 111 | !!---------------------------------------------------------------------- |
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| 112 | ! !!** ice-generic parameters namelist (nampar) ** |
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| 113 | INTEGER , PUBLIC :: jpl !: number of ice categories |
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| 114 | INTEGER , PUBLIC :: nlay_i !: number of ice layers |
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| 115 | INTEGER , PUBLIC :: nlay_s !: number of snow layers |
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| 116 | LOGICAL , PUBLIC :: ln_virtual_itd !: virtual ITD mono-category parameterization (T) or not (F) |
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| 117 | LOGICAL , PUBLIC :: ln_icedyn !: flag for ice dynamics (T) or not (F) |
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| 118 | LOGICAL , PUBLIC :: ln_icethd !: flag for ice thermo (T) or not (F) |
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| 119 | REAL(wp) , PUBLIC :: rn_amax_n !: maximum ice concentration Northern hemisphere |
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| 120 | REAL(wp) , PUBLIC :: rn_amax_s !: maximum ice concentration Southern hemisphere |
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| 121 | CHARACTER(len=256), PUBLIC :: cn_icerst_in !: suffix of ice restart name (input) |
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| 122 | CHARACTER(len=256), PUBLIC :: cn_icerst_out !: suffix of ice restart name (output) |
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| 123 | CHARACTER(len=256), PUBLIC :: cn_icerst_indir !: ice restart input directory |
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| 124 | CHARACTER(len=256), PUBLIC :: cn_icerst_outdir !: ice restart output directory |
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| 125 | |
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| 126 | ! !!** ice-itd namelist (namitd) ** |
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| 127 | REAL(wp), PUBLIC :: rn_himin !: minimum ice thickness |
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| 128 | |
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| 129 | ! !!** ice-dynamics namelist (namdyn) ** |
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| 130 | REAL(wp), PUBLIC :: rn_ishlat !: lateral boundary condition for sea-ice |
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| 131 | LOGICAL , PUBLIC :: ln_landfast_L16 !: landfast ice parameterizationfrom lemieux2016 |
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| 132 | LOGICAL , PUBLIC :: ln_landfast_home !: landfast ice parameterizationfrom home made |
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| 133 | REAL(wp), PUBLIC :: rn_depfra !: fraction of ocean depth that ice must reach to initiate landfast ice |
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| 134 | REAL(wp), PUBLIC :: rn_icebfr !: maximum bottom stress per unit area of contact (lemieux2016) or per unit volume (home) |
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| 135 | REAL(wp), PUBLIC :: rn_lfrelax !: relaxation time scale (s-1) to reach static friction |
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| 136 | REAL(wp), PUBLIC :: rn_tensile !: isotropic tensile strength |
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| 137 | ! |
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| 138 | ! !!** ice-ridging/rafting namelist (namdyn_rdgrft) ** |
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| 139 | REAL(wp), PUBLIC :: rn_crhg !: determines changes in ice strength (also used for landfast param) |
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| 140 | ! |
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| 141 | ! !!** ice-rheology namelist (namdyn_rhg) ** |
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| 142 | LOGICAL , PUBLIC :: ln_aEVP !: using adaptive EVP (T or F) |
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| 143 | REAL(wp), PUBLIC :: rn_creepl !: creep limit : has to be under 1.0e-9 |
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| 144 | REAL(wp), PUBLIC :: rn_ecc !: eccentricity of the elliptical yield curve |
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| 145 | INTEGER , PUBLIC :: nn_nevp !: number of iterations for subcycling |
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| 146 | REAL(wp), PUBLIC :: rn_relast !: ratio => telast/rdt_ice (1/3 or 1/9 depending on nb of subcycling nevp) |
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| 147 | ! |
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| 148 | ! !!** ice-advection namelist (namdyn_adv) ** |
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| 149 | LOGICAL , PUBLIC :: ln_adv_Pra !: Prather advection scheme |
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| 150 | LOGICAL , PUBLIC :: ln_adv_UMx !: Ultimate-Macho advection scheme |
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| 151 | ! |
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| 152 | ! !!** ice-surface boundary conditions namelist (namsbc) ** |
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| 153 | ! -- icethd_dh -- ! |
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| 154 | REAL(wp), PUBLIC :: rn_blow_s !: coef. for partitioning of snowfall between leads and sea ice |
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| 155 | ! -- icethd -- ! |
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| 156 | REAL(wp), PUBLIC :: rn_cio !: drag coefficient for oceanic stress |
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| 157 | INTEGER , PUBLIC :: nn_flxdist !: Redistribute heat flux over ice categories |
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| 158 | ! ! =-1 Do nothing (needs N(cat) fluxes) |
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| 159 | ! ! = 0 Average N(cat) fluxes then apply the average over the N(cat) ice |
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| 160 | ! ! = 1 Average N(cat) fluxes then redistribute over the N(cat) ice using T-ice and albedo sensitivity |
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| 161 | ! ! = 2 Redistribute a single flux over categories |
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| 162 | LOGICAL , PUBLIC :: ln_cndflx !: use conduction flux as surface boundary condition (instead of qsr and qns) |
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| 163 | LOGICAL , PUBLIC :: ln_cndemulate !: emulate conduction flux (if not provided) |
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| 164 | ! ! Conduction flux as surface forcing or not |
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| 165 | INTEGER, PUBLIC, PARAMETER :: np_cnd_OFF = 0 !: no forcing from conduction flux (ice thermodynamics forced via qsr and qns) |
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| 166 | INTEGER, PUBLIC, PARAMETER :: np_cnd_ON = 1 !: forcing from conduction flux (SM0L) (compute qcn and qsr_tr via sbcblk.F90 or sbccpl.F90) |
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| 167 | INTEGER, PUBLIC, PARAMETER :: np_cnd_EMU = 2 !: emulate conduction flux via icethd_zdf.F90 (BL99) (1st round compute qcn and qsr_tr, 2nd round use it) |
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| 168 | |
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| 169 | ! !!** ice-vertical diffusion namelist (namthd_zdf) ** |
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| 170 | LOGICAL , PUBLIC :: ln_cndi_U64 !: thermal conductivity: Untersteiner (1964) |
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| 171 | LOGICAL , PUBLIC :: ln_cndi_P07 !: thermal conductivity: Pringle et al (2007) |
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| 172 | REAL(wp), PUBLIC :: rn_kappa_i !: coef. for the extinction of radiation Grenfell et al. (2006) [1/m] |
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| 173 | REAL(wp), PUBLIC :: rn_cnd_s !: thermal conductivity of the snow [W/m/K] |
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| 174 | |
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| 175 | ! !!** ice-salinity namelist (namthd_sal) ** |
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| 176 | INTEGER , PUBLIC :: nn_icesal !: salinity configuration used in the model |
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| 177 | ! ! 1 - constant salinity in both space and time |
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| 178 | ! ! 2 - prognostic salinity (s(z,t)) |
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| 179 | ! ! 3 - salinity profile, constant in time |
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| 180 | REAL(wp), PUBLIC :: rn_icesal !: bulk salinity (ppt) in case of constant salinity |
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| 181 | REAL(wp), PUBLIC :: rn_simax !: maximum ice salinity [PSU] |
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| 182 | REAL(wp), PUBLIC :: rn_simin !: minimum ice salinity [PSU] |
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| 183 | |
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| 184 | ! !!** ice-ponds namelist (namthd_pnd) |
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| 185 | LOGICAL , PUBLIC :: ln_pnd_H12 !: Melt ponds scheme from Holland et al 2012 |
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| 186 | LOGICAL , PUBLIC :: ln_pnd_CST !: Melt ponds scheme with constant fraction and depth |
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| 187 | REAL(wp), PUBLIC :: rn_apnd !: prescribed pond fraction (0<rn_apnd<1) |
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| 188 | REAL(wp), PUBLIC :: rn_hpnd !: prescribed pond depth (0<rn_hpnd<1) |
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| 189 | LOGICAL , PUBLIC :: ln_pnd_alb !: melt ponds affect albedo |
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| 190 | |
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| 191 | ! !!** ice-diagnostics namelist (namdia) ** |
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| 192 | LOGICAL , PUBLIC :: ln_icediachk !: flag for ice diag (T) or not (F) |
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| 193 | LOGICAL , PUBLIC :: ln_icediahsb !: flag for ice diag (T) or not (F) |
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| 194 | LOGICAL , PUBLIC :: ln_icectl !: flag for sea-ice points output (T) or not (F) |
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| 195 | INTEGER , PUBLIC :: iiceprt !: debug i-point |
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| 196 | INTEGER , PUBLIC :: jiceprt !: debug j-point |
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| 197 | |
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| 198 | ! !!** some other parameters |
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| 199 | INTEGER , PUBLIC :: kt_ice !: iteration number |
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| 200 | REAL(wp), PUBLIC :: rdt_ice !: ice time step |
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| 201 | REAL(wp), PUBLIC :: r1_rdtice !: = 1. / rdt_ice |
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| 202 | REAL(wp), PUBLIC :: r1_nlay_i !: 1 / nlay_i |
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| 203 | REAL(wp), PUBLIC :: r1_nlay_s !: 1 / nlay_s |
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| 204 | REAL(wp), PUBLIC :: rswitch !: switch for the presence of ice (1) or not (0) |
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| 205 | REAL(wp), PUBLIC :: rdiag_v, rdiag_s, rdiag_t, rdiag_fv, rdiag_fs, rdiag_ft !: conservation diagnostics |
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| 206 | REAL(wp), PUBLIC, PARAMETER :: epsi06 = 1.e-06_wp !: small number |
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| 207 | REAL(wp), PUBLIC, PARAMETER :: epsi10 = 1.e-10_wp !: small number |
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| 208 | REAL(wp), PUBLIC, PARAMETER :: epsi20 = 1.e-20_wp !: small number |
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| 209 | |
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| 210 | ! !!** some other parameters for advection using the ULTIMATE-MACHO scheme |
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| 211 | LOGICAL, PUBLIC, DIMENSION(2) :: l_split_advumx = .FALSE. ! force one iteration at the first time-step |
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| 212 | |
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| 213 | ! !!** define arrays |
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| 214 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: u_oce,v_oce !: surface ocean velocity used in ice dynamics |
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| 215 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: ht_i_new !: ice collection thickness accreted in leads |
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| 216 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: strength !: ice strength |
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| 217 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: stress1_i, stress2_i, stress12_i !: 1st, 2nd & diagonal stress tensor element |
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| 218 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: delta_i !: ice rheology elta factor (Flato & Hibler 95) [s-1] |
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| 219 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: divu_i !: Divergence of the velocity field [s-1] |
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| 220 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: shear_i !: Shear of the velocity field [s-1] |
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| 221 | ! |
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| 222 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: t_bo !: Sea-Ice bottom temperature [Kelvin] |
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| 223 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qlead !: heat balance of the lead (or of the open ocean) |
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| 224 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qsb_ice_bot !: net downward heat flux from the ice to the ocean |
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| 225 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: fhld !: heat flux from the lead used for bottom melting |
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| 226 | |
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| 227 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_snw !: snow-ocean mass exchange [kg.m-2.s-1] |
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| 228 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_snw_sni !: snow ice growth component of wfx_snw [kg.m-2.s-1] |
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| 229 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_snw_sum !: surface melt component of wfx_snw [kg.m-2.s-1] |
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| 230 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_pnd !: melt pond-ocean mass exchange [kg.m-2.s-1] |
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| 231 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_spr !: snow precipitation on ice [kg.m-2.s-1] |
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| 232 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_sub !: sublimation of snow/ice [kg.m-2.s-1] |
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| 233 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_snw_sub !: snow sublimation [kg.m-2.s-1] |
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| 234 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_ice_sub !: ice sublimation [kg.m-2.s-1] |
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| 235 | |
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| 236 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_snw_dyn !: dynamical component of wfx_snw [kg.m-2.s-1] |
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| 237 | |
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| 238 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_ice !: ice-ocean mass exchange [kg.m-2.s-1] |
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| 239 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_sni !: snow ice growth component of wfx_ice [kg.m-2.s-1] |
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| 240 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_opw !: lateral ice growth component of wfx_ice [kg.m-2.s-1] |
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| 241 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_bog !: bottom ice growth component of wfx_ice [kg.m-2.s-1] |
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| 242 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_dyn !: dynamical ice growth component of wfx_ice [kg.m-2.s-1] |
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| 243 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_bom !: bottom melt component of wfx_ice [kg.m-2.s-1] |
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| 244 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_sum !: surface melt component of wfx_ice [kg.m-2.s-1] |
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| 245 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_lam !: lateral melt component of wfx_ice [kg.m-2.s-1] |
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| 246 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_res !: residual component of wfx_ice [kg.m-2.s-1] |
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| 247 | |
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| 248 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: afx_tot !: ice concentration tendency (total) [s-1] |
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| 249 | |
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| 250 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_bog !: salt flux due to ice growth/melt [PSU/m2/s] |
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| 251 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_bom !: salt flux due to ice growth/melt [PSU/m2/s] |
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| 252 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_lam !: salt flux due to ice growth/melt [PSU/m2/s] |
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| 253 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_sum !: salt flux due to ice growth/melt [PSU/m2/s] |
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| 254 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_sni !: salt flux due to ice growth/melt [PSU/m2/s] |
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| 255 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_opw !: salt flux due to ice growth/melt [PSU/m2/s] |
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| 256 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_bri !: salt flux due to brine rejection [PSU/m2/s] |
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| 257 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_dyn !: salt flux due to porous ridged ice formation [PSU/m2/s] |
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| 258 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_res !: residual salt flux due to correction of ice thickness [PSU/m2/s] |
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| 259 | |
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| 260 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sfx_sub !: salt flux due to ice sublimation |
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| 261 | |
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| 262 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_bog !: total heat flux causing bottom ice growth [W.m-2] |
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| 263 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_bom !: total heat flux causing bottom ice melt [W.m-2] |
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| 264 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_sum !: total heat flux causing surface ice melt [W.m-2] |
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| 265 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_opw !: total heat flux causing open water ice formation [W.m-2] |
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| 266 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_dif !: total heat flux causing Temp change in the ice [W.m-2] |
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| 267 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_snw !: heat flux for snow melt [W.m-2] |
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| 268 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_err_dif !: heat flux remaining due to change in non-solar flux [W.m-2] |
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| 269 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_err_rem !: heat flux error after heat remapping [W.m-2] |
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| 270 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qt_atm_oi !: heat flux available for thermo transformations [W.m-2] |
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| 271 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: qt_oce_ai !: heat flux remaining at the end of thermo transformations [W.m-2] |
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| 272 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: wfx_err_sub !: mass flux error after sublimation [kg.m-2.s-1] |
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| 273 | |
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| 274 | ! heat flux associated with ice-atmosphere mass exchange |
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| 275 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_sub !: heat flux for sublimation [W.m-2] |
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| 276 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_spr !: heat flux of the snow precipitation [W.m-2] |
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| 277 | |
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| 278 | ! heat flux associated with ice-ocean mass exchange |
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| 279 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_thd !: ice-ocean heat flux from thermo processes (icethd_dh) [W.m-2] |
|---|
| 280 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_dyn !: ice-ocean heat flux from ridging [W.m-2] |
|---|
| 281 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hfx_res !: residual heat flux due to correction of ice thickness [W.m-2] |
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| 282 | |
|---|
| 283 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: rn_amax_2d !: maximum ice concentration 2d array |
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| 284 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qtr_ice_bot !: transmitted solar radiation under ice |
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| 285 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: t1_ice !: temperature of the first layer (ln_cndflx=T) [K] |
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| 286 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: cnd_ice !: effective conductivity at the top of ice/snow (ln_cndflx=T) [W.m-2.K-1] |
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| 287 | |
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| 288 | !!---------------------------------------------------------------------- |
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| 289 | !! * Ice global state variables |
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| 290 | !!---------------------------------------------------------------------- |
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| 291 | !! Variables defined for each ice category |
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| 292 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: h_i !: Ice thickness (m) |
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| 293 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_i !: Ice fractional areas (concentration) |
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| 294 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: v_i !: Ice volume per unit area (m) |
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| 295 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: v_s !: Snow volume per unit area(m) |
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| 296 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: h_s !: Snow thickness (m) |
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| 297 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: t_su !: Sea-Ice Surface Temperature (K) |
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| 298 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: s_i !: Sea-Ice Bulk salinity (ppt) |
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| 299 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: sv_i !: Sea-Ice Bulk salinity times volume per area (ppt.m) |
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| 300 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: o_i !: Sea-Ice Age (s) |
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| 301 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: oa_i !: Sea-Ice Age times ice area (s) |
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| 302 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: bv_i !: brine volume |
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| 303 | |
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| 304 | !! Variables summed over all categories, or associated to all the ice in a single grid cell |
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| 305 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: u_ice, v_ice !: components of the ice velocity (m/s) |
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| 306 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: vt_i , vt_s !: ice and snow total volume per unit area (m) |
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| 307 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: at_i !: ice total fractional area (ice concentration) |
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| 308 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: ato_i !: =1-at_i ; total open water fractional area |
|---|
| 309 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: et_i , et_s !: ice and snow total heat content |
|---|
| 310 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: tm_i !: mean ice temperature over all categories |
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| 311 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: tm_s !: mean snw temperature over all categories |
|---|
| 312 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: bvm_i !: brine volume averaged over all categories |
|---|
| 313 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: sm_i !: mean sea ice salinity averaged over all categories [PSU] |
|---|
| 314 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: tm_su !: mean surface temperature over all categories |
|---|
| 315 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hm_i !: mean ice thickness over all categories |
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| 316 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: hm_s !: mean snow thickness over all categories |
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| 317 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: om_i !: mean ice age over all categories |
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| 318 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: tau_icebfr !: ice friction with bathy (landfast param activated) |
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| 319 | |
|---|
| 320 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: t_s !: Snow temperatures [K] |
|---|
| 321 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: e_s !: Snow enthalpy [J/m2] |
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| 322 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: t_i !: ice temperatures [K] |
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| 323 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: e_i !: ice enthalpy [J/m2] |
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| 324 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: sz_i !: ice salinity [PSU] |
|---|
| 325 | |
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| 326 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_ip !: melt pond fraction per grid cell area |
|---|
| 327 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: v_ip !: melt pond volume per grid cell area [m] |
|---|
| 328 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_ip_frac !: melt pond volume per ice area |
|---|
| 329 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: h_ip !: melt pond thickness [m] |
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| 330 | |
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| 331 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: at_ip !: total melt pond fraction |
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| 332 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: vt_ip !: total melt pond volume per unit area [m] |
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| 333 | |
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| 334 | !!---------------------------------------------------------------------- |
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| 335 | !! * Old values of global variables |
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| 336 | !!---------------------------------------------------------------------- |
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| 337 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: v_s_b, v_i_b, h_s_b, h_i_b, h_ip_b !: snow and ice volumes/thickness |
|---|
| 338 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: a_i_b, sv_i_b, oa_i_b !: |
|---|
| 339 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: e_s_b !: snow heat content |
|---|
| 340 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:,:) :: e_i_b !: ice temperatures |
|---|
| 341 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: u_ice_b, v_ice_b !: ice velocity |
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| 342 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: at_i_b !: ice concentration (total) |
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| 343 | |
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| 344 | !!---------------------------------------------------------------------- |
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| 345 | !! * Ice thickness distribution variables |
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| 346 | !!---------------------------------------------------------------------- |
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| 347 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: hi_max !: Boundary of ice thickness categories in thickness space |
|---|
| 348 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: hi_mean !: Mean ice thickness in catgories |
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| 349 | ! |
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| 350 | !!---------------------------------------------------------------------- |
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| 351 | !! * Ice diagnostics |
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| 352 | !!---------------------------------------------------------------------- |
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| 353 | ! thd refers to changes induced by thermodynamics |
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| 354 | ! trp '' '' '' advection (transport of ice) |
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| 355 | ! |
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| 356 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_trp_vi !: transport of ice volume |
|---|
| 357 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_trp_vs !: transport of snw volume |
|---|
| 358 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_trp_ei !: transport of ice enthalpy (W/m2) |
|---|
| 359 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_trp_es !: transport of snw enthalpy (W/m2) |
|---|
| 360 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_trp_sv !: transport of salt content |
|---|
| 361 | ! |
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| 362 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_heat !: snw/ice heat content variation [W/m2] |
|---|
| 363 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_sice !: ice salt content variation [] |
|---|
| 364 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_vice !: ice volume variation [m/s] |
|---|
| 365 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: diag_vsnw !: snw volume variation [m/s] |
|---|
| 366 | |
|---|
| 367 | ! |
|---|
| 368 | !!---------------------------------------------------------------------- |
|---|
| 369 | !! * SIMIP extra diagnostics |
|---|
| 370 | !!---------------------------------------------------------------------- |
|---|
| 371 | ! Extra sea ice diagnostics to address the data request |
|---|
| 372 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: t_si !: Temperature at Snow-ice interface (K) |
|---|
| 373 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: tm_si !: mean temperature at the snow-ice interface (K) |
|---|
| 374 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qcn_ice_bot !: Bottom conduction flux (W/m2) |
|---|
| 375 | REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: qcn_ice_top !: Surface conduction flux (W/m2) |
|---|
| 376 | |
|---|
| 377 | ! |
|---|
| 378 | !!---------------------------------------------------------------------- |
|---|
| 379 | !! NEMO/ICE 4.0 , NEMO Consortium (2018) |
|---|
| 380 | !! $Id$ |
|---|
| 381 | !! Software governed by the CeCILL license (see ./LICENSE) |
|---|
| 382 | !!---------------------------------------------------------------------- |
|---|
| 383 | CONTAINS |
|---|
| 384 | |
|---|
| 385 | FUNCTION ice_alloc() |
|---|
| 386 | !!----------------------------------------------------------------- |
|---|
| 387 | !! *** Routine ice_alloc *** |
|---|
| 388 | !!----------------------------------------------------------------- |
|---|
| 389 | INTEGER :: ice_alloc |
|---|
| 390 | ! |
|---|
| 391 | INTEGER :: ierr(15), ii |
|---|
| 392 | !!----------------------------------------------------------------- |
|---|
| 393 | ierr(:) = 0 |
|---|
| 394 | |
|---|
| 395 | ii = 1 |
|---|
| 396 | ALLOCATE( u_oce (jpi,jpj) , v_oce (jpi,jpj) , ht_i_new (jpi,jpj) , strength(jpi,jpj) , & |
|---|
| 397 | & stress1_i(jpi,jpj) , stress2_i(jpi,jpj) , stress12_i(jpi,jpj) , & |
|---|
| 398 | & delta_i (jpi,jpj) , divu_i (jpi,jpj) , shear_i (jpi,jpj) , STAT=ierr(ii) ) |
|---|
| 399 | |
|---|
| 400 | ii = ii + 1 |
|---|
| 401 | ALLOCATE( t_bo (jpi,jpj) , wfx_snw_sni(jpi,jpj) , & |
|---|
| 402 | & wfx_snw (jpi,jpj) , wfx_snw_dyn(jpi,jpj) , wfx_snw_sum(jpi,jpj) , wfx_snw_sub(jpi,jpj) , & |
|---|
| 403 | & wfx_ice (jpi,jpj) , wfx_sub (jpi,jpj) , wfx_ice_sub(jpi,jpj) , wfx_lam (jpi,jpj) , & |
|---|
| 404 | & wfx_pnd (jpi,jpj) , & |
|---|
| 405 | & wfx_bog (jpi,jpj) , wfx_dyn (jpi,jpj) , wfx_bom(jpi,jpj) , wfx_sum(jpi,jpj) , & |
|---|
| 406 | & wfx_res (jpi,jpj) , wfx_sni (jpi,jpj) , wfx_opw(jpi,jpj) , wfx_spr(jpi,jpj) , & |
|---|
| 407 | & afx_tot (jpi,jpj) , rn_amax_2d(jpi,jpj), & |
|---|
| 408 | & qsb_ice_bot(jpi,jpj) , qlead (jpi,jpj) , & |
|---|
| 409 | & sfx_res (jpi,jpj) , sfx_bri (jpi,jpj) , sfx_dyn(jpi,jpj) , sfx_sub(jpi,jpj) , sfx_lam(jpi,jpj) , & |
|---|
| 410 | & sfx_bog (jpi,jpj) , sfx_bom (jpi,jpj) , sfx_sum(jpi,jpj) , sfx_sni(jpi,jpj) , sfx_opw(jpi,jpj) , & |
|---|
| 411 | & hfx_res (jpi,jpj) , hfx_snw (jpi,jpj) , hfx_sub(jpi,jpj) , & |
|---|
| 412 | & qt_atm_oi (jpi,jpj) , qt_oce_ai (jpi,jpj) , fhld (jpi,jpj) , & |
|---|
| 413 | & hfx_sum (jpi,jpj) , hfx_bom (jpi,jpj) , hfx_bog(jpi,jpj) , hfx_dif(jpi,jpj) , & |
|---|
| 414 | & hfx_opw (jpi,jpj) , hfx_thd (jpi,jpj) , hfx_dyn(jpi,jpj) , hfx_spr(jpi,jpj) , & |
|---|
| 415 | & hfx_err_dif(jpi,jpj) , hfx_err_rem(jpi,jpj) , wfx_err_sub(jpi,jpj) , STAT=ierr(ii) ) |
|---|
| 416 | |
|---|
| 417 | ! * Ice global state variables |
|---|
| 418 | ii = ii + 1 |
|---|
| 419 | ALLOCATE( qtr_ice_bot(jpi,jpj,jpl) , cnd_ice(jpi,jpj,jpl) , t1_ice(jpi,jpj,jpl) , & |
|---|
| 420 | & h_i (jpi,jpj,jpl) , a_i (jpi,jpj,jpl) , v_i (jpi,jpj,jpl) , & |
|---|
| 421 | & v_s (jpi,jpj,jpl) , h_s (jpi,jpj,jpl) , t_su (jpi,jpj,jpl) , & |
|---|
| 422 | & s_i (jpi,jpj,jpl) , sv_i (jpi,jpj,jpl) , o_i (jpi,jpj,jpl) , & |
|---|
| 423 | & oa_i (jpi,jpj,jpl) , bv_i (jpi,jpj,jpl) , STAT=ierr(ii) ) |
|---|
| 424 | |
|---|
| 425 | ii = ii + 1 |
|---|
| 426 | ALLOCATE( u_ice(jpi,jpj) , v_ice(jpi,jpj) , & |
|---|
| 427 | & vt_i (jpi,jpj) , vt_s (jpi,jpj) , at_i(jpi,jpj) , ato_i(jpi,jpj) , & |
|---|
| 428 | & et_i (jpi,jpj) , et_s (jpi,jpj) , tm_i(jpi,jpj) , tm_s (jpi,jpj) , & |
|---|
| 429 | & sm_i (jpi,jpj) , tm_su(jpi,jpj) , hm_i(jpi,jpj) , hm_s (jpi,jpj) , & |
|---|
| 430 | & om_i (jpi,jpj) , bvm_i(jpi,jpj) , tau_icebfr(jpi,jpj) , STAT=ierr(ii) ) |
|---|
| 431 | |
|---|
| 432 | ii = ii + 1 |
|---|
| 433 | ALLOCATE( t_s(jpi,jpj,nlay_s,jpl) , e_s(jpi,jpj,nlay_s,jpl) , STAT=ierr(ii) ) |
|---|
| 434 | |
|---|
| 435 | ii = ii + 1 |
|---|
| 436 | ALLOCATE( t_i(jpi,jpj,nlay_i,jpl) , e_i(jpi,jpj,nlay_i,jpl) , sz_i(jpi,jpj,nlay_i,jpl) , STAT=ierr(ii) ) |
|---|
| 437 | |
|---|
| 438 | ii = ii + 1 |
|---|
| 439 | ALLOCATE( a_ip(jpi,jpj,jpl) , v_ip(jpi,jpj,jpl) , a_ip_frac(jpi,jpj,jpl) , h_ip(jpi,jpj,jpl) , STAT = ierr(ii) ) |
|---|
| 440 | |
|---|
| 441 | ii = ii + 1 |
|---|
| 442 | ALLOCATE( at_ip(jpi,jpj) , vt_ip(jpi,jpj) , STAT = ierr(ii) ) |
|---|
| 443 | |
|---|
| 444 | ! * Old values of global variables |
|---|
| 445 | ii = ii + 1 |
|---|
| 446 | ALLOCATE( v_s_b (jpi,jpj,jpl) , v_i_b (jpi,jpj,jpl) , h_s_b(jpi,jpj,jpl) , h_i_b(jpi,jpj,jpl), h_ip_b(jpi,jpj,jpl), & |
|---|
| 447 | & a_i_b (jpi,jpj,jpl) , sv_i_b(jpi,jpj,jpl) , e_i_b(jpi,jpj,nlay_i,jpl) , e_s_b(jpi,jpj,nlay_s,jpl) , & |
|---|
| 448 | & oa_i_b(jpi,jpj,jpl) , STAT=ierr(ii) ) |
|---|
| 449 | |
|---|
| 450 | ii = ii + 1 |
|---|
| 451 | ALLOCATE( u_ice_b(jpi,jpj) , v_ice_b(jpi,jpj) , at_i_b(jpi,jpj) , STAT=ierr(ii) ) |
|---|
| 452 | |
|---|
| 453 | ! * Ice thickness distribution variables |
|---|
| 454 | ii = ii + 1 |
|---|
| 455 | ALLOCATE( hi_max(0:jpl), hi_mean(jpl), STAT=ierr(ii) ) |
|---|
| 456 | |
|---|
| 457 | ! * Ice diagnostics |
|---|
| 458 | ii = ii + 1 |
|---|
| 459 | ALLOCATE( diag_trp_vi(jpi,jpj) , diag_trp_vs (jpi,jpj) , diag_trp_ei(jpi,jpj), & |
|---|
| 460 | & diag_trp_es(jpi,jpj) , diag_trp_sv (jpi,jpj) , diag_heat (jpi,jpj), & |
|---|
| 461 | & diag_sice (jpi,jpj) , diag_vice (jpi,jpj) , diag_vsnw (jpi,jpj), STAT=ierr(ii) ) |
|---|
| 462 | |
|---|
| 463 | ! * SIMIP diagnostics |
|---|
| 464 | ii = ii + 1 |
|---|
| 465 | ALLOCATE( t_si(jpi,jpj,jpl) , tm_si(jpi,jpj) , qcn_ice_bot(jpi,jpj,jpl) , qcn_ice_top(jpi,jpj,jpl) , STAT = ierr(ii) ) |
|---|
| 466 | |
|---|
| 467 | ice_alloc = MAXVAL( ierr(:) ) |
|---|
| 468 | IF( ice_alloc /= 0 ) CALL ctl_stop( 'STOP', 'ice_alloc: failed to allocate arrays.' ) |
|---|
| 469 | ! |
|---|
| 470 | END FUNCTION ice_alloc |
|---|
| 471 | |
|---|
| 472 | #else |
|---|
| 473 | !!---------------------------------------------------------------------- |
|---|
| 474 | !! Default option Empty module NO SI3 sea-ice model |
|---|
| 475 | !!---------------------------------------------------------------------- |
|---|
| 476 | #endif |
|---|
| 477 | |
|---|
| 478 | !!====================================================================== |
|---|
| 479 | END MODULE ice |
|---|
