/[MITgcm]/MITgcm/pkg/thsice/THSICE_PARAMS.h

Diff of /MITgcm/pkg/thsice/THSICE_PARAMS.h

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-revision 1.10 by heimbach,
Mon Apr 16 22:38:24 2007 UTC
+revision 1.11 by jmc,
Sun Apr 29 23:48:44 2007 UTC
 Line 15 
 C---------------------------------------
  C--   COMMON / THSICE_PHYSPAR_R / physical (real) parameter
  C.. densities
- C     rhos      ::   density of snow (kg/m^3)
+ C     rhos      ::   density of snow [kg/m^3]
- C     rhoi      ::   density of ice (kg/m^3)
+ C     rhoi      ::   density of ice [kg/m^3]
- C     rhosw     ::   density of seawater (kg/m^3)
+ C     rhosw     ::   density of seawater [kg/m^3]
- C     rhofw     ::   density of fresh water (kg/m^3)
+ C     rhofw     ::   density of fresh water [kg/m^3]
- C     rhoiw     ::   ocean-ice density difference (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     cpIce     ::   specific heat of fresh ice [J/kg/K]
- C     cpwater   ::   specific heat of water (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     kIce      ::   thermal conductivity of pure ice [W/m/K]
- C     ksnow     ::   thermal conductivity of snow (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     bMeltCoef ::   base-melting heat transfer coefficient
+ C                    (between ice & water) [no unit]
  C .. latent heat
- C     Lfresh    ::   latent heat of melting of pure ice (J/kg)
+ C     Lfresh    ::   latent heat of melting of pure ice [J/kg]
  C .. Enthalpy
- C     qsnow     ::   snow enthalpy (J/kg)
+ 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     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     snowAgTime  :: snow aging time scale [s]
  C .. Solar parameters
- C     i0        ::   fraction of penetrating solar rad
+ C     i0swFrac  ::   fraction of penetrating solar rad
- C     ksolar    ::   bulk solar abs coeff of sea ice (m-1)
+ C     ksolar    ::   bulk solar abs coeff of sea ice [m^-1]
+ C     dhSnowLin ::   half slope of linear distribution of snow thickness within
+ C                    the grid-cell (from hSnow-dhSnow to hSnow+dhSnow, if full
+ C                    ice & snow cover) [m] ; (only used for SW radiation).
  C .. Salinity
- C     saltice   ::   salinity of ice (o/oo)
+ C     saltIce   ::   salinity of ice [g/kg]
- C     S_winton  ::   winton salinity of ice (o/oo)
+ C     S_winton  ::   Winton salinity of ice [g/kg]
- C     mu_Tf     ::   Tf:brine salinity ratio (C/ppt)
  C .. melting
- C     Tf0kel    ::   Freezing temp of fresh ice in Kelvin = 273.15
+ C     Tf0kel    ::   Freezing temp of fresh water in Kelvin = 273.15
- C     Tmlt1     ::    melting temp; depends on S (C)
+ C     mu_Tf     ::   linear dependance of melting temperature on Salinity [oC/psu]
+ C                     Tf(sea-water) = -mu_Tf * S
+ C     Tmlt1     ::   Winton melting temperature: Tmlt1 = -mu_Tf * S_winton
+ C     Terrmax   ::   Temperature convergence criteria [oC]
  C .. Min/Max
- C     himin     ::   minimum thickness for ice (m)
+ C     hIceMin   ::   Minimum ice  thickness [m]
- C     Terrmax   ::   temperature convergence precision (C)
+ C     hiMax     ::   Maximum ice  thickness [m]
- C     hiMax     ::   Maximum thickness for ice  (m)
+ C     hsMax     ::   Maximum snow thickness [m]
- C     hsMax     ::   Maximum thickness for snow (m)
  C .. for fractional ice
- C     iceMaskmax :: maximum Ice fraction (=1 for no fractional ice)
+ C     iceMaskMax  :: maximum Ice fraction (=1 for no fractional ice)
- C     iceMaskmin :: mimimum 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     fracEnFreez :: fraction of energy going to lateral freezing (vs height increase)
- C     frac_energy:: fraction of energy going to melting (=0 for no fract. ice)
+ C     fracEnMelt  :: fraction of energy going to lateral melting (vs height decrease)
- C     hihig      :: ice height above which freezing only occurs over open ocean
+ C                                         (=0 for no fract. ice)
- C                                        (=large for no fractional ice)
+ C     hThinIce    :: ice height above which fracEnMelt/Freez are applied [m]
+ C                                         (=hIceMin for no fractional ice)
+ C     hThickIce   :: ice height below which fracEnMelt/Freez are applied [m]
+ C                                         (=large for no fractional ice)
+ C     hNewIceMax  :: new ice maximum thickness [m]
  C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
        COMMON / THSICE_PHYSPAR_R /
       &  rhos, rhoi, rhosw, rhofw, rhoiw,
-      &  cpice, cpwater,
+      &  cpIce, cpWater,
-      &  kice, ksnow,
+      &  kIce, kSnow,
-      &  transcoef, Lfresh, qsnow,
+      &  bMeltCoef, Lfresh, qsnow,
       &  albColdSnow, albWarmSnow, tempSnowAlb,
       &  albOldSnow, hNewSnowAge, snowAgTime,
       &  albIceMax, albIceMin, hAlbIce, hAlbSnow,
-      &  i0, ksolar,
+      &  i0swFrac, ksolar, dhSnowLin,
-      &  saltice, S_winton, mu_Tf,
+      &  saltIce, S_winton, mu_Tf,
-      &  Tf0kel, Tmlt1,
+      &  Tf0kel, Tmlt1, Terrmax,
-      &  himin, Terrmax, hiMax, hsMax,
+      &  hIceMin, hiMax, hsMax,
-      &  iceMaskmax, iceMaskmin, himin0,
+      &  iceMaskMax, iceMaskMin,
-      &  frac_energy, hihig
+      &  fracEnMelt, fracEnFreez,
+      &  hThinIce, hThickIce, hNewIceMax
        _RL  rhos
        _RL  rhoi
        _RL  rhosw
        _RL  rhofw
        _RL  rhoiw
-       _RL  cpice
+       _RL  cpIce
-       _RL  cpwater
+       _RL  cpWater
-       _RL  kice
+       _RL  kIce
-       _RL  ksnow
+       _RL  kSnow
-       _RL  transcoef
+       _RL  bMeltCoef
        _RL  Lfresh
        _RL  qsnow
        _RL  albColdSnow
-Line 104 
 C---+----1----+----2----+----3----+----4
+Line 114 
 C---+----1----+----2----+----3----+----4
        _RL  albIceMin
        _RL  hAlbIce
        _RL  hAlbSnow
-       _RL  i0
+       _RL  i0swFrac
        _RL  ksolar
-       _RL  saltice
+       _RL  dhSnowLin
+       _RL  saltIce
        _RL  S_winton
        _RL  mu_Tf
        _RL  Tf0kel
        _RL  Tmlt1
-       _RL  himin
        _RL  Terrmax
+       _RL  hIceMin
        _RL  hiMax
        _RL  hsMax
-       _RL iceMaskmax
+       _RL iceMaskMax
-       _RL iceMaskmin
+       _RL iceMaskMin
-       _RL himin0
+       _RL fracEnMelt
-       _RL frac_energy
+       _RL fracEnFreez
-       _RL hihig
+       _RL hThinIce
+       _RL hThickIce
+       _RL hNewIceMax
  C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|

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