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C $Header: /u/gcmpack/MITgcm/pkg/aim_v23/aim_sice_impl.F,v 1.1 2004/04/08 00:14:09 jmc Exp $ |
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C $Name: $ |
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|
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#include "AIM_OPTIONS.h" |
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#ifdef ALLOW_THSICE |
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#include "THSICE_OPTIONS.h" |
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#endif |
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|
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CBOP |
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C !ROUTINE: AIM_SICE_IMPL |
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C !INTERFACE: |
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SUBROUTINE AIM_SICE_IMPL( |
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I FMASK, netSW, sFlx, |
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I Shf0, dShf, Evp0, dEvp, Slr0, dSlr, |
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U Tsurf, SHF, EVAP, SLRU, |
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O dTsurf, |
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I bi, bj, myTime, myIter, myThid) |
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|
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R AIM_SICE_IMPL |
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C | o AIM Interface to the implicit part of the sea-ice model |
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C *==========================================================* |
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C \ev |
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|
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C !USES: |
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IMPLICIT NONE |
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|
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C == Global variables === |
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C-- size for MITgcm & Physics package : |
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#include "AIM_SIZE.h" |
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|
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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|
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#include "AIM_FFIELDS.h" |
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#include "com_physcon.h" |
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c #include "com_physvar.h" |
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|
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#ifdef ALLOW_THSICE |
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#include "THSICE_SIZE.h" |
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#include "THSICE_PARAMS.h" |
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#include "THSICE_VARS.h" |
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#endif |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C FMASK :: sea-ice fraction [0-1] |
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C netSW :: net Short Wave surf. flux (+=down) [W/m2] |
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C sFlx :: net heat flux (+=down) except SW, function of surf. temp Ts: |
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C 0: Flux(Ts=0.oC) ; 1: Flux(Ts^n) ; 2: d.Flux/d.Ts(Ts^n) |
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C Shf0 :: sensible heat flux over freezing surf. |
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C dShf :: sensible heat flux derivative relative to surf. temp |
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C Evp0 :: evaporation computed over freezing surface (Ts=0.oC) |
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C dEvp :: evaporation derivative relative to surf. temp |
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C Slr0 :: upward long wave radiation over freezing surf. |
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C Tsurf :: surface temperature (2-dim) |
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C SHF :: sensible heat flux (2-dim) |
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C EVAP :: evaporation [g/(m^2 s)] (2-dim) |
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C SLRU :: sfc lw radiation (upward flux) (2-dim) |
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C dTsurf :: surf. temp change after 1 implicit time step [oC] |
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C bi,bj :: Tile index |
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C myTime :: Current time of simulation ( s ) |
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C myIter :: Current iteration number in simulation |
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C myThid :: Number of this instance of the routine |
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_RL FMASK(NGP), netSW(NGP), sFlx(NGP,0:2) |
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_RL Shf0(NGP), dShf(NGP), Evp0(NGP), dEvp(NGP) |
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_RL Slr0(NGP), dSlr(NGP) |
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_RL Tsurf(NGP), SHF(NGP), EVAP(NGP), SLRU(NGP) |
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_RL dTsurf(NGP) |
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INTEGER bi, bj, myIter, myThid |
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_RL myTime |
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CEOP |
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|
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#ifdef ALLOW_AIM |
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#ifdef ALLOW_THSICE |
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C == Local variables == |
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C J :: loop counters |
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INTEGER J |
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|
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C-- Physics tendency term |
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|
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IF ( useThSIce ) THEN |
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|
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DO J=1,NGP |
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C- total surface downward heat flux : |
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|
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C- initialize temp. changes and fresh water flux : |
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dTsurf(J) = 0. |
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ENDDO |
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|
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CALL THSICE_IMPL_TEMP( |
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I netSW, sFlx, |
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O dTsurf, |
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I bi, bj, myTime, myIter, myThid) |
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|
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C- Update Surf.Temp., Evap, Upward SW according to surf. temp. changes |
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DO J=1,NGP |
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IF ( dTsurf(J) .GT. 999. ) THEN |
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dTsurf(J)= tFreeze - Tsurf(J) |
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Tsurf(J) = tFreeze |
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SHF (J) = Shf0(J) |
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EVAP(J) = Evp0(J) |
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SLRU(J) = Slr0(J) |
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ELSE |
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Tsurf(J) = Tsurf(J)+ dTsurf(J) |
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SHF (J) = SHF (J) + dTsurf(J)*dShf(J) |
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EVAP(J) = EVAP(J) + dTsurf(J)*dEvp(J) |
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SLRU(J) = SLRU(J) + dTsurf(J)*dSlr(J) |
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ENDIF |
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ENDDO |
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|
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ENDIF |
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|
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#endif /* ALLOW_THSICE */ |
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#endif /* ALLOW_AIM */ |
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|
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RETURN |
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END |
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