C $Header: /home/ubuntu/mnt/e9_copy/MITgcm/pkg/thsice/THSICE_PARAMS.h,v 1.10 2007/04/16 22:38:24 heimbach Exp $ C $Name: $ #ifdef ALLOW_THSICE C *==========================================================* C | THSICE_PARAMS.h C | o Header file for Therm_SeaIce package parameters: C | - basic parameter ( I/O frequency, etc ...) C | - physical constants (used in therm_SeaIce pkg) C *==========================================================* C---------------------------------------------------------------------------- C.. Common blocks for almost everything that the sea ice model passes around. C---------------------------------------------------------------------------- C-- COMMON / THSICE_PHYSPAR_R / physical (real) parameter C.. densities C rhos :: density of snow (kg/m^3) C rhoi :: density of ice (kg/m^3) C rhosw :: density of seawater (kg/m^3) C rhofw :: density of fresh water (kg/m^3) C rhoiw :: ocean-ice density difference (kg/m^3) C.. specific heats C cpice :: specific heat of fresh ice (J/kg/K) C cpwater :: specific heat of water (J/kg/K) C .. thermal conductivity. QQ check units C kice :: thermal conductivity of pure ice (W/m/K) C ksnow :: thermal conductivity of snow (W/m/K) C .. heat transfer coefficient C transcoef :: transfer coef between ice and water (unitless) C .. latent heat C Lfresh :: latent heat of melting of pure ice (J/kg) C .. Enthalpy C qsnow :: snow enthalpy (J/kg) C .. Albedo C albColdSnow :: albedo of cold (=dry) new snow (Tsfc < tempSnowAlb) C albWarmSnow :: albedo of warm (=wet) new snow (Tsfc = 0) C tempSnowAlb :: temperature transition from ColdSnow to WarmSnow Alb. (oC) C albOldSnow :: albedo of old snow (snowAge > 35.d) C albIceMax :: max albedo of bare ice (thick ice) C albIceMin :: minimum ice albedo (very thin ice) C hAlbIce :: ice thickness for albedo transition: thin/thick ice albedo C hAlbSnow :: snow thickness for albedo transition: snow/ice albedo C hNewSnowAge :: new snow thickness that refresh the snow-age (by 1/e) C snowAgTime :: snow aging time scale (s) C .. Solar parameters C i0 :: fraction of penetrating solar rad C ksolar :: bulk solar abs coeff of sea ice (m-1) C .. Salinity C saltice :: salinity of ice (o/oo) C S_winton :: winton salinity of ice (o/oo) C mu_Tf :: Tf:brine salinity ratio (C/ppt) C .. melting C Tf0kel :: Freezing temp of fresh ice in Kelvin = 273.15 C Tmlt1 :: melting temp; depends on S (C) C .. Min/Max C himin :: minimum thickness for ice (m) C Terrmax :: temperature convergence precision (C) C hiMax :: Maximum thickness for ice (m) C hsMax :: Maximum thickness for snow (m) C .. for fractional ice C iceMaskmax :: maximum Ice fraction (=1 for no fractional ice) C iceMaskmin :: mimimum Ice fraction (=1 for no fractional ice) C himin0 :: minimum ice height (=himin for no fractional ice) C frac_energy:: fraction of energy going to melting (=0 for no fract. ice) C hihig :: ice height above which freezing only occurs over open ocean C (=large for no fractional ice) C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| COMMON / THSICE_PHYSPAR_R / & rhos, rhoi, rhosw, rhofw, rhoiw, & cpice, cpwater, & kice, ksnow, & transcoef, Lfresh, qsnow, & albColdSnow, albWarmSnow, tempSnowAlb, & albOldSnow, hNewSnowAge, snowAgTime, & albIceMax, albIceMin, hAlbIce, hAlbSnow, & i0, ksolar, & saltice, S_winton, mu_Tf, & Tf0kel, Tmlt1, & himin, Terrmax, hiMax, hsMax, & iceMaskmax, iceMaskmin, himin0, & frac_energy, hihig _RL rhos _RL rhoi _RL rhosw _RL rhofw _RL rhoiw _RL cpice _RL cpwater _RL kice _RL ksnow _RL transcoef _RL Lfresh _RL qsnow _RL albColdSnow _RL albWarmSnow _RL tempSnowAlb _RL albOldSnow _RL hNewSnowAge _RL snowAgTime _RL albIceMax _RL albIceMin _RL hAlbIce _RL hAlbSnow _RL i0 _RL ksolar _RL saltice _RL S_winton _RL mu_Tf _RL Tf0kel _RL Tmlt1 _RL himin _RL Terrmax _RL hiMax _RL hsMax _RL iceMaskmax _RL iceMaskmin _RL himin0 _RL frac_energy _RL hihig C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| C-- COMMON / THSICE_PAR_L / ice model (logical) parameters C stepFwd_oceMxL :: step forward mixed-layer T & S (slab-ocean) C thSIce_tave_mdsio :: write TimeAverage output using MDSIO C thSIce_snapshot_mdsio :: write snap-shot output using MDSIO C thSIce_mon_stdio :: write monitor to std-outp C thSIce_tave_mnc :: write TimeAverage output using MNC C thSIce_snapshot_mnc :: write snap-shot output using MNC C thSIce_mon_mnc :: write monitor to netcdf file C thSIce_pickup_read_mnc :: pickup read w/ MNC C thSIce_pickup_write_mnc :: pickup write w/ MNC C thSIce_pickup_write_mdsio :: pickup write w/ MDSIO COMMON / THSICE_PAR_L / & stepFwd_oceMxL, & thSIce_tave_mdsio, thSIce_snapshot_mdsio, thSIce_mon_stdio, & thSIce_tave_mnc, thSIce_snapshot_mnc, thSIce_mon_mnc, & thSIce_pickup_read_mnc, & thSIce_pickup_write_mdsio, & thSIce_pickup_write_mnc LOGICAL stepFwd_oceMxL LOGICAL thSIce_tave_mdsio, thSIce_snapshot_mdsio, thSIce_mon_stdio LOGICAL thSIce_tave_mnc, thSIce_snapshot_mnc, thSIce_mon_mnc LOGICAL thSIce_pickup_read_mnc LOGICAL thSIce_pickup_write_mdsio LOGICAL thSIce_pickup_write_mnc C-- COMMON / THSICE_PAR_I / ice model (integer) parameters C startIceModel :: =1 : start ice model at nIter0 ; =0 : use pickup files C :: -1 : start from a small pickup (without Mix.Layer) C nitMaxTsf :: maximum Nb of iter to find Surface Temp (Trsf) C thSIceAdvScheme :: thSIce Advection scheme selector COMMON / THSICE_PAR_I / & startIceModel, nitMaxTsf, thSIceAdvScheme INTEGER startIceModel INTEGER nitMaxTsf INTEGER thSIceAdvScheme C-- COMMON / THSICE_PAR_R / ice model (real) parameters C thSIce_deltaT :: ice model time-step, seaice thicken/extend [s] C thSIce_dtTemp :: ice model time-step, solve4temp [s] C ocean_deltaT :: ocean mixed-layer time-step [s] C tauRelax_MxL :: Relaxation time scale for MixLayer T & S [s] C hMxL_default :: default value for ocean MixLayer thickness [m] C sMxL_default :: default value for salinity in MixLayer [psu] C vMxL_default :: default value for ocean current velocity in MxL [m/s] C thSIce_diffK :: thickness (horizontal) diffusivity [m^2/s] C stressReduction :: reduction factor for wind-stress under sea-ice [0-1] C thSIce_taveFreq :: Frequency^-1 for time-Aver. output [s] C thSIce_diagFreq :: Frequency^-1 for diagnostic output [s] C thSIce_monFreq :: Frequency^-1 for monitor output [s] COMMON / THSICE_PAR_R / & thSIce_deltaT, thSIce_dtTemp, ocean_deltaT, tauRelax_MxL, & hMxL_default, sMxL_default, vMxL_default, & thSIce_diffK, stressReduction, & thSIce_taveFreq, thSIce_diagFreq, thSIce_monFreq _RL thSIce_deltaT, thSIce_dtTemp, ocean_deltaT, tauRelax_MxL _RL hMxL_default, sMxL_default, vMxL_default _RL thSIce_diffK, stressReduction _RL thSIce_taveFreq, thSIce_diagFreq, thSIce_monFreq C-- COMMON / THSICE_PAR_C / ice model (character) parameters C thSIceFract_InitFile :: File name for initial ice fraction C thSIceThick_InitFile :: File name for initial ice thickness C thSIceSnowH_InitFile :: File name for initial snow thickness C thSIceSnowA_InitFile :: File name for initial snow Age C thSIceEnthp_InitFile :: File name for initial ice enthalpy C thSIceTsurf_InitFile :: File name for initial surf. temp COMMON / THSICE_PAR_C / & thSIceFract_InitFile, & thSIceThick_InitFile, & thSIceSnowH_InitFile, & thSIceSnowA_InitFile, & thSIceEnthp_InitFile, & thSIceTsurf_InitFile CHARACTER*(MAX_LEN_FNAM) thSIceFract_InitFile CHARACTER*(MAX_LEN_FNAM) thSIceThick_InitFile CHARACTER*(MAX_LEN_FNAM) thSIceSnowH_InitFile CHARACTER*(MAX_LEN_FNAM) thSIceSnowA_InitFile CHARACTER*(MAX_LEN_FNAM) thSIceEnthp_InitFile CHARACTER*(MAX_LEN_FNAM) thSIceTsurf_InitFile #ifdef ALLOW_AUTODIFF_TAMC INTEGER iicekey INTEGER ikey_1, ikey_2, ikey_3, ikey_4 INTEGER MaxTsf PARAMETER ( MaxTsf = 20 ) #endif C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| #endif /* ALLOW_THSICE */ CEH3 ;;; Local Variables: *** CEH3 ;;; mode:fortran *** CEH3 ;;; End: ***