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heimbach |
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C $Header: /u/gcmpack/MITgcm/pkg/seaice/seaice_growth.F,v 1.1 2006/12/14 08:36:20 mlosch Exp $ |
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C $Name: $ |
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mlosch |
1.1 |
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#include "SEAICE_OPTIONS.h" |
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CStartOfInterface |
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SUBROUTINE SEAICE_GROWTH( myTime, myIter, myThid ) |
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C /==========================================================\ |
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C | SUBROUTINE seaice_growth | |
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C | o Updata ice thickness and snow depth | |
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C |==========================================================| |
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C \==========================================================/ |
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IMPLICIT NONE |
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C === Global variables === |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "DYNVARS.h" |
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#include "GRID.h" |
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#include "FFIELDS.h" |
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#include "SEAICE_PARAMS.h" |
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#include "SEAICE.h" |
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#include "SEAICE_FFIELDS.h" |
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#ifdef ALLOW_AUTODIFF_TAMC |
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# include "tamc.h" |
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#endif |
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C === Routine arguments === |
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C myTime - Simulation time |
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C myIter - Simulation timestep number |
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C myThid - Thread no. that called this routine. |
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_RL myTime |
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INTEGER myIter, myThid |
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CEndOfInterface |
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C === Local variables === |
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C i,j,bi,bj - Loop counters |
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INTEGER i, j, bi, bj |
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_RL TBC, salinity_ice, SDF, ICE_DENS, Q0, QS |
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#ifdef ALLOW_SEAICE_FLOODING |
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_RL hDraft, hFlood |
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#endif /* ALLOW_SEAICE_FLOODING */ |
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_RL GAREA ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
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_RL GHEFF ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
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C RESID_HEAT is residual heat above freezing in equivalent m of ice |
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_RL RESID_HEAT ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
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C FICE - thermodynamic ice growth rate over sea ice in W/m^2 |
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C >0 causes ice growth, <0 causes snow and sea ice melt |
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C FHEFF - effective thermodynamic ice growth rate over sea ice in W/m^2 |
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C >0 causes ice growth, <0 causes snow and sea ice melt |
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C QNETO - thermodynamic ice growth rate over open water in W/m^2 |
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C ( = surface heat flux ) |
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C >0 causes ice growth, <0 causes snow and sea ice melt |
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C QNETI - net surface heat flux under ice in W/m^2 |
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C QSWO - short wave heat flux over ocean in W/m^2 |
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C QSWI - short wave heat flux under ice in W/m^2 |
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_RL FHEFF (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL FICE (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL QNETO (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL QNETI (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL QSWO (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL QSWI (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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C |
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_RL HCORR (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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C SEAICE_SALT contains m of ice melted (<0) or created (>0) |
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_RL SEAICE_SALT(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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C actual ice thickness |
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_RL HICE (1-OLx:sNx+OLx, 1-OLy:sNy+OLy) |
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C actual snow thickness |
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_RL hSnwLoc(1-OLx:sNx+OLx, 1-OLy:sNy+OLy) |
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C wind speed |
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_RL UG (1-OLx:sNx+OLx, 1-OLy:sNy+OLy) |
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_RL SPEED_SQ |
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#ifdef SEAICE_MULTILEVEL |
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INTEGER it |
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INTEGER ilockey |
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_RL RK |
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_RL HICEP(1-OLx:sNx+OLx, 1-OLy:sNy+OLy) |
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_RL FICEP(1-OLx:sNx+OLx, 1-OLy:sNy+OLy) |
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#endif |
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C number of surface interface layer |
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INTEGER kSurface |
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if ( buoyancyRelation .eq. 'OCEANICP' ) then |
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kSurface = Nr |
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else |
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kSurface = 1 |
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endif |
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salinity_ice=4.0 _d 0 ! ICE SALINITY (g/kg) |
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TBC=SEAICE_freeze ! FREEZING TEMP. OF SEA WATER (deg C) |
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SDF=1000.0 _d 0/330.0 _d 0 ! RATIO OF WATER DESITY TO SNOW DENSITY |
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ICE_DENS=0.920 _d 0 ! RATIO OF SEA ICE DESITY TO WATER DENSITY |
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Q0=1.0D-06/302.0 _d +00 ! INVERSE HEAT OF FUSION OF ICE (m^3/J) |
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QS=1.1 _d +08 ! HEAT OF FUSION OF SNOW (J/m^3) |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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c |
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cph( |
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#ifdef ALLOW_AUTODIFF_TAMC |
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act1 = bi - myBxLo(myThid) |
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max1 = myBxHi(myThid) - myBxLo(myThid) + 1 |
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act2 = bj - myByLo(myThid) |
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max2 = myByHi(myThid) - myByLo(myThid) + 1 |
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act3 = myThid - 1 |
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max3 = nTx*nTy |
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act4 = ikey_dynamics - 1 |
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iicekey = (act1 + 1) + act2*max1 |
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& + act3*max1*max2 |
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& + act4*max1*max2*max3 |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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C |
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C initialise a few fields |
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C |
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heimbach |
1.2 |
#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE area(:,:,:,bi,bj) = comlev1_bibj, |
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CADJ & key = iicekey, byte = isbyte |
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CADJ STORE qnet(:,:,bi,bj) = comlev1_bibj, |
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CADJ & key = iicekey, byte = isbyte |
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CADJ STORE qsw(:,:,bi,bj) = comlev1_bibj, |
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CADJ & key = iicekey, byte = isbyte |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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mlosch |
1.1 |
DO J=1,sNy |
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DO I=1,sNx |
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AREA(I,J,3,bi,bj) = MAX(A22,AREA(I,J,2,bi,bj)) |
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FHEFF(I,J) = 0.0 _d 0 |
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FICE (I,J) = 0.0 _d 0 |
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#ifdef SEAICE_MULTILEVEL |
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FICEP(I,J) = 0.0 _d 0 |
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#endif |
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FHEFF(I,J) = 0.0 _d 0 |
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FICE (I,J) = 0.0 _d 0 |
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QNETO(I,J) = 0.0 _d 0 |
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QNETI(I,J) = 0.0 _d 0 |
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QSWO (I,J) = 0.0 _d 0 |
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QSWI (I,J) = 0.0 _d 0 |
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HCORR(I,J) = 0.0 _d 0 |
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SEAICE_SALT(I,J) = 0.0 _d 0 |
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RESID_HEAT (I,J) = 0.0 _d 0 |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE area(:,:,:,bi,bj) = comlev1_bibj, |
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CADJ & key = iicekey, byte = isbyte |
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heimbach |
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CADJ STORE heff(:,:,:,bi,bj) = comlev1_bibj, |
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CADJ & key = iicekey, byte = isbyte |
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CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
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CADJ & key = iicekey, byte = isbyte |
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mlosch |
1.1 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
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heimbach |
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DO J=1,sNy |
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DO I=1,sNx |
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cph need to adjoint-store AREA again before using it in further init. |
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cph (all these initialisations involving AREA are nasty "non-linear") |
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HICE(I,J) = HEFF(I,J,2,bi,bj)/AREA(I,J,3,bi,bj) |
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hSnwLoc(I,J) = HSNOW(I,J,bi,bj)/AREA(I,J,3,bi,bj) |
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ENDDO |
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ENDDO |
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mlosch |
1.1 |
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C NOW DETERMINE MIXED LAYER TEMPERATURE |
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DO J=1,sNy |
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DO I=1,sNx |
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TMIX(I,J,bi,bj)=theta(I,J,kSurface,bi,bj)+273.16 _d +00 |
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#ifdef SEAICE_DEBUG |
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TMIX(I,J,bi,bj)=MAX(TMIX(I,J,bi,bj),271.2 _d +00) |
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#endif |
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ENDDO |
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ENDDO |
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C THERMAL WIND OF ATMOSPHERE |
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DO J=1,sNy |
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DO I=1,sNx |
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CML#ifdef SEAICE_EXTERNAL_FORCING |
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CMLC this seems to be more natural as we do compute the wind speed in |
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CMLC pkg/exf/exf_wind.F, but it changes the results |
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CML UG(I,J) = MAX(SEAICE_EPS,wspeed(I,J,bi,bj)) |
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CML#else |
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SPEED_SQ = UWIND(I,J,bi,bj)**2 + VWIND(I,J,bi,bj)**2 |
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IF ( SPEED_SQ .LE. SEAICE_EPS_SQ ) THEN |
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UG(I,J)=SEAICE_EPS |
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ELSE |
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UG(I,J)=SQRT(SPEED_SQ) |
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ENDIF |
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CML#endif /* SEAICE_EXTERNAL_FORCING */ |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE theta(:,:,:,bi,bj)= comlev1_bibj, |
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CADJ & key = iicekey, byte = isbyte |
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CADJ STORE heff(:,:,:,bi,bj) = comlev1_bibj, |
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CADJ & key = iicekey, byte = isbyte |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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DO J=1,sNy |
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DO I=1,sNx |
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C-- Create or melt sea-ice so that first-level oceanic temperature |
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C is approximately at the freezing point when there is sea-ice. |
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C Initially the units of YNEG are m of sea-ice. |
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C The factor dRf(1)/72.0764, used to convert temperature |
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C change in deg K to m of sea-ice, is approximately: |
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C dRf(1) * (sea water heat capacity = 3996 J/kg/K) |
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C * (density of sea-water = 1026 kg/m^3) |
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C / (latent heat of fusion of sea-ice = 334000 J/kg) |
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C / (density of sea-ice = 910 kg/m^3) |
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C Negative YNEG leads to ice growth. |
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C Positive YNEG leads to ice melting. |
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if ( .NOT. inAdMode ) then |
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#ifdef SEAICE_VARIABLE_FREEZING_POINT |
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TBC = -0.0575 _d 0*salt(I,J,kSurface,bi,bj) + 0.0901 _d 0 |
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#endif /* SEAICE_VARIABLE_FREEZING_POINT */ |
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YNEG(I,J,bi,bj)=(theta(I,J,kSurface,bi,bj)-TBC) |
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& *dRf(1)/72.0764 _d 0 |
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else |
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YNEG(I,J,bi,bj)= 0. |
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endif |
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GHEFF(I,J)=HEFF(I,J,1,bi,bj) |
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C Melt (YNEG>0) or create (YNEG<0) sea ice |
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HEFF(I,J,1,bi,bj)=MAX(ZERO,HEFF(I,J,1,bi,bj)-YNEG(I,J,bi,bj)) |
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RESID_HEAT(I,J) =YNEG(I,J,bi,bj) |
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YNEG(I,J,bi,bj) =GHEFF(I,J)-HEFF(I,J,1,bi,bj) |
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SEAICE_SALT(I,J) =SEAICE_SALT(I,J)-YNEG(I,J,bi,bj) |
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RESID_HEAT(I,J) =RESID_HEAT(I,J)-YNEG(I,J,bi,bj) |
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C YNEG now contains m of ice melted (>0) or created (<0) |
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C SEAICE_SALT contains m of ice melted (<0) or created (>0) |
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C RESID_HEAT is residual heat above freezing in equivalent m of ice |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_AUTODIFF_TAMC |
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heimbach |
1.2 |
cphCADJ STORE heff = comlev1, key = ikey_dynamics |
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cphCADJ STORE hsnow = comlev1, key = ikey_dynamics |
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cphCADJ STORE uwind = comlev1, key = ikey_dynamics |
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cphCADJ STORE vwind = comlev1, key = ikey_dynamics |
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c |
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mlosch |
1.1 |
CADJ STORE tice = comlev1, key = ikey_dynamics |
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# ifdef SEAICE_MULTILEVEL |
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CADJ STORE tices = comlev1, key = ikey_dynamics |
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# endif |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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C GROWTH SUBROUTINE CALCULATES TOTAL GROWTH TENDENCIES, |
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C INCLUDING SNOWFALL |
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CML beginning of groatb code |
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C NOW DETERMINE GROWTH RATES |
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C FIRST DO OPEN WATER |
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CALL SEAICE_BUDGET_OCEAN( |
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I UG, |
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U TMIX, |
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O QNETO, QSWO, |
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I bi, bj) |
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C NOW DO ICE |
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#ifdef SEAICE_MULTILEVEL |
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C-- Start loop over muli-levels |
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DO IT=1,MULTDIM |
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#ifdef ALLOW_AUTODIFF_TAMC |
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ilockey = (iicekey-1)*MULTDIM + IT |
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CADJ STORE tices(:,:,it,bi,bj) = comlev1_multdim, |
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CADJ & key = ilockey, byte = isbyte |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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DO J=1,sNy |
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DO I=1,sNx |
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RK=IT*1.0 |
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HICEP(I,J)=(HICE(I,J)/7.0 _d 0)*((2.0 _d 0*RK)-1.0 _d 0) |
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TICE(I,J,bi,bj)=TICES(I,J,IT,bi,bj) |
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ENDDO |
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ENDDO |
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CALL SEAICE_BUDGET_ICE( |
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I UG, HICE, hSnwLoc, |
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U TICE, |
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O FICE, QSWI, |
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I bi, bj) |
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DO J=1,sNy |
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DO I=1,sNx |
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FICEP(I,J)=(FICE(I,J)/7.0 _d 0)+FICEP(I,J) |
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TICES(I,J,IT,bi,bj)=TICE(I,J,bi,bj) |
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ENDDO |
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ENDDO |
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ENDDO |
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C-- End loop over muli-levels |
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DO J=1,sNy |
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DO I=1,sNx |
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FICE(I,J)=FICEP(I,J) |
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ENDDO |
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ENDDO |
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#else /* SEAICE_MULTILEVEL */ |
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CALL SEAICE_BUDGET_ICE( |
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I UG, HICE, hSnwLoc, |
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U TICE, |
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O FICE, QSWI, |
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I bi, bj) |
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#endif /* SEAICE_MULTILEVEL */ |
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CML end of groatb code |
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cph( |
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#ifdef ALLOW_AUTODIFF_TAMC |
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cphCADJ STORE heff = comlev1, key = ikey_dynamics |
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cphCADJ STORE hsnow = comlev1, key = ikey_dynamics |
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#endif |
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cph) |
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c |
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE area(:,:,:,bi,bj) = comlev1_bibj, |
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CADJ & key = iicekey, byte = isbyte |
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CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
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CADJ & key = iicekey, byte = isbyte |
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heimbach |
1.2 |
CADJ STORE fice(:,:) = comlev1_bibj, |
314 |
mlosch |
1.1 |
CADJ & key = iicekey, byte = isbyte |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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|
cph) |
317 |
|
|
|
318 |
|
|
DO J=1,sNy |
319 |
|
|
DO I=1,sNx |
320 |
|
|
C NOW CALCULATE CORRECTED GROWTH |
321 |
|
|
GHEFF(I,J)=-SEAICE_deltaTtherm*FICE(I,J) |
322 |
|
|
& *AREA(I,J,2,bi,bj) ! effective growth in J/m^2 (>0=melt) |
323 |
|
|
ENDDO |
324 |
|
|
ENDDO |
325 |
heimbach |
1.2 |
|
326 |
mlosch |
1.1 |
#ifdef ALLOW_AUTODIFF_TAMC |
327 |
|
|
CADJ STORE fice(:,:) = comlev1_bibj, |
328 |
heimbach |
1.2 |
CADJ & key = iicekey, byte = isbyte |
329 |
mlosch |
1.1 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
330 |
|
|
|
331 |
|
|
DO J=1,sNy |
332 |
|
|
DO I=1,sNx |
333 |
|
|
IF(FICE(I,J).LT.ZERO.AND.AREA(I,J,2,bi,bj).GT.ZERO) THEN |
334 |
|
|
C use FICE to melt snow and CALCULATE CORRECTED GROWTH |
335 |
|
|
GAREA(I,J)=HSNOW(I,J,bi,bj)*QS ! effective snow thickness in J/m^2 |
336 |
|
|
IF(GHEFF(I,J).LE.GAREA(I,J)) THEN |
337 |
|
|
C not enough heat to melt all snow; use up all heat flux FICE |
338 |
|
|
HSNOW(I,J,bi,bj)=HSNOW(I,J,bi,bj)-GHEFF(I,J)/QS |
339 |
|
|
C SNOW CONVERTED INTO WATER AND THEN INTO equivalent m of ICE melt |
340 |
|
|
C The factor 1/SDF/ICE_DENS converts m of snow to m of sea-ice |
341 |
|
|
SEAICE_SALT(I,J)=SEAICE_SALT(I,J) |
342 |
|
|
& -GHEFF(I,J)/QS/SDF/ICE_DENS |
343 |
|
|
FICE(I,J)=ZERO |
344 |
|
|
ELSE |
345 |
|
|
C enought heat to melt snow completely; |
346 |
|
|
C compute remaining heat flux that will melt ice |
347 |
|
|
FICE(I,J)=-(GHEFF(I,J)-GAREA(I,J))/ |
348 |
|
|
& SEAICE_deltaTtherm/AREA(I,J,2,bi,bj) |
349 |
|
|
C convert all snow to melt water (fresh water flux) |
350 |
|
|
SEAICE_SALT(I,J)=SEAICE_SALT(I,J) |
351 |
|
|
& -HSNOW(I,J,bi,bj)/SDF/ICE_DENS |
352 |
|
|
HSNOW(I,J,bi,bj)=0.0 |
353 |
|
|
END IF |
354 |
|
|
END IF |
355 |
heimbach |
1.2 |
ENDDO |
356 |
|
|
ENDDO |
357 |
mlosch |
1.1 |
|
358 |
heimbach |
1.2 |
#ifdef ALLOW_AUTODIFF_TAMC |
359 |
|
|
CADJ STORE fice(:,:) = comlev1_bibj, |
360 |
|
|
CADJ & key = iicekey, byte = isbyte |
361 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
362 |
|
|
|
363 |
|
|
DO J=1,sNy |
364 |
|
|
DO I=1,sNx |
365 |
mlosch |
1.1 |
C NOW GET TOTAL GROWTH RATE in W/m^2, >0 causes ice growth |
366 |
|
|
FHEFF(I,J)= FICE(I,J) * AREA(I,J,2,bi,bj) |
367 |
|
|
& + QNETO(I,J) * (ONE-AREA(I,J,2,bi,bj)) |
368 |
|
|
ENDDO |
369 |
|
|
ENDDO |
370 |
|
|
cph( |
371 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
372 |
|
|
CADJ STORE heff(:,:,:,bi,bj) = comlev1_bibj, |
373 |
|
|
CADJ & key = iicekey, byte = isbyte |
374 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
375 |
|
|
CADJ & key = iicekey, byte = isbyte |
376 |
|
|
CADJ STORE fice(:,:) = comlev1_bibj, |
377 |
|
|
CADJ & key = iicekey, byte = isbyte |
378 |
|
|
CADJ STORE fheff(:,:) = comlev1_bibj, |
379 |
|
|
CADJ & key = iicekey, byte = isbyte |
380 |
|
|
CADJ STORE qneto(:,:) = comlev1_bibj, |
381 |
|
|
CADJ & key = iicekey, byte = isbyte |
382 |
|
|
CADJ STORE qswi(:,:) = comlev1_bibj, |
383 |
|
|
CADJ & key = iicekey, byte = isbyte |
384 |
|
|
CADJ STORE qswo(:,:) = comlev1_bibj, |
385 |
|
|
CADJ & key = iicekey, byte = isbyte |
386 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
387 |
|
|
cph) |
388 |
|
|
DO J=1,sNy |
389 |
|
|
DO I=1,sNx |
390 |
|
|
C NOW UPDATE AREA |
391 |
|
|
GHEFF(I,J)=-SEAICE_deltaTtherm*FHEFF(I,J)*Q0 |
392 |
|
|
GAREA(I,J)=SEAICE_deltaTtherm*QNETO(I,J)*Q0 |
393 |
|
|
GHEFF(I,J)=-ONE*MIN(HEFF(I,J,1,bi,bj),GHEFF(I,J)) |
394 |
|
|
GAREA(I,J)=MAX(ZERO,GAREA(I,J)) |
395 |
|
|
HCORR(I,J)=MIN(ZERO,GHEFF(I,J)) |
396 |
|
|
ENDDO |
397 |
|
|
ENDDO |
398 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
399 |
|
|
CADJ STORE area(:,:,:,bi,bj) = comlev1_bibj, |
400 |
|
|
CADJ & key = iicekey, byte = isbyte |
401 |
|
|
#endif |
402 |
|
|
DO J=1,sNy |
403 |
|
|
DO I=1,sNx |
404 |
|
|
GAREA(I,J)=(ONE-AREA(I,J,2,bi,bj))*GAREA(I,J)/HO |
405 |
|
|
& +HALF*HCORR(I,J)*AREA(I,J,2,bi,bj) |
406 |
|
|
& /(HEFF(I,J,1,bi,bj)+.00001 _d 0) |
407 |
|
|
AREA(I,J,1,bi,bj)=AREA(I,J,1,bi,bj)+GAREA(I,J) |
408 |
|
|
ENDDO |
409 |
|
|
ENDDO |
410 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
411 |
|
|
CADJ STORE area(:,:,:,bi,bj) = comlev1_bibj, |
412 |
|
|
CADJ & key = iicekey, byte = isbyte |
413 |
|
|
#endif |
414 |
|
|
DO J=1,sNy |
415 |
|
|
DO I=1,sNx |
416 |
|
|
|
417 |
|
|
C NOW UPDATE HEFF |
418 |
|
|
GHEFF(I,J)=-SEAICE_deltaTtherm* |
419 |
|
|
& FICE(I,J)*Q0*AREA(I,J,2,bi,bj) |
420 |
|
|
GHEFF(I,J)=-ONE*MIN(HEFF(I,J,1,bi,bj),GHEFF(I,J)) |
421 |
|
|
HEFF(I,J,1,bi,bj)=HEFF(I,J,1,bi,bj)+GHEFF(I,J) |
422 |
|
|
SEAICE_SALT(I,J)=SEAICE_SALT(I,J)+GHEFF(I,J) |
423 |
|
|
|
424 |
|
|
C NOW CALCULATE QNETI UNDER ICE IF ANY |
425 |
|
|
QNETI(I,J)=(GHEFF(I,J)-SEAICE_deltaTtherm* |
426 |
|
|
& FICE(I,J)*Q0*AREA(I,J,2,bi,bj))/Q0/SEAICE_deltaTtherm |
427 |
|
|
|
428 |
|
|
C NOW UPDATE OTHER THINGS |
429 |
|
|
|
430 |
|
|
IF(FICE(I,J).GT.ZERO) THEN |
431 |
|
|
C FREEZING, PRECIP ADDED AS SNOW |
432 |
|
|
HSNOW(I,J,bi,bj)=HSNOW(I,J,bi,bj)+SEAICE_deltaTtherm* |
433 |
|
|
& PRECIP(I,J,bi,bj)*AREA(I,J,2,bi,bj)*SDF |
434 |
|
|
ELSE |
435 |
|
|
C ADD PRECIP AS RAIN, WATER CONVERTED INTO equivalent m of ICE BY 1/ICE_DENS |
436 |
|
|
SEAICE_SALT(I,J)=SEAICE_SALT(I,J) |
437 |
|
|
& -PRECIP(I,J,bi,bj)*AREA(I,J,2,bi,bj)* |
438 |
|
|
& SEAICE_deltaTtherm/ICE_DENS |
439 |
|
|
ENDIF |
440 |
|
|
|
441 |
|
|
C Now add in precip over open water directly into ocean as negative salt |
442 |
|
|
SEAICE_SALT(I,J)=SEAICE_SALT(I,J) |
443 |
|
|
& -PRECIP(I,J,bi,bj)*(ONE-AREA(I,J,2,bi,bj)) |
444 |
|
|
& *SEAICE_deltaTtherm/ICE_DENS |
445 |
|
|
|
446 |
|
|
C Now melt snow if there is residual heat left in surface level |
447 |
|
|
C Note that units of YNEG and SEAICE_SALT are m of ice |
448 |
|
|
IF(RESID_HEAT(I,J).GT.ZERO.AND. |
449 |
|
|
& HSNOW(I,J,bi,bj).GT.ZERO) THEN |
450 |
|
|
GHEFF(I,J)=MIN(HSNOW(I,J,bi,bj)/SDF/ICE_DENS, |
451 |
|
|
& RESID_HEAT(I,J)) |
452 |
|
|
YNEG(I,J,bi,bj)=YNEG(I,J,bi,bj)+GHEFF(I,J) |
453 |
|
|
HSNOW(I,J,bi,bj)=HSNOW(I,J,bi,bj)-GHEFF(I,J)*SDF*ICE_DENS |
454 |
|
|
SEAICE_SALT(I,J)=SEAICE_SALT(I,J)-GHEFF(I,J) |
455 |
|
|
ENDIF |
456 |
|
|
|
457 |
|
|
C NOW GET FRESH WATER FLUX |
458 |
|
|
EmPmR(I,J,bi,bj)= maskC(I,J,kSurface,bi,bj)*( |
459 |
|
|
& EVAP(I,J,bi,bj)*(ONE-AREA(I,J,2,bi,bj)) |
460 |
|
|
& -RUNOFF(I,J,bi,bj) |
461 |
|
|
& +SEAICE_SALT(I,J)*ICE_DENS/SEAICE_deltaTtherm |
462 |
|
|
& ) |
463 |
|
|
|
464 |
|
|
C NOW GET TOTAL QNET AND QSW |
465 |
|
|
QNET(I,J,bi,bj)=QNETI(I,J) *AREA(I,J,2,bi,bj) |
466 |
|
|
& +QNETO(I,J) *(ONE-AREA(I,J,2,bi,bj)) |
467 |
|
|
QSW(I,J,bi,bj) =QSWI(I,J) *AREA(I,J,2,bi,bj) |
468 |
|
|
& +QSWO(I,J) *(ONE-AREA(I,J,2,bi,bj)) |
469 |
|
|
c #ifndef SHORTWAVE_HEATING |
470 |
|
|
c QNET(I,J,bi,bj)=QNET(I,J,bi,bj)+QSW(I,J,bi,bj) |
471 |
|
|
c #endif |
472 |
|
|
|
473 |
|
|
C Now convert YNEG back to deg K. |
474 |
|
|
YNEG(I,J,bi,bj)=YNEG(I,J,bi,bj)*recip_dRf(1)*72.0764 _d 0 |
475 |
|
|
|
476 |
|
|
C Add YNEG contribution to QNET |
477 |
|
|
QNET(I,J,bi,bj)=QNET(I,J,bi,bj) |
478 |
|
|
& +YNEG(I,J,bi,bj)/SEAICE_deltaTtherm |
479 |
|
|
& *maskC(I,J,kSurface,bi,bj) |
480 |
|
|
& *HeatCapacity_Cp*recip_horiVertRatio*rhoConst |
481 |
|
|
& *drF(kSurface)*hFacC(i,j,kSurface,bi,bj) |
482 |
|
|
|
483 |
|
|
ENDDO |
484 |
|
|
ENDDO |
485 |
|
|
|
486 |
|
|
#ifdef SEAICE_DEBUG |
487 |
|
|
c CALL PLOT_FIELD_XYRS( UWIND,'Current UWIND ', myIter, myThid ) |
488 |
|
|
c CALL PLOT_FIELD_XYRS( VWIND,'Current VWIND ', myIter, myThid ) |
489 |
|
|
CALL PLOT_FIELD_XYRS( GWATX,'Current GWATX ', myIter, myThid ) |
490 |
|
|
CALL PLOT_FIELD_XYRS( GWATY,'Current GWATY ', myIter, myThid ) |
491 |
|
|
CML CALL PLOT_FIELD_XYRL( FO,'Current FO ', myIter, myThid ) |
492 |
|
|
CML CALL PLOT_FIELD_XYRL( FHEFF,'Current FHEFF ', myIter, myThid ) |
493 |
|
|
CALL PLOT_FIELD_XYRL( QSW,'Current QSW ', myIter, myThid ) |
494 |
|
|
CALL PLOT_FIELD_XYRL( QNET,'Current QNET ', myIter, myThid ) |
495 |
|
|
CALL PLOT_FIELD_XYRL( EmPmR,'Current EmPmR ', myIter, myThid ) |
496 |
|
|
DO j=1-OLy,sNy+OLy |
497 |
|
|
DO i=1-OLx,sNx+OLx |
498 |
|
|
GHEFF(I,J)=SQRT(UICE(I,J,1,bi,bj)**2+VICE(I,J,1,bi,bj)**2) |
499 |
|
|
GAREA(I,J)=HEFF(I,J,1,bi,bj) |
500 |
|
|
print*,'I J QNET:',I, J, QNET(i,j,bi,bj), QSW(I,J,bi,bj) |
501 |
|
|
ENDDO |
502 |
|
|
ENDDO |
503 |
|
|
CALL PLOT_FIELD_XYRL( GHEFF,'Current UICE ', myIter, myThid ) |
504 |
|
|
CALL PLOT_FIELD_XYRL( GAREA,'Current HEFF ', myIter, myThid ) |
505 |
|
|
DO j=1-OLy,sNy+OLy |
506 |
|
|
DO i=1-OLx,sNx+OLx |
507 |
|
|
if(HEFF(i,j,1,bi,bj).gt.1.) then |
508 |
|
|
print '(A,2i4,3f10.2)','#### i j heff theta yneg',i,j, |
509 |
|
|
& HEFF(i,j,1,bi,bj),theta(I,J,1,bi,bj),yneg(I,J,bi,bj) |
510 |
|
|
print '(A,3f10.2)','QSW, QNET before/after correction', |
511 |
|
|
& QSW(I,J,bi,bj),QNETI(I,J)*AREA(I,J,2,bi,bj)+ |
512 |
|
|
& (ONE-AREA(I,J,2,bi,bj))*QNETO(I,J), QNET(I,J,bi,bj) |
513 |
|
|
endif |
514 |
|
|
ENDDO |
515 |
|
|
ENDDO |
516 |
|
|
#endif /* SEAICE_DEBUG */ |
517 |
|
|
|
518 |
|
|
crg Added by Ralf Giering: do we need DO_WE_NEED_THIS ? |
519 |
|
|
#define DO_WE_NEED_THIS |
520 |
|
|
C NOW ZERO OUTSIDE POINTS |
521 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
522 |
|
|
CADJ STORE area(:,:,:,bi,bj) = comlev1_bibj, |
523 |
|
|
CADJ & key = iicekey, byte = isbyte |
524 |
|
|
CADJ STORE heff(:,:,:,bi,bj) = comlev1_bibj, |
525 |
|
|
CADJ & key = iicekey, byte = isbyte |
526 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
527 |
|
|
DO J=1,sNy |
528 |
|
|
DO I=1,sNx |
529 |
|
|
C NOW SET AREA(I,J,1,bi,bj)=0 WHERE NO ICE IS |
530 |
|
|
AREA(I,J,1,bi,bj)=MIN(AREA(I,J,1,bi,bj) |
531 |
|
|
& ,HEFF(I,J,1,bi,bj)/.0001 _d 0) |
532 |
|
|
ENDDO |
533 |
|
|
ENDDO |
534 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
535 |
|
|
CADJ STORE area(:,:,:,bi,bj) = comlev1_bibj, |
536 |
|
|
CADJ & key = iicekey, byte = isbyte |
537 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
538 |
|
|
DO J=1,sNy |
539 |
|
|
DO I=1,sNx |
540 |
|
|
C NOW TRUNCATE AREA |
541 |
|
|
#ifdef DO_WE_NEED_THIS |
542 |
|
|
AREA(I,J,1,bi,bj)=MIN(ONE,AREA(I,J,1,bi,bj)) |
543 |
|
|
ENDDO |
544 |
|
|
ENDDO |
545 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
546 |
|
|
CADJ STORE area(:,:,:,bi,bj) = comlev1_bibj, |
547 |
|
|
CADJ & key = iicekey, byte = isbyte |
548 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
549 |
|
|
CADJ & key = iicekey, byte = isbyte |
550 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
551 |
|
|
DO J=1,sNy |
552 |
|
|
DO I=1,sNx |
553 |
|
|
AREA(I,J,1,bi,bj)=MAX(ZERO,AREA(I,J,1,bi,bj)) |
554 |
|
|
HSNOW(I,J,bi,bj)=MAX(ZERO,HSNOW(I,J,bi,bj)) |
555 |
|
|
#endif |
556 |
|
|
AREA(I,J,1,bi,bj)=AREA(I,J,1,bi,bj)*HEFFM(I,J,bi,bj) |
557 |
|
|
HEFF(I,J,1,bi,bj)=HEFF(I,J,1,bi,bj)*HEFFM(I,J,bi,bj) |
558 |
|
|
#ifdef DO_WE_NEED_THIS |
559 |
|
|
c HEFF(I,J,1,bi,bj)=MIN(MAX_HEFF,HEFF(I,J,1,bi,bj)) |
560 |
|
|
#endif |
561 |
|
|
HSNOW(I,J,bi,bj)=HSNOW(I,J,bi,bj)*HEFFM(I,J,bi,bj) |
562 |
|
|
ENDDO |
563 |
|
|
ENDDO |
564 |
|
|
|
565 |
|
|
#ifdef ALLOW_SEAICE_FLOODING |
566 |
|
|
IF ( SEAICEuseFlooding ) THEN |
567 |
|
|
C convert snow to ice if submerged |
568 |
|
|
DO J=1,sNy |
569 |
|
|
DO I=1,sNx |
570 |
|
|
hDraft = (HSNOW(I,J,bi,bj)*330. _d 0 |
571 |
|
|
& +HEFF(I,J,1,bi,bj)*SEAICE_rhoIce)/1000. _d 0 |
572 |
|
|
hFlood = hDraft - MIN(hDraft,HEFF(I,J,1,bi,bj)) |
573 |
|
|
HEFF(I,J,1,bi,bj) = HEFF(I,J,1,bi,bj) + hFlood |
574 |
|
|
HSNOW(I,J,bi,bj) = MAX(0. _d 0,HSNOW(I,J,bi,bj)-hFlood/SDF) |
575 |
|
|
ENDDO |
576 |
|
|
ENDDO |
577 |
|
|
ENDIF |
578 |
|
|
#endif /* ALLOW_SEAICE_FLOODING */ |
579 |
|
|
|
580 |
|
|
#ifdef ATMOSPHERIC_LOADING |
581 |
|
|
IF ( useRealFreshWaterFlux ) THEN |
582 |
|
|
DO J=1,sNy |
583 |
|
|
DO I=1,sNx |
584 |
|
|
sIceLoad(i,j,bi,bj) = HEFF(I,J,1,bi,bj)*SEAICE_rhoIce |
585 |
|
|
& + HSNOW(I,J,bi,bj)* 330. _d 0 |
586 |
|
|
ENDDO |
587 |
|
|
ENDDO |
588 |
|
|
ENDIF |
589 |
|
|
#endif |
590 |
|
|
|
591 |
|
|
ENDDO |
592 |
|
|
ENDDO |
593 |
|
|
|
594 |
|
|
RETURN |
595 |
|
|
END |