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C $Header: |
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#include "SEAICE_OPTIONS.h" |
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CStartOfInterface |
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SUBROUTINE growth( myTime, myIter, myThid ) |
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C /==========================================================\ |
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C | SUBROUTINE 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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|
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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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#include "SEAICE_EXTERNAL.h" |
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|
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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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#ifdef ALLOW_SEAICE |
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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, Q0, QS |
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_RL theta_old |
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|
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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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_RL AR ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy, nSx, nSy ) |
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|
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salinity_ice=4.0 _d 0 ! ICE SALINITY |
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TBC=271.2 _d 0-273.16 _d 0 ! FREEZING TEMP. OF SEA WATER |
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SDF=1000.0 _d 0/330.0 _d 0 ! RATIO OF WATER DESITY AND SNOW DENSITY |
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Q0=1.0D-06/302.0 _d +00 ! INVERSE HEAT OF FUSION OF ICE |
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QS=1.1 _d +08 ! HEAT OF FUSION OF SNOW |
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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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SEAICE_SALT(I,J,bi,bj)=ZERO |
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WATR(I,J,bi,bj)=ZERO |
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AR(I,J,bi,bj)=MIN(AREA(I,J,2,bi,bj), |
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& HEFF(I,J,2,bi,bj)*1.0 _d +04) |
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C NOW BALANCE THE HEAT IN OCEAN FIRT LEVEL |
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YNEG(I,J,bi,bj)=(theta(I,J,1,bi,bj)-TBC)*dRf(1)/72.0764 _d 0 |
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IF(YNEG(I,J,bi,bj).LE.ZERO) THEN |
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C SUPERCOOLING, CONVERT TO ICE |
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HEFF(I,J,1,bi,bj)=HEFF(I,J,1,bi,bj)-YNEG(I,J,bi,bj) |
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SEAICE_SALT(I,J,bi,bj)=SEAICE_SALT(I,J,bi,bj)-YNEG(I,J,bi,bj) |
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C HERE YNEG IS THE OCEAN TEMP. DIFFERENCE WITH SUPER-COOLING |
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YNEG(I,J,bi,bj)=TBC-theta(I,J,1,bi,bj) |
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theta(I,J,1,bi,bj)=TBC |
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ELSE |
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C NOW CORRECT ICE THICKNESS |
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GHEFF(I,J)=HEFF(I,J,1,bi,bj) |
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HEFF(I,J,3,bi,bj)=HEFF(I,J,1,bi,bj)-YNEG(I,J,bi,bj) |
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HEFF(I,J,1,bi,bj)=MAX(ZERO,HEFF(I,J,3,bi,bj)) |
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C NOW CORRECT YNEG |
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YNEG(I,J,bi,bj)=HEFF(I,J,1,bi,bj)-HEFF(I,J,3,bi,bj) |
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SEAICE_SALT(I,J,bi,bj)=SEAICE_SALT(I,J,bi,bj) |
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& +(HEFF(I,J,1,bi,bj)-GHEFF(I,J)) |
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theta_old=theta(I,J,1,bi,bj) |
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theta(I,J,1,bi,bj)= |
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& (YNEG(I,J,bi,bj)*72.0764 _d 0/dRf(1)+TBC) |
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C HERE YNEG IS THE OCEAN TEMP. DIFFERENCE WITH NO SUPER-COOLING |
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YNEG(I,J,bi,bj)=theta(I,J,1,bi,bj)-theta_old |
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ENDIF |
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C surfaceTendencyTice is the equivalent amount of surface heating |
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C implied by above change in surface level temperature (YNEG). |
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C Units are degrees/s (>0 for ocean warming). |
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surfaceTendencyTice(I,J,bi,bj)=YNEG(I,J,bi,bj)/deltaTtracer |
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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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C GROWTH SUBROUTINE CALCULATES TOTAL GROWTH TENDENCIES, |
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C INCLUDING SNOWFALL |
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CALL GROATB(A22,myThid) |
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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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C NOW CALCULATE CORRECTED GROWTH |
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DO J=1,sNy |
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DO I=1,sNx |
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cdm ===> why is following line here? |
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cdm FICE(I,J,bi,bj)=FICE(I,J,bi,bj) |
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GHEFF(I,J)=-DELTAT*FICE(I,J,bi,bj) |
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GAREA(I,J)=HSNOW(I,J,bi,bj)*QS |
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IF(GHEFF(I,J).GT.ZERO.AND.GHEFF(I,J).LE.GAREA(I,J)) THEN |
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HSNOW(I,J,bi,bj)=HSNOW(I,J,bi,bj)-GHEFF(I,J)/QS |
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C SNOW CONVERTED INTO WATER AND THEN INTO ICE |
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SEAICE_SALT(I,J,bi,bj)=SEAICE_SALT(I,J,bi,bj) |
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& -(GHEFF(I,J)/QS)/SDF/0.920 _d 0*AR(I,J,bi,bj) |
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WATR(I,J,bi,bj)=WATR(I,J,bi,bj) |
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& -(GHEFF(I,J)/QS)/SDF/0.920 _d 0*AR(I,J,bi,bj) |
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FICE(I,J,bi,bj)=ZERO |
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ELSE IF(GHEFF(I,J).GT.GAREA(I,J)) THEN |
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FICE(I,J,bi,bj)=-(GHEFF(I,J)-GAREA(I,J))/DELTAT |
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SEAICE_SALT(I,J,bi,bj)=SEAICE_SALT(I,J,bi,bj) |
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& -HSNOW(I,J,bi,bj)/SDF/0.920 _d 0*AR(I,J,bi,bj) |
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WATR(I,J,bi,bj)=WATR(I,J,bi,bj) |
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& -HSNOW(I,J,bi,bj)/SDF/0.920*AR(I,J,bi,bj) |
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HSNOW(I,J,bi,bj)=0.0 |
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END IF |
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ENDDO |
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ENDDO |
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C NOW GET TOTAL GROWTH RATE |
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DO J=1,sNy |
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DO I=1,sNx |
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FHEFF(I,J,bi,bj)=FICE(I,J,bi,bj)*AR(I,J,bi,bj) |
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& +(ONE-AR(I,J,bi,bj))*FO(I,J,bi,bj) |
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ENDDO |
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ENDDO |
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C NOW UPDATE AREA |
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DO J=1,sNy |
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DO I=1,sNx |
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GHEFF(I,J)=-DELTAT*FHEFF(I,J,bi,bj)*Q0 |
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GAREA(I,J)=DELTAT*FO(I,J,bi,bj)*Q0 |
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GHEFF(I,J)=-ONE*MIN(HEFF(I,J,1,bi,bj),GHEFF(I,J)) |
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GAREA(I,J)=MAX(ZERO,GAREA(I,J)) |
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HCORR(I,J,bi,bj)=MIN(ZERO,GHEFF(I,J)) |
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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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GAREA(I,J)=TWO*(ONE-AREA(I,J,2,bi,bj))*GAREA(I,J)/HO |
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& +HALF*HCORR(I,J,bi,bj)*AREA(I,J,2,bi,bj) |
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& /(HEFF(I,J,1,bi,bj)+.00001 _d 0) |
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AREA(I,J,1,bi,bj)=AREA(I,J,1,bi,bj)+GAREA(I,J) |
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ENDDO |
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ENDDO |
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|
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C NOW UPDATE HEFF |
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DO J=1,sNy |
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DO I=1,sNx |
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GHEFF(I,J)=-DELTAT*FICE(I,J,bi,bj)*Q0*AR(I,J,bi,bj) |
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GHEFF(I,J)=-ONE*MIN(HEFF(I,J,1,bi,bj),GHEFF(I,J)) |
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HEFF(I,J,1,bi,bj)=HEFF(I,J,1,bi,bj)+GHEFF(I,J) |
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SEAICE_SALT(I,J,bi,bj)=SEAICE_SALT(I,J,bi,bj)+GHEFF(I,J) |
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C NOW CALCULATE QNETI UNDER ICE IF ANY |
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QNETI(I,J,bi,bj)=(GHEFF(I,J)-DELTAT*FICE(I,J,bi,bj) |
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& *Q0*AR(I,J,bi,bj))/Q0/DELTAT |
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ENDDO |
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ENDDO |
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C NOW GET TOTAL QNET AND QSW |
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DO J=1,sNy |
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DO I=1,sNx |
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QNET(I,J,bi,bj)=QNETI(I,J,bi,bj)*AR(I,J,bi,bj) |
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& +(ONE-AR(I,J,bi,bj))*QNETO(I,J,bi,bj) |
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QSW(I,J,bi,bj)=QSWI(I,J,bi,bj)*AR(I,J,bi,bj) |
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& +(ONE-AR(I,J,bi,bj))*QSWO(I,J,bi,bj) |
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ENDDO |
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ENDDO |
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|
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C NOW UPDATE OTHER THINGS |
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DO J=1,sNy |
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DO I=1,sNx |
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IF(FICE(I,J,bi,bj).GT.ZERO) THEN |
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C FREEZING, PRECIP ADDED AS SNOW |
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HSNOW(I,J,bi,bj)=HSNOW(I,J,bi,bj) |
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& +DELTAT*PRECIP(I,J,bi,bj)*AREA(I,J,2,bi,bj)*SDF |
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ELSE |
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C ADD PRECIP AS RAIN, WATER CONVERTED INTO ICE BY /0.920 _d 0 |
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SEAICE_SALT(I,J,bi,bj)=SEAICE_SALT(I,J,bi,bj) |
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& -PRECIP(I,J,bi,bj)*AREA(I,J,2,bi,bj)*DELTAT/0.920 _d 0 |
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WATR(I,J,bi,bj)=WATR(I,J,bi,bj) |
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& -PRECIP(I,J,bi,bj)*AREA(I,J,2,bi,bj)*DELTAT/0.920 _d 0 |
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ENDIF |
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c Now add in precip over open water directly into ocean as negative salt |
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SEAICE_SALT(I,J,bi,bj)=SEAICE_SALT(I,J,bi,bj) |
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& -PRECIP(I,J,bi,bj)*(ONE-AREA(I,J,2,bi,bj)) |
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& *DELTAT/0.920 _d 0 |
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WATR(I,J,bi,bj)=WATR(I,J,bi,bj) |
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& -PRECIP(I,J,bi,bj)*(ONE-AREA(I,J,2,bi,bj)) |
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& *DELTAT/0.920 _d 0 |
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C NOW GET FRESH WATER FLUX |
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EmPmR(I,J,bi,bj)=EVAP(I,J,bi,bj)-RUNOFF(I,J,bi,bj) |
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& +SEAICE_SALT(I,J,bi,bj)*0.92 _d 0/DELTAT |
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ENDDO |
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ENDDO |
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|
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#ifdef SEAICE_DEBUG |
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c CALL PLOT_FIELD_XYRS( UWIND,'Current UWIND ', myIter, myThid ) |
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c CALL PLOT_FIELD_XYRS( VWIND,'Current VWIND ', myIter, myThid ) |
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CALL PLOT_FIELD_XYRS( GWATX,'Current GWATX ', myIter, myThid ) |
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CALL PLOT_FIELD_XYRS( GWATY,'Current GWATY ', myIter, myThid ) |
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CALL PLOT_FIELD_XYRL( FO,'Current FO ', myIter, myThid ) |
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CALL PLOT_FIELD_XYRL( FHEFF,'Current FHEFF ', myIter, myThid ) |
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CALL PLOT_FIELD_XYRL( QSW,'Current QSW ', myIter, myThid ) |
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CALL PLOT_FIELD_XYRL( QNET,'Current QNET ', myIter, myThid ) |
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CALL PLOT_FIELD_XYRL( EmPmR,'Current EmPmR ', myIter, 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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GHEFF(I,J)=SQRT(UICE(I,J,1,bi,bj)**2+VICE(I,J,1,bi,bj)**2) |
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GAREA(I,J)=HEFF(I,J,1,bi,bj) |
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print*,'I J QNET:',I, J, QNET(i,j,bi,bj), QSW(I,J,bi,bj) |
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ENDDO |
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ENDDO |
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CALL PLOT_FIELD_XYRL( GHEFF,'Current UICE ', myIter, myThid ) |
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CALL PLOT_FIELD_XYRL( GAREA,'Current HEFF ', myIter, 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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if(HEFF(i,j,1,bi,bj).gt.1.) then |
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print '(A,2i4,3f10.2)','#### i j heff theta yneg',i,j, |
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& HEFF(i,j,1,bi,bj),theta(I,J,1,bi,bj),yneg(I,J,bi,bj) |
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print '(A,3f10.2)','QSW, QNET before/after correction', |
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& QSW(I,J,bi,bj),QNETI(I,J,bi,bj)*AR(I,J,bi,bj) |
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& +(ONE-AR(I,J,bi,bj))*QNETO(I,J,bi,bj), QNET(I,J,bi,bj) |
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endif |
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ENDDO |
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ENDDO |
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#endif SEAICE_DEBUG |
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|
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crg Added by Ralf Giering: do we need DO_WE_NEED_THIS ? |
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#define DO_WE_NEED_THIS |
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C NOW ZERO OUTSIDE POINTS |
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DO J=1,sNy |
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DO I=1,sNx |
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C NOW SET AREA(I,J,1,bi,bj)=0 WHERE NO ICE IS |
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AREA(I,J,1,bi,bj)=MIN(AREA(I,J,1,bi,bj) |
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& ,HEFF(I,J,1,bi,bj)/.0001 _d 0) |
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C NOW TRUNCATE AREA |
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#ifdef DO_WE_NEED_THIS |
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AREA(I,J,1,bi,bj)=MIN(ONE,AREA(I,J,1,bi,bj)) |
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AREA(I,J,1,bi,bj)=MAX(ZERO,AREA(I,J,1,bi,bj)) |
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HSNOW(I,J,bi,bj)=MAX(ZERO,HSNOW(I,J,bi,bj)) |
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#endif DO_WE_NEED_THIS |
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AREA(I,J,1,bi,bj)=AREA(I,J,1,bi,bj)*HEFFM(I,J,bi,bj) |
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HEFF(I,J,1,bi,bj)=HEFF(I,J,1,bi,bj)*HEFFM(I,J,bi,bj) |
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#ifdef DO_WE_NEED_THIS |
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HEFF(I,J,1,bi,bj)=MIN(MAX_HEFF,HEFF(I,J,1,bi,bj)) |
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#endif DO_WE_NEED_THIS |
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HSNOW(I,J,bi,bj)=HSNOW(I,J,bi,bj)*HEFFM(I,J,bi,bj) |
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ENDDO |
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ENDDO |
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|
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ENDDO |
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ENDDO |
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|
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#endif ALLOW_SEAICE |
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|
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RETURN |
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END |
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