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C $Header: /u/gcmpack/models/MITgcmUV/model/src/dynamics.F,v 1.74 2001/07/30 20:37:45 heimbach Exp $ |
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C $Name: $ |
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|
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#include "CPP_OPTIONS.h" |
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|
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SUBROUTINE DYNAMICS(myTime, myIter, myThid) |
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C /==========================================================\ |
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C | SUBROUTINE DYNAMICS | |
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C | o Controlling routine for the explicit part of the model | |
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C | dynamics. | |
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C |==========================================================| |
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C | This routine evaluates the "dynamics" terms for each | |
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C | block of ocean in turn. Because the blocks of ocean have | |
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C | overlap regions they are independent of one another. | |
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C | If terms involving lateral integrals are needed in this | |
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C | routine care will be needed. Similarly finite-difference | |
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C | operations with stencils wider than the overlap region | |
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C | require special consideration. | |
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C | Notes | |
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C | ===== | |
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C | C*P* comments indicating place holders for which code is | |
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C | presently being developed. | |
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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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#ifdef ALLOW_PASSIVE_TRACER |
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#include "TR1.h" |
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#endif |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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# include "tamc.h" |
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# include "tamc_keys.h" |
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# include "FFIELDS.h" |
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# ifdef ALLOW_KPP |
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# include "KPP.h" |
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# endif |
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# ifdef ALLOW_GMREDI |
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# include "GMREDI.h" |
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# endif |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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|
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#ifdef ALLOW_TIMEAVE |
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#include "TIMEAVE_STATV.h" |
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#endif |
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|
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C == Routine arguments == |
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C myTime - Current time in simulation |
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C myIter - Current iteration number in simulation |
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C myThid - Thread number for this instance of the routine. |
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_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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|
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C == Local variables |
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C xA, yA - Per block temporaries holding face areas |
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C uTrans, vTrans, rTrans - Per block temporaries holding flow |
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C transport |
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C o uTrans: Zonal transport |
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C o vTrans: Meridional transport |
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C o rTrans: Vertical transport |
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C maskUp o maskUp: land/water mask for W points |
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C fVer[STUV] o fVer: Vertical flux term - note fVer |
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C is "pipelined" in the vertical |
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C so we need an fVer for each |
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C variable. |
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C rhoK, rhoKM1 - Density at current level, and level above |
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C phiHyd - Hydrostatic part of the potential phiHydi. |
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C In z coords phiHydiHyd is the hydrostatic |
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C Potential (=pressure/rho0) anomaly |
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C In p coords phiHydiHyd is the geopotential |
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C surface height anomaly. |
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C phiSurfX, - gradient of Surface potentiel (Pressure/rho, ocean) |
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C phiSurfY or geopotentiel (atmos) in X and Y direction |
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C KappaRT, - Total diffusion in vertical for T and S. |
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C KappaRS (background + spatially varying, isopycnal term). |
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C iMin, iMax - Ranges and sub-block indices on which calculations |
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C jMin, jMax are applied. |
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C bi, bj |
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C k, kup, - Index for layer above and below. kup and kDown |
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C kDown, km1 are switched with layer to be the appropriate |
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C index into fVerTerm. |
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C tauAB - Adams-Bashforth timestepping weight: 0=forward ; 1/2=Adams-Bashf. |
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_RS xA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS yA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL uTrans (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL vTrans (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL rTrans (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS maskUp (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL fVerT (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
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_RL fVerS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
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_RL fVerTr1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
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_RL fVerU (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
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_RL fVerV (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
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_RL phiHyd (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL rhokm1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL rhok (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL phiSurfX(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL phiSurfY(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL KappaRT (1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
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_RL KappaRS (1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
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_RL KappaRU (1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
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_RL KappaRV (1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
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_RL sigmaX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL sigmaY (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL sigmaR (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL tauAB |
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|
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C This is currently used by IVDC and Diagnostics |
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_RL ConvectCount (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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|
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INTEGER iMin, iMax |
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INTEGER jMin, jMax |
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INTEGER bi, bj |
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INTEGER i, j |
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INTEGER k, km1, kup, kDown |
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|
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Cjmc : add for phiHyd output <- but not working if multi tile per CPU |
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c CHARACTER*(MAX_LEN_MBUF) suff |
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c LOGICAL DIFFERENT_MULTIPLE |
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c EXTERNAL DIFFERENT_MULTIPLE |
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Cjmc(end) |
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|
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C--- The algorithm... |
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C |
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C "Correction Step" |
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C ================= |
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C Here we update the horizontal velocities with the surface |
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C pressure such that the resulting flow is either consistent |
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C with the free-surface evolution or the rigid-lid: |
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C U[n] = U* + dt x d/dx P |
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C V[n] = V* + dt x d/dy P |
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C |
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C "Calculation of Gs" |
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C =================== |
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C This is where all the accelerations and tendencies (ie. |
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C physics, parameterizations etc...) are calculated |
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C rho = rho ( theta[n], salt[n] ) |
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C b = b(rho, theta) |
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C K31 = K31 ( rho ) |
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C Gu[n] = Gu( u[n], v[n], wVel, b, ... ) |
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C Gv[n] = Gv( u[n], v[n], wVel, b, ... ) |
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C Gt[n] = Gt( theta[n], u[n], v[n], wVel, K31, ... ) |
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C Gs[n] = Gs( salt[n], u[n], v[n], wVel, K31, ... ) |
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C |
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C "Time-stepping" or "Prediction" |
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C ================================ |
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C The models variables are stepped forward with the appropriate |
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C time-stepping scheme (currently we use Adams-Bashforth II) |
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C - For momentum, the result is always *only* a "prediction" |
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C in that the flow may be divergent and will be "corrected" |
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C later with a surface pressure gradient. |
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C - Normally for tracers the result is the new field at time |
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C level [n+1} *BUT* in the case of implicit diffusion the result |
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C is also *only* a prediction. |
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C - We denote "predictors" with an asterisk (*). |
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C U* = U[n] + dt x ( 3/2 Gu[n] - 1/2 Gu[n-1] ) |
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C V* = V[n] + dt x ( 3/2 Gv[n] - 1/2 Gv[n-1] ) |
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C theta[n+1] = theta[n] + dt x ( 3/2 Gt[n] - 1/2 atG[n-1] ) |
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C salt[n+1] = salt[n] + dt x ( 3/2 Gt[n] - 1/2 atG[n-1] ) |
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C With implicit diffusion: |
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C theta* = theta[n] + dt x ( 3/2 Gt[n] - 1/2 atG[n-1] ) |
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C salt* = salt[n] + dt x ( 3/2 Gt[n] - 1/2 atG[n-1] ) |
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C (1 + dt * K * d_zz) theta[n] = theta* |
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C (1 + dt * K * d_zz) salt[n] = salt* |
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C--- |
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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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Ccs- |
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|
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C-- Start computation of dynamics |
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iMin = 1-OLx+2 |
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iMax = sNx+OLx-1 |
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jMin = 1-OLy+2 |
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jMax = sNy+OLy-1 |
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|
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C-- Explicit part of the Surface Potentiel Gradient (add in TIMESTEP) |
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C (note: this loop will be replaced by CALL CALC_GRAD_ETA) |
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IF (implicSurfPress.NE.1.) THEN |
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CALL CALC_GRAD_PHI_SURF( |
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I bi,bj,iMin,iMax,jMin,jMax, |
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I etaN, |
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O phiSurfX,phiSurfY, |
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I myThid ) |
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ENDIF |
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|
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C-- Start of dynamics loop |
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DO k=1,Nr |
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|
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C-- km1 Points to level above k (=k-1) |
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C-- kup Cycles through 1,2 to point to layer above |
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C-- kDown Cycles through 2,1 to point to current layer |
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|
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km1 = MAX(1,k-1) |
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kup = 1+MOD(k+1,2) |
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kDown= 1+MOD(k,2) |
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|
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C-- Integrate hydrostatic balance for phiHyd with BC of |
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C phiHyd(z=0)=0 |
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C distinguishe between Stagger and Non Stagger time stepping |
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IF (staggerTimeStep) THEN |
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CALL CALC_PHI_HYD( |
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I bi,bj,iMin,iMax,jMin,jMax,k, |
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I gTnm1, gSnm1, |
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U phiHyd, |
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I myThid ) |
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ELSE |
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CALL CALC_PHI_HYD( |
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I bi,bj,iMin,iMax,jMin,jMax,k, |
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I theta, salt, |
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U phiHyd, |
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I myThid ) |
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ENDIF |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE KappaRT(:,:,k) = comlev1_bibj_k, key=kkey, byte=isbyte |
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CADJ STORE KappaRS(:,:,k) = comlev1_bibj_k, key=kkey, byte=isbyte |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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|
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#ifdef INCLUDE_CALC_DIFFUSIVITY_CALL |
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C-- Calculate the total vertical diffusivity |
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CALL CALC_DIFFUSIVITY( |
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I bi,bj,iMin,iMax,jMin,jMax,k, |
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I maskUp, |
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O KappaRT,KappaRS,KappaRU,KappaRV, |
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I myThid) |
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#endif |
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|
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C-- Calculate accelerations in the momentum equations (gU, gV, ...) |
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C and step forward storing the result in gUnm1, gVnm1, etc... |
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IF ( momStepping ) THEN |
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CALL CALC_MOM_RHS( |
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I bi,bj,iMin,iMax,jMin,jMax,k,kup,kDown, |
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I phiHyd,KappaRU,KappaRV, |
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U fVerU, fVerV, |
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I myTime, myThid) |
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CALL TIMESTEP( |
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I bi,bj,iMin,iMax,jMin,jMax,k, |
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I phiHyd, phiSurfX, phiSurfY, |
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I myIter, myThid) |
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|
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#ifdef ALLOW_OBCS |
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C-- Apply open boundary conditions |
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IF (useOBCS) THEN |
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CALL OBCS_APPLY_UV( bi, bj, k, gUnm1, gVnm1, myThid ) |
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END IF |
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#endif /* ALLOW_OBCS */ |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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#ifdef INCLUDE_CD_CODE |
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ELSE |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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guCD(i,j,k,bi,bj) = 0.0 |
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gvCD(i,j,k,bi,bj) = 0.0 |
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END DO |
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END DO |
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#endif /* INCLUDE_CD_CODE */ |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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ENDIF |
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|
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|
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C-- end of dynamics k loop (1:Nr) |
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ENDDO |
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|
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|
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|
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C-- Implicit viscosity |
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IF (implicitViscosity.AND.momStepping) THEN |
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#ifdef ALLOW_AUTODIFF_TAMC |
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idkey = iikey + 3 |
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CADJ STORE gUNm1(:,:,:,bi,bj) = comlev1_bibj , key=ikey, byte=isbyte |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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CALL IMPLDIFF( |
| 281 |
I bi, bj, iMin, iMax, jMin, jMax, |
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I deltaTmom, KappaRU,recip_HFacW, |
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U gUNm1, |
| 284 |
I myThid ) |
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#ifdef ALLOW_AUTODIFF_TAMC |
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idkey = iikey + 4 |
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CADJ STORE gVNm1(:,:,:,bi,bj) = comlev1_bibj , key=ikey, byte=isbyte |
| 288 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
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CALL IMPLDIFF( |
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I bi, bj, iMin, iMax, jMin, jMax, |
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I deltaTmom, KappaRV,recip_HFacS, |
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U gVNm1, |
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I myThid ) |
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|
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#ifdef ALLOW_OBCS |
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C-- Apply open boundary conditions |
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IF (useOBCS) THEN |
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DO K=1,Nr |
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CALL OBCS_APPLY_UV( bi, bj, k, gUnm1, gVnm1, myThid ) |
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ENDDO |
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END IF |
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#endif /* ALLOW_OBCS */ |
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|
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#ifdef INCLUDE_CD_CODE |
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#ifdef ALLOW_AUTODIFF_TAMC |
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idkey = iikey + 5 |
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CADJ STORE vVelD(:,:,:,bi,bj) = comlev1_bibj , key=ikey, byte=isbyte |
| 308 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
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CALL IMPLDIFF( |
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I bi, bj, iMin, iMax, jMin, jMax, |
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I deltaTmom, KappaRU,recip_HFacW, |
| 312 |
U vVelD, |
| 313 |
I myThid ) |
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#ifdef ALLOW_AUTODIFF_TAMC |
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idkey = iikey + 6 |
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CADJ STORE uVelD(:,:,:,bi,bj) = comlev1_bibj , key=ikey, byte=isbyte |
| 317 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
| 318 |
CALL IMPLDIFF( |
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I bi, bj, iMin, iMax, jMin, jMax, |
| 320 |
I deltaTmom, KappaRV,recip_HFacS, |
| 321 |
U uVelD, |
| 322 |
I myThid ) |
| 323 |
#endif /* INCLUDE_CD_CODE */ |
| 324 |
C-- End If implicitViscosity.AND.momStepping |
| 325 |
ENDIF |
| 326 |
|
| 327 |
Cjmc : add for phiHyd output <- but not working if multi tile per CPU |
| 328 |
c IF ( DIFFERENT_MULTIPLE(dumpFreq,myTime+deltaTClock,myTime) |
| 329 |
c & .AND. buoyancyRelation .eq. 'ATMOSPHERIC' ) THEN |
| 330 |
c WRITE(suff,'(I10.10)') myIter+1 |
| 331 |
c CALL WRITE_FLD_XYZ_RL('PH.',suff,phiHyd,myIter+1,myThid) |
| 332 |
c ENDIF |
| 333 |
Cjmc(end) |
| 334 |
|
| 335 |
#ifdef ALLOW_TIMEAVE |
| 336 |
IF (taveFreq.GT.0.) THEN |
| 337 |
CALL TIMEAVE_CUMUL_1T(phiHydtave, phiHyd, Nr, |
| 338 |
I deltaTclock, bi, bj, myThid) |
| 339 |
IF (ivdc_kappa.NE.0.) THEN |
| 340 |
CALL TIMEAVE_CUMULATE(ConvectCountTave, ConvectCount, Nr, |
| 341 |
I deltaTclock, bi, bj, myThid) |
| 342 |
ENDIF |
| 343 |
ENDIF |
| 344 |
#endif /* ALLOW_TIMEAVE */ |
| 345 |
|
| 346 |
ENDDO |
| 347 |
ENDDO |
| 348 |
|
| 349 |
#ifndef EXCLUDE_DEBUGMODE |
| 350 |
If (debugMode) THEN |
| 351 |
CALL DEBUG_STATS_RL(1,EtaN,'EtaN (DYNAMICS)',myThid) |
| 352 |
CALL DEBUG_STATS_RL(Nr,uVel,'Uvel (DYNAMICS)',myThid) |
| 353 |
CALL DEBUG_STATS_RL(Nr,vVel,'Vvel (DYNAMICS)',myThid) |
| 354 |
CALL DEBUG_STATS_RL(Nr,wVel,'Wvel (DYNAMICS)',myThid) |
| 355 |
CALL DEBUG_STATS_RL(Nr,theta,'Theta (DYNAMICS)',myThid) |
| 356 |
CALL DEBUG_STATS_RL(Nr,salt,'Salt (DYNAMICS)',myThid) |
| 357 |
CALL DEBUG_STATS_RL(Nr,Gu,'Gu (DYNAMICS)',myThid) |
| 358 |
CALL DEBUG_STATS_RL(Nr,Gv,'Gv (DYNAMICS)',myThid) |
| 359 |
CALL DEBUG_STATS_RL(Nr,Gt,'Gt (DYNAMICS)',myThid) |
| 360 |
CALL DEBUG_STATS_RL(Nr,Gs,'Gs (DYNAMICS)',myThid) |
| 361 |
CALL DEBUG_STATS_RL(Nr,GuNm1,'GuNm1 (DYNAMICS)',myThid) |
| 362 |
CALL DEBUG_STATS_RL(Nr,GvNm1,'GvNm1 (DYNAMICS)',myThid) |
| 363 |
CALL DEBUG_STATS_RL(Nr,GtNm1,'GtNm1 (DYNAMICS)',myThid) |
| 364 |
CALL DEBUG_STATS_RL(Nr,GsNm1,'GsNm1 (DYNAMICS)',myThid) |
| 365 |
ENDIF |
| 366 |
#endif |
| 367 |
|
| 368 |
RETURN |
| 369 |
END |
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