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C $Header: /u/gcmpack/MITgcm/pkg/aim_v23/aim_do_physics.F,v 1.6 2004/04/18 21:38:40 jmc Exp $ |
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C $Name: $ |
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#include "AIM_OPTIONS.h" |
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CBOP |
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C !ROUTINE: AIM_DO_PHYSICS |
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C !INTERFACE: |
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SUBROUTINE AIM_DO_PHYSICS( bi, bj, myTime, myIter, myThid ) |
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C !DESCRIPTION: \bv |
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C *==================================================================* |
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C | S/R AIM_DO_PHYSICS |
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C *==================================================================* |
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C | Interface between atmospheric physics package and the |
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C | dynamical model. |
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C | Routine calls physics pacakge after setting surface BC. |
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C | Package should derive and set tendency terms |
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C | which can be included as external forcing terms in the dynamical |
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C | tendency routines. Packages should communicate this information |
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C | through common blocks. |
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C *==================================================================* |
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C \ev |
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C !USES: |
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IMPLICIT NONE |
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C -------------- Global variables ------------------------------------ |
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C-- size for MITgcm & Physics package : |
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#include "AIM_SIZE.h" |
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C-- MITgcm |
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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 "SURFACE.h" |
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C-- Physics package |
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#include "AIM_PARAMS.h" |
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#include "AIM_FFIELDS.h" |
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#include "AIM_GRID.h" |
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#include "com_physvar.h" |
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#include "com_forcing.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C bi,bj - Tile index |
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C myTime - Current time of simulation ( s ) |
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C myIter - Current iteration number in simulation |
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C myThid - Number of this instance of the routine |
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INTEGER bi, bj, myIter, myThid |
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_RL myTime |
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CEOP |
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#ifdef ALLOW_AIM |
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C == Local variables == |
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C I,J,K,I2 - Loop counters |
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C tYear - Fraction into year |
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C Katm - Atmospheric K index |
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C prcAtm :: total precip from the atmosphere [kg/m2/s] |
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C evpAtm :: evaporation to the atmosphere [kg/m2/s] (>0 if evaporate) |
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C flxSW :: net Short-Wave heat flux into the ocean (+=down) [W/m2] |
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INTEGER I,J,K,I2 |
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c INTEGER Katm |
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_RL tYear, yearLength |
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_RL prcAtm(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL evpAtm(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL flxSW (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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C_jmc: Because AIM physics LSC is not applied in the stratosphere (top level), |
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C ==> move water wapor from the stratos to the surface level. |
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DO j = 1-Oly, sNy+Oly |
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DO i = 1-Olx, sNx+Olx |
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k = ksurfC(i,j,bi,bj) |
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IF (k.LE.Nr) |
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& salt(i,j,k,bi,bj) = salt(i,j,k,bi,bj) |
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& + salt(i,j,Nr,bi,bj)*drF(Nr)*recip_drF(k) |
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& *hFacC(i,j,Nr,bi,bj)*recip_hFacC(i,j,k,bi,bj) |
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salt(i,j,Nr,bi,bj) = 0. |
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ENDDO |
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ENDDO |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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C- Physics package needs to know time of year as a fraction |
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yearLength = 86400.*360. |
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tYear = mod(myTime/yearLength, 1. _d 0) |
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c tYear = myTime/(86400.*360.) - |
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c & FLOAT(INT(myTime/(86400.*360.))) |
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C-- Set surface Boundary Conditions for atmos. physics package: |
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C (Albedo, Soil moisture, Surf Temp, Land sea mask) |
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C includes some parts of S/R FORDATE from F.Molteni SPEDDY code (ver23) |
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CALL AIM_SURF_BC( tYear, myTime, myIter, bi, bj, myThid ) |
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C-- Set surface geopotential: (g * orographic height) |
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DO J=1,sNy |
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DO I=1,sNx |
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I2 = I+(J-1)*sNx |
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PHI0(I2) = gravity*topoZ(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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C-- Set topographic dependent FOROG var (originally in common SFLFIX); |
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C used to compute for wind stress over land |
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c_FM IF (IDAY.EQ.0) THEN |
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c_FM CALL SFLSET (PHIS0) |
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CALL SFLSET (PHI0, fOrogr(1,myThid), bi,bj,myThid) |
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c_FM ENDIF |
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c_FM CALL SOL_OZ (SOLC,TYEAR) |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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C- Compute atmospheric-physics tendencies (call the main AIM S/R) |
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CALL PHY_DRIVER( tYear, myTime, myIter, bi, bj, myThid ) |
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C- AIM diagnostics : write snap-shot & cumulate for TimeAve output |
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CALL AIM_DIAGNOSTICS( bi, bj, myTime, myIter, myThid ) |
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CALL AIM_AIM2DYN( bi, bj, myTime, myIter, myThid ) |
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#ifdef ALLOW_LAND |
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IF (useLand) THEN |
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C- prepare Surface flux over land for land package |
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CALL AIM_AIM2LAND( aim_landFr, bi, bj, |
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I myTime, myIter, myThid ) |
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C- Step forward land model |
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CALL LAND_STEPFWD( aim_landFr, bi, bj, |
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I myTime, myIter, myThid ) |
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C- Land diagnostics : write snap-shot & cumulate for TimeAve output |
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CALL LAND_DIAGNOSTICS( aim_landFr, bi, bj, |
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I myTime, myIter, myThid ) |
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ENDIF |
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#endif /* ALLOW_LAND */ |
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C- surface fluxes over ocean (ice-free & ice covered) |
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C used for diagnostics, thsice package and coupler |
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CALL AIM_AIM2SIOCE( aim_landFr, fmask1(1,3,myThid), |
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O prcAtm, evpAtm, flxSW, |
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I bi, bj, myTime, myIter, myThid ) |
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#ifdef ALLOW_THSICE |
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IF ( useThSIce ) THEN |
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C- Step forward sea-ice model |
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CALL THSICE_STEP_FWD( bi, bj, 1, sNx, 1, sNy, |
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I prcAtm, |
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U evpAtm, flxSW, |
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I myTime, myIter, myThid ) |
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C- Slab Ocean : step forward ocean mixed-layer temp. & salinity |
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CALL THSICE_SLAB_OCEAN( bi,bj, myThid ) |
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CALL THSICE_AVE( evpAtm, flxSW, |
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I bi, bj, myTime, myIter, myThid ) |
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ENDIF |
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#endif /* ALLOW_THSICE */ |
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#ifdef COMPONENT_MODULE |
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IF ( useCoupler ) THEN |
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CALL ATM_STORE_MY_DATA( bi, bj, myIter, myTime, myThid ) |
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ENDIF |
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#endif /* COMPONENT_MODULE */ |
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#endif /* ALLOW_AIM */ |
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RETURN |
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END |
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