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afe |
1.1 |
C $Header: /u/gcmpack/MITgcm_contrib/osse/code/external_forcing.F,v 1.1 2004/04/26 14:08:04 afe Exp $ |
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C $Name: $ |
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#include "CPP_OPTIONS.h" |
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CBOP |
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C !ROUTINE: EXTERNAL_FORCING_U |
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C !INTERFACE: |
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SUBROUTINE EXTERNAL_FORCING_U( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R EXTERNAL_FORCING_U |
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C | o Contains problem specific forcing for zonal velocity. |
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C *==========================================================* |
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C | Adds terms to gU for forcing by external sources |
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C | e.g. wind stress, bottom friction etc.................. |
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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 data == |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "FFIELDS.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C iMin - Working range of tile for applying forcing. |
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C iMax |
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C jMin |
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C jMax |
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C kLev |
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INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj |
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_RL myCurrentTime |
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INTEGER myThid |
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C Loop counters |
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INTEGER I, J |
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CEOP |
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C-- Forcing term |
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C Add windstress momentum impulse into the top-layer |
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IF ( kLev .EQ. 1 ) THEN |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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gU(i,j,kLev,bi,bj) = gU(i,j,kLev,bi,bj) |
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& +foFacMom*surfaceTendencyU(i,j,bi,bj) |
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& *_maskW(i,j,kLev,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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#if (defined (ALLOW_OBCS) && defined (ALLOW_OBCS_SPONGE)) |
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IF (useOBCS) THEN |
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CALL OBCS_SPONGE_U( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
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ENDIF |
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#endif |
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RETURN |
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END |
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CBOP |
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C !ROUTINE: EXTERNAL_FORCING_V |
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C !INTERFACE: |
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SUBROUTINE EXTERNAL_FORCING_V( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R EXTERNAL_FORCING_V |
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C | o Contains problem specific forcing for merid velocity. |
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C *==========================================================* |
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C | Adds terms to gV for forcing by external sources |
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C | e.g. wind stress, bottom friction etc.................. |
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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 data == |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "FFIELDS.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C iMin - Working range of tile for applying forcing. |
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C iMax |
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C jMin |
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C jMax |
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C kLev |
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INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj |
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_RL myCurrentTime |
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INTEGER myThid |
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C Loop counters |
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INTEGER I, J |
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CEOP |
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C-- Forcing term |
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C Add windstress momentum impulse into the top-layer |
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IF ( kLev .EQ. 1 ) THEN |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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gV(i,j,kLev,bi,bj) = gV(i,j,kLev,bi,bj) |
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& +foFacMom*surfaceTendencyV(i,j,bi,bj) |
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& *_maskS(i,j,kLev,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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#if (defined (ALLOW_OBCS) && defined (ALLOW_OBCS_SPONGE)) |
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IF (useOBCS) THEN |
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CALL OBCS_SPONGE_V( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
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ENDIF |
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#endif |
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RETURN |
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END |
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CBOP |
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C !ROUTINE: EXTERNAL_FORCING_T |
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C !INTERFACE: |
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SUBROUTINE EXTERNAL_FORCING_T( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R EXTERNAL_FORCING_T |
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C | o Contains problem specific forcing for temperature. |
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C *==========================================================* |
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C | Adds terms to gT for forcing by external sources |
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C | e.g. heat flux, climatalogical relaxation.............. |
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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 data == |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "FFIELDS.h" |
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#ifdef SHORTWAVE_HEATING |
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integer two |
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_RL minusone |
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parameter (two=2,minusone=-1.) |
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_RL swfracb(two) |
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#endif |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C iMin - Working range of tile for applying forcing. |
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C iMax |
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C jMin |
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C jMax |
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C kLev |
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INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj |
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_RL myCurrentTime |
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INTEGER myThid |
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CEndOfInterface |
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C Loop counters |
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INTEGER I, J |
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C iG, jG :: Global index temps. |
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C hC, hW, hE, hN, hS :: Fractional vertical distance open to fluid temps. |
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C dFlux[WENS] :: Diffusive flux normal to each cell face. |
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C faceArea :: Temp. for holding area normal to tempurature gradient. |
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INTEGER iG, jG |
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_RL hC, hW, hE, hN, hS |
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_RL dFluxW, dFluxE, dFluxN, dFluxS |
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_RL faceArea |
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CEOP |
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C-- Forcing term |
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C Add term which represents the diffusive flux from a circular cylinder of temperature tCyl in the |
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C interior of the simulation domain. Result is a tendency which is determined from the finite |
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C volume formulated divergence of the diffusive heat flux due to the local cylinder |
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C temperature, fluid temperature difference. |
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C kDiffCyl :: Diffusion coefficient |
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C tCyl :: Temperature of the cylinder |
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C iGSource :: Index space I (global) coordinate for source center. |
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C jGSource :: Index space J (global) coordinate for source center. |
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C rSource :: Extent of the source term region. Loop will skip checking points outside |
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C :: this region. Within this region the source heating will be added |
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C :: to any points that are at a land - fluid boundary. rSource is in grid |
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C :: points, so that points checked are ophi(iGlobal,jGlobal) such that |
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C :: iGlobal=iGsource +/- rSource, jGlobal = jGsource +/- rSource. |
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C :: rSource, iGSource and jGSource only need to define a quadrilateral that |
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C :: includes the cylinder and no other land, they do not need to be exact. |
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_RL kDiffCyl |
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INTEGER rSource |
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INTEGER iGSource |
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INTEGER jGSource |
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CHARACTER*(MAX_LEN_MBUF+1000) msgBuf |
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kDiffCyl = 3. _d -7 |
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rSource = 3 |
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iGSource = 30 |
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jGSource = 8 |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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dFluxW = 0. |
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dFluxE = 0. |
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dFluxN = 0. |
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dFluxS = 0. |
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jG = myYGlobalLo-1+(bj-1)*sNy+J |
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iG = myXGlobalLo-1+(bi-1)*sNx+I |
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c IF(jG .GE. jGSource-rSource .AND. jG .LE. jGSource+rSource) THEN |
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IF(jG .LE. 10) THEN |
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tCyl = 0 |
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ELSE |
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tCyl = 20 |
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ENDIF |
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c IF(iG .GE. iGSource-rSource .AND. iG .LE. iGSource+rSource) THEN |
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hC = hFacC(i ,j ,kLev,bi,bj) |
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hW = hFacW(i ,j ,kLev,bi,bj) |
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hE = hFacW(i+1,j ,kLev,bi,bj) |
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hN = hFacS(i ,j+1,kLev,bi,bj) |
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hS = hFacS(i ,j ,kLev,bi,bj) |
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IF ( hC .NE. 0. .AND .hW .EQ. 0. ) THEN |
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C Cylinder to west |
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faceArea = drF(kLev)*dyG(i,j,bi,bj) |
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dFluxW = |
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& -faceArea*kDiffCyl*(theta(i,j,kLev,bi,bj) - tCyl) |
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& *recip_dxC(i,j,bi,bj) |
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ENDIF |
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IF ( hC .NE. 0. .AND .hE .EQ. 0. ) THEN |
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C Cylinder to east |
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faceArea = drF(kLev)*dyG(i+1,j,bi,bj) |
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dFluxE = |
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& -faceArea*kDiffCyl*(tCyl - theta(i,j,kLev,bi,bj)) |
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& *recip_dxC(i,j,bi,bj) |
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ENDIF |
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IF ( hC .NE. 0. .AND .hN .EQ. 0. ) THEN |
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C Cylinder to north |
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faceArea = drF(kLev)*dxG(i,j+1,bi,bj) |
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dFluxN = |
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& -faceArea*kDiffCyl*(tCyl-theta(i,j,kLev,bi,bj)) |
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& *recip_dyC(i,j,bi,bj) |
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ENDIF |
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IF ( hC .NE. 0. .AND .hS .EQ. 0. ) THEN |
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C Cylinder to south |
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faceArea = drF(kLev)*dxG(i,j,bi,bj) |
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dFluxS = |
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& -faceArea*kDiffCyl*(theta(i,j,kLev,bi,bj) - tCyl) |
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& *recip_dyC(i,j,bi,bj) |
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ENDIF |
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c ENDIF |
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c ENDIF |
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C Net tendency term is minus flux divergence divided by the volume. |
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gT(i,j,kLev,bi,bj) = gT(i,j,kLev,bi,bj) |
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& -_recip_hFacC(i,j,kLev,bi,bj)*recip_drF(kLev) |
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& *recip_rA(i,j,bi,bj) |
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& *( |
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& dFluxE-dFluxW |
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& +dFluxN-dFluxS |
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& ) |
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ENDDO |
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ENDDO |
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RETURN |
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END |
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CBOP |
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C !ROUTINE: EXTERNAL_FORCING_S |
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C !INTERFACE: |
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SUBROUTINE EXTERNAL_FORCING_S( |
| 288 |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
| 289 |
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I myCurrentTime,myThid) |
| 290 |
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C !DESCRIPTION: \bv |
| 292 |
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C *==========================================================* |
| 293 |
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C | S/R EXTERNAL_FORCING_S |
| 294 |
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C | o Contains problem specific forcing for merid velocity. |
| 295 |
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C *==========================================================* |
| 296 |
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C | Adds terms to gS for forcing by external sources |
| 297 |
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C | e.g. fresh-water flux, climatalogical relaxation....... |
| 298 |
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C *==========================================================* |
| 299 |
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C \ev |
| 300 |
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| 301 |
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C !USES: |
| 302 |
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IMPLICIT NONE |
| 303 |
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C == Global data == |
| 304 |
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#include "SIZE.h" |
| 305 |
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#include "EEPARAMS.h" |
| 306 |
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#include "PARAMS.h" |
| 307 |
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#include "GRID.h" |
| 308 |
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#include "DYNVARS.h" |
| 309 |
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#include "FFIELDS.h" |
| 310 |
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| 311 |
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C !INPUT/OUTPUT PARAMETERS: |
| 312 |
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C == Routine arguments == |
| 313 |
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C iMin - Working range of tile for applying forcing. |
| 314 |
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C iMax |
| 315 |
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C jMin |
| 316 |
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C jMax |
| 317 |
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C kLev |
| 318 |
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INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj |
| 319 |
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_RL myCurrentTime |
| 320 |
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INTEGER myThid |
| 321 |
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| 322 |
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C !LOCAL VARIABLES: |
| 323 |
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C == Local variables == |
| 324 |
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C Loop counters |
| 325 |
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INTEGER I, J |
| 326 |
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CEOP |
| 327 |
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| 328 |
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C-- Forcing term |
| 329 |
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C Add fresh-water in top-layer |
| 330 |
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IF ( kLev .EQ. 1 ) THEN |
| 331 |
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DO j=jMin,jMax |
| 332 |
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DO i=iMin,iMax |
| 333 |
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gS(i,j,kLev,bi,bj)=gS(i,j,kLev,bi,bj) |
| 334 |
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& +maskC(i,j,kLev,bi,bj)*surfaceTendencyS(i,j,bi,bj) |
| 335 |
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ENDDO |
| 336 |
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ENDDO |
| 337 |
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ENDIF |
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| 339 |
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#if (defined (ALLOW_OBCS) && defined (ALLOW_OBCS_SPONGE)) |
| 340 |
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IF (useOBCS) THEN |
| 341 |
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CALL OBCS_SPONGE_S( |
| 342 |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
| 343 |
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I myCurrentTime,myThid) |
| 344 |
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ENDIF |
| 345 |
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#endif |
| 346 |
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| 347 |
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RETURN |
| 348 |
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END |
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