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C $Header: /u/gcmpack/MITgcm/pkg/seaice/lsr.F,v 1.18 2006/03/06 13:17:37 mlosch Exp $ |
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C $Name: $ |
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|
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#include "SEAICE_OPTIONS.h" |
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|
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CStartOfInterface |
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SUBROUTINE lsr( ilcall, myThid ) |
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C /==========================================================\ |
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C | SUBROUTINE lsr | |
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C | o Solve ice momentum equation with an LSR dynamics solver| |
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C | (see Zhang and Hibler, JGR, 102, 8691-8702, 1997 | |
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C | and Zhang and Rothrock, MWR, 131, 845- 861, 2003) | |
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C | Written by Jinlun Zhang, PSC/UW, Feb-2001 | |
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C | zhang@apl.washington.edu | |
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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 "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "SEAICE.h" |
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#include "SEAICE_PARAMS.h" |
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C#include "SEAICE_GRID.h" |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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# include "tamc.h" |
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#endif |
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|
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C === Routine arguments === |
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C myThid - Thread no. that called this routine. |
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INTEGER ilcall |
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INTEGER myThid |
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CEndOfInterface |
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|
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#ifndef SEAICE_CGRID |
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#ifdef SEAICE_ALLOW_DYNAMICS |
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|
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C === Local variables === |
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C i,j,bi,bj - Loop counters |
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|
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INTEGER i, j, m, bi, bj, j1, j2, im, jm |
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INTEGER ICOUNT1, ICOUNT2, SOLV_MAX_ITERS, SOLV_NCHECK |
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INTEGER phexit |
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|
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_RL WFAU, WFAV, WFAU1, WFAV1, WFAU2, WFAV2 |
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_RL AA1, AA2, AA3, AA4, AA5, AA6, S1, S2, S1A, S2A |
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|
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_RL AU (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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_RL BU (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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_RL CU (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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_RL AV (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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_RL BV (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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_RL CV (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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_RL UERR (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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_RL FXY (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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|
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_RL URT(1-Olx:sNx+Olx), CUU(1-Olx:sNx+Olx) |
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_RL VRT(1-Oly:sNy+Oly), CVV(1-Oly:sNy+Oly) |
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|
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_RL etaPlusZeta (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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_RL zetaMinusEta(1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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_RL ETAMEAN (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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_RL ZETAMEAN (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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|
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_RL UVRT1 (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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_RL UVRT2 (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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|
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_RL vDiffX (1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
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_RL vDiffY (1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
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_RL uDiffY (1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
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|
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C SET SOME VALUES |
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WFAU1=0.95 _d 0 |
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WFAV1=0.95 _d 0 |
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WFAU2=ZERO |
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WFAV2=ZERO |
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|
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S1A=0.80 _d 0 |
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S2A=0.80 _d 0 |
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WFAU=WFAU1 |
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WFAV=WFAV1 |
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|
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SOLV_MAX_ITERS=1500 |
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SOLV_NCHECK=2 |
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|
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ICOUNT1=SOLV_MAX_ITERS |
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ICOUNT2=SOLV_MAX_ITERS |
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|
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C SOLVE FOR UICE |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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cph That's an important one! Note, that |
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cph * lsr is called twice, thus the icall index |
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cph * this storing is still outside the iteration loop |
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CADJ STORE uice = comlev1_lsr, |
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CADJ & key = ikey_dynamics + (ilcall-1)*nchklev_1 |
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CADJ STORE vice = comlev1_lsr, |
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CADJ & key = ikey_dynamics + (ilcall-1)*nchklev_1 |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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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-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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FORCEX(I,J,bi,bj)=FORCEX(I,J,bi,bj) |
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& +AMASS(I,J,bi,bj)/SEAICE_deltaTdyn*UICE(I,J,2,bi,bj) |
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FORCEY(I,J,bi,bj)=FORCEY(I,J,bi,bj) |
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& +AMASS(I,J,bi,bj)/SEAICE_deltaTdyn*VICE(I,J,2,bi,bj) |
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FORCEX(I,J,bi,bj)=FORCEX(I,J,bi,bj)*UVM(I,J,bi,bj) |
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FORCEY(I,J,bi,bj)=FORCEY(I,J,bi,bj)*UVM(I,J,bi,bj) |
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etaPlusZeta(I,J,bi,bj) = ETA(I,J,bi,bj)+ZETA(I,J,bi,bj) |
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zetaMinusEta(I,J,bi,bj) = ZETA(I,J,bi,bj)-ETA(I,J,bi,bj) |
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ENDDO |
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ENDDO |
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DO j=1-Oly+1,sNy+Oly |
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DO i=1-Olx+1,sNx+Olx |
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ETAMEAN(I,J,bi,bj) =QUART*( |
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& ETA(I,J-1,bi,bj) + ETA(I-1,J-1,bi,bj) |
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& +ETA(I,J ,bi,bj) + ETA(I-1,J ,bi,bj)) |
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ZETAMEAN(I,J,bi,bj)=QUART*( |
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& ZETA(I,J-1,bi,bj) + ZETA(I-1,J-1,bi,bj) |
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& +ZETA(I,J ,bi,bj) + ZETA(I-1,J ,bi,bj)) |
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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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|
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DO J=1,sNy |
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DO I=1,sNx |
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AA1=( etaPlusZeta(I ,J-1,bi,bj) * _recip_dxF(I ,J-1,bi,bj) |
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& +etaPlusZeta(I ,J ,bi,bj) * _recip_dxF(I ,J ,bi,bj) |
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& )*0.5 _d 0 * _recip_dxV(I,J,bi,bj) * UVM(I,J,bi,bj) |
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AA2=( etaPlusZeta(I-1,J-1,bi,bj) * _recip_dxF(I-1,J-1,bi,bj) |
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& +etaPlusZeta(I-1,J ,bi,bj) * _recip_dxF(I-1,J ,bi,bj) |
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& )*0.5 _d 0 * _recip_dxV(I,J,bi,bj) * UVM(I,J,bi,bj) |
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AA3= 0.5 _d 0 *(ETA(I-1,J ,bi,bj)+ETA(I,J ,bi,bj)) |
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AA4= 0.5 _d 0 *(ETA(I-1,J-1,bi,bj)+ETA(I,J-1,bi,bj)) |
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AA5= -(AA3-AA4) * _tanPhiAtV(I,J,bi,bj) |
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& * _recip_dyU(I,J,bi,bj)*recip_rSphere |
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AA6=TWO*ETAMEAN(I,J,bi,bj) *recip_rSphere*recip_rSphere |
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& * _tanPhiAtV(I,J,bi,bj) * _tanPhiAtV(I,J,bi,bj) |
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AU(I,J,bi,bj)=-AA2 |
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CU(I,J,bi,bj)=-AA1 |
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BU(I,J,bi,bj)=(ONE-UVM(I,J,bi,bj)) |
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& - AU(I,J,bi,bj) - CU(I,J,bi,bj) |
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& + ((AA3+AA4)*_recip_dyU(I,J,bi,bj)*_recip_dyU(I,J,bi,bj) |
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& + AA5 + AA6 |
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& + AMASS(I,J,bi,bj)/SEAICE_deltaTdyn |
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& + DRAGS(I,J,bi,bj) |
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& )*UVM(I,J,bi,bj) |
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END DO |
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END DO |
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|
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DO J=1,sNy |
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AU(1,J,bi,bj)=ZERO |
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CU(sNx,J,bi,bj)=ZERO |
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CU(1,J,bi,bj)=CU(1,J,bi,bj)/BU(1,J,bi,bj) |
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END DO |
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|
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C now set up right-hand side |
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DO J=1-Oly,sNy+Oly-1 |
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DO I=1-Olx,sNx+Olx-1 |
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vDiffY(I,J) = 0.5 _d 0 * ( |
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& VICEC(I+1,J+1,bi,bj) + VICEC(I ,J+1,bi,bj) |
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& -VICEC(I+1,J ,bi,bj) - VICEC(I ,J ,bi,bj) ) |
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vDiffX(I,J) = 0.5 _d 0 * ( |
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& VICEC(I+1,J+1,bi,bj) + VICEC(I+1,J ,bi,bj) |
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& -VICEC(I ,J+1,bi,bj) - VICEC(I ,J ,bi,bj) ) |
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ENDDO |
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ENDDO |
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DO J=1,sNy |
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DO I=1,sNx |
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FXY(I,J,bi,bj)=DRAGA(I,J,bi,bj)*VICEC(I,J,bi,bj) |
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& +FORCEX(I,J,bi,bj) |
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& + ( zetaMinusEta(I ,J ,bi,bj) * vDiffY(I ,J ) |
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& + zetaMinusEta(I ,J-1,bi,bj) * vDiffY(I ,J-1) |
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& - zetaMinusEta(I-1,J ,bi,bj) * vDiffY(I-1,J ) |
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& - zetaMinusEta(I-1,J-1,bi,bj) * vDiffY(I-1,J-1) |
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& )* 0.5 _d 0 * |
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& _recip_dxV(I,J,bi,bj) * _recip_dyU(I,J,bi,bj) |
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& |
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& + ( ETA (I ,J ,bi,bj) * vDiffX(I ,J ) |
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& * _recip_dxF(I ,J,bi,bj) |
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& + ETA (I-1,J ,bi,bj) * vDiffX(I-1,J ) |
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& * _recip_dxF(I-1,J,bi,bj) |
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& - ETA (I ,J-1,bi,bj) * vDiffX(I ,J-1) |
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& * _recip_dxF(I ,J-1,bi,bj) |
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& - ETA (I-1,J-1,bi,bj) * vDiffX(I-1,J-1) |
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& * _recip_dxF(I-1,J-1,bi,bj) |
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& ) * 0.5 _d 0 * _recip_dyU(I,J,bi,bj) |
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& |
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& -(etaPlusZeta(I ,J ,bi,bj)+etaPlusZeta(I ,J-1,bi,bj) |
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& -etaPlusZeta(I-1,J-1,bi,bj)-etaPlusZeta(I-1,J ,bi,bj)) |
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& * VICEC(I,J,bi,bj) |
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& * _tanPhiAtV(I,J,bi,bj) |
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& * 0.5 _d 0 * _recip_dxV(I,J,bi,bj)*recip_rSphere |
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& |
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& -(ETAMEAN(I,J,bi,bj)+ZETAMEAN(I,J,bi,bj)) |
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& *(VICEC(I+1,J,bi,bj) - VICEC(I-1,J,bi,bj)) |
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& * _tanPhiAtV(I,J,bi,bj) |
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& * 1.0 _d 0 /( _dxG(I,J,bi,bj) + _dxG(I-1,J,bi,bj) ) |
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& *recip_rSphere |
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& |
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& -ETAMEAN(I,J,bi,bj) |
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& *(VICEC(I+1,J,bi,bj) - VICEC(I-1,J,bi,bj)) |
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& *TWO* _tanPhiAtV(I,J,bi,bj) |
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& * 1.0 _d 0 /( _dxG(I,J,bi,bj) + _dxG(I-1,J,bi,bj) ) |
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& *recip_rSphere |
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|
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UVRT1(I,J,bi,bj)= |
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& 0.5 _d 0 * (ETA(I-1,J-1,bi,bj)+ETA(I,J-1,bi,bj)) |
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& * _recip_dyU(I,J,bi,bj) * _recip_dyU(I,J,bi,bj) |
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& - ETAMEAN(I,J,bi,bj) * _tanPhiAtV(I,J-1,bi,bj) |
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& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj)*recip_rSphere |
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& + TWO*ETAMEAN(I,J,bi,bj) * _tanPhiAtV(I,J,bi,bj) |
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& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj)*recip_rSphere |
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UVRT2(I,J,bi,bj)= |
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& 0.5 _d 0 * (ETA(I-1,J,bi,bj)+ETA(I,J,bi,bj)) |
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& * _recip_dyU(I,J,bi,bj) * _recip_dyU(I,J,bi,bj) |
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& + ETAMEAN(I,J,bi,bj) * _tanPhiAtV(I,J+1,bi,bj) |
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& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj)*recip_rSphere |
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& - TWO*ETAMEAN(I,J,bi,bj) * _tanPhiAtV(I,J,bi,bj) |
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& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj)*recip_rSphere |
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END DO |
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END DO |
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|
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ENDDO |
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ENDDO |
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|
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C NOW DO ITERATION |
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100 CONTINUE |
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|
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cph--- iteration starts here |
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cph--- need to kick out goto |
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phexit = -1 |
| 242 |
|
| 243 |
C ITERATION START ----------------------------------------------------- |
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ LOOP = iteration uice |
| 246 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
| 247 |
|
| 248 |
DO 8000 M=1, solv_max_iters |
| 249 |
cph( |
| 250 |
IF ( phexit .EQ. -1 ) THEN |
| 251 |
cph) |
| 252 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 253 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 254 |
C NOW SET U(3)=U(1) |
| 255 |
DO J=1,sNy |
| 256 |
DO I=1,sNx |
| 257 |
UICE(I,J,3,bi,bj)=UICE(I,J,1,bi,bj) |
| 258 |
END DO |
| 259 |
END DO |
| 260 |
|
| 261 |
DO 1200 J=1,sNy |
| 262 |
DO I=1,sNx |
| 263 |
IF(I.EQ.1) THEN |
| 264 |
AA2=(etaPlusZeta(I-1,J-1,bi,bj) * _recip_dxF(I-1,J-1,bi,bj) |
| 265 |
& +etaPlusZeta(I-1,J ,bi,bj) * _recip_dxF(I-1,J ,bi,bj) |
| 266 |
& )*0.5 _d 0 * _recip_dxV(I,J,bi,bj) |
| 267 |
AA3=AA2*UICE(I-1,J,1,bi,bj)*UVM(I,J,bi,bj) |
| 268 |
ELSE IF(I.EQ.sNx) THEN |
| 269 |
AA1=(etaPlusZeta(I ,J-1,bi,bj) * _recip_dxF(I ,J-1,bi,bj) |
| 270 |
& +etaPlusZeta(I ,J ,bi,bj) * _recip_dxF(I ,J ,bi,bj) |
| 271 |
& )*0.5 _d 0 * _recip_dxV(I,J,bi,bj) |
| 272 |
AA3=AA1*UICE(I+1,J,1,bi,bj)*UVM(I,J,bi,bj) |
| 273 |
ELSE |
| 274 |
AA3=ZERO |
| 275 |
END IF |
| 276 |
URT(I)=FXY(I,J,bi,bj)+AA3 |
| 277 |
& +UVRT1(I,J,bi,bj)*UICE(I,J-1,1,bi,bj) |
| 278 |
& +UVRT2(I,J,bi,bj)*UICE(I,J+1,1,bi,bj) |
| 279 |
URT(I)=URT(I)*UVM(I,J,bi,bj) |
| 280 |
END DO |
| 281 |
|
| 282 |
DO I=1,sNx |
| 283 |
CUU(I)=CU(I,J,bi,bj) |
| 284 |
END DO |
| 285 |
URT(1)=URT(1)/BU(1,J,bi,bj) |
| 286 |
DO I=2,sNx |
| 287 |
IM=I-1 |
| 288 |
CUU(I)=CUU(I)/(BU(I,J,bi,bj)-AU(I,J,bi,bj)*CUU(IM)) |
| 289 |
URT(I)=(URT(I)-AU(I,J,bi,bj)*URT(IM)) |
| 290 |
& /(BU(I,J,bi,bj)-AU(I,J,bi,bj)*CUU(IM)) |
| 291 |
END DO |
| 292 |
DO I=1,sNx-1 |
| 293 |
J1=sNx-I |
| 294 |
J2=J1+1 |
| 295 |
URT(J1)=URT(J1)-CUU(J1)*URT(J2) |
| 296 |
END DO |
| 297 |
DO I=1,sNx |
| 298 |
UICE(I,J,1,bi,bj)=UICE(I,J,3,bi,bj) |
| 299 |
& +WFAU*(URT(I)-UICE(I,J,3,bi,bj)) |
| 300 |
END DO |
| 301 |
|
| 302 |
1200 CONTINUE |
| 303 |
|
| 304 |
ENDDO |
| 305 |
ENDDO |
| 306 |
|
| 307 |
IF(MOD(M,SOLV_NCHECK).EQ.0) THEN |
| 308 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 309 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 310 |
S1=ZERO |
| 311 |
DO J=1,sNy |
| 312 |
DO I=1,sNx |
| 313 |
UERR(I,J,bi,bj)=(UICE(I,J,1,bi,bj)-UICE(I,J,3,bi,bj)) |
| 314 |
& *UVM(I,J,bi,bj) |
| 315 |
S1=MAX(ABS(UERR(I,J,bi,bj)),S1) |
| 316 |
END DO |
| 317 |
END DO |
| 318 |
_GLOBAL_MAX_R8( S1, myThid ) |
| 319 |
ENDDO |
| 320 |
ENDDO |
| 321 |
C SAFEGUARD AGAINST BAD FORCING ETC |
| 322 |
IF(M.GT.1.AND.S1.GT.S1A) WFAU=WFAU2 |
| 323 |
S1A=S1 |
| 324 |
IF(S1.LT.LSR_ERROR) THEN |
| 325 |
ICOUNT1=M |
| 326 |
cph( |
| 327 |
cph GO TO 8001 |
| 328 |
phexit = 1 |
| 329 |
cph) |
| 330 |
END IF |
| 331 |
END IF |
| 332 |
CALL EXCH_3D_RL( UICE, 3, myThid ) |
| 333 |
|
| 334 |
cph( |
| 335 |
END IF |
| 336 |
cph) |
| 337 |
|
| 338 |
8000 CONTINUE |
| 339 |
cph 8001 CONTINUE |
| 340 |
C ITERATION END ----------------------------------------------------- |
| 341 |
|
| 342 |
IF ( debugLevel .GE. debLevB ) THEN |
| 343 |
_BEGIN_MASTER( myThid ) |
| 344 |
write(*,'(A,I6,1P2E22.14)')' U lsr iters, error = ',ICOUNT1,S1 |
| 345 |
_END_MASTER( myThid ) |
| 346 |
ENDIF |
| 347 |
|
| 348 |
C NOW FOR VICE |
| 349 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 350 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 351 |
|
| 352 |
DO J=1,sNy |
| 353 |
DO I=1,sNx |
| 354 |
AA1=0.5 _d 0 * _recip_dyU(I,J,bi,bj) * _recip_dyU(I,J,bi,bj) |
| 355 |
& * (etaPlusZeta(I-1,J ,bi,bj) + etaPlusZeta(I,J ,bi,bj)) |
| 356 |
AA2=0.5 _d 0 * _recip_dyU(I,J,bi,bj) * _recip_dyU(I,J,bi,bj) |
| 357 |
& * (etaPlusZeta(I-1,J-1,bi,bj) + etaPlusZeta(I,J-1,bi,bj)) |
| 358 |
AA3= (ETA(I ,J-1,bi,bj) * _recip_dxV(I,J,bi,bj) |
| 359 |
& +ETA(I ,J ,bi,bj) * _recip_dxV(I,J,bi,bj) |
| 360 |
& )* 0.5 _d 0 * _recip_dxV(I,J,bi,bj) |
| 361 |
AA4= (ETA(I-1,J-1,bi,bj)+ETA(I-1,J,bi,bj))*0.5 _d 0 |
| 362 |
& *_recip_dxV(I,J,bi,bj) * _recip_dxV(I,J,bi,bj) |
| 363 |
AA5=(zetaMinusEta(I-1,J ,bi,bj) + zetaMinusEta(I,J ,bi,bj) |
| 364 |
& -zetaMinusEta(I-1,J-1,bi,bj) - zetaMinusEta(I,J-1,bi,bj) |
| 365 |
& )* _tanPhiAtV(I,J,bi,bj) |
| 366 |
& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj)*recip_rSphere |
| 367 |
|
| 368 |
AA6=TWO*ETAMEAN(I,J,bi,bj) * recip_rSphere*recip_rSphere |
| 369 |
& * _tanPhiAtV(I,J,bi,bj) * _tanPhiAtV(I,J,bi,bj) |
| 370 |
|
| 371 |
AV(I,J,bi,bj)=( |
| 372 |
& - AA2 |
| 373 |
& - (ZETAMEAN(I,J,bi,bj)-ETAMEAN(I,J,bi,bj)) |
| 374 |
& * _tanPhiAtV(I,J-1,bi,bj) |
| 375 |
& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj)*recip_rSphere |
| 376 |
& -ETAMEAN(I,J,bi,bj)*TWO* _tanPhiAtV(I,J,bi,bj) |
| 377 |
& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj)*recip_rSphere |
| 378 |
& )*UVM(I,J,bi,bj) |
| 379 |
CV(I,J,bi,bj)=( |
| 380 |
& -AA1 |
| 381 |
& +(ZETAMEAN(I,J,bi,bj)-ETAMEAN(I,J,bi,bj)) |
| 382 |
& * _tanPhiAtV(I,J+1,bi,bj) |
| 383 |
& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj)*recip_rSphere |
| 384 |
& +ETAMEAN(I,J,bi,bj)*TWO* _tanPhiAtV(I,J,bi,bj) |
| 385 |
& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj)*recip_rSphere |
| 386 |
& )*UVM(I,J,bi,bj) |
| 387 |
BV(I,J,bi,bj)= (ONE-UVM(I,J,bi,bj)) |
| 388 |
& +( (AA1+AA2) + (AA3+AA4) + AA5 + AA6 |
| 389 |
& +AMASS(I,J,bi,bj)/SEAICE_deltaTdyn+DRAGS(I,J,bi,bj)) |
| 390 |
& *UVM(I,J,bi,bj) |
| 391 |
END DO |
| 392 |
END DO |
| 393 |
|
| 394 |
DO I=1,sNx |
| 395 |
AV(I,1,bi,bj)=ZERO |
| 396 |
CV(I,sNy,bi,bj)=ZERO |
| 397 |
CV(I,1,bi,bj)=CV(I,1,bi,bj)/BV(I,1,bi,bj) |
| 398 |
END DO |
| 399 |
|
| 400 |
C now set up right-hand-side |
| 401 |
DO J=1-Oly,sNy+Oly-1 |
| 402 |
DO I=1-Olx,sNx+Olx-1 |
| 403 |
uDiffY(I,J) = 0.5 _d 0 * ( |
| 404 |
& UICEC(I+1,J+1,bi,bj) + UICEC(I ,J+1,bi,bj) |
| 405 |
5 -UICEC(I+1,J ,bi,bj) - UICEC(I ,J ,bi,bj) ) |
| 406 |
ENDDO |
| 407 |
ENDDO |
| 408 |
DO J=1,sNy |
| 409 |
DO I=1,sNx |
| 410 |
FXY(I,J,bi,bj)=-DRAGA(I,J,bi,bj)*UICEC(I,J,bi,bj) |
| 411 |
& +FORCEY(I,J,bi,bj) |
| 412 |
& |
| 413 |
& + HALF*(UICEC(I+1,J,bi,bj)-UICEC(I-1,J,bi,bj)) |
| 414 |
& *(zetaMinusEta(I-1,J ,bi,bj)+zetaMinusEta(I,J ,bi,bj) |
| 415 |
& -zetaMinusEta(I-1,J-1,bi,bj)-zetaMinusEta(I,J-1,bi,bj)) |
| 416 |
& * 1. _d 0 /( _dxG(I,J,bi,bj) + _dxG(I-1,J,bi,bj)) |
| 417 |
& * _recip_dyU(I,J,bi,bj) |
| 418 |
& |
| 419 |
& +HALF*(ZETAMEAN(I,J,bi,bj) - ETAMEAN(I,J,bi,bj)) |
| 420 |
& *((UICEC(I+1,J+1,bi,bj) - UICEC(I-1,J+1,bi,bj)) |
| 421 |
& * 2. _d 0 /( _dxG(I,J+1,bi,bj) + _dxG(I-1,J+1,bi,bj)) |
| 422 |
& -(UICEC(I+1,J-1,bi,bj)-UICEC(I-1,J-1,bi,bj)) |
| 423 |
& * 2. _d 0 /( _dxG(I,J-1,bi,bj) + _dxG(I-1,J-1,bi,bj))) |
| 424 |
& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj) |
| 425 |
& |
| 426 |
& +(ETA(I ,J ,bi,bj) * uDiffY(I ,J ) |
| 427 |
& +ETA(I ,J-1,bi,bj) * uDiffY(I ,J-1) |
| 428 |
& -ETA(I-1,J ,bi,bj) * uDiffY(I-1,J ) |
| 429 |
& -ETA(I-1,J-1,bi,bj) * uDiffY(I-1,J-1) |
| 430 |
& )*0.5 _d 0* _recip_dxV(I,J,bi,bj)* _recip_dyU(I,J,bi,bj) |
| 431 |
& |
| 432 |
& +(ETA(I ,J ,bi,bj) + ETA(I ,J-1,bi,bj) |
| 433 |
& -ETA(I-1,J-1,bi,bj) - ETA(I-1,J ,bi,bj)) |
| 434 |
& * UICEC(I,J,bi,bj) |
| 435 |
& * _tanPhiAtV(I,J,bi,bj) |
| 436 |
& * 0.5 _d 0 * _recip_dxV(I,J,bi,bj)*recip_rSphere |
| 437 |
& +ETAMEAN(I,J,bi,bj) * _tanPhiAtV(I,J,bi,bj) |
| 438 |
& *(UICEC(I+1,J,bi,bj)-UICEC(I-1,J,bi,bj)) |
| 439 |
& * 0.5 _d 0 * _recip_dxV(I,J,bi,bj)*recip_rSphere |
| 440 |
& |
| 441 |
& +ETAMEAN(I,J,bi,bj)*TWO * _tanPhiAtV(I,J,bi,bj) |
| 442 |
& *(UICEC(I+1,J,bi,bj)-UICEC(I-1,J,bi,bj)) |
| 443 |
& * 1. _d 0 /( _dxG(I,J,bi,bj) + _dxG(I-1,J,bi,bj)) |
| 444 |
& *recip_rSphere |
| 445 |
UVRT1(I,J,bi,bj)= 0.5 _d 0 * ( |
| 446 |
& ETA(I-1,J-1,bi,bj) * _recip_dxV(I,J,bi,bj) |
| 447 |
& +ETA(I-1,J ,bi,bj) * _recip_dxV(I,J,bi,bj) |
| 448 |
& ) * _recip_dxV(I,J,bi,bj) |
| 449 |
UVRT2(I,J,bi,bj)= 0.5 _d 0 * ( |
| 450 |
& ETA(I ,J-1,bi,bj) * _recip_dxV(I,J,bi,bj) |
| 451 |
& +ETA(I ,J ,bi,bj) * _recip_dxV(I,J,bi,bj) |
| 452 |
& ) * _recip_dxV(I,J,bi,bj) |
| 453 |
|
| 454 |
END DO |
| 455 |
END DO |
| 456 |
|
| 457 |
ENDDO |
| 458 |
ENDDO |
| 459 |
|
| 460 |
C NOW DO ITERATION |
| 461 |
300 CONTINUE |
| 462 |
|
| 463 |
cph--- iteration starts here |
| 464 |
cph--- need to kick out goto |
| 465 |
phexit = -1 |
| 466 |
|
| 467 |
C ITERATION START ----------------------------------------------------- |
| 468 |
#ifdef ALLOW_AUTODIFF_TAMC |
| 469 |
CADJ LOOP = iteration vice |
| 470 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
| 471 |
|
| 472 |
DO 9000 M=1, solv_max_iters |
| 473 |
cph( |
| 474 |
IF ( phexit .EQ. -1 ) THEN |
| 475 |
cph) |
| 476 |
C NOW SET U(3)=U(1) |
| 477 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 478 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 479 |
|
| 480 |
DO J=1,sNy |
| 481 |
DO I=1,sNx |
| 482 |
VICE(I,J,3,bi,bj)=VICE(I,J,1,bi,bj) |
| 483 |
END DO |
| 484 |
END DO |
| 485 |
|
| 486 |
DO I=1,sNx |
| 487 |
DO J=1,sNy |
| 488 |
IF(J.EQ.1) THEN |
| 489 |
AA2= _recip_dyU(I,J,bi,bj) * _recip_dyU(I,J,bi,bj) |
| 490 |
& * 0.5 _d 0 *( |
| 491 |
& etaPlusZeta(I-1,J-1,bi,bj) + etaPlusZeta(I,J-1,bi,bj) |
| 492 |
& ) |
| 493 |
AA3=( AA2 |
| 494 |
& +( ZETAMEAN(I,J,bi,bj)-ETAMEAN(I,J,bi,bj) ) |
| 495 |
& * _tanPhiAtV(I,J-1,bi,bj) |
| 496 |
& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj)*recip_rSphere |
| 497 |
& + ETAMEAN(I,J,bi,bj)*TWO* _tanPhiAtV(I,J,bi,bj) |
| 498 |
& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj)*recip_rSphere ) |
| 499 |
& *VICE(I,J-1,1,bi,bj)*UVM(I,J,bi,bj) |
| 500 |
ELSE IF(J.EQ.sNy) THEN |
| 501 |
AA1= _recip_dyU(I,J,bi,bj) * _recip_dyU(I,J,bi,bj) |
| 502 |
& * 0.5 _d 0 * ( |
| 503 |
& etaPlusZeta(I-1,J,bi,bj) + etaPlusZeta(I,J,bi,bj) |
| 504 |
& ) |
| 505 |
AA3=( AA1 |
| 506 |
& -( ZETAMEAN(I,J,bi,bj)-ETAMEAN(I,J,bi,bj)) |
| 507 |
& * _tanPhiAtV(I,J+1,bi,bj) |
| 508 |
& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj)*recip_rSphere |
| 509 |
& - ETAMEAN(I,J,bi,bj)*TWO* _tanPhiAtV(I,J,bi,bj) |
| 510 |
& * 0.5 _d 0 * _recip_dyU(I,J,bi,bj)*recip_rSphere ) |
| 511 |
& *VICE(I,J+1,1,bi,bj)*UVM(I,J,bi,bj) |
| 512 |
ELSE |
| 513 |
AA3=ZERO |
| 514 |
END IF |
| 515 |
|
| 516 |
VRT(J)=FXY(I,J,bi,bj)+AA3+UVRT1(I,J,bi,bj)*VICE(I-1,J,1,bi,bj) |
| 517 |
& +UVRT2(I,J,bi,bj)*VICE(I+1,J,1,bi,bj) |
| 518 |
VRT(J)=VRT(J)*UVM(I,J,bi,bj) |
| 519 |
END DO |
| 520 |
|
| 521 |
DO J=1,sNy |
| 522 |
CVV(J)=CV(I,J,bi,bj) |
| 523 |
END DO |
| 524 |
VRT(1)=VRT(1)/BV(I,1,bi,bj) |
| 525 |
DO J=2,sNy |
| 526 |
JM=J-1 |
| 527 |
CVV(J)=CVV(J)/(BV(I,J,bi,bj)-AV(I,J,bi,bj)*CVV(JM)) |
| 528 |
VRT(J)=(VRT(J)-AV(I,J,bi,bj)*VRT(JM)) |
| 529 |
& /(BV(I,J,bi,bj)-AV(I,J,bi,bj)*CVV(JM)) |
| 530 |
END DO |
| 531 |
DO J=1,sNy-1 |
| 532 |
J1=sNy-J |
| 533 |
J2=J1+1 |
| 534 |
VRT(J1)=VRT(J1)-CVV(J1)*VRT(J2) |
| 535 |
END DO |
| 536 |
DO J=1,sNy |
| 537 |
VICE(I,J,1,bi,bj)=VICE(I,J,3,bi,bj) |
| 538 |
& +WFAV*(VRT(J)-VICE(I,J,3,bi,bj)) |
| 539 |
END DO |
| 540 |
ENDDO |
| 541 |
|
| 542 |
ENDDO |
| 543 |
ENDDO |
| 544 |
|
| 545 |
IF(MOD(M,SOLV_NCHECK).EQ.0) THEN |
| 546 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 547 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 548 |
S2=ZERO |
| 549 |
DO J=1,sNy |
| 550 |
DO I=1,sNx |
| 551 |
UERR(I,J,bi,bj)=(VICE(I,J,1,bi,bj)-VICE(I,J,3,bi,bj)) |
| 552 |
& *UVM(I,J,bi,bj) |
| 553 |
S2=MAX(ABS(UERR(I,J,bi,bj)),S2) |
| 554 |
END DO |
| 555 |
END DO |
| 556 |
_GLOBAL_MAX_R8( S2, myThid ) |
| 557 |
ENDDO |
| 558 |
ENDDO |
| 559 |
C SAFEGUARD AGAINST BAD FORCING ETC |
| 560 |
IF(M.GT.1.AND.S2.GT.S2A) WFAV=WFAV2 |
| 561 |
S2A=S2 |
| 562 |
IF(S2.LT.LSR_ERROR) THEN |
| 563 |
ICOUNT2=M |
| 564 |
cph( |
| 565 |
cph GO TO 9001 |
| 566 |
phexit = 1 |
| 567 |
cph) |
| 568 |
END IF |
| 569 |
END IF |
| 570 |
|
| 571 |
CALL EXCH_3D_RL( VICE, 3, myThid ) |
| 572 |
|
| 573 |
cph( |
| 574 |
END IF |
| 575 |
cph) |
| 576 |
|
| 577 |
9000 CONTINUE |
| 578 |
cph 9001 CONTINUE |
| 579 |
C ITERATION END ----------------------------------------------------- |
| 580 |
|
| 581 |
IF ( debugLevel .GE. debLevB ) THEN |
| 582 |
_BEGIN_MASTER( myThid ) |
| 583 |
write(*,'(A,I6,1P2E22.14)')' V lsr iters, error = ',ICOUNT2,S2 |
| 584 |
_END_MASTER( myThid ) |
| 585 |
ENDIF |
| 586 |
|
| 587 |
C NOW END |
| 588 |
C NOW MAKE COROLIS TERM IMPLICIT |
| 589 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 590 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 591 |
DO J=1,sNy |
| 592 |
DO I=1,sNx |
| 593 |
UICE(I,J,1,bi,bj)=UICE(I,J,1,bi,bj)*UVM(I,J,bi,bj) |
| 594 |
VICE(I,J,1,bi,bj)=VICE(I,J,1,bi,bj)*UVM(I,J,bi,bj) |
| 595 |
END DO |
| 596 |
END DO |
| 597 |
ENDDO |
| 598 |
ENDDO |
| 599 |
CALL EXCH_UV_3D_RL( UICE, VICE, .TRUE., 3, myThid ) |
| 600 |
|
| 601 |
#endif /* SEAICE_ALLOW_DYNAMICS */ |
| 602 |
#endif /* SEAICE_CGRID */ |
| 603 |
|
| 604 |
RETURN |
| 605 |
END |
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