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C $Header: /u/gcmpack/MITgcm/pkg/seaice/SEAICE_PARAMS.h,v 1.34 2007/04/22 19:56:22 mlosch Exp $ |
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C $Name: $ |
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C /==========================================================\ |
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C | SEAICE_PARAMS.h | |
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C | o Basic parameter header for sea ice model. | |
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C \==========================================================/ |
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C-- COMMON /SEAICE_PARM_L/ Logical parameters of sea ice model. |
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C |
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C SEAICEwriteState - If true, write sea ice state to file; |
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C default is false. |
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C SEAICEuseDYNAMICS - If false, do not use dynamics; |
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C default is to use dynamics. |
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C SEAICEuseEVP - If false, use Zhangs LSR solver for VP equations |
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C if true use elastic viscous plastic solver |
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C SEAICEuseEVPpickup - Set to false in order to start EVP solver with |
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C non-EVP pickup files. Default is true. |
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C Applied only if SEAICEuseEVP=.TRUE. |
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C SEAICEuseFluxForm :: use flux form for advection and diffusion |
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C of seaice |
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C SEAICEuseFlooding :: turn on scheme to convert submerged snow into ice |
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C SEAICEadvSnow :: turn on advection of snow (does not work with |
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C non-default Leap-frog scheme for advection) |
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C useHB87stressCoupling :: use an intergral over ice and ocean surface |
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C layer to define surface stresses on ocean |
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C following Hibler and Bryan (1987, JPO) |
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C SEAICE_no_slip :: apply no slip boundary conditions to seaice velocity |
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C SEAICE_clipVelocities :: clip velocities to +/- 40cm/s |
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C SEAICE_maskRHS :: mask the RHS of the solver where there is no ice |
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C SEAICE_tave_mdsio :: write TimeAverage output using MDSIO |
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C SEAICE_dump_mdsio :: write snap-shot output using MDSIO |
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C SEAICE_mon_stdio :: write monitor to std-outp |
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C SEAICE_tave_mnc :: write TimeAverage output using MNC |
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C SEAICE_dump_mnc :: write snap-shot output using MNC |
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C SEAICE_mon_mnc :: write monitor to netcdf file |
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LOGICAL |
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& SEAICEwriteState, SEAICEuseDYNAMICS, SEAICEuseEVP, |
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& SEAICEuseEVPpickup, SEAICEuseFlooding, SEAICEadvSnow, |
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& SEAICEuseFluxForm, useHB87stressCoupling, SEAICE_no_slip, |
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& SEAICE_clipVelocities, SEAICE_maskRHS, |
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& SEAICE_tave_mdsio, SEAICE_dump_mdsio, SEAICE_mon_stdio, |
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& SEAICE_tave_mnc, SEAICE_dump_mnc, SEAICE_mon_mnc |
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COMMON /SEAICE_PARM_L/ |
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& SEAICEwriteState, SEAICEuseDYNAMICS, SEAICEuseEVP, |
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& SEAICEuseEVPpickup, SEAICEuseFlooding, SEAICEadvSnow, |
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& SEAICEuseFluxForm, useHB87stressCoupling, SEAICE_no_slip, |
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& SEAICE_clipVelocities, SEAICE_maskRHS, |
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& SEAICE_tave_mdsio, SEAICE_dump_mdsio, SEAICE_mon_stdio, |
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& SEAICE_tave_mnc, SEAICE_dump_mnc, SEAICE_mon_mnc |
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C-- COMMON /SEAICE_PARM_I/ Integer valued parameters of sea ice model. |
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C LAD - time stepping used for sea-ice advection: |
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C 1 = LEAPFROG, 2 = BACKWARD EULER. |
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C IMAX_TICE - number of iterations for ice heat budget 10 |
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C SEAICEadvScheme - sets the advection scheme for thickness and area |
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C SEAICEadvSchArea - sets the advection scheme for area |
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C SEAICEadvSchHeff - sets the advection scheme for effective thickness |
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C (=volume) and snow thickness if available |
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C SEAICEadvSchEnth - sets the advection scheme for sea-ice enthalphy |
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C SEAICEadvSchSnow - sets the advection scheme for snow on sea-ice |
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C |
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INTEGER LAD, IMAX_TICE |
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INTEGER SEAICEadvScheme |
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INTEGER SEAICEadvSchArea |
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INTEGER SEAICEadvSchHeff |
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INTEGER SEAICEadvSchEnth |
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INTEGER SEAICEadvSchSnow |
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INTEGER SEAICE_debugPointX |
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INTEGER SEAICE_debugPointY |
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COMMON /SEAICE_PARM_I/ |
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& LAD, IMAX_TICE, |
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& SEAICEadvScheme, |
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& SEAICEadvSchArea, |
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& SEAICEadvSchHeff, |
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& SEAICEadvSchEnth, |
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& SEAICEadvSchSnow, |
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& SEAICE_debugPointX, |
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& SEAICE_debugPointY |
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C-- COMMON /SEAICE_PARM_C/ Character valued sea ice model parameters. |
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C uwindFile - File containing uwind |
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C vwindFile - File containing vwind |
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C atempFile - File containing atemp |
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C aqhFile - File containing aqh |
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C lwdownFile - File containing lwdown |
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C swdownFile - File containing swdown |
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C precipFile - File containing precip |
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C evapFile - File containing evap |
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C runoffFile - File containing runoffF |
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C HeffFile - File containing initial sea-ice thickness |
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C !!! NOTE !!! Initial sea-ice thickness can also be set using |
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C SEAICE_initialHEFF below. But a constant initial condition |
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C can mean large artificial fluxes of heat and freshwater in |
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C the surface layer during the first model time step. |
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C |
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CHARACTER*(MAX_LEN_FNAM) uwindFile |
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CHARACTER*(MAX_LEN_FNAM) vwindFile |
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CHARACTER*(MAX_LEN_FNAM) atempFile |
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CHARACTER*(MAX_LEN_FNAM) aqhFile |
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CHARACTER*(MAX_LEN_FNAM) lwdownFile |
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CHARACTER*(MAX_LEN_FNAM) swdownFile |
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CHARACTER*(MAX_LEN_FNAM) precipFile |
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CHARACTER*(MAX_LEN_FNAM) evapFile |
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CHARACTER*(MAX_LEN_FNAM) runoffFile |
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CHARACTER*(MAX_LEN_FNAM) HeffFile |
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COMMON /SEAICE_PARM_C/ uwindFile, vwindFile, atempFile, aqhFile, |
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& lwdownFile, swdownFile, precipFile, evapFile, runoffFile, |
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& HeffFile |
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C-- COMMON /SEAICE_PARM_RL/ Real valued parameters of sea ice model. |
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C SEAICE_deltaTtherm - Seaice timestep for thermodynamic equations (s) |
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C SEAICE_deltaTdyn - Seaice timestep for dynamic solver (s) |
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C SEAICE_deltaTevp - Seaice timestep for EVP solver (s) |
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C SEAICE_elasticParm - parameter that sets relaxation timescale |
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C T = SEAICE_elasticParm * SEAICE_deltaTdyn |
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C SEAICE_monFreq - SEAICE monitor frequency. (s) |
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C SEAICE_dumpFreq - SEAICE dump frequency. (s) |
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C SEAICE_taveFreq - SEAICE time-averaging frequency. (s) |
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C SEAICE_initialHEFF - initial sea-ice thickness (m) |
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C SEAICE_rhoAir - density of air (kg/m^3) |
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C SEAICE_rhoIce - density of sea ice (kg/m^3) |
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C SEAICE_drag - air-ice drag coefficient |
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C OCEAN_drag - air-ocean drag coefficient |
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C SEAICE_waterDrag - water-ice drag coefficient * water density |
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C SEAICE_dryIceAlb - winter albedo |
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C SEAICE_wetIceAlb - summer albedo |
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C SEAICE_drySnowAlb - dry snow albedo |
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C SEAICE_wetSnowAlb - wet snow albedo |
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C SEAICE_waterAlbedo - water albedo |
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C SEAICE_strength - sea-ice strength Pstar |
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C SEAICE_eccen - sea-ice eccentricity of the elliptical yield curve |
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C SEAICE_sensHeat - buld sensible heat transfer coefficient |
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C = (sensible heat transfer coefficient) |
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C x (heat capacity of air) |
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C x (density of air) |
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C SEAICE_latentWater - bulk latent heat transfer coefficient for water |
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C = (latent heat transfer coefficient for water) |
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C x (specific latent heat water to water vapor) |
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C x (density of air) |
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C SEAICE_latentIce - bulk latent heat transfer coefficient for ice |
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C = (latent heat transfer coefficient for ice) |
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C x (latent heat ice to water vapor) |
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C x (density of air) |
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C SEAICE_iceConduct - sea-ice conductivity |
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C SEAICE_snowConduct - snow conductivity |
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C SEAICE_emissivity - Stefan-Boltzman constant * emissivity |
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C SEAICE_snowThick - cutoff snow thickness |
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C SEAICE_shortwave - penetration shortwave radiation factor |
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C SEAICE_freeze - FREEZING TEMP. OF SEA WATER |
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C SEAICEstressFactor - factor by which ice affects wind stress (default=1) |
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C LSR_ERROR - sets accuracy of LSR solver |
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C DIFF1 - parameter used in advect.F |
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C A22 - parameter used in growth.F |
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C HO - demarcation thickness between thin and |
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C thick ice: HO is a key ice-growth parameter |
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C WindForcingStart - Time of first wind forcing record (s) |
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C WindForcingEnd - Time of last wind forcing record (s) |
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C WindForcingPeriod - Period between wind forcing records (s) |
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C FluxForcingStart - Time of first flux forcing record (s) |
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C FluxForcingEnd - Time of last flux forcing record (s) |
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C FluxForcingPeriod - Period between flux forcing records (s) |
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C SSTForcingStart - Time of first SST forcing record (s) |
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C SSTForcingEnd - Time of last SST forcing record (s) |
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C SSTForcingPeriod - Period between SST forcing records (s) |
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C SSSForcingStart - Time of first SSS forcing record (s) |
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C SSSForcingEnd - Time of last SSS forcing record (s) |
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C SSSForcingPeriod - Period between SSS forcing records (s) |
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C StartingYear - Starting year of integration |
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C EndingYear - Ending year of integration |
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C SEAICE_airTurnAngle - turning angles of air-ice interfacial stress |
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C SEAICE_waterTurnAngle - and ice-water interfacial stress (in degrees) |
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C |
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_RL SEAICE_deltaTtherm, SEAICE_deltaTdyn, SEAICE_deltaTevp |
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_RL SEAICE_monFreq, SEAICE_dumpFreq, SEAICE_taveFreq |
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_RL SEAICE_initialHEFF |
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_RL SEAICE_gamma_t |
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_RL SEAICE_rhoAir, SEAICE_rhoIce |
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_RL SEAICE_drag, SEAICE_waterDrag, SEAICE_dryIceAlb |
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_RL SEAICE_wetIceAlb, SEAICE_drySnowAlb, SEAICE_wetSnowAlb |
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_RL SEAICE_waterAlbedo, SEAICE_strength, SEAICE_eccen |
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_RL SEAICE_sensHeat, SEAICE_latentWater, SEAICE_latentIce |
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_RL SEAICE_iceConduct, SEAICE_snowConduct, SEAICE_emissivity |
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_RL SEAICE_snowThick, SEAICE_shortwave, SEAICE_freeze |
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_RL SEAICEstressFactor |
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_RL OCEAN_drag, LSR_ERROR, DIFF1, A22, HO |
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_RL WindForcingStart, WindForcingEnd, WindForcingPeriod |
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_RL FluxForcingStart, FluxForcingEnd, FluxForcingPeriod |
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_RL SSTForcingStart, SSTForcingEnd, SSTForcingPeriod |
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_RL SSSForcingStart, SSSForcingEnd, SSSForcingPeriod |
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_RL StartingYear, EndingYear |
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_RL SEAICE_airTurnAngle, SEAICE_waterTurnAngle |
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_RL SEAICE_elasticParm |
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COMMON /SEAICE_PARM_RL/ |
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& SEAICE_deltaTtherm, SEAICE_deltaTdyn, |
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& SEAICE_deltaTevp, SEAICE_elasticParm, |
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& SEAICE_monFreq, SEAICE_dumpFreq, SEAICE_taveFreq, |
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& SEAICE_initialHEFF, |
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& SEAICE_rhoAir, SEAICE_rhoIce, |
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& SEAICE_drag, SEAICE_waterDrag, SEAICE_dryIceAlb, |
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& SEAICE_wetIceAlb, SEAICE_drySnowAlb, SEAICE_wetSnowAlb, |
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& SEAICE_waterAlbedo, SEAICE_strength, SEAICE_eccen, |
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& SEAICE_sensHeat, SEAICE_latentWater, SEAICE_latentIce, |
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& SEAICE_iceConduct, SEAICE_snowConduct, SEAICE_emissivity, |
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& SEAICE_snowThick, SEAICE_shortwave, SEAICE_freeze, |
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& SEAICEstressFactor, |
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& OCEAN_drag, LSR_ERROR, DIFF1, A22, HO, |
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& WindForcingStart, WindForcingEnd, WindForcingPeriod, |
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& FluxForcingStart, FluxForcingEnd, FluxForcingPeriod, |
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& SSTForcingStart, SSTForcingEnd, SSTForcingPeriod, |
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& SSSForcingStart, SSSForcingEnd, SSSForcingPeriod, |
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& StartingYear, EndingYear, |
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& SEAICE_airTurnAngle, SEAICE_waterTurnAngle, |
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& SEAICE_gamma_t |
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C-- COMMON /SEAICE_BOUND_RL/ Various bounding values |
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C MAX_HEFF - maximum ice thickness (m) |
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C MIN_ATEMP - minimum air temperature (deg C) |
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C MIN_LWDOWN - minimum downward longwave (W/m^2) |
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C MAX_TICE - maximum ice temperature (deg C) |
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C MIN_TICE - minimum ice temperature (deg C) |
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C SEAICE_EPS, SEAICE_EPS_SQ - used to reduce derivative singularities |
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C |
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_RL MAX_HEFF, MIN_ATEMP, MIN_LWDOWN, MAX_TICE, MIN_TICE |
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_RL SEAICE_EPS, SEAICE_EPS_SQ |
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COMMON /SEAICE_BOUND_RL/ |
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& MAX_HEFF, MIN_ATEMP, MIN_LWDOWN, MAX_TICE, MIN_TICE, |
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& SEAICE_EPS, SEAICE_EPS_SQ |
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C-- Constants used by sea-ice model |
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_RL ZERO , ONE , TWO |
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parameter ( ZERO = 0.0 _d 0, ONE = 1.0 _d 0, TWO = 2.0 _d 0 ) |
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_RL QUART , HALF |
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parameter ( QUART = 0.25 _d 0, HALF = 0.5 _d 0 ) |
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C-- identifiers for advected properties |
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INTEGER GAD_HEFF, GAD_AREA, GAD_QICE1, GAD_QICE2, GAD_SNOW |
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PARAMETER ( GAD_HEFF = 101, |
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& GAD_AREA = 102, |
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& GAD_QICE1 = 103, |
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& GAD_QICE2 = 104, |
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& GAD_SNOW = 105 ) |
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CEH3 ;;; Local Variables: *** |
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CEH3 ;;; mode:fortran *** |
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CEH3 ;;; End: *** |
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