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C $Header: /u/gcmpack/models/MITgcmUV/verification/tidal_basin_2d/code/external_forcing.F,v 1.2 2003/03/25 15:24:25 adcroft 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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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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|
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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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|
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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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|
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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 number of surface interface layer |
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INTEGER kSurface |
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_RL tidal_freq,tidal_Hscale |
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_RL Coord2longitude,longitud1,longitud2 |
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CEOP |
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|
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if ( buoyancyRelation .eq. 'OCEANICP' ) then |
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kSurface = Nr |
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else |
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kSurface = 1 |
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endif |
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|
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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. kSurface ) 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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|
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C-- Tidal body force: written as gradient of geopotential |
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C True M2 frequency is |
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c tidal_freq=2.*pi/(43200.+25.*60.) |
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C But for convenience we are using 12 hour period |
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tidal_freq=2.*pi/(43200.) |
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C Make the tide relatively strong (about 1 m) |
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tidal_Hscale=10. |
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IF ( usingCartesianGrid ) THEN |
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Coord2longitude=1./rSphere |
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ELSEIF ( usingSphericalPolarGrid ) THEN |
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Coord2longitude=pi/180. |
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ELSE |
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STOP 'Be careful about 2D!' |
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ENDIF |
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DO j=jMin,jMax |
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DO i=iMin+1,iMax |
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longitud1=XC(i-1,j,bi,bj)*Coord2longitude |
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longitud2=XC(i,j,bi,bj)*Coord2longitude |
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gU(i,j,kLev,bi,bj) = gU(i,j,kLev,bi,bj) |
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& +gravity*tidal_Hscale* |
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& ( SIN( tidal_freq*myCurrentTime + 2.*longitud2 ) |
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& -SIN( tidal_freq*myCurrentTime + 2.*longitud1 ) |
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& )*recip_DXC(i,j,bi,bj) |
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& *_maskW(i,j,kLev,bi,bj) |
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c & *min( myCurrentTime/86400. , 1.) |
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ENDDO |
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ENDDO |
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|
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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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|
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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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|
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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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|
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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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|
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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 number of surface interface layer |
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INTEGER kSurface |
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CEOP |
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|
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if ( buoyancyRelation .eq. 'OCEANICP' ) then |
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kSurface = Nr |
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else |
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kSurface = 1 |
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endif |
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|
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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. kSurface ) 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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|
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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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|
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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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|
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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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|
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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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|
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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 number of surface interface layer |
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INTEGER kSurface |
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CEOP |
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|
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if ( buoyancyRelation .eq. 'OCEANICP' ) then |
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kSurface = Nr |
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else |
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kSurface = 1 |
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endif |
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|
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C-- Forcing term |
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C Add heat in top-layer |
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IF ( kLev .EQ. kSurface ) THEN |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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gT(i,j,kLev,bi,bj)=gT(i,j,kLev,bi,bj) |
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& +maskC(i,j,kLev,bi,bj)*surfaceTendencyT(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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#ifdef SHORTWAVE_HEATING |
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C Penetrating SW radiation |
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swfracb(1)=abs(rF(klev)) |
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swfracb(2)=abs(rF(klev+1)) |
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call SWFRAC( |
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I two,minusone, |
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I myCurrentTime,myThid, |
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O swfracb) |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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gT(i,j,klev,bi,bj) = gT(i,j,klev,bi,bj) |
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& -maskC(i,j,klev,bi,bj)*Qsw(i,j,bi,bj)*(swfracb(1)-swfracb(2)) |
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& *recip_Cp*recip_rhoConst*recip_drF(klev) |
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ENDDO |
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ENDDO |
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#endif |
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|
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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_T( |
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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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|
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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( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
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|
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R EXTERNAL_FORCING_S |
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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 gS for forcing by external sources |
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C | e.g. fresh-water flux, climatalogical relaxation....... |
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C *==========================================================* |
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C \ev |
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|
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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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|
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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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|
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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 number of surface interface layer |
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INTEGER kSurface |
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CEOP |
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|
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if ( buoyancyRelation .eq. 'OCEANICP' ) then |
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kSurface = Nr |
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else |
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kSurface = 1 |
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endif |
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|
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|
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C-- Forcing term |
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C Add fresh-water in top-layer |
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IF ( kLev .EQ. kSurface ) THEN |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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gS(i,j,kLev,bi,bj)=gS(i,j,kLev,bi,bj) |
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& +maskC(i,j,kLev,bi,bj)*surfaceTendencyS(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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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_S( |
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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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|
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RETURN |
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END |
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