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C $Header: /u/gcmpack/MITgcm_contrib/dgoldberg/streamice/streamice_advect_thickness.F,v 1.9 2013/06/11 17:42:17 dgoldberg Exp $ |
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C $Name: $ |
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#include "STREAMICE_OPTIONS.h" |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP |
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SUBROUTINE STREAMICE_ADVECT_THICKNESS ( myThid,myIter,time_step ) |
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C /============================================================\ |
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C | SUBROUTINE | |
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C | o | |
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C |============================================================| |
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C | | |
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C \============================================================/ |
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IMPLICIT NONE |
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|
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C === Global variables === |
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#include "SIZE.h" |
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#include "GRID.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "STREAMICE.h" |
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#include "STREAMICE_ADV.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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INTEGER myThid, myIter |
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_RL time_step |
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|
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#ifdef ALLOW_STREAMICE |
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INTEGER i, j, bi, bj, Gi, Gj |
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_RL thick_bd, uflux, vflux, max_icfl, loc_icfl |
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_RL time_step_full, time_step_rem |
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_RL sec_per_year, time_step_loc, MR, SMB, TMB |
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_RL BCVALX(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL BCVALY(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RS BCMASKX(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RS BCMASKY(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL utrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL vtrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL h_after_uflux_SI(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL h_after_vflux_SI(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL hflux_x_SI(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL hflux_y_SI(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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|
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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sec_per_year = 365.*86400. |
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|
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time_step_loc = time_step / sec_per_year |
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time_step_full = time_step_loc |
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time_step_rem = time_step_loc |
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PRINT *, "time_step_loc ", time_step_loc |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE streamice_hmask = comlev1, key=ikey_dynamics |
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#endif |
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|
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO j=1,sNy+1 |
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DO i=1,sNx+1 |
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|
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H_streamice_prev(i,j,bi,bj) = |
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& H_streamice(i,j,bi,bj) |
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hflux_x_SI (i,j,bi,bj) = 0. _d 0 |
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hflux_y_SI (i,j,bi,bj) = 0. _d 0 |
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|
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|
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IF (STREAMICE_ufacemask(i,j,bi,bj).eq.3.0) THEN |
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BCMASKX(i,j,bi,bj) = 3.0 |
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BCVALX(i,j,bi,bj) = h_ubdry_values_SI(i,j,bi,bj) |
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utrans(i,j,bi,bj) = .5 * ( |
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& u_streamice(i,j,bi,bj)+u_streamice(i,j+1,bi,bj)) |
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ELSEIF (STREAMICE_ufacemask(i,j,bi,bj).eq.4.0) THEN |
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uflux = u_flux_bdry_SI(i,j,bi,bj) |
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BCMASKX(i,j,bi,bj) = 0.0 |
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BCVALX(i,j,bi,bj) = uflux |
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utrans(i,j,bi,bj) = 1.0 |
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ELSEIF (.not.( |
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& STREAMICE_hmask(i,j,bi,bj).eq.1.0.OR. |
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& STREAMICE_hmask(i-1,j,bi,bj).eq.1.0)) THEN |
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BCMASKX(i,j,bi,bj) = 0.0 |
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BCVALX(i,j,bi,bj) = 0. _d 0 |
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utrans(i,j,bi,bj) = 0. _d 0 |
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ELSE |
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BCMASKX(i,j,bi,bj) = 0.0 |
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BCVALX(i,j,bi,bj) = 0. _d 0 |
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utrans(i,j,bi,bj) = .5 * ( |
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& u_streamice(i,j,bi,bj)+u_streamice(i,j+1,bi,bj)) |
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ENDIF |
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IF (STREAMICE_vfacemask(i,j,bi,bj).eq.3.0) THEN |
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BCMASKy(i,j,bi,bj) = 3.0 |
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BCVALy(i,j,bi,bj) = h_vbdry_values_SI(i,j,bi,bj) |
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vtrans(i,j,bi,bj) = .5 * ( |
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& v_streamice(i,j,bi,bj)+v_streamice(i+1,j,bi,bj)) |
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ELSEIF (STREAMICE_vfacemask(i,j,bi,bj).eq.4.0) THEN |
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vflux = v_flux_bdry_SI(i,j,bi,bj) |
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BCMASKy(i,j,bi,bj) = 0.0 |
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BCVALy(i,j,bi,bj) = vflux |
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vtrans(i,j,bi,bj) = 1.0 |
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ELSEIF (.not.( |
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& STREAMICE_hmask(i,j,bi,bj).eq.1.0.OR. |
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& STREAMICE_hmask(i,j-1,bi,bj).eq.1.0)) THEN |
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BCMASKY(i,j,bi,bj) = 0.0 |
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BCVALY(i,j,bi,bj) = 0. _d 0 |
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vtrans(i,j,bi,bj) = 0. _d 0 |
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ELSE |
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BCMASKy(i,j,bi,bj) = 0.0 |
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BCVALy(i,j,bi,bj) = 0. _d 0 |
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vtrans(i,j,bi,bj) = .5 * ( |
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& v_streamice(i,j,bi,bj)+v_streamice(i+1,j,bi,bj)) |
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ENDIF |
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|
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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_EXCH_XY_RL(utrans,myThid) |
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_EXCH_XY_RL(vtrans,myThid) |
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_EXCH_XY_RS(BCMASKx,myThid) |
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_EXCH_XY_RS(BCMASKy,myThid) |
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_EXCH_XY_RL(BCVALX,myThid) |
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_EXCH_XY_RL(BCVALY,myThid) |
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#ifndef ALLOW_AUTODIFF_TAMC |
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max_icfl = 1.e-20 |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO j=1,sNy |
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DO i=1,sNx |
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IF (streamice_hmask(i,j,bi,bj).eq.1.0) THEN |
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loc_icfl=max(abs(utrans(i,j,bi,bj)), |
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& abs(utrans(i+1,j,bi,bj))) / dxF(i,j,bi,bj) |
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loc_icfl=max(loc_icfl,max(abs(vtrans(i,j,bi,bj)), |
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& abs(vtrans(i,j+1,bi,bj))) / dyF(i,j,bi,bj)) |
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if (loc_icfl.gt.max_icfl) then |
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max_icfl = loc_icfl |
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ENDIF |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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CALL GLOBAL_MAX_R8 (max_icfl, myThid) |
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|
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#endif |
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE streamice_hmask = comlev1, key=ikey_dynamics |
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CADJ STORE H_streamice = comlev1, key=ikey_dynamics |
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#endif |
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|
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#ifndef ALLOW_AUTODIFF_TAMC |
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do while (time_step_rem .gt. 1.e-15) |
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time_step_loc = min ( |
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& streamice_cfl_factor / max_icfl, |
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& time_step_rem ) |
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if (time_step_loc .lt. time_step_full) then |
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PRINT *, "TAKING PARTIAL TIME STEP", time_step_loc |
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endif |
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#endif |
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|
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CALL STREAMICE_ADV_FLUX_FL_X ( myThid , |
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I utrans , |
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I H_streamice , |
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I BCMASKX, |
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I BCVALX, |
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O hflux_x_SI, |
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I time_step_loc ) |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO j=1-3,sNy+3 |
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DO i=1,sNx |
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Gi = (myXGlobalLo-1)+(bi-1)*sNx+i |
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Gj = (myYGlobalLo-1)+(bj-1)*sNy+j |
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IF (((Gj .ge. 1) .and. (Gj .le. Ny)) |
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& .or.STREAMICE_NS_PERIODIC) THEN |
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|
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IF (STREAMICE_hmask(i,j,bi,bj).eq.1.0) THEN |
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h_after_uflux_SI (i,j,bi,bj) = H_streamice(i,j,bi,bj) - |
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& (hflux_x_SI(i+1,j,bi,bj)*dyG(i+1,j,bi,bj) - |
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& hflux_x_SI(i,j,bi,bj)*dyG(i,j,bi,bj)) |
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& * recip_rA (i,j,bi,bj) * time_step_loc |
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IF ( h_after_uflux_SI (i,j,bi,bj).le.0.0) THEN |
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PRINT *, "h neg after x", i,j,hflux_x_SI(i+1,j,bi,bj), |
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& hflux_x_SI(i,j,bi,bj) |
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ENDIF |
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ENDIF |
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|
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ENDIF |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE streamice_hmask = comlev1, key=ikey_dynamics |
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#endif |
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|
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! CALL STREAMICE_ADVECT_THICKNESS_Y ( myThid, |
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! O hflux_y_SI, |
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! O h_after_vflux_SI, |
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! I time_step_loc ) |
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|
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CALL STREAMICE_ADV_FLUX_FL_Y ( myThid , |
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I vtrans , |
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I h_after_uflux_si , |
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I BCMASKY, |
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I BCVALY, |
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O hflux_y_SI, |
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I time_step_loc ) |
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|
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|
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO j=1,sNy |
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DO i=1,sNx |
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Gi = (myXGlobalLo-1)+(bi-1)*sNx+i |
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Gj = (myYGlobalLo-1)+(bj-1)*sNy+j |
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IF (((Gj .ge. 1) .and. (Gj .le. Ny)) |
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& .or.STREAMICE_EW_PERIODIC) THEN |
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|
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IF (STREAMICE_hmask(i,j,bi,bj).eq.1.0) THEN |
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h_after_vflux_SI (i,j,bi,bj) = h_after_uflux_SI(i,j,bi,bj) - |
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& (hflux_y_SI(i,j+1,bi,bj)*dxG(i,j+1,bi,bj) - |
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& hflux_y_SI(i,j,bi,bj)*dxG(i,j,bi,bj)) * |
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& recip_rA (i,j,bi,bj) * time_step_loc |
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IF ( h_after_vflux_SI (i,j,bi,bj).le.0.0) THEN |
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PRINT *, "h neg after y", i,j,hflux_y_SI(i,j+1,bi,bj), |
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& hflux_y_SI(i,j,bi,bj) |
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ENDIF |
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|
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ENDIF |
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ENDIF |
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|
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO j=1,sNy |
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DO i=1,sNx |
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IF (STREAMICE_hmask(i,j,bi,bj).eq.1.0) THEN |
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H_streamice (i,j,bi,bj) = |
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& h_after_vflux_SI (i,j,bi,bj) |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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! NOTE: AT THIS POINT H IS NOT VALID ON OVERLAP!!! |
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|
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! CALL STREAMICE_ADV_FRONT ( |
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! & myThid, time_step_loc, |
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! & hflux_x_SI, hflux_y_SI ) |
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|
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|
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#ifdef ALLOW_STREAMICE_2DTRACER |
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CALL STREAMICE_ADVECT_2DTRACER( |
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& myThid, |
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& myIter, |
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& time_step, |
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& uTrans, |
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& vTrans, |
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& bcMaskx, |
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& bcMasky ) |
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#endif |
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|
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#ifndef ALLOW_AUTODIFF_TAMC |
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time_step_rem = time_step_rem - time_step_loc |
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enddo |
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#endif |
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|
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|
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|
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! NOW WE APPLY MELT RATES !! |
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! THIS MAY BE MOVED TO A SEPARATE SUBROUTINE |
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|
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO j=1,sNy |
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DO i=1,sNx |
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IF (STREAMICE_hmask(i,j,bi,bj).eq.1.0 .or. |
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& STREAMICE_hmask(i,j,bi,bj).eq.2.0) THEN |
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MR = (1.-float_frac_streamice(i,j,bi,bj)) * |
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& BDOT_STREAMICE(i,j,bi,bj) |
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SMB = ADOT_STREAMICE(i,j,bi,bj) |
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TMB = SMB - MR |
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IF ((TMB.lt.0.0) .and. |
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& (MR * time_step_loc .gt. |
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& H_streamice (i,j,bi,bj))) THEN |
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H_streamice (i,j,bi,bj) = 0. _d 0 |
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STREAMICE_hmask(i,j,bi,bj) = 0. |
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ELSE |
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H_streamice (i,j,bi,bj) = |
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& H_streamice (i,j,bi,bj) + TMB * time_step_loc |
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ENDIF |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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_EXCH_XY_RL (H_streamice,myThid) |
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|
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|
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WRITE(msgBuf,'(A)') 'END STREAMICE_ADVECT_THICKNESS' |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT , 1) |
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|
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#endif |
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END |
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