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C $Header: /u/gcmpack/MITgcm/pkg/mom_fluxform/mom_fluxform.F,v 1.35 2006/05/03 23:35:11 heimbach Exp $ |
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C $Name: $ |
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|
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CBOI |
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C !TITLE: pkg/mom\_advdiff |
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C !AUTHORS: adcroft@mit.edu |
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C !INTRODUCTION: Flux-form Momentum Equations Package |
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C |
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C Package "mom\_fluxform" provides methods for calculating explicit terms |
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C in the momentum equation cast in flux-form: |
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C \begin{eqnarray*} |
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C G^u & = & -\frac{1}{\rho} \partial_x \phi_h |
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C -\nabla \cdot {\bf v} u |
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C -fv |
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C +\frac{1}{\rho} \nabla \cdot {\bf \tau}^x |
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C + \mbox{metrics} |
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C \\ |
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C G^v & = & -\frac{1}{\rho} \partial_y \phi_h |
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C -\nabla \cdot {\bf v} v |
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C +fu |
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C +\frac{1}{\rho} \nabla \cdot {\bf \tau}^y |
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C + \mbox{metrics} |
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C \end{eqnarray*} |
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C where ${\bf v}=(u,v,w)$ and $\tau$, the stress tensor, includes surface |
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C stresses as well as internal viscous stresses. |
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CEOI |
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|
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#include "MOM_FLUXFORM_OPTIONS.h" |
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|
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CBOP |
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C !ROUTINE: MOM_FLUXFORM |
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|
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C !INTERFACE: ========================================================== |
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SUBROUTINE MOM_FLUXFORM( |
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I bi,bj,iMin,iMax,jMin,jMax,k,kUp,kDown, |
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I KappaRU, KappaRV, |
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U fVerU, fVerV, |
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O guDiss, gvDiss, |
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I myTime, myIter, myThid) |
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|
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C !DESCRIPTION: |
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C Calculates all the horizontal accelerations except for the implicit surface |
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C pressure gradient and implciit vertical viscosity. |
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|
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C !USES: =============================================================== |
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C == Global variables == |
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IMPLICIT NONE |
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#include "SIZE.h" |
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#include "DYNVARS.h" |
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#include "FFIELDS.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 "SURFACE.h" |
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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 "MOM_FLUXFORM.h" |
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#endif |
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|
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C !INPUT PARAMETERS: =================================================== |
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C bi,bj :: tile indices |
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C iMin,iMax,jMin,jMAx :: loop ranges |
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C k :: vertical level |
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C kUp :: =1 or 2 for consecutive k |
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C kDown :: =2 or 1 for consecutive k |
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C KappaRU :: vertical viscosity |
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C KappaRV :: vertical viscosity |
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C fVerU :: vertical flux of U, 2 1/2 dim for pipe-lining |
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C fVerV :: vertical flux of V, 2 1/2 dim for pipe-lining |
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C guDiss :: dissipation tendency (all explicit terms), u component |
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C gvDiss :: dissipation tendency (all explicit terms), v component |
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C myTime :: current time |
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C myIter :: current time-step number |
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C myThid :: thread number |
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INTEGER bi,bj,iMin,iMax,jMin,jMax |
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INTEGER k,kUp,kDown |
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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 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 guDiss(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL gvDiss(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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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 !OUTPUT PARAMETERS: ================================================== |
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C None - updates gU() and gV() in common blocks |
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|
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C !LOCAL VARIABLES: ==================================================== |
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C i,j :: loop indices |
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C vF :: viscous flux |
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C v4F :: bi-harmonic viscous flux |
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C cF :: Coriolis acceleration |
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C mT :: Metric terms |
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C fZon :: zonal fluxes |
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C fMer :: meridional fluxes |
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C fVrUp,fVrDw :: vertical viscous fluxes at interface k-1 & k |
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INTEGER i,j |
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#ifdef ALLOW_AUTODIFF_TAMC |
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INTEGER imomkey |
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#endif |
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_RL vF(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL v4F(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL cF(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL mT(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL fZon(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL fMer(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL fVrUp(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL fVrDw(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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C afFacMom :: Tracer parameters for turning terms on and off. |
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C vfFacMom |
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C pfFacMom afFacMom - Advective terms |
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C cfFacMom vfFacMom - Eddy viscosity terms |
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C mtFacMom pfFacMom - Pressure terms |
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C cfFacMom - Coriolis terms |
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C foFacMom - Forcing |
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C mtFacMom - Metric term |
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C uDudxFac, AhDudxFac, etc ... individual term parameters for switching terms off |
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_RS hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS r_hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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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 uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL rTransU(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL rTransV(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL KE(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL viscAh_D(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL viscAh_Z(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL viscA4_D(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL viscA4_Z(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL vort3(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL hDiv(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL strain(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL tension(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL uDudxFac |
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_RL AhDudxFac |
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_RL vDudyFac |
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_RL AhDudyFac |
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_RL rVelDudrFac |
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_RL ArDudrFac |
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_RL fuFac |
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_RL mtFacU |
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_RL mtNHFacU |
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_RL uDvdxFac |
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_RL AhDvdxFac |
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_RL vDvdyFac |
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_RL AhDvdyFac |
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_RL rVelDvdrFac |
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_RL ArDvdrFac |
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_RL fvFac |
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_RL mtFacV |
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_RL mtNHFacV |
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_RL sideMaskFac |
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LOGICAL bottomDragTerms,harmonic,biharmonic,useVariableViscosity |
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CEOP |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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act0 = k - 1 |
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max0 = Nr |
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act1 = bi - myBxLo(myThid) |
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max1 = myBxHi(myThid) - myBxLo(myThid) + 1 |
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act2 = bj - myByLo(myThid) |
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max2 = myByHi(myThid) - myByLo(myThid) + 1 |
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act3 = myThid - 1 |
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max3 = nTx*nTy |
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act4 = ikey_dynamics - 1 |
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imomkey = (act0 + 1) |
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& + act1*max0 |
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& + act2*max0*max1 |
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& + act3*max0*max1*max2 |
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& + act4*max0*max1*max2*max3 |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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|
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C Initialise intermediate terms |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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vF(i,j) = 0. |
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v4F(i,j) = 0. |
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cF(i,j) = 0. |
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mT(i,j) = 0. |
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fZon(i,j) = 0. |
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fMer(i,j) = 0. |
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fVrUp(i,j)= 0. |
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fVrDw(i,j)= 0. |
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rTransU(i,j)= 0. |
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rTransV(i,j)= 0. |
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strain(i,j) = 0. |
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tension(i,j)= 0. |
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guDiss(i,j) = 0. |
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gvDiss(i,j) = 0. |
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#ifdef ALLOW_AUTODIFF_TAMC |
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vort3(i,j) = 0. _d 0 |
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strain(i,j) = 0. _d 0 |
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tension(i,j) = 0. _d 0 |
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#endif |
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ENDDO |
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ENDDO |
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|
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C-- Term by term tracer parmeters |
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C o U momentum equation |
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uDudxFac = afFacMom*1. |
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AhDudxFac = vfFacMom*1. |
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vDudyFac = afFacMom*1. |
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AhDudyFac = vfFacMom*1. |
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rVelDudrFac = afFacMom*1. |
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ArDudrFac = vfFacMom*1. |
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mtFacU = mtFacMom*1. |
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mtNHFacU = 1. |
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fuFac = cfFacMom*1. |
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C o V momentum equation |
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uDvdxFac = afFacMom*1. |
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AhDvdxFac = vfFacMom*1. |
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vDvdyFac = afFacMom*1. |
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AhDvdyFac = vfFacMom*1. |
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rVelDvdrFac = afFacMom*1. |
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ArDvdrFac = vfFacMom*1. |
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mtFacV = mtFacMom*1. |
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mtNHFacV = 1. |
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fvFac = cfFacMom*1. |
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|
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IF (implicitViscosity) THEN |
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ArDudrFac = 0. |
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ArDvdrFac = 0. |
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ENDIF |
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|
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C note: using standard stencil (no mask) results in under-estimating |
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C vorticity at a no-slip boundary by a factor of 2 = sideDragFactor |
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IF ( no_slip_sides ) THEN |
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sideMaskFac = sideDragFactor |
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ELSE |
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sideMaskFac = 0. _d 0 |
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ENDIF |
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|
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IF ( no_slip_bottom |
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& .OR. bottomDragQuadratic.NE.0. |
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& .OR. bottomDragLinear.NE.0.) THEN |
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bottomDragTerms=.TRUE. |
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ELSE |
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bottomDragTerms=.FALSE. |
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ENDIF |
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|
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C-- Calculate open water fraction at vorticity points |
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CALL MOM_CALC_HFACZ(bi,bj,k,hFacZ,r_hFacZ,myThid) |
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|
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C---- Calculate common quantities used in both U and V equations |
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C Calculate tracer cell face open areas |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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xA(i,j) = _dyG(i,j,bi,bj) |
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& *drF(k)*_hFacW(i,j,k,bi,bj) |
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yA(i,j) = _dxG(i,j,bi,bj) |
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& *drF(k)*_hFacS(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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|
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C Make local copies of horizontal flow field |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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uFld(i,j) = uVel(i,j,k,bi,bj) |
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vFld(i,j) = vVel(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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|
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C Calculate velocity field "volume transports" through tracer cell faces. |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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uTrans(i,j) = uFld(i,j)*xA(i,j) |
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vTrans(i,j) = vFld(i,j)*yA(i,j) |
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ENDDO |
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ENDDO |
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|
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CALL MOM_CALC_KE(bi,bj,k,2,uFld,vFld,KE,myThid) |
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IF ( momViscosity) THEN |
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CALL MOM_CALC_HDIV(bi,bj,k,2,uFld,vFld,hDiv,myThid) |
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CALL MOM_CALC_RELVORT3(bi,bj,k,uFld,vFld,hFacZ,vort3,myThid) |
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CALL MOM_CALC_TENSION(bi,bj,k,uFld,vFld,tension,myThid) |
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CALL MOM_CALC_STRAIN(bi,bj,k,uFld,vFld,hFacZ,strain,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 ( hFacZ(i,j).EQ.0. ) THEN |
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vort3(i,j) = sideMaskFac*vort3(i,j) |
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strain(i,j) = sideMaskFac*strain(i,j) |
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ENDIF |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_DIAGNOSTICS |
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IF ( useDiagnostics ) THEN |
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CALL DIAGNOSTICS_FILL(hDiv, 'momHDiv ',k,1,2,bi,bj,myThid) |
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CALL DIAGNOSTICS_FILL(vort3, 'momVort3',k,1,2,bi,bj,myThid) |
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CALL DIAGNOSTICS_FILL(tension,'Tension ',k,1,2,bi,bj,myThid) |
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CALL DIAGNOSTICS_FILL(strain, 'Strain ',k,1,2,bi,bj,myThid) |
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ENDIF |
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#endif |
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ENDIF |
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|
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C--- First call (k=1): compute vertical adv. flux fVerU(kUp) & fVerV(kUp) |
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IF (momAdvection.AND.k.EQ.1) THEN |
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|
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C- Calculate vertical transports above U & V points (West & South face): |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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# ifdef NONLIN_FRSURF |
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# ifndef DISABLE_RSTAR_CODE |
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CADJ STORE dwtransc(:,:,bi,bj) = |
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CADJ & comlev1_bibj_k, key = imomkey, byte = isbyte |
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CADJ STORE dwtransu(:,:,bi,bj) = |
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CADJ & comlev1_bibj_k, key = imomkey, byte = isbyte |
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CADJ STORE dwtransv(:,:,bi,bj) = |
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CADJ & comlev1_bibj_k, key = imomkey, byte = isbyte |
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# endif |
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# endif /* NONLIN_FRSURF */ |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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CALL MOM_CALC_RTRANS( k, bi, bj, |
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O rTransU, rTransV, |
| 320 |
I myTime, myIter, myThid) |
| 321 |
|
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C- Free surface correction term (flux at k=1) |
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CALL MOM_U_ADV_WU( bi,bj,k,uVel,wVel,rTransU, |
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O fVerU(1-OLx,1-OLy,kUp), myThid ) |
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|
| 326 |
CALL MOM_V_ADV_WV( bi,bj,k,vVel,wVel,rTransV, |
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O fVerV(1-OLx,1-OLy,kUp), myThid ) |
| 328 |
|
| 329 |
C--- endif momAdvection & k=1 |
| 330 |
ENDIF |
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|
| 332 |
|
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C--- Calculate vertical transports (at k+1) below U & V points : |
| 334 |
IF (momAdvection) THEN |
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CALL MOM_CALC_RTRANS( k+1, bi, bj, |
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O rTransU, rTransV, |
| 337 |
I myTime, myIter, myThid) |
| 338 |
ENDIF |
| 339 |
|
| 340 |
IF (momViscosity) THEN |
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CALL MOM_CALC_VISC( |
| 342 |
I bi,bj,k, |
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O viscAh_Z,viscAh_D,viscA4_Z,viscA4_D, |
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O harmonic,biharmonic,useVariableViscosity, |
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I hDiv,vort3,tension,strain,KE,hFacZ, |
| 346 |
I myThid) |
| 347 |
ENDIF |
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|
| 349 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 350 |
|
| 351 |
C---- Zonal momentum equation starts here |
| 352 |
|
| 353 |
IF (momAdvection) THEN |
| 354 |
C--- Calculate mean fluxes (advection) between cells for zonal flow. |
| 355 |
|
| 356 |
C-- Zonal flux (fZon is at east face of "u" cell) |
| 357 |
C Mean flow component of zonal flux -> fZon |
| 358 |
CALL MOM_U_ADV_UU(bi,bj,k,uTrans,uFld,fZon,myThid) |
| 359 |
|
| 360 |
C-- Meridional flux (fMer is at south face of "u" cell) |
| 361 |
C Mean flow component of meridional flux -> fMer |
| 362 |
CALL MOM_U_ADV_VU(bi,bj,k,vTrans,uFld,fMer,myThid) |
| 363 |
|
| 364 |
C-- Vertical flux (fVer is at upper face of "u" cell) |
| 365 |
C Mean flow component of vertical flux (at k+1) -> fVer |
| 366 |
CALL MOM_U_ADV_WU( |
| 367 |
I bi,bj,k+1,uVel,wVel,rTransU, |
| 368 |
O fVerU(1-OLx,1-OLy,kDown), myThid ) |
| 369 |
|
| 370 |
C-- Tendency is minus divergence of the fluxes + coriolis + pressure term |
| 371 |
DO j=jMin,jMax |
| 372 |
DO i=iMin,iMax |
| 373 |
gU(i,j,k,bi,bj) = |
| 374 |
#ifdef OLD_UV_GEOM |
| 375 |
& -_recip_hFacW(i,j,k,bi,bj)*recip_drF(k)/ |
| 376 |
& ( 0.5 _d 0*(rA(i,j,bi,bj)+rA(i-1,j,bi,bj)) ) |
| 377 |
#else |
| 378 |
& -_recip_hFacW(i,j,k,bi,bj)*recip_drF(k) |
| 379 |
& *recip_rAw(i,j,bi,bj) |
| 380 |
#endif |
| 381 |
& *( ( fZon(i,j ) - fZon(i-1,j) )*uDudxFac |
| 382 |
& +( fMer(i,j+1) - fMer(i, j) )*vDudyFac |
| 383 |
& +(fVerU(i,j,kDown) - fVerU(i,j,kUp))*rkSign*rVelDudrFac |
| 384 |
& ) |
| 385 |
ENDDO |
| 386 |
ENDDO |
| 387 |
|
| 388 |
#ifdef ALLOW_DIAGNOSTICS |
| 389 |
IF ( useDiagnostics ) THEN |
| 390 |
CALL DIAGNOSTICS_FILL(fZon,'ADVx_Um ',k,1,2,bi,bj,myThid) |
| 391 |
CALL DIAGNOSTICS_FILL(fMer,'ADVy_Um ',k,1,2,bi,bj,myThid) |
| 392 |
CALL DIAGNOSTICS_FILL(fVerU(1-Olx,1-Oly,kUp), |
| 393 |
& 'ADVrE_Um',k,1,2,bi,bj,myThid) |
| 394 |
ENDIF |
| 395 |
#endif |
| 396 |
|
| 397 |
#ifdef NONLIN_FRSURF |
| 398 |
C-- account for 3.D divergence of the flow in rStar coordinate: |
| 399 |
# ifndef DISABLE_RSTAR_CODE |
| 400 |
IF ( select_rStar.GT.0 ) THEN |
| 401 |
DO j=jMin,jMax |
| 402 |
DO i=iMin,iMax |
| 403 |
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj) |
| 404 |
& - (rStarExpW(i,j,bi,bj) - 1. _d 0)/deltaTfreesurf |
| 405 |
& *uVel(i,j,k,bi,bj) |
| 406 |
ENDDO |
| 407 |
ENDDO |
| 408 |
ENDIF |
| 409 |
IF ( select_rStar.LT.0 ) THEN |
| 410 |
DO j=jMin,jMax |
| 411 |
DO i=iMin,iMax |
| 412 |
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj) |
| 413 |
& - rStarDhWDt(i,j,bi,bj)*uVel(i,j,k,bi,bj) |
| 414 |
ENDDO |
| 415 |
ENDDO |
| 416 |
ENDIF |
| 417 |
# endif /* DISABLE_RSTAR_CODE */ |
| 418 |
#endif /* NONLIN_FRSURF */ |
| 419 |
|
| 420 |
ELSE |
| 421 |
C- if momAdvection / else |
| 422 |
DO j=1-OLy,sNy+OLy |
| 423 |
DO i=1-OLx,sNx+OLx |
| 424 |
gU(i,j,k,bi,bj) = 0. _d 0 |
| 425 |
ENDDO |
| 426 |
ENDDO |
| 427 |
|
| 428 |
C- endif momAdvection. |
| 429 |
ENDIF |
| 430 |
|
| 431 |
IF (momViscosity) THEN |
| 432 |
C--- Calculate eddy fluxes (dissipation) between cells for zonal flow. |
| 433 |
|
| 434 |
C Bi-harmonic term del^2 U -> v4F |
| 435 |
IF (biharmonic) |
| 436 |
& CALL MOM_U_DEL2U(bi,bj,k,uFld,hFacZ,v4f,myThid) |
| 437 |
|
| 438 |
C Laplacian and bi-harmonic terms, Zonal Fluxes -> fZon |
| 439 |
CALL MOM_U_XVISCFLUX(bi,bj,k,uFld,v4F,fZon, |
| 440 |
I viscAh_D,viscA4_D,myThid) |
| 441 |
|
| 442 |
C Laplacian and bi-harmonic termis, Merid Fluxes -> fMer |
| 443 |
CALL MOM_U_YVISCFLUX(bi,bj,k,uFld,v4F,hFacZ,fMer, |
| 444 |
I viscAh_Z,viscA4_Z,myThid) |
| 445 |
|
| 446 |
C Eddy component of vertical flux (interior component only) -> fVrUp & fVrDw |
| 447 |
IF (.NOT.implicitViscosity) THEN |
| 448 |
CALL MOM_U_RVISCFLUX(bi,bj, k, uVel,KappaRU,fVrUp,myThid) |
| 449 |
CALL MOM_U_RVISCFLUX(bi,bj,k+1,uVel,KappaRU,fVrDw,myThid) |
| 450 |
ENDIF |
| 451 |
|
| 452 |
C-- Tendency is minus divergence of the fluxes |
| 453 |
DO j=jMin,jMax |
| 454 |
DO i=iMin,iMax |
| 455 |
guDiss(i,j) = |
| 456 |
#ifdef OLD_UV_GEOM |
| 457 |
& -_recip_hFacW(i,j,k,bi,bj)*recip_drF(k)/ |
| 458 |
& ( 0.5 _d 0*(rA(i,j,bi,bj)+rA(i-1,j,bi,bj)) ) |
| 459 |
#else |
| 460 |
& -_recip_hFacW(i,j,k,bi,bj)*recip_drF(k) |
| 461 |
& *recip_rAw(i,j,bi,bj) |
| 462 |
#endif |
| 463 |
& *( ( fZon(i,j ) - fZon(i-1,j) )*AhDudxFac |
| 464 |
& +( fMer(i,j+1) - fMer(i, j) )*AhDudyFac |
| 465 |
& +( fVrDw(i,j) - fVrUp(i,j) )*rkSign*ArDudrFac |
| 466 |
& ) |
| 467 |
ENDDO |
| 468 |
ENDDO |
| 469 |
|
| 470 |
#ifdef ALLOW_DIAGNOSTICS |
| 471 |
IF ( useDiagnostics ) THEN |
| 472 |
CALL DIAGNOSTICS_FILL(fZon, 'VISCx_Um',k,1,2,bi,bj,myThid) |
| 473 |
CALL DIAGNOSTICS_FILL(fMer, 'VISCy_Um',k,1,2,bi,bj,myThid) |
| 474 |
IF (.NOT.implicitViscosity) |
| 475 |
& CALL DIAGNOSTICS_FILL(fVrUp,'VISrE_Um',k,1,2,bi,bj,myThid) |
| 476 |
ENDIF |
| 477 |
#endif |
| 478 |
|
| 479 |
C-- No-slip and drag BCs appear as body forces in cell abutting topography |
| 480 |
IF (no_slip_sides) THEN |
| 481 |
C- No-slip BCs impose a drag at walls... |
| 482 |
CALL MOM_U_SIDEDRAG( |
| 483 |
I bi,bj,k, |
| 484 |
I uFld, v4f, hFacZ, |
| 485 |
I viscAh_Z,viscA4_Z, |
| 486 |
I harmonic,biharmonic,useVariableViscosity, |
| 487 |
O vF, |
| 488 |
I myThid) |
| 489 |
DO j=jMin,jMax |
| 490 |
DO i=iMin,iMax |
| 491 |
gUdiss(i,j) = gUdiss(i,j) + vF(i,j) |
| 492 |
ENDDO |
| 493 |
ENDDO |
| 494 |
ENDIF |
| 495 |
C- No-slip BCs impose a drag at bottom |
| 496 |
IF (bottomDragTerms) THEN |
| 497 |
CALL MOM_U_BOTTOMDRAG(bi,bj,k,uFld,KE,KappaRU,vF,myThid) |
| 498 |
DO j=jMin,jMax |
| 499 |
DO i=iMin,iMax |
| 500 |
gUdiss(i,j) = gUdiss(i,j) + vF(i,j) |
| 501 |
ENDDO |
| 502 |
ENDDO |
| 503 |
ENDIF |
| 504 |
|
| 505 |
#ifdef ALLOW_SHELFICE |
| 506 |
IF (useShelfIce) THEN |
| 507 |
CALL SHELFICE_U_DRAG(bi,bj,k,uFld,KE,KappaRU,vF,myThid) |
| 508 |
DO j=jMin,jMax |
| 509 |
DO i=iMin,iMax |
| 510 |
gUdiss(i,j) = gUdiss(i,j) + vF(i,j) |
| 511 |
ENDDO |
| 512 |
ENDDO |
| 513 |
ENDIF |
| 514 |
#endif /* ALLOW_SHELFICE */ |
| 515 |
|
| 516 |
C- endif momViscosity |
| 517 |
ENDIF |
| 518 |
|
| 519 |
C-- Forcing term (moved to timestep.F) |
| 520 |
c IF (momForcing) |
| 521 |
c & CALL EXTERNAL_FORCING_U( |
| 522 |
c I iMin,iMax,jMin,jMax,bi,bj,k, |
| 523 |
c I myTime,myThid) |
| 524 |
|
| 525 |
C-- Metric terms for curvilinear grid systems |
| 526 |
IF (useNHMTerms) THEN |
| 527 |
C o Non-Hydrostatic (spherical) metric terms |
| 528 |
CALL MOM_U_METRIC_NH(bi,bj,k,uFld,wVel,mT,myThid) |
| 529 |
DO j=jMin,jMax |
| 530 |
DO i=iMin,iMax |
| 531 |
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)+mtNHFacU*mT(i,j) |
| 532 |
ENDDO |
| 533 |
ENDDO |
| 534 |
ENDIF |
| 535 |
IF ( usingSphericalPolarGrid .AND. metricTerms ) THEN |
| 536 |
C o Spherical polar grid metric terms |
| 537 |
CALL MOM_U_METRIC_SPHERE(bi,bj,k,uFld,vFld,mT,myThid) |
| 538 |
DO j=jMin,jMax |
| 539 |
DO i=iMin,iMax |
| 540 |
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)+mtFacU*mT(i,j) |
| 541 |
ENDDO |
| 542 |
ENDDO |
| 543 |
ENDIF |
| 544 |
IF ( usingCylindricalGrid .AND. metricTerms ) THEN |
| 545 |
C o Cylindrical grid metric terms |
| 546 |
CALL MOM_U_METRIC_CYLINDER(bi,bj,k,uFld,vFld,mT,myThid) |
| 547 |
DO j=jMin,jMax |
| 548 |
DO i=iMin,iMax |
| 549 |
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)+mtFacU*mT(i,j) |
| 550 |
ENDDO |
| 551 |
ENDDO |
| 552 |
ENDIF |
| 553 |
|
| 554 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 555 |
|
| 556 |
C---- Meridional momentum equation starts here |
| 557 |
|
| 558 |
IF (momAdvection) THEN |
| 559 |
C--- Calculate mean fluxes (advection) between cells for meridional flow. |
| 560 |
C Mean flow component of zonal flux -> fZon |
| 561 |
CALL MOM_V_ADV_UV(bi,bj,k,uTrans,vFld,fZon,myThid) |
| 562 |
|
| 563 |
C-- Meridional flux (fMer is at north face of "v" cell) |
| 564 |
C Mean flow component of meridional flux -> fMer |
| 565 |
CALL MOM_V_ADV_VV(bi,bj,k,vTrans,vFld,fMer,myThid) |
| 566 |
|
| 567 |
C-- Vertical flux (fVer is at upper face of "v" cell) |
| 568 |
C Mean flow component of vertical flux (at k+1) -> fVerV |
| 569 |
CALL MOM_V_ADV_WV( |
| 570 |
I bi,bj,k+1,vVel,wVel,rTransV, |
| 571 |
O fVerV(1-OLx,1-OLy,kDown), myThid ) |
| 572 |
|
| 573 |
C-- Tendency is minus divergence of the fluxes + coriolis + pressure term |
| 574 |
DO j=jMin,jMax |
| 575 |
DO i=iMin,iMax |
| 576 |
gV(i,j,k,bi,bj) = |
| 577 |
#ifdef OLD_UV_GEOM |
| 578 |
& -_recip_hFacS(i,j,k,bi,bj)*recip_drF(k)/ |
| 579 |
& ( 0.5 _d 0*(_rA(i,j,bi,bj)+_rA(i,j-1,bi,bj)) ) |
| 580 |
#else |
| 581 |
& -_recip_hFacS(i,j,k,bi,bj)*recip_drF(k) |
| 582 |
& *recip_rAs(i,j,bi,bj) |
| 583 |
#endif |
| 584 |
& *( ( fZon(i+1,j) - fZon(i,j ) )*uDvdxFac |
| 585 |
& +( fMer(i, j) - fMer(i,j-1) )*vDvdyFac |
| 586 |
& +(fVerV(i,j,kDown) - fVerV(i,j,kUp))*rkSign*rVelDvdrFac |
| 587 |
& ) |
| 588 |
ENDDO |
| 589 |
ENDDO |
| 590 |
|
| 591 |
#ifdef ALLOW_DIAGNOSTICS |
| 592 |
IF ( useDiagnostics ) THEN |
| 593 |
CALL DIAGNOSTICS_FILL(fZon,'ADVx_Vm ',k,1,2,bi,bj,myThid) |
| 594 |
CALL DIAGNOSTICS_FILL(fMer,'ADVy_Vm ',k,1,2,bi,bj,myThid) |
| 595 |
CALL DIAGNOSTICS_FILL(fVerV(1-Olx,1-Oly,kUp), |
| 596 |
& 'ADVrE_Vm',k,1,2,bi,bj,myThid) |
| 597 |
ENDIF |
| 598 |
#endif |
| 599 |
|
| 600 |
#ifdef NONLIN_FRSURF |
| 601 |
C-- account for 3.D divergence of the flow in rStar coordinate: |
| 602 |
# ifndef DISABLE_RSTAR_CODE |
| 603 |
IF ( select_rStar.GT.0 ) THEN |
| 604 |
DO j=jMin,jMax |
| 605 |
DO i=iMin,iMax |
| 606 |
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj) |
| 607 |
& - (rStarExpS(i,j,bi,bj) - 1. _d 0)/deltaTfreesurf |
| 608 |
& *vVel(i,j,k,bi,bj) |
| 609 |
ENDDO |
| 610 |
ENDDO |
| 611 |
ENDIF |
| 612 |
IF ( select_rStar.LT.0 ) THEN |
| 613 |
DO j=jMin,jMax |
| 614 |
DO i=iMin,iMax |
| 615 |
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj) |
| 616 |
& - rStarDhSDt(i,j,bi,bj)*vVel(i,j,k,bi,bj) |
| 617 |
ENDDO |
| 618 |
ENDDO |
| 619 |
ENDIF |
| 620 |
# endif /* DISABLE_RSTAR_CODE */ |
| 621 |
#endif /* NONLIN_FRSURF */ |
| 622 |
|
| 623 |
ELSE |
| 624 |
C- if momAdvection / else |
| 625 |
DO j=1-OLy,sNy+OLy |
| 626 |
DO i=1-OLx,sNx+OLx |
| 627 |
gV(i,j,k,bi,bj) = 0. _d 0 |
| 628 |
ENDDO |
| 629 |
ENDDO |
| 630 |
|
| 631 |
C- endif momAdvection. |
| 632 |
ENDIF |
| 633 |
|
| 634 |
IF (momViscosity) THEN |
| 635 |
C--- Calculate eddy fluxes (dissipation) between cells for meridional flow. |
| 636 |
C Bi-harmonic term del^2 V -> v4F |
| 637 |
IF (biharmonic) |
| 638 |
& CALL MOM_V_DEL2V(bi,bj,k,vFld,hFacZ,v4f,myThid) |
| 639 |
|
| 640 |
C Laplacian and bi-harmonic terms, Zonal Fluxes -> fZon |
| 641 |
CALL MOM_V_XVISCFLUX(bi,bj,k,vFld,v4f,hFacZ,fZon, |
| 642 |
I viscAh_Z,viscA4_Z,myThid) |
| 643 |
|
| 644 |
C Laplacian and bi-harmonic termis, Merid Fluxes -> fMer |
| 645 |
CALL MOM_V_YVISCFLUX(bi,bj,k,vFld,v4f,fMer, |
| 646 |
I viscAh_D,viscA4_D,myThid) |
| 647 |
|
| 648 |
C Eddy component of vertical flux (interior component only) -> fVrUp & fVrDw |
| 649 |
IF (.NOT.implicitViscosity) THEN |
| 650 |
CALL MOM_V_RVISCFLUX(bi,bj, k, vVel,KappaRV,fVrUp,myThid) |
| 651 |
CALL MOM_V_RVISCFLUX(bi,bj,k+1,vVel,KappaRV,fVrDw,myThid) |
| 652 |
ENDIF |
| 653 |
|
| 654 |
C-- Tendency is minus divergence of the fluxes + coriolis + pressure term |
| 655 |
DO j=jMin,jMax |
| 656 |
DO i=iMin,iMax |
| 657 |
gvDiss(i,j) = |
| 658 |
#ifdef OLD_UV_GEOM |
| 659 |
& -_recip_hFacS(i,j,k,bi,bj)*recip_drF(k)/ |
| 660 |
& ( 0.5 _d 0*(_rA(i,j,bi,bj)+_rA(i,j-1,bi,bj)) ) |
| 661 |
#else |
| 662 |
& -_recip_hFacS(i,j,k,bi,bj)*recip_drF(k) |
| 663 |
& *recip_rAs(i,j,bi,bj) |
| 664 |
#endif |
| 665 |
& *( ( fZon(i+1,j) - fZon(i,j ) )*AhDvdxFac |
| 666 |
& +( fMer(i, j) - fMer(i,j-1) )*AhDvdyFac |
| 667 |
& +( fVrDw(i,j) - fVrUp(i,j) )*rkSign*ArDvdrFac |
| 668 |
& ) |
| 669 |
ENDDO |
| 670 |
ENDDO |
| 671 |
|
| 672 |
#ifdef ALLOW_DIAGNOSTICS |
| 673 |
IF ( useDiagnostics ) THEN |
| 674 |
CALL DIAGNOSTICS_FILL(fZon, 'VISCx_Vm',k,1,2,bi,bj,myThid) |
| 675 |
CALL DIAGNOSTICS_FILL(fMer, 'VISCy_Vm',k,1,2,bi,bj,myThid) |
| 676 |
IF (.NOT.implicitViscosity) |
| 677 |
& CALL DIAGNOSTICS_FILL(fVrUp,'VISrE_Vm',k,1,2,bi,bj,myThid) |
| 678 |
ENDIF |
| 679 |
#endif |
| 680 |
|
| 681 |
C-- No-slip and drag BCs appear as body forces in cell abutting topography |
| 682 |
IF (no_slip_sides) THEN |
| 683 |
C- No-slip BCs impose a drag at walls... |
| 684 |
CALL MOM_V_SIDEDRAG( |
| 685 |
I bi,bj,k, |
| 686 |
I vFld, v4f, hFacZ, |
| 687 |
I viscAh_Z,viscA4_Z, |
| 688 |
I harmonic,biharmonic,useVariableViscosity, |
| 689 |
O vF, |
| 690 |
I myThid) |
| 691 |
DO j=jMin,jMax |
| 692 |
DO i=iMin,iMax |
| 693 |
gvDiss(i,j) = gvDiss(i,j) + vF(i,j) |
| 694 |
ENDDO |
| 695 |
ENDDO |
| 696 |
ENDIF |
| 697 |
C- No-slip BCs impose a drag at bottom |
| 698 |
IF (bottomDragTerms) THEN |
| 699 |
CALL MOM_V_BOTTOMDRAG(bi,bj,k,vFld,KE,KappaRV,vF,myThid) |
| 700 |
DO j=jMin,jMax |
| 701 |
DO i=iMin,iMax |
| 702 |
gvDiss(i,j) = gvDiss(i,j) + vF(i,j) |
| 703 |
ENDDO |
| 704 |
ENDDO |
| 705 |
ENDIF |
| 706 |
|
| 707 |
#ifdef ALLOW_SHELFICE |
| 708 |
IF (useShelfIce) THEN |
| 709 |
CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid) |
| 710 |
DO j=jMin,jMax |
| 711 |
DO i=iMin,iMax |
| 712 |
gvDiss(i,j) = gvDiss(i,j) + vF(i,j) |
| 713 |
ENDDO |
| 714 |
ENDDO |
| 715 |
ENDIF |
| 716 |
#endif /* ALLOW_SHELFICE */ |
| 717 |
|
| 718 |
C- endif momViscosity |
| 719 |
ENDIF |
| 720 |
|
| 721 |
C-- Forcing term (moved to timestep.F) |
| 722 |
c IF (momForcing) |
| 723 |
c & CALL EXTERNAL_FORCING_V( |
| 724 |
c I iMin,iMax,jMin,jMax,bi,bj,k, |
| 725 |
c I myTime,myThid) |
| 726 |
|
| 727 |
C-- Metric terms for curvilinear grid systems |
| 728 |
IF (useNHMTerms) THEN |
| 729 |
C o Non-Hydrostatic (spherical) metric terms |
| 730 |
CALL MOM_V_METRIC_NH(bi,bj,k,vFld,wVel,mT,myThid) |
| 731 |
DO j=jMin,jMax |
| 732 |
DO i=iMin,iMax |
| 733 |
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj)+mtNHFacV*mT(i,j) |
| 734 |
ENDDO |
| 735 |
ENDDO |
| 736 |
ENDIF |
| 737 |
IF ( usingSphericalPolarGrid .AND. metricTerms ) THEN |
| 738 |
C o Spherical polar grid metric terms |
| 739 |
CALL MOM_V_METRIC_SPHERE(bi,bj,k,uFld,mT,myThid) |
| 740 |
DO j=jMin,jMax |
| 741 |
DO i=iMin,iMax |
| 742 |
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj)+mtFacV*mT(i,j) |
| 743 |
ENDDO |
| 744 |
ENDDO |
| 745 |
ENDIF |
| 746 |
IF ( usingCylindricalGrid .AND. metricTerms ) THEN |
| 747 |
C o Cylindrical grid metric terms |
| 748 |
CALL MOM_V_METRIC_CYLINDER(bi,bj,k,uFld,vFld,mT,myThid) |
| 749 |
DO j=jMin,jMax |
| 750 |
DO i=iMin,iMax |
| 751 |
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj)+mtFacV*mT(i,j) |
| 752 |
ENDDO |
| 753 |
ENDDO |
| 754 |
ENDIF |
| 755 |
|
| 756 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 757 |
|
| 758 |
C-- Coriolis term |
| 759 |
C Note. As coded here, coriolis will not work with "thin walls" |
| 760 |
c IF (useCDscheme) THEN |
| 761 |
c CALL MOM_CDSCHEME(bi,bj,k,dPhiHydX,dPhiHydY,myThid) |
| 762 |
c ELSE |
| 763 |
IF (.NOT.useCDscheme) THEN |
| 764 |
CALL MOM_U_CORIOLIS(bi,bj,k,vFld,cf,myThid) |
| 765 |
DO j=jMin,jMax |
| 766 |
DO i=iMin,iMax |
| 767 |
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)+fuFac*cf(i,j) |
| 768 |
ENDDO |
| 769 |
ENDDO |
| 770 |
#ifdef ALLOW_DIAGNOSTICS |
| 771 |
IF ( useDiagnostics ) |
| 772 |
& CALL DIAGNOSTICS_FILL(cf,'Um_Cori ',k,1,2,bi,bj,myThid) |
| 773 |
#endif |
| 774 |
CALL MOM_V_CORIOLIS(bi,bj,k,uFld,cf,myThid) |
| 775 |
DO j=jMin,jMax |
| 776 |
DO i=iMin,iMax |
| 777 |
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj)+fvFac*cf(i,j) |
| 778 |
ENDDO |
| 779 |
ENDDO |
| 780 |
#ifdef ALLOW_DIAGNOSTICS |
| 781 |
IF ( useDiagnostics ) |
| 782 |
& CALL DIAGNOSTICS_FILL(cf,'Vm_Cori ',k,1,2,bi,bj,myThid) |
| 783 |
#endif |
| 784 |
ENDIF |
| 785 |
|
| 786 |
C-- 3.D Coriolis term (horizontal momentum, Eastward component: -f'*w) |
| 787 |
IF ( nonHydrostatic.OR.quasiHydrostatic ) THEN |
| 788 |
CALL MOM_U_CORIOLIS_NH(bi,bj,k,wVel,cf,myThid) |
| 789 |
DO j=jMin,jMax |
| 790 |
DO i=iMin,iMax |
| 791 |
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)+fuFac*cf(i,j) |
| 792 |
ENDDO |
| 793 |
ENDDO |
| 794 |
IF ( usingCurvilinearGrid ) THEN |
| 795 |
C- presently, non zero angleSinC array only supported with Curvilinear-Grid |
| 796 |
CALL MOM_V_CORIOLIS_NH(bi,bj,k,wVel,cf,myThid) |
| 797 |
DO j=jMin,jMax |
| 798 |
DO i=iMin,iMax |
| 799 |
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj)+fvFac*cf(i,j) |
| 800 |
ENDDO |
| 801 |
ENDDO |
| 802 |
ENDIF |
| 803 |
ENDIF |
| 804 |
|
| 805 |
C-- Set du/dt & dv/dt on boundaries to zero |
| 806 |
DO j=jMin,jMax |
| 807 |
DO i=iMin,iMax |
| 808 |
gU(i,j,k,bi,bj) = gU(i,j,k,bi,bj)*_maskW(i,j,k,bi,bj) |
| 809 |
guDiss(i,j) = guDiss(i,j) *_maskW(i,j,k,bi,bj) |
| 810 |
gV(i,j,k,bi,bj) = gV(i,j,k,bi,bj)*_maskS(i,j,k,bi,bj) |
| 811 |
gvDiss(i,j) = gvDiss(i,j) *_maskS(i,j,k,bi,bj) |
| 812 |
ENDDO |
| 813 |
ENDDO |
| 814 |
|
| 815 |
#ifdef ALLOW_DIAGNOSTICS |
| 816 |
IF ( useDiagnostics ) THEN |
| 817 |
CALL DIAGNOSTICS_FILL(KE, 'momKE ',k,1,2,bi,bj,myThid) |
| 818 |
CALL DIAGNOSTICS_FILL(gU(1-Olx,1-Oly,k,bi,bj), |
| 819 |
& 'Um_Advec',k,1,2,bi,bj,myThid) |
| 820 |
CALL DIAGNOSTICS_FILL(gV(1-Olx,1-Oly,k,bi,bj), |
| 821 |
& 'Vm_Advec',k,1,2,bi,bj,myThid) |
| 822 |
IF (momViscosity) THEN |
| 823 |
CALL DIAGNOSTICS_FILL(guDiss,'Um_Diss ',k,1,2,bi,bj,myThid) |
| 824 |
CALL DIAGNOSTICS_FILL(gvDiss,'Vm_Diss ',k,1,2,bi,bj,myThid) |
| 825 |
ENDIF |
| 826 |
ENDIF |
| 827 |
#endif /* ALLOW_DIAGNOSTICS */ |
| 828 |
|
| 829 |
RETURN |
| 830 |
END |
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